Apply C++11 fixits

modernize-use-auto modernize-use-nullptr modernize-use-override modernize-use-using
author: Thorbjørn Lindeijer <bjorn@lindeijer.nl> 2024-01-26 16:07:54 +0100
committer: Thorbjørn Lindeijer <bjorn@lindeijer.nl> 2024-01-26 16:07:54 +0100
commit: 5afe88df2538274859a162ffd63ed52118e80c19 (patch)
tree: b610dfd58dc748fd63f49565b2a43eea2316714f /src
parent: 73ba2a95f5bd4a0dd09af52d5864800be2b0a4c6 (diff)
download: mana-5afe88df2538274859a162ffd63ed52118e80c19.tar.gz
mana-5afe88df2538274859a162ffd63ed52118e80c19.tar.bz2
mana-5afe88df2538274859a162ffd63ed52118e80c19.tar.xz
mana-5afe88df2538274859a162ffd63ed52118e80c19.zip
357 files changed, 1946 insertions, 1948 deletions
diff --git a/src/actor.cpp b/src/actor.cpp
index 63bded0d..e1fffaf9 100644
--- a/src/actor.cpp
+++ b/src/actor.cpp
@@ -25,12 +25,12 @@
 #include "resources/image.h"
 
 Actor::Actor():
-        mMap(NULL)
+        mMap(nullptr)
 {}
 
 Actor::~Actor()
 {
-    setMap(NULL);
+    setMap(nullptr);
 }
 
 void Actor::setMap(Map *map)
diff --git a/src/actor.h b/src/actor.h
index 843b3d96..9d5886e8 100644
--- a/src/actor.h
+++ b/src/actor.h
@@ -30,7 +30,7 @@ class Graphics;
 class Image;
 class Map;
 
-typedef std::list<Actor*> Actors;
+using Actors = std::list<Actor *>;
 
 class Actor
 {
diff --git a/src/actorsprite.cpp b/src/actorsprite.cpp
index 3b3a83ef..58ffa6e7 100644
--- a/src/actorsprite.cpp
+++ b/src/actorsprite.cpp
@@ -51,14 +51,14 @@ ActorSprite::ActorSprite(int id):
     mStatusParticleEffects(&mStunParticleEffects, false),
     mChildParticleEffects(&mStatusParticleEffects, false),
     mMustResetParticles(false),
-    mUsedTargetCursor(NULL)
+    mUsedTargetCursor(nullptr)
 {}
 
 ActorSprite::~ActorSprite()
 {
-    setMap(NULL);
+    setMap(nullptr);
 
-    mUsedTargetCursor = NULL;
+    mUsedTargetCursor = nullptr;
 
     // Notify listeners of the destruction.
     Event event(Event::Destroyed);
@@ -112,7 +112,7 @@ void ActorSprite::logic()
     if (mMustResetParticles)
     {
         mMustResetParticles = false;
-        for (std::set<int>::iterator it = mStatusEffects.begin();
+        for (auto it = mStatusEffects.begin();
              it != mStatusEffects.end(); it++)
         {
             const StatusEffect *effect = StatusEffect::getStatusEffect(*it, true);
@@ -161,13 +161,13 @@ struct EffectDescription {
     std::string mSFXEffect;
 };
 
-static EffectDescription *default_effect = NULL;
+static EffectDescription *default_effect = nullptr;
 static std::map<int, EffectDescription *> effects;
 static bool effects_initialized = false;
 
 static EffectDescription *getEffectDescription(xmlNodePtr node, int *id)
 {
-    EffectDescription *ed = new EffectDescription;
+    auto *ed = new EffectDescription;
 
     *id = atoi(XML::getProperty(node, "id", "-1").c_str());
     ed->mSFXEffect = XML::getProperty(node, "audio", "");
@@ -187,7 +187,7 @@ static EffectDescription *getEffectDescription(int effectId)
         {
             logger->log("Error loading being effects file: "
                     EFFECTS_FILE);
-            return NULL;
+            return nullptr;
         }
 
         for_each_xml_child_node(node, root)
@@ -449,7 +449,7 @@ void ActorSprite::loadTargetCursor(const std::string &filename,
         return;
     }
 
-    Animation *anim = new Animation;
+    auto *anim = new Animation;
 
     for (unsigned int i = 0; i < currentImageSet->size(); ++i)
     {
@@ -458,7 +458,7 @@ void ActorSprite::loadTargetCursor(const std::string &filename,
                       -(currentImageSet->getHeight() / 2));
     }
 
-    SimpleAnimation *currentCursor = new SimpleAnimation(anim);
+    auto *currentCursor = new SimpleAnimation(anim);
 
     targetCursorImages[type][size] = currentImageSet;
     targetCursor[type][size] = currentCursor;
diff --git a/src/actorsprite.h b/src/actorsprite.h
index ab327e16..f657d5cb 100644
--- a/src/actorsprite.h
+++ b/src/actorsprite.h
@@ -63,7 +63,7 @@ public:
 
     ActorSprite(int id);
 
-    ~ActorSprite();
+    ~ActorSprite() override;
 
     int getId() const
     { return mId; }
@@ -75,9 +75,9 @@ public:
      */
     virtual Type getType() const { return UNKNOWN; }
 
-    virtual int getDrawOrder() const;
+    int getDrawOrder() const override;
 
-    virtual bool draw(Graphics *graphics, int offsetX, int offsetY) const;
+    bool draw(Graphics *graphics, int offsetX, int offsetY) const override;
 
     virtual bool drawSpriteAt(Graphics *graphics, int x, int y) const;
 
@@ -85,7 +85,7 @@ public:
 
     static void actorLogic();
 
-    void setMap(Map* map);
+    void setMap(Map* map) override;
 
     /**
      * Gets the way the object blocks pathfinding for other objects
@@ -112,7 +112,7 @@ public:
     /**
      * Untargets the actor.
      */
-    void untarget() { mUsedTargetCursor = NULL; }
+    void untarget() { mUsedTargetCursor = nullptr; }
 
     /**
      * Triggers a visual effect, such as `level up'. Only draws the visual
@@ -146,16 +146,16 @@ public:
      */
     void setStatusEffectBlock(int offset, uint16_t flags);
 
-    virtual void setAlpha(float alpha)
+    void setAlpha(float alpha) override
     { CompoundSprite::setAlpha(alpha); }
 
-    virtual float getAlpha() const
+    float getAlpha() const override
     { return CompoundSprite::getAlpha(); }
 
-    virtual int getWidth() const
+    int getWidth() const override
     { return CompoundSprite::getWidth(); }
 
-    virtual int getHeight() const
+    int getHeight() const override
     { return CompoundSprite::getHeight(); }
 
     static void load();
diff --git a/src/actorspritemanager.cpp b/src/actorspritemanager.cpp
index 7da9fe10..88823d34 100644
--- a/src/actorspritemanager.cpp
+++ b/src/actorspritemanager.cpp
@@ -42,7 +42,7 @@ class FindBeingFunctor
             if (!game)
                 return false;
 
-            Being* b = static_cast<Being*>(actor);
+            auto* b = static_cast<Being*>(actor);
 
             uint16_t other_y = y + ((b->getType() == ActorSprite::NPC) ? 1 : 0);
             const Vector &pos = b->getPosition();
@@ -59,7 +59,7 @@ class FindBeingFunctor
 
 class PlayerNamesLister : public AutoCompleteLister
 {
-    void getAutoCompleteList(std::vector<std::string>& names) const
+    void getAutoCompleteList(std::vector<std::string>& names) const override
     {
         names.clear();
 
@@ -69,7 +69,7 @@ class PlayerNamesLister : public AutoCompleteLister
             if ((*it)->getType() == ActorSprite::FLOOR_ITEM)
                 continue;
 
-            Being *being = static_cast<Being*>(*it);
+            auto *being = static_cast<Being*>(*it);
             if (being->getType() == Being::PLAYER && being->getName() != "")
                 names.push_back(being->getName());
         }
@@ -78,7 +78,7 @@ class PlayerNamesLister : public AutoCompleteLister
 
 class PlayerNPCNamesLister : public AutoCompleteLister
 {
-    void getAutoCompleteList(std::vector<std::string>& names) const
+    void getAutoCompleteList(std::vector<std::string>& names) const override
     {
         names.clear();
 
@@ -88,7 +88,7 @@ class PlayerNPCNamesLister : public AutoCompleteLister
             if ((*it)->getType() == ActorSprite::FLOOR_ITEM)
                 continue;
 
-            Being *being = static_cast<Being*>(*it);
+            auto *being = static_cast<Being*>(*it);
             if ((being->getType() == Being::PLAYER
                  || being->getType() == Being::NPC)
                 && being->getName() != "")
@@ -124,7 +124,7 @@ void ActorSpriteManager::setPlayer(LocalPlayer *player)
 
 Being *ActorSpriteManager::createBeing(int id, ActorSprite::Type type, int subtype)
 {
-    Being *being = new Being(id, type, subtype, mMap);
+    auto *being = new Being(id, type, subtype, mMap);
 
     mActors.insert(being);
     return being;
@@ -132,7 +132,7 @@ Being *ActorSpriteManager::createBeing(int id, ActorSprite::Type type, int subty
 
 FloorItem *ActorSpriteManager::createItem(int id, int itemId, const Vector &pos)
 {
-    FloorItem *floorItem = new FloorItem(id, itemId, pos, mMap);
+    auto *floorItem = new FloorItem(id, itemId, pos, mMap);
 
     mActors.insert(floorItem);
     return floorItem;
@@ -163,7 +163,7 @@ Being *ActorSpriteManager::findBeing(int id) const
             return static_cast<Being*>(actor);
     }
 
-    return NULL;
+    return nullptr;
 }
 
 Being *ActorSpriteManager::findBeing(int x, int y, ActorSprite::Type type) const
@@ -172,21 +172,21 @@ Being *ActorSpriteManager::findBeing(int x, int y, ActorSprite::Type type) const
     beingFinder.y = y;
     beingFinder.type = type;
 
-    ActorSpritesConstIterator it = find_if(mActors.begin(), mActors.end(),
+    auto it = find_if(mActors.begin(), mActors.end(),
                                            beingFinder);
 
-    return (it == mActors.end()) ? NULL : static_cast<Being*>(*it);
+    return (it == mActors.end()) ? nullptr : static_cast<Being*>(*it);
 }
 
 Being *ActorSpriteManager::findBeingByPixel(int x, int y) const
 {
-    Map *map = Game::instance() ? Game::instance()->getCurrentMap() : 0;
+    Map *map = Game::instance() ? Game::instance()->getCurrentMap() : nullptr;
     if (!map)
-        return 0;
+        return nullptr;
 
     const int halfTileHeight = map->getTileHeight() / 2;
 
-    Being *closest = 0;
+    Being *closest = nullptr;
     int closestDist = 0;
 
     for_actors
@@ -194,7 +194,7 @@ Being *ActorSpriteManager::findBeingByPixel(int x, int y) const
         if ((*it)->getType() == ActorSprite::FLOOR_ITEM)
             continue;
 
-        Being *being = static_cast<Being*>(*it);
+        auto *being = static_cast<Being*>(*it);
 
         const int halfWidth = std::max(16, being->getWidth() / 2);
         const int height = std::max(32, being->getHeight());
@@ -233,12 +233,12 @@ FloorItem *ActorSpriteManager::findItem(int id) const
         }
     }
 
-    return NULL;
+    return nullptr;
 }
 
 FloorItem *ActorSpriteManager::findItem(int x, int y, int maxDist) const
 {
-    FloorItem *item = 0;
+    FloorItem *item = nullptr;
     int smallestDist = 0;
     for_actors
     {
@@ -263,12 +263,12 @@ Being *ActorSpriteManager::findBeingByName(const std::string &name,
         if ((*it)->getType() == ActorSprite::FLOOR_ITEM)
             continue;
 
-        Being *being = static_cast<Being*>(*it);
+        auto *being = static_cast<Being*>(*it);
         if (being->getName() == name &&
            (type == ActorSprite::UNKNOWN || type == being->getType()))
             return being;
     }
-    return NULL;
+    return nullptr;
 }
 
 const ActorSprites &ActorSpriteManager::getAll() const
@@ -312,9 +312,9 @@ Being *ActorSpriteManager::findNearestLivingBeing(int x, int y,
 {
     Game *game = Game::instance();
     if (!game)
-        return 0;
+        return nullptr;
 
-    Being *closestBeing = 0;
+    Being *closestBeing = nullptr;
     int dist = 0;
 
     const int maxDist = maxTileDist * game->getCurrentTileWidth();
@@ -324,7 +324,7 @@ Being *ActorSpriteManager::findNearestLivingBeing(int x, int y,
         if ((*it)->getType() == ActorSprite::FLOOR_ITEM)
             continue;
 
-        Being *being = static_cast<Being*>(*it);
+        auto *being = static_cast<Being*>(*it);
         const Vector &pos = being->getPosition();
         int d = abs(((int) pos.x) - x) + abs(((int) pos.y) - y);
 
@@ -338,7 +338,7 @@ Being *ActorSpriteManager::findNearestLivingBeing(int x, int y,
         }
     }
 
-    return (maxDist >= dist) ? closestBeing : 0;
+    return (maxDist >= dist) ? closestBeing : nullptr;
 }
 
 Being *ActorSpriteManager::findNearestLivingBeing(Being *aroundBeing,
@@ -378,7 +378,7 @@ void ActorSpriteManager::updatePlayerNames()
         if ((*it)->getType() == ActorSprite::FLOOR_ITEM)
             continue;
 
-        Being *being = static_cast<Being*>(*it);
+        auto *being = static_cast<Being*>(*it);
         if (being->getType() == ActorSprite::PLAYER && being->getName() != "")
             being->updateName();
     }
diff --git a/src/actorspritemanager.h b/src/actorspritemanager.h
index 76364ea5..de674a78 100644
--- a/src/actorspritemanager.h
+++ b/src/actorspritemanager.h
@@ -31,9 +31,9 @@
 class LocalPlayer;
 class Map;
 
-typedef std::set<ActorSprite*> ActorSprites;
-typedef ActorSprites::iterator ActorSpritesIterator;
-typedef ActorSprites::const_iterator ActorSpritesConstIterator;
+using ActorSprites = std::set<ActorSprite *>;
+using ActorSpritesIterator = ActorSprites::iterator;
+using ActorSpritesConstIterator = ActorSprites::const_iterator;
 
 class ActorSpriteManager
 {
@@ -115,7 +115,7 @@ class ActorSpriteManager
          */
         Being *findNearestLivingBeing(int x, int y, int maxTileDist,
                                       ActorSprite::Type type = Being::UNKNOWN,
-                                      Being *excluded = 0) const;
+                                      Being *excluded = nullptr) const;
 
         /**
          * Returns a being nearest to another being.
diff --git a/src/animatedsprite.cpp b/src/animatedsprite.cpp
index 54a11d87..a9138e36 100644
--- a/src/animatedsprite.cpp
+++ b/src/animatedsprite.cpp
@@ -36,9 +36,9 @@ AnimatedSprite::AnimatedSprite(SpriteDef *sprite):
     mFrameIndex(0),
     mFrameTime(0),
     mSprite(sprite),
-    mAction(0),
-    mAnimation(0),
-    mFrame(0)
+    mAction(nullptr),
+    mAnimation(nullptr),
+    mFrame(nullptr)
 {
     assert(mSprite);
 
@@ -56,8 +56,8 @@ AnimatedSprite *AnimatedSprite::load(const std::string &filename, int variant)
     ResourceManager *resman = ResourceManager::getInstance();
     SpriteDef *s = resman->getSprite(filename, variant);
     if (!s)
-        return NULL;
-    AnimatedSprite *as = new AnimatedSprite(s);
+        return nullptr;
+    auto *as = new AnimatedSprite(s);
     s->decRef();
     return as;
 }
@@ -145,8 +145,8 @@ bool AnimatedSprite::updateCurrentAnimation(unsigned int time)
 
         if (Animation::isTerminator(*mFrame))
         {
-            mAnimation = 0;
-            mFrame = 0;
+            mAnimation = nullptr;
+            mFrame = nullptr;
             return false;
         }
     }
@@ -229,5 +229,5 @@ int AnimatedSprite::getOffsetY() const
 
 const Image* AnimatedSprite::getImage() const
 {
-    return mFrame ? mFrame->image : 0;
+    return mFrame ? mFrame->image : nullptr;
 }
diff --git a/src/animatedsprite.h b/src/animatedsprite.h
index 32a63bf6..67d3f300 100644
--- a/src/animatedsprite.h
+++ b/src/animatedsprite.h
@@ -52,27 +52,27 @@ class AnimatedSprite : public Sprite
         static AnimatedSprite *load(const std::string &filename,
                                     int variant = 0);
 
-        virtual ~AnimatedSprite();
+        ~AnimatedSprite() override;
 
-        bool reset();
+        bool reset() override;
 
-        bool play(std::string action);
+        bool play(std::string action) override;
 
-        bool update(int time);
+        bool update(int time) override;
 
-        bool draw(Graphics* graphics, int posX, int posY) const;
+        bool draw(Graphics* graphics, int posX, int posY) const override;
 
-        int getWidth() const;
+        int getWidth() const override;
 
-        int getHeight() const;
+        int getHeight() const override;
 
-        int getOffsetX() const;
+        int getOffsetX() const override;
 
-        int getOffsetY() const;
+        int getOffsetY() const override;
 
-        const Image* getImage() const;
+        const Image* getImage() const override;
 
-        bool setDirection(SpriteDirection direction);
+        bool setDirection(SpriteDirection direction) override;
 
         int getNumberOfLayers()
         { return 1; }
@@ -80,7 +80,7 @@ class AnimatedSprite : public Sprite
         virtual bool drawnWhenBehind() const
         { return true; }
 
-        int getDuration() const;
+        int getDuration() const override;
 
     private:
         bool updateCurrentAnimation(unsigned int dt);
diff --git a/src/animationparticle.cpp b/src/animationparticle.cpp
index f7683ee6..1c79556f 100644
--- a/src/animationparticle.cpp
+++ b/src/animationparticle.cpp
@@ -25,14 +25,14 @@
 #include "simpleanimation.h"
 
 AnimationParticle::AnimationParticle(Map *map, Animation *animation):
-    ImageParticle(map, NULL),
+    ImageParticle(map, nullptr),
     mAnimation(new SimpleAnimation(animation))
 {
 }
 
 AnimationParticle::AnimationParticle(Map *map, xmlNodePtr animationNode,
                                      const std::string& dyePalettes):
-    ImageParticle(map, 0),
+    ImageParticle(map, nullptr),
     mAnimation(new SimpleAnimation(animationNode, dyePalettes))
 {
 }
@@ -40,7 +40,7 @@ AnimationParticle::AnimationParticle(Map *map, xmlNodePtr animationNode,
 AnimationParticle::~AnimationParticle()
 {
     delete mAnimation;
-    mImage = NULL;
+    mImage = nullptr;
 }
 
 bool AnimationParticle::update()
diff --git a/src/animationparticle.h b/src/animationparticle.h
index f1c8e353..16cc12a5 100644
--- a/src/animationparticle.h
+++ b/src/animationparticle.h
@@ -38,9 +38,9 @@ class AnimationParticle : public ImageParticle
         AnimationParticle(Map *map, xmlNodePtr animationNode,
                           const std::string& dyePalettes = std::string());
 
-        ~AnimationParticle();
+        ~AnimationParticle() override;
 
-        virtual bool update();
+        bool update() override;
 
     private:
         SimpleAnimation *mAnimation; /**< Used animation for this particle */
diff --git a/src/being.cpp b/src/being.cpp
index 21d48ed2..d6b36cc6 100644
--- a/src/being.cpp
+++ b/src/being.cpp
@@ -76,12 +76,12 @@ Being::Being(int id, Type type, int subtype, Map *map):
     mSubType(0xFFFF),
     mDirection(DOWN),
     mSpriteDirection(DIRECTION_DOWN),
-    mDispName(0),
+    mDispName(nullptr),
     mShowName(false),
-    mEquippedWeapon(NULL),
-    mText(0),
+    mEquippedWeapon(nullptr),
+    mText(nullptr),
     mGender(GENDER_UNSPECIFIED),
-    mParty(NULL),
+    mParty(nullptr),
     mIsGM(false),
     mType(type),
     mSpeedPixelsPerTick(Vector(0.0f, 0.0f, 0.0f)),
@@ -111,9 +111,9 @@ Being::~Being()
     delete mSpeechBubble;
     delete mDispName;
     delete mText;
-    mSpeechBubble = 0;
-    mDispName = 0;
-    mText = 0;
+    mSpeechBubble = nullptr;
+    mDispName = nullptr;
+    mText = nullptr;
 }
 
 void Being::setSubtype(Uint16 subtype)
@@ -391,7 +391,7 @@ void Being::takeDamage(Being *attacker, int amount,
         // Init the particle effect path based on current weapon or default.
         int hitEffectId = 0;
         const ItemInfo *attackerWeapon = attacker ?
-            attacker->getEquippedWeapon() : 0;
+            attacker->getEquippedWeapon() : nullptr;
 
         if (attackerWeapon && attacker->getType() == PLAYER)
         {
@@ -473,7 +473,7 @@ void Being::setShowName(bool doShowName)
     else
     {
         delete mDispName;
-        mDispName = 0;
+        mDispName = nullptr;
     }
 }
 
@@ -524,7 +524,7 @@ Guild *Being::getGuild(const std::string &guildName) const
         }
     }
 
-    return NULL;
+    return nullptr;
 }
 
 Guild *Being::getGuild(int id) const
@@ -536,7 +536,7 @@ Guild *Being::getGuild(int id) const
         return itr->second;
     }
 
-    return NULL;
+    return nullptr;
 }
 
 void Being::clearGuilds()
@@ -791,7 +791,7 @@ void Being::logic()
     if (mSpeechTime == 0 && mText)
     {
         delete mText;
-        mText = 0;
+        mText = nullptr;
     }
 
     if ((mAction != DEAD) && !mSpeedPixelsPerTick.isNull())
@@ -915,7 +915,7 @@ void Being::drawSpeech(int offsetX, int offsetY)
         if (mText)
         {
             delete mText;
-            mText = NULL;
+            mText = nullptr;
         }
 
         mSpeechBubble->setCaption(showName ? mName : "", mTextColor);
@@ -946,7 +946,7 @@ void Being::drawSpeech(int offsetX, int offsetY)
         if (mText)
             delete mText;
 
-        mText = NULL;
+        mText = nullptr;
     }
 }
 
@@ -971,10 +971,10 @@ void Being::flashName(int time)
 void Being::showName()
 {
     delete mDispName;
-    mDispName = 0;
+    mDispName = nullptr;
     std::string mDisplayName(mName);
 
-    Being* player =  static_cast<Being*>(this);
+    auto* player =  static_cast<Being*>(this);
     if (player)
     {
         if (config.getBoolValue("showgender"))
@@ -1001,7 +1001,7 @@ void Being::showName()
         }
     }
 
-    gcn::Font *font = 0;
+    gcn::Font *font = nullptr;
     if (local_player && local_player->getTarget() == this
         && getType() != MONSTER)
     {
@@ -1074,12 +1074,12 @@ void Being::setSprite(unsigned int slot, int id, const std::string &color,
         removeSprite(slot);
 
         if (isWeapon)
-            mEquippedWeapon = 0;
+            mEquippedWeapon = nullptr;
     }
     else
     {
         std::string filename = itemDb->get(id).getSprite(mGender);
-        AnimatedSprite *equipmentSprite = 0;
+        AnimatedSprite *equipmentSprite = nullptr;
 
         if (!filename.empty())
         {
diff --git a/src/being.h b/src/being.h
index 0287dc6e..5bf85a72 100644
--- a/src/being.h
+++ b/src/being.h
@@ -112,9 +112,9 @@ class Being : public ActorSprite, public EventListener
          */
         Being(int id, Type type, int subtype, Map *map);
 
-        virtual ~Being();
+        ~Being() override;
 
-        Type getType() const
+        Type getType() const override
         { return mType; }
 
         /**
@@ -136,13 +136,13 @@ class Being : public ActorSprite, public EventListener
         /**
          * Returns the tile x coord
          */
-        int getTileX() const
+        int getTileX() const override
         { return mPos.x / mMap->getTileWidth(); }
 
         /**
          * Returns the tile y coord
          */
-        int getTileY() const
+        int getTileY() const override
         { return mPos.y / mMap->getTileHeight(); }
 
         /**
@@ -248,7 +248,7 @@ class Being : public ActorSprite, public EventListener
         { return mGuilds.size(); }
 
         bool isInParty() const
-        { return mParty != NULL; }
+        { return mParty != nullptr; }
 
         void setParty(Party *party);
 
@@ -269,15 +269,15 @@ class Being : public ActorSprite, public EventListener
         /**
          * Get the number of layers used to draw the being
          */
-        int getNumberOfLayers() const;
+        int getNumberOfLayers() const override;
 
-        virtual bool drawnWhenBehind() const
+        bool drawnWhenBehind() const override
         { return CompoundSprite::drawnWhenBehind(); }
 
         /**
          * Performs being logic.
          */
-        virtual void logic();
+        void logic() override;
 
         /**
          * Draws the speech text above the being.
@@ -294,7 +294,7 @@ class Being : public ActorSprite, public EventListener
         const BeingInfo *getInfo() const
         { return mInfo; }
 
-        TargetCursorSize getTargetCursorSize() const;
+        TargetCursorSize getTargetCursorSize() const override;
 
         /**
          * Gets the way the object is blocked by other objects.
@@ -304,7 +304,7 @@ class Being : public ActorSprite, public EventListener
         /**
          * Gets the way the monster blocks pathfinding for other objects
          */
-        Map::BlockType getBlockType() const;
+        Map::BlockType getBlockType() const override;
 
         /**
          * Sets the move speed.
@@ -364,7 +364,7 @@ class Being : public ActorSprite, public EventListener
         SpriteDirection getSpriteDirection() const
         { return SpriteDirection(mSpriteDirection); }
 
-        void setPosition(const Vector &pos);
+        void setPosition(const Vector &pos) override;
 
         /**
          * Overloaded method provided for convenience.
@@ -434,9 +434,9 @@ class Being : public ActorSprite, public EventListener
 
         void talkTo();
 
-        void event(Event::Channel channel, const Event &event);
+        void event(Event::Channel channel, const Event &event) override;
 
-        void setMap(Map *map);
+        void setMap(Map *map) override;
 
         /**
          * Make the being look at a given pixel position.
diff --git a/src/channelmanager.cpp b/src/channelmanager.cpp
index 06d2215d..3e285889 100644
--- a/src/channelmanager.cpp
+++ b/src/channelmanager.cpp
@@ -37,8 +37,8 @@ ChannelManager::~ChannelManager()
 
 Channel *ChannelManager::findById(int id) const
 {
-    Channel *channel = 0;
-    for (std::list<Channel*>::const_iterator itr = mChannels.begin(),
+    Channel *channel = nullptr;
+    for (auto itr = mChannels.begin(),
                                              end = mChannels.end();
          itr != end;
          itr++)
@@ -55,10 +55,10 @@ Channel *ChannelManager::findById(int id) const
 
 Channel *ChannelManager::findByName(const std::string &name) const
 {
-    Channel *channel = 0;
+    Channel *channel = nullptr;
     if (!name.empty())
     {
-        for (std::list<Channel*>::const_iterator itr = mChannels.begin(),
+        for (auto itr = mChannels.begin(),
                                                  end = mChannels.end();
              itr != end;
              itr++)
diff --git a/src/client.cpp b/src/client.cpp
index 986b65fa..6bbba39b 100644
--- a/src/client.cpp
+++ b/src/client.cpp
@@ -175,19 +175,19 @@ bool isDoubleClick(int selected)
 }
 
 
-Client *Client::mInstance = 0;
+Client *Client::mInstance = nullptr;
 
 Client::Client(const Options &options):
     mOptions(options),
-    mGame(0),
-    mCurrentDialog(0),
-    mQuitDialog(0),
-    mDesktop(0),
-    mSetupButton(0),
+    mGame(nullptr),
+    mCurrentDialog(nullptr),
+    mQuitDialog(nullptr),
+    mDesktop(nullptr),
+    mSetupButton(nullptr),
     mState(STATE_CHOOSE_SERVER),
     mOldState(STATE_START),
     mStateAfterOkDialog(mState),
-    mIcon(0),
+    mIcon(nullptr),
     mLogicCounterId(0),
     mSecondsCounterId(0),
     mLimitFps(false)
@@ -419,8 +419,8 @@ Client::Client(const Options &options):
 
     // Initialize logic and seconds counters
     tick_time = 0;
-    mLogicCounterId = SDL_AddTimer(MILLISECONDS_IN_A_TICK, nextTick, NULL);
-    mSecondsCounterId = SDL_AddTimer(1000, nextSecond, NULL);
+    mLogicCounterId = SDL_AddTimer(MILLISECONDS_IN_A_TICK, nextTick, nullptr);
+    mSecondsCounterId = SDL_AddTimer(1000, nextSecond, nullptr);
 
     // Initialize frame limiting
     SDL_initFramerate(&mFpsManager);
@@ -470,7 +470,7 @@ Client::~Client()
 
     delete logger;
 
-    mInstance = 0;
+    mInstance = nullptr;
 }
 
 int Client::exec()
@@ -567,7 +567,7 @@ int Client::exec()
         else if (mOldState == STATE_START ||
                  (mOldState == STATE_GAME && mState != STATE_GAME))
         {
-            gcn::Container *top = static_cast<gcn::Container*>(gui->getTop());
+            auto *top = static_cast<gcn::Container*>(gui->getTop());
 
             mDesktop = new Desktop;
             top->add(mDesktop);
@@ -598,7 +598,7 @@ int Client::exec()
             if (mOldState == STATE_GAME)
             {
                 delete mGame;
-                mGame = 0;
+                mGame = nullptr;
             }
 
             mOldState = mState;
@@ -607,7 +607,7 @@ int Client::exec()
             if (mCurrentDialog)
             {
                 delete mCurrentDialog;
-                mCurrentDialog = NULL;
+                mCurrentDialog = nullptr;
             }
             // State has changed, while the quitDialog was active, it might
             // not be correct anymore
@@ -702,7 +702,7 @@ int Client::exec()
                             if (mOptions.chooseDefault)
                             {
                                 ((WorldSelectDialog*) mCurrentDialog)->action(
-                                    gcn::ActionEvent(NULL, "ok"));
+                                    gcn::ActionEvent(nullptr, "ok"));
                             }
                         }
                     }
@@ -766,7 +766,7 @@ int Client::exec()
                       break;
                       default:
                         // Nothing
-                        itemDb = 0;
+                        itemDb = nullptr;
                       break;
                     }
                     assert(itemDb);
@@ -846,10 +846,10 @@ int Client::exec()
 
                     delete mSetupButton;
                     delete mDesktop;
-                    mSetupButton = NULL;
-                    mDesktop = NULL;
+                    mSetupButton = nullptr;
+                    mDesktop = nullptr;
 
-                    mCurrentDialog = NULL;
+                    mCurrentDialog = nullptr;
 
                     logger->log("State: GAME");
                     mGame = new Game;
@@ -1010,7 +1010,7 @@ void Client::showOkDialog(const std::string &title,
                           const std::string &message,
                           State state)
 {
-    OkDialog *okDialog = new OkDialog(title, message);
+    auto *okDialog = new OkDialog(title, message);
     okDialog->addActionListener(this);
     mStateAfterOkDialog = state;
 }
@@ -1036,7 +1036,7 @@ void Client::event(Event::Channel channel, const Event &event)
 
 void Client::action(const gcn::ActionEvent &event)
 {
-    Window *window = 0;
+    Window *window = nullptr;
 
     if (event.getId() == "Setup")
         window = setupWindow;
@@ -1218,7 +1218,7 @@ void Client::initConfiguration()
 
     // Checking if the configuration file exists... otherwise create it with
     // default options.
-    FILE *configFile = 0;
+    FILE *configFile = nullptr;
     std::string configPath;
 
     configPath = mConfigDir + "/config.xml";
diff --git a/src/client.h b/src/client.h
index 28fd4445..fbfcabf8 100644
--- a/src/client.h
+++ b/src/client.h
@@ -159,7 +159,7 @@ public:
     };
 
     Client(const Options &options);
-    ~Client();
+    ~Client() override;
 
     /**
      * Provides access to the client instance.
@@ -200,8 +200,8 @@ public:
     static const std::string &getScreenshotDirectory()
     { return instance()->mScreenshotDir; }
 
-    void event(Event::Channel channel, const Event &event);
-    void action(const gcn::ActionEvent &event);
+    void event(Event::Channel channel, const Event &event) override;
+    void action(const gcn::ActionEvent &event) override;
 
     /**
      * Should be called after the window has been resized by the user.
diff --git a/src/compoundsprite.cpp b/src/compoundsprite.cpp
index 0f231535..982ea9fb 100644
--- a/src/compoundsprite.cpp
+++ b/src/compoundsprite.cpp
@@ -30,8 +30,8 @@
 #include <SDL.h>
 
 CompoundSprite::CompoundSprite():
-        mImage(NULL),
-        mAlphaImage(NULL),
+        mImage(nullptr),
+        mAlphaImage(nullptr),
         mWidth(0),
         mHeight(0),
         mOffsetX(0),
@@ -187,7 +187,7 @@ void CompoundSprite::removeSprite(int layer)
         return;
 
     delete mSprites.at(layer);
-    mSprites.at(layer) = NULL;
+    mSprites.at(layer) = nullptr;
     mNeedsRedraw = true;
 }
 
diff --git a/src/compoundsprite.h b/src/compoundsprite.h
index eed40231..e5b41973 100644
--- a/src/compoundsprite.h
+++ b/src/compoundsprite.h
@@ -32,43 +32,43 @@ class CompoundSprite : public Sprite
 public:
     CompoundSprite();
 
-    ~CompoundSprite();
+    ~CompoundSprite() override;
 
-    virtual bool reset();
+    bool reset() override;
 
-    virtual bool play(std::string action);
+    bool play(std::string action) override;
 
-    virtual bool update(int time);
+    bool update(int time) override;
 
-    virtual bool draw(Graphics *graphics, int posX, int posY) const;
+    bool draw(Graphics *graphics, int posX, int posY) const override;
 
     /**
      * Gets the width in pixels of the first sprite in the list.
      */
-    virtual int getWidth() const
+    int getWidth() const override
     { return mWidth; }
 
     /**
      * Gets the height in pixels of the first sprite in the list.
      */
-    virtual int getHeight() const
+    int getHeight() const override
     { return mHeight; }
 
-    int getOffsetX() const
+    int getOffsetX() const override
     { return mOffsetX; }
 
-    int getOffsetY() const
+    int getOffsetY() const override
     { return mOffsetY; }
 
-    virtual const Image *getImage() const;
+    const Image *getImage() const override;
 
-    virtual bool setDirection(SpriteDirection direction);
+    bool setDirection(SpriteDirection direction) override;
 
     int getNumberOfLayers() const;
 
     virtual bool drawnWhenBehind() const;
 
-    int getDuration() const;
+    int getDuration() const override;
 
     size_t size() const
     { return mSprites.size(); }
@@ -90,8 +90,8 @@ public:
     { mNeedsRedraw = true; }
 
 private:
-    typedef std::vector<Sprite*>::iterator SpriteIterator;
-    typedef std::vector<Sprite*>::const_iterator SpriteConstIterator;
+    using SpriteIterator = std::vector<Sprite *>::iterator;
+    using SpriteConstIterator = std::vector<Sprite *>::const_iterator;
 
     void redraw() const;
 
diff --git a/src/configuration.cpp b/src/configuration.cpp
index 0b1d9ae7..34febf22 100644
--- a/src/configuration.cpp
+++ b/src/configuration.cpp
@@ -46,27 +46,27 @@ void Configuration::setValue(const std::string &key, const std::string &value)
 std::string ConfigurationObject::getValue(const std::string &key,
                                           const std::string &deflt) const
 {
-    Options::const_iterator iter = mOptions.find(key);
+    auto iter = mOptions.find(key);
     return ((iter != mOptions.end()) ? iter->second : deflt);
 }
 
 int ConfigurationObject::getValue(const std::string &key, int deflt) const
 {
-    Options::const_iterator iter = mOptions.find(key);
+    auto iter = mOptions.find(key);
     return (iter != mOptions.end()) ? atoi(iter->second.c_str()) : deflt;
 }
 
 unsigned ConfigurationObject::getValue(const std::string &key,
                                        unsigned deflt) const
 {
-    Options::const_iterator iter = mOptions.find(key);
+    auto iter = mOptions.find(key);
     return (iter != mOptions.end()) ? atol(iter->second.c_str()) : deflt;
 }
 
 double ConfigurationObject::getValue(const std::string &key,
                                      double deflt) const
 {
-    Options::const_iterator iter = mOptions.find(key);
+    auto iter = mOptions.find(key);
     return (iter != mOptions.end()) ? atof(iter->second.c_str()) : deflt;
 }
 
@@ -108,7 +108,7 @@ void Configuration::cleanDefaults()
             delete iter->second;
         }
         delete mDefaultsData;
-        mDefaultsData = 0;
+        mDefaultsData = nullptr;
     }
 }
 
@@ -142,13 +142,13 @@ VariableData* Configuration::getDefault(const std::string &key,
                         mConfigPath.c_str(), key.c_str());
         }
     }
-    return NULL;
+    return nullptr;
 }
 
 int Configuration::getIntValue(const std::string &key) const
 {
     int defaultValue = 0;
-    Options::const_iterator iter = mOptions.find(key);
+    auto iter = mOptions.find(key);
     if (iter == mOptions.end())
     {
         VariableData* vd = getDefault(key, VariableData::DATA_INT);
@@ -165,7 +165,7 @@ int Configuration::getIntValue(const std::string &key) const
 std::string Configuration::getStringValue(const std::string &key) const
 {
     std::string defaultValue = "";
-    Options::const_iterator iter = mOptions.find(key);
+    auto iter = mOptions.find(key);
     if (iter == mOptions.end())
     {
         VariableData* vd = getDefault(key,
@@ -185,7 +185,7 @@ std::string Configuration::getStringValue(const std::string &key) const
 float Configuration::getFloatValue(const std::string &key) const
 {
     float defaultValue = 0.0f;
-    Options::const_iterator iter = mOptions.find(key);
+    auto iter = mOptions.find(key);
     if (iter == mOptions.end())
     {
         VariableData* vd = getDefault(key,
@@ -204,7 +204,7 @@ float Configuration::getFloatValue(const std::string &key) const
 bool Configuration::getBoolValue(const std::string &key) const
 {
     bool defaultValue = false;
-    Options::const_iterator iter = mOptions.find(key);
+    auto iter = mOptions.find(key);
     if (iter == mOptions.end())
     {
         VariableData* vd = getDefault(key,
@@ -237,7 +237,7 @@ void ConfigurationObject::initFromXML(xmlNodePtr parent_node)
                 if (xmlStrEqual(subnode->name, BAD_CAST name.c_str())
                     && subnode->type == XML_ELEMENT_NODE)
                 {
-                    ConfigurationObject *cobj = new ConfigurationObject;
+                    auto *cobj = new ConfigurationObject;
 
                     cobj->initFromXML(subnode); // Recurse
 
@@ -306,7 +306,7 @@ void ConfigurationObject::writeToXML(xmlTextWriterPtr writer)
         xmlTextWriterWriteAttribute(writer, BAD_CAST "name", BAD_CAST name);
 
         // Recurse on all elements
-        for (ConfigurationList::const_iterator
+        for (auto
              elt_it = it->second.begin(); elt_it != it->second.end(); elt_it++)
         {
             xmlTextWriterStartElement(writer, BAD_CAST name);
@@ -344,7 +344,7 @@ void Configuration::write()
     logger->log("Configuration::write() writing configuration...");
 
     xmlTextWriterSetIndent(writer, 1);
-    xmlTextWriterStartDocument(writer, NULL, NULL, NULL);
+    xmlTextWriterStartDocument(writer, nullptr, nullptr, nullptr);
     xmlTextWriterStartElement(writer, BAD_CAST "configuration");
 
     writeToXML(writer);
diff --git a/src/configuration.h b/src/configuration.h
index 16ee6236..49ea7c20 100644
--- a/src/configuration.h
+++ b/src/configuration.h
@@ -126,7 +126,7 @@ class ConfigurationObject
         void setList(const std::string &name, IT begin, IT end,
                      ConfigurationListManager<T, CONT> *manager)
         {
-            ConfigurationObject *nextobj = new ConfigurationObject;
+            auto *nextobj = new ConfigurationObject;
             deleteList(name);
             ConfigurationList *list = &(mContainerOptions[name]);
 
@@ -177,10 +177,10 @@ class ConfigurationObject
 
         void deleteList(const std::string &name);
 
-        typedef std::map<std::string, std::string> Options;
+        using Options = std::map<std::string, std::string>;
         Options mOptions;
 
-        typedef std::list<ConfigurationObject *> ConfigurationList;
+        using ConfigurationList = std::list<ConfigurationObject *>;
         std::map<std::string, ConfigurationList> mContainerOptions;
 };
 
@@ -192,9 +192,9 @@ class ConfigurationObject
 class Configuration : public ConfigurationObject
 {
     public:
-        Configuration() : mDefaultsData(0) {}
+        Configuration() : mDefaultsData(nullptr) {}
 
-        ~Configuration();
+        ~Configuration() override;
 
         /**
          * Reads config file and parse all options into memory.
@@ -216,7 +216,7 @@ class Configuration : public ConfigurationObject
          */
         void write();
 
-        void setValue(const std::string &key, const std::string &value);
+        void setValue(const std::string &key, const std::string &value) override;
 
         void setValue(const std::string &key, const char *value)
         { setValue(key, std::string(value)); }
diff --git a/src/defaults.cpp b/src/defaults.cpp
index 2cd81cd2..99b9d6a0 100644
--- a/src/defaults.cpp
+++ b/src/defaults.cpp
@@ -63,7 +63,7 @@ VariableData* createData(bool defData)
 
 DefaultsData* getConfigDefaults()
 {
-    DefaultsData* configData = new DefaultsData;
+    auto* configData = new DefaultsData;
     // Init main config defaults
     AddDEF(configData, "OverlayDetail", 2);
     AddDEF(configData, "speechBubblecolor", "000000");
@@ -125,7 +125,7 @@ DefaultsData* getConfigDefaults()
 
 DefaultsData* getBrandingDefaults()
 {
-    DefaultsData* brandingData = new DefaultsData;
+    auto* brandingData = new DefaultsData;
     // Init config defaults
     AddDEF(brandingData, "wallpapersPath", "");
     AddDEF(brandingData, "wallpaperFile", "");
@@ -150,7 +150,7 @@ DefaultsData* getBrandingDefaults()
 
 DefaultsData* getPathsDefaults()
 {
-    DefaultsData *pathsData = new DefaultsData;
+    auto *pathsData = new DefaultsData;
     // Init paths.xml defaults
     AddDEF(pathsData, "itemIcons", "graphics/items/");
     AddDEF(pathsData, "unknownItemFile", "unknown-item.png");
diff --git a/src/defaults.h b/src/defaults.h
index c2372df1..a9532459 100644
--- a/src/defaults.h
+++ b/src/defaults.h
@@ -25,7 +25,7 @@
 #include <string>
 #include "variabledata.h"
 
-typedef std::map<std::string, VariableData*> DefaultsData;
+using DefaultsData = std::map<std::string, VariableData *>;
 
 DefaultsData* getConfigDefaults();
 DefaultsData* getBrandingDefaults();
diff --git a/src/effectmanager.cpp b/src/effectmanager.cpp
index b842245c..4fd7d7e6 100644
--- a/src/effectmanager.cpp
+++ b/src/effectmanager.cpp
@@ -67,7 +67,7 @@ EffectManager::~EffectManager()
 bool EffectManager::trigger(int id, Being* being, int rotation)
 {
     bool rValue = false;
-    for (std::list<EffectDescription>::iterator i = mEffects.begin(); i != mEffects.end(); ++i)
+    for (auto i = mEffects.begin(); i != mEffects.end(); ++i)
     {
         if ((*i).id == id)
         {
@@ -89,7 +89,7 @@ bool EffectManager::trigger(int id, Being* being, int rotation)
 bool EffectManager::trigger(int id, int x, int y, int rotation)
 {
     bool rValue = false;
-    for (std::list<EffectDescription>::iterator i = mEffects.begin(); i != mEffects.end(); ++i)
+    for (auto i = mEffects.begin(); i != mEffects.end(); ++i)
     {
         if ((*i).id == id)
         {
diff --git a/src/equipment.h b/src/equipment.h
index 00f9d410..71a15734 100644
--- a/src/equipment.h
+++ b/src/equipment.h
@@ -29,9 +29,9 @@ class Item;
 class Equipment
 {
     public:
-        Equipment(): mBackend(0) {}
+        Equipment(): mBackend(nullptr) {}
 
-        ~Equipment() { mBackend = 0; }
+        ~Equipment() { mBackend = nullptr; }
 
         class Backend {
             public:
@@ -52,7 +52,7 @@ class Equipment
          * Get equipment at the given slot.
          */
         Item *getEquipment(int slotIndex) const
-        { return mBackend ? mBackend->getEquipment(slotIndex) : 0; }
+        { return mBackend ? mBackend->getEquipment(slotIndex) : nullptr; }
 
         const std::string getSlotName(int slotIndex) const
         { return mBackend ? mBackend->getSlotName(slotIndex) : std::string(); }
diff --git a/src/event.cpp b/src/event.cpp
index 73099cc3..aba2996f 100644
--- a/src/event.cpp
+++ b/src/event.cpp
@@ -27,7 +27,7 @@ Event::ListenMap Event::mBindings;
 
 Event::~Event()
 {
-    VariableMap::iterator it = mData.begin();
+    auto it = mData.begin();
     while (it != mData.end())
     {
         delete it->second;
@@ -47,7 +47,7 @@ void Event::setInt(const std::string &key, int value)
 
 int Event::getInt(const std::string &key) const
 {
-    VariableMap::const_iterator it = mData.find(key);
+    auto it = mData.find(key);
     if (it == mData.end())
         throw BAD_KEY;
 
@@ -59,7 +59,7 @@ int Event::getInt(const std::string &key) const
 
 bool Event::hasInt(const std::string &key) const
 {
-    VariableMap::const_iterator it = mData.find(key);
+    auto it = mData.find(key);
     return !(it == mData.end()
              || it->second->getType() != VariableData::DATA_INT);
 }
@@ -76,7 +76,7 @@ void Event::setString(const std::string &key, const std::string &value)
 
 const std::string &Event::getString(const std::string &key) const
 {
-    VariableMap::const_iterator it = mData.find(key);
+    auto it = mData.find(key);
     if (it == mData.end())
         throw BAD_KEY;
 
@@ -89,7 +89,7 @@ const std::string &Event::getString(const std::string &key) const
 
 bool Event::hasString(const std::string &key) const
 {
-    VariableMap::const_iterator it = mData.find(key);
+    auto it = mData.find(key);
     return !(it == mData.end()
              || it->second->getType() != VariableData::DATA_STRING);
 }
@@ -106,7 +106,7 @@ void Event::setFloat(const std::string &key, double value)
 
 double Event::getFloat(const std::string &key) const
 {
-    VariableMap::const_iterator it = mData.find(key);
+    auto it = mData.find(key);
     if (it == mData.end())
         throw BAD_KEY;
 
@@ -118,7 +118,7 @@ double Event::getFloat(const std::string &key) const
 
 bool Event::hasFloat(const std::string &key) const
 {
-    VariableMap::const_iterator it = mData.find(key);
+    auto it = mData.find(key);
     return !(it == mData.end()
              || it->second->getType() != VariableData::DATA_FLOAT);
 }
@@ -135,7 +135,7 @@ void Event::setBool(const std::string &key, bool value)
 
 bool Event::getBool(const std::string &key) const
 {
-    VariableMap::const_iterator it = mData.find(key);
+    auto it = mData.find(key);
     if (it == mData.end())
         throw BAD_KEY;
 
@@ -147,7 +147,7 @@ bool Event::getBool(const std::string &key) const
 
 bool Event::hasBool(const std::string &key) const
 {
-    VariableMap::const_iterator it = mData.find(key);
+    auto it = mData.find(key);
     return !(it == mData.end()
              || it->second->getType() != VariableData::DATA_BOOL);
 }
@@ -164,7 +164,7 @@ void Event::setItem(const std::string &key, Item *value)
 
 Item *Event::getItem(const std::string &key) const
 {
-    VariableMap::const_iterator it = mData.find(key);
+    auto it = mData.find(key);
     if (it == mData.end())
         throw BAD_KEY;
 
@@ -176,7 +176,7 @@ Item *Event::getItem(const std::string &key) const
 
 bool Event::hasItem(const std::string &key) const
 {
-    VariableMap::const_iterator it = mData.find(key);
+    auto it = mData.find(key);
     return !(it == mData.end()
              || it->second->getType() != VariableData::DATA_ITEM);
 }
@@ -193,7 +193,7 @@ void Event::setActor(const std::string &key, ActorSprite *value)
 
 ActorSprite *Event::getActor(const std::string &key) const
 {
-    VariableMap::const_iterator it = mData.find(key);
+    auto it = mData.find(key);
     if (it == mData.end())
         throw BAD_KEY;
 
@@ -205,7 +205,7 @@ ActorSprite *Event::getActor(const std::string &key) const
 
 bool Event::hasActor(const std::string &key) const
 {
-    VariableMap::const_iterator it = mData.find(key);
+    auto it = mData.find(key);
     return !(it == mData.end()
              || it->second->getType() != VariableData::DATA_ACTOR);
 }
@@ -214,14 +214,14 @@ bool Event::hasActor(const std::string &key) const
 
 void Event::trigger(Channel channel, const Event &event)
 {
-    ListenMap::iterator it = mBindings.find(channel);
+    auto it = mBindings.find(channel);
 
     // Make sure something is listening
     if (it == mBindings.end())
         return;
 
     // Loop though all listeners
-    ListenerSet::iterator lit = it->second.begin();
+    auto lit = it->second.begin();
     while (lit != it->second.end())
     {
         (*lit)->event(channel, event);
@@ -241,7 +241,7 @@ void Event::unbind(EventListener *listener, Channel channel)
 
 void Event::remove(EventListener *listener)
 {
-    ListenMap::iterator it = mBindings.begin();
+    auto it = mBindings.begin();
     while (it != mBindings.end())
     {
         it->second.erase(listener);
diff --git a/src/event.h b/src/event.h
index b785b16f..d20f172f 100644
--- a/src/event.h
+++ b/src/event.h
@@ -37,9 +37,9 @@ enum BadEvent {
 
 class EventListener;
 
-typedef std::set<EventListener *> ListenerSet;
+using ListenerSet = std::set<EventListener *>;
 class VariableData;
-typedef std::map<std::string, VariableData *> VariableMap;
+using VariableMap = std::map<std::string, VariableData *>;
 
 class Event
 {
@@ -315,7 +315,7 @@ protected:
     static void remove(EventListener *listener);
 
 private:
-    typedef std::map<Channel, ListenerSet > ListenMap;
+    using ListenMap = std::map<Channel, ListenerSet>;
     static ListenMap mBindings;
 
     Type mType;
diff --git a/src/flooritem.h b/src/flooritem.h
index b4feecb5..8326982f 100644
--- a/src/flooritem.h
+++ b/src/flooritem.h
@@ -45,7 +45,7 @@ class FloorItem : public ActorSprite
                   const Vector &position,
                   Map *map);
 
-        Type getType() const { return FLOOR_ITEM; }
+        Type getType() const override { return FLOOR_ITEM; }
 
         /**
          * Returns the item ID.
@@ -59,10 +59,10 @@ class FloorItem : public ActorSprite
          */
         const ItemInfo &getInfo() const;
 
-        virtual int getTileX() const
+        int getTileX() const override
         { return mX; }
 
-        virtual int getTileY() const
+        int getTileY() const override
         { return mY; }
 
     private:
diff --git a/src/game.cpp b/src/game.cpp
index c934ed69..49f33db0 100644
--- a/src/game.cpp
+++ b/src/game.cpp
@@ -88,11 +88,11 @@
 #include <sstream>
 #include <string>
 
-Joystick *joystick = NULL;
+Joystick *joystick = nullptr;
 
-OkDialog *weightNotice = NULL;
-OkDialog *deathNotice = NULL;
-QuitDialog *quitDialog = NULL;
+OkDialog *weightNotice = nullptr;
+OkDialog *deathNotice = nullptr;
+QuitDialog *quitDialog = nullptr;
 
 ChatWindow *chatWindow;
 StatusWindow *statusWindow;
@@ -110,14 +110,14 @@ OutfitWindow *outfitWindow;
 SpecialsWindow *specialsWindow;
 SocialWindow *socialWindow;
 
-ActorSpriteManager *actorSpriteManager = NULL;
-ChannelManager *channelManager = NULL;
-CommandHandler *commandHandler = NULL;
-Particle *particleEngine = NULL;
-EffectManager *effectManager = NULL;
-Viewport *viewport = NULL;                    /**< Viewport on the map. */
+ActorSpriteManager *actorSpriteManager = nullptr;
+ChannelManager *channelManager = nullptr;
+CommandHandler *commandHandler = nullptr;
+Particle *particleEngine = nullptr;
+EffectManager *effectManager = nullptr;
+Viewport *viewport = nullptr;                    /**< Viewport on the map. */
 
-ChatTab *localChatTab = NULL;
+ChatTab *localChatTab = nullptr;
 
 /**
  * Initialize every game sub-engines in the right order
@@ -131,7 +131,7 @@ static void initEngines()
     channelManager = new ChannelManager;
     effectManager = new EffectManager;
 
-    particleEngine = new Particle(NULL);
+    particleEngine = new Particle(nullptr);
     particleEngine->setupEngine();
 
     Event::trigger(Event::GameChannel, Event::EnginesInitialized);
@@ -203,12 +203,12 @@ static void destroyGuiWindows()
     Event::trigger(Event::GameChannel, Event::GuiWindowsUnloaded);
 }
 
-Game *Game::mInstance = 0;
+Game *Game::mInstance = nullptr;
 
 Game::Game():
     mLastTarget(ActorSprite::UNKNOWN),
     mDisconnected(false),
-    mCurrentMap(0)
+    mCurrentMap(nullptr)
 {
     assert(!mInstance);
     mInstance = this;
@@ -217,7 +217,7 @@ Game::Game():
     viewport = new Viewport;
     viewport->setSize(graphics->getWidth(), graphics->getHeight());
 
-    gcn::Container *top = static_cast<gcn::Container*>(gui->getTop());
+    auto *top = static_cast<gcn::Container*>(gui->getTop());
     top->add(viewport);
     viewport->requestMoveToBottom();
 
@@ -260,7 +260,7 @@ Game::~Game()
     del_0(viewport)
     del_0(mCurrentMap)
 
-    mInstance = 0;
+    mInstance = nullptr;
 
     Event::trigger(Event::GameChannel, Event::Destructed);
 }
@@ -347,7 +347,7 @@ void Game::logic()
     if (mCurrentMap)
         mCurrentMap->update();
 
-    cur_time = time(NULL);
+    cur_time = time(nullptr);
 
     // Handle network stuff
     if (!Net::getGameHandler()->isConnected() && !mDisconnected)
@@ -404,7 +404,7 @@ void Game::handleInput()
         // Keyboard events (for discontinuous keys)
         else if (event.type == SDL_KEYDOWN)
         {
-            gcn::Window *requestedWindow = NULL;
+            gcn::Window *requestedWindow = nullptr;
 
             if (setupWindow->isVisible() &&
                 keyboard.getNewKeyIndex() > keyboard.KEY_NO_VALUE)
@@ -456,9 +456,9 @@ void Game::handleInput()
                         helpWindow->setVisible(false);
                     // Close the config window, cancelling changes if opened
                     else if (setupWindow->isVisible())
-                        setupWindow->action(gcn::ActionEvent(NULL, "cancel"));
+                        setupWindow->action(gcn::ActionEvent(nullptr, "cancel"));
                     else if (dialog)
-                        dialog->action(gcn::ActionEvent(NULL, "ok"));
+                        dialog->action(gcn::ActionEvent(nullptr, "ok"));
                 }
                 if (keyboard.isKeyActive(keyboard.KEY_TOGGLE_CHAT))
                 {
@@ -914,7 +914,7 @@ void Game::changeMap(const std::string &mapPath)
     // Unset the map of the player so that its particles are cleared before
     // being deleted in the next step
     if (local_player)
-        local_player->setMap(0);
+        local_player->setMap(nullptr);
 
     particleEngine->clear();
 
diff --git a/src/graphics.cpp b/src/graphics.cpp
index b4c65b0a..b3f3050e 100644
--- a/src/graphics.cpp
+++ b/src/graphics.cpp
@@ -310,7 +310,7 @@ SDL_Surface *Graphics::getScreenshot()
 
     SDL_Surface *screenshot = SDL_CreateRGBSurface(0, mWidth,
             mHeight, 24, rmask, gmask, bmask, amask);
-    SDL_RenderReadPixels(mRenderer, NULL, SDL_PIXELFORMAT_RGB888, screenshot->pixels, screenshot->pitch);
+    SDL_RenderReadPixels(mRenderer, nullptr, SDL_PIXELFORMAT_RGB888, screenshot->pixels, screenshot->pitch);
 
     return screenshot;
 }
@@ -332,7 +332,7 @@ void Graphics::updateSDLClipRect()
 {
     if (mClipStack.empty())
     {
-        SDL_RenderSetClipRect(mRenderer, NULL);
+        SDL_RenderSetClipRect(mRenderer, nullptr);
         return;
     }
 
diff --git a/src/graphics.h b/src/graphics.h
index 813d4200..6239bd23 100644
--- a/src/graphics.h
+++ b/src/graphics.h
@@ -77,7 +77,7 @@ class Graphics : public gcn::Graphics
     public:
         Graphics() = default;
 
-        virtual ~Graphics();
+        ~Graphics() override;
 
         /**
          * Sets the target SDL_Window to draw to. This funtion also pushes a
@@ -214,32 +214,32 @@ class Graphics : public gcn::Graphics
 
         gcn::Font *getFont() const { return mFont; }
 
-        virtual bool pushClipArea(gcn::Rectangle area);
+        bool pushClipArea(gcn::Rectangle area) override;
 
-        virtual void popClipArea();
+        void popClipArea() override;
 
-        virtual void drawImage(const gcn::Image *image,
+        void drawImage(const gcn::Image *image,
                                int srcX,
                                int srcY,
                                int dstX,
                                int dstY,
                                int width,
-                               int height) {}   // not used
+                               int height) override {}   // not used
 
-        virtual void drawPoint(int x, int y);
+        void drawPoint(int x, int y) override;
 
-        virtual void drawLine(int x1, int y1, int x2, int y2);
+        void drawLine(int x1, int y1, int x2, int y2) override;
 
-        virtual void drawRectangle(const gcn::Rectangle &rectangle);
+        void drawRectangle(const gcn::Rectangle &rectangle) override;
 
-        virtual void fillRectangle(const gcn::Rectangle &rectangle);
+        void fillRectangle(const gcn::Rectangle &rectangle) override;
 
-        virtual void setColor(const gcn::Color &color)
+        void setColor(const gcn::Color &color) override
         {
             mColor = color;
         }
 
-        virtual const gcn::Color &getColor() const
+        const gcn::Color &getColor() const override
         {
             return mColor;
         }
diff --git a/src/gui/beingpopup.h b/src/gui/beingpopup.h
index 7022ebbe..45169464 100644
--- a/src/gui/beingpopup.h
+++ b/src/gui/beingpopup.h
@@ -34,7 +34,7 @@ class BeingPopup : public Popup
     public:
         BeingPopup();
 
-        ~BeingPopup();
+        ~BeingPopup() override;
 
         /**
          * Sets the info to be displayed given a particular player.
diff --git a/src/gui/buydialog.cpp b/src/gui/buydialog.cpp
index e1f99f5a..56c3c261 100644
--- a/src/gui/buydialog.cpp
+++ b/src/gui/buydialog.cpp
@@ -295,8 +295,8 @@ void BuyDialog::setVisible(bool visible)
 
 void BuyDialog::closeAll()
 {
-    DialogList::iterator it = instances.begin();
-    DialogList::iterator it_end = instances.end();
+    auto it = instances.begin();
+    auto it_end = instances.end();
 
     for (; it != it_end; it++)
     {
diff --git a/src/gui/buydialog.h b/src/gui/buydialog.h
index 7dd00019..b1126225 100644
--- a/src/gui/buydialog.h
+++ b/src/gui/buydialog.h
@@ -44,7 +44,7 @@ class BuyDialog : public Window, public gcn::ActionListener,
     public:
         BuyDialog(int npcId);
 
-        ~BuyDialog();
+        ~BuyDialog() override;
 
         /**
          * Resets the dialog, clearing shop inventory.
@@ -64,7 +64,7 @@ class BuyDialog : public Window, public gcn::ActionListener,
         /**
          * Called when receiving actions from the widgets.
          */
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
         /**
          * Returns the number of items in the shop inventory.
@@ -74,12 +74,12 @@ class BuyDialog : public Window, public gcn::ActionListener,
         /**
          * Updates the labels according to the selected item.
          */
-        void valueChanged(const gcn::SelectionEvent &event);
+        void valueChanged(const gcn::SelectionEvent &event) override;
 
         /**
          * Allows for quick-buying by extending double-click events.
          */
-        void mouseClicked(gcn::MouseEvent &mouseEvent);
+        void mouseClicked(gcn::MouseEvent &mouseEvent) override;
 
         /**
          * Returns the name of item number i in the shop inventory.
@@ -94,7 +94,7 @@ class BuyDialog : public Window, public gcn::ActionListener,
         /**
          * Sets the visibility of this window.
          */
-        void setVisible(bool visible);
+        void setVisible(bool visible) override;
 
         /**
          * Closes all instances.
@@ -102,7 +102,7 @@ class BuyDialog : public Window, public gcn::ActionListener,
         static void closeAll();
 
     private:
-        typedef std::list<BuyDialog*> DialogList;
+        using DialogList = std::list<BuyDialog *>;
         static DialogList instances;
 
         int mNpcId;
diff --git a/src/gui/buyselldialog.cpp b/src/gui/buyselldialog.cpp
index e22607f0..be49ba58 100644
--- a/src/gui/buyselldialog.cpp
+++ b/src/gui/buyselldialog.cpp
@@ -37,20 +37,20 @@ BuySellDialog::DialogList BuySellDialog::instances;
 BuySellDialog::BuySellDialog(int npcId):
     Window(_("Shop")),
     mNpcId(npcId),
-    mBuyButton(0)
+    mBuyButton(nullptr)
 {
     setWindowName("BuySell");
     //setupWindow->registerWindowForReset(this);
     setCloseButton(true);
 
     static const char *buttonNames[] = {
-        N_("Buy"), N_("Sell"), N_("Cancel"), 0
+        N_("Buy"), N_("Sell"), N_("Cancel"), nullptr
     };
     int x = 10, y = 10;
 
     for (const char **curBtn = buttonNames; *curBtn; curBtn++)
     {
-        Button *btn = new Button(gettext(*curBtn), *curBtn, this);
+        auto *btn = new Button(gettext(*curBtn), *curBtn, this);
         if (!mBuyButton)
             mBuyButton = btn; // For focus request
         btn->setPosition(x, y);
@@ -109,8 +109,8 @@ void BuySellDialog::action(const gcn::ActionEvent &event)
 
 void BuySellDialog::closeAll()
 {
-    DialogList::iterator it = instances.begin();
-    DialogList::iterator it_end = instances.end();
+    auto it = instances.begin();
+    auto it_end = instances.end();
 
     for (; it != it_end; it++)
     {
diff --git a/src/gui/buyselldialog.h b/src/gui/buyselldialog.h
index f296126e..2e324d42 100644
--- a/src/gui/buyselldialog.h
+++ b/src/gui/buyselldialog.h
@@ -42,14 +42,14 @@ class BuySellDialog : public Window, public gcn::ActionListener
          */
         BuySellDialog(int npcId);
 
-        ~BuySellDialog();
+        ~BuySellDialog() override;
 
-        void setVisible(bool visible);
+        void setVisible(bool visible) override;
 
         /**
          * Called when receiving actions from the widgets.
          */
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
         /**
          * Closes all instances.
@@ -57,7 +57,7 @@ class BuySellDialog : public Window, public gcn::ActionListener
         static void closeAll();
 
     private:
-        typedef std::list<BuySellDialog*> DialogList;
+        using DialogList = std::list<BuySellDialog *>;
         static DialogList instances;
 
         int mNpcId;
diff --git a/src/gui/changeemaildialog.cpp b/src/gui/changeemaildialog.cpp
index c42cecc3..ce83087b 100644
--- a/src/gui/changeemaildialog.cpp
+++ b/src/gui/changeemaildialog.cpp
@@ -153,7 +153,7 @@ void ChangeEmailDialog::action(const gcn::ActionEvent &event)
                 mWrongDataNoticeListener->setTarget(this->mSecondEmailField);
             }
 
-            OkDialog *dlg = new OkDialog(_("Error"), errorMessage.str());
+            auto *dlg = new OkDialog(_("Error"), errorMessage.str());
             dlg->addActionListener(mWrongDataNoticeListener);
         }
         else
diff --git a/src/gui/changeemaildialog.h b/src/gui/changeemaildialog.h
index 7715db8c..37d3ce01 100644
--- a/src/gui/changeemaildialog.h
+++ b/src/gui/changeemaildialog.h
@@ -40,12 +40,12 @@ class ChangeEmailDialog : public Window, public gcn::ActionListener
     public:
         ChangeEmailDialog(LoginData *loginData);
 
-        ~ChangeEmailDialog();
+        ~ChangeEmailDialog() override;
 
         /**
          * Called when receiving actions from the widgets.
          */
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
         /**
          * This is used to pass the pointer to where the new email should be
diff --git a/src/gui/changepassworddialog.cpp b/src/gui/changepassworddialog.cpp
index 6b668496..437a8c90 100644
--- a/src/gui/changepassworddialog.cpp
+++ b/src/gui/changepassworddialog.cpp
@@ -146,7 +146,7 @@ void ChangePasswordDialog::action(const gcn::ActionEvent &event)
                 mWrongDataNoticeListener->setTarget(this->mSecondPassField);
             }
 
-            OkDialog *dlg = new OkDialog(_("Error"), errorMessage.str());
+            auto *dlg = new OkDialog(_("Error"), errorMessage.str());
             dlg->addActionListener(mWrongDataNoticeListener);
         }
         else
diff --git a/src/gui/changepassworddialog.h b/src/gui/changepassworddialog.h
index 308a6970..22d449d1 100644
--- a/src/gui/changepassworddialog.h
+++ b/src/gui/changepassworddialog.h
@@ -40,12 +40,12 @@ class ChangePasswordDialog : public Window, public gcn::ActionListener
     public:
         ChangePasswordDialog(LoginData *loginData);
 
-        ~ChangePasswordDialog();
+        ~ChangePasswordDialog() override;
 
         /**
          * Called when receiving actions from the widgets.
          */
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
     private:
         gcn::TextField *mOldPassField;
diff --git a/src/gui/charcreatedialog.cpp b/src/gui/charcreatedialog.cpp
index 26383d48..8cec4279 100644
--- a/src/gui/charcreatedialog.cpp
+++ b/src/gui/charcreatedialog.cpp
@@ -54,7 +54,7 @@ CharCreateDialog::CharCreateDialog(CharSelectDialog *parent, int slot):
     mCharSelectDialog(parent),
     mSlot(slot)
 {
-    mPlayer = new Being(0, ActorSprite::PLAYER, 0, NULL);
+    mPlayer = new Being(0, ActorSprite::PLAYER, 0, nullptr);
     mPlayer->setGender(GENDER_MALE);
 
     const std::vector<int> &items = CharDB::getDefaultItems();
@@ -160,7 +160,7 @@ CharCreateDialog::~CharCreateDialog()
     delete mPlayer;
 
     // Make sure the char server handler knows that we're gone
-    Net::getCharHandler()->setCharCreateDialog(0);
+    Net::getCharHandler()->setCharCreateDialog(nullptr);
 }
 
 void CharCreateDialog::action(const gcn::ActionEvent &event)
@@ -330,18 +330,18 @@ void CharCreateDialog::setAttributes(const std::vector<std::string> &labels,
         {
             const int y = 140 + i * 20;
 
-            Label *attributeLabel = new Label(labels[i]);
+            auto *attributeLabel = new Label(labels[i]);
             attributeLabel->setWidth(70);
             attributeLabel->setPosition(5, y);
             add(attributeLabel);
 
-            Slider *attributeSlider = new Slider(min, max);
+            auto *attributeSlider = new Slider(min, max);
             attributeSlider->setDimension(gcn::Rectangle(75, y, 100, 10));
             attributeSlider->setActionEventId("statslider");
             attributeSlider->addActionListener(this);
             add(attributeSlider);
 
-            Label *attributeValue = new Label(toString(min));
+            auto *attributeValue = new Label(toString(min));
             attributeValue->setPosition(180, y);
             add(attributeValue);
 
diff --git a/src/gui/charcreatedialog.h b/src/gui/charcreatedialog.h
index 9f49f6c5..89706b54 100644
--- a/src/gui/charcreatedialog.h
+++ b/src/gui/charcreatedialog.h
@@ -48,9 +48,9 @@ class CharCreateDialog : public Window, public gcn::ActionListener
     public:
         CharCreateDialog(CharSelectDialog *parent, int slot);
 
-        ~CharCreateDialog();
+        ~CharCreateDialog() override;
 
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
         /**
          * Unlocks the dialog, enabling the create character button again.
diff --git a/src/gui/charselectdialog.cpp b/src/gui/charselectdialog.cpp
index dff648ec..e4d5f371 100644
--- a/src/gui/charselectdialog.cpp
+++ b/src/gui/charselectdialog.cpp
@@ -74,7 +74,7 @@ class CharDeleteConfirm : public ConfirmDialog
         {
         }
 
-        void action(const gcn::ActionEvent &event)
+        void action(const gcn::ActionEvent &event) override
         {
             if (event.getId() == "yes")
                 mMaster->attemptCharacterDelete(mIndex);
@@ -97,7 +97,7 @@ class CharacterDisplay : public Container
         Net::Character *getCharacter() const
         { return mCharacter; }
 
-        void requestFocus();
+        void requestFocus() override;
 
         void setActive(bool active);
 
@@ -117,8 +117,8 @@ class CharacterDisplay : public Container
 CharSelectDialog::CharSelectDialog(LoginData *loginData):
     Window(_("Account and Character Management")),
     mLocked(false),
-    mUnregisterButton(0),
-    mChangeEmailButton(0),
+    mUnregisterButton(nullptr),
+    mChangeEmailButton(nullptr),
     mCharacterEntries(0),
     mLoginData(loginData),
     mCharHandler(Net::getCharHandler())
@@ -203,7 +203,7 @@ void CharSelectDialog::action(const gcn::ActionEvent &event)
                  && !mCharacterEntries[selected]->getCharacter())
         {
             // Start new character dialog
-            CharCreateDialog *charCreateDialog =
+            auto *charCreateDialog =
                     new CharCreateDialog(this, selected);
             mCharHandler->setCharCreateDialog(charCreateDialog);
         }
@@ -273,7 +273,7 @@ void CharSelectDialog::setCharacters(const Net::Characters &characters)
     std::vector<CharacterDisplay*>::iterator iter, iter_end;
     for (iter = mCharacterEntries.begin(), iter_end = mCharacterEntries.end();
          iter != iter_end; ++iter)
-        (*iter)->setCharacter(0);
+        (*iter)->setCharacter(nullptr);
 
     Net::Characters::const_iterator i, i_end = characters.end();
     for (i = characters.begin(); i != i_end; ++i)
@@ -347,7 +347,7 @@ bool CharSelectDialog::selectByName(const std::string &name,
 
 
 CharacterDisplay::CharacterDisplay(CharSelectDialog *charSelectDialog):
-    mCharacter(0),
+    mCharacter(nullptr),
     mPlayerBox(new PlayerBox)
 {
     mButton = new Button("", "go", charSelectDialog);
@@ -376,7 +376,7 @@ void CharacterDisplay::setCharacter(Net::Character *character)
         return;
 
     mCharacter = character;
-    mPlayerBox->setPlayer(character ? character->dummy : 0);
+    mPlayerBox->setPlayer(character ? character->dummy : nullptr);
     update();
 }
 
diff --git a/src/gui/charselectdialog.h b/src/gui/charselectdialog.h
index a0307b00..d30e4e68 100644
--- a/src/gui/charselectdialog.h
+++ b/src/gui/charselectdialog.h
@@ -52,11 +52,11 @@ class CharSelectDialog : public Window, public gcn::ActionListener,
 
         CharSelectDialog(LoginData *loginData);
 
-        ~CharSelectDialog();
+        ~CharSelectDialog() override;
 
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
-        void keyPressed(gcn::KeyEvent &keyEvent);
+        void keyPressed(gcn::KeyEvent &keyEvent) override;
 
         enum SelectAction {
             Focus,
diff --git a/src/gui/chatwindow.cpp b/src/gui/chatwindow.cpp
index cc09d19e..1ae2fcbd 100644
--- a/src/gui/chatwindow.cpp
+++ b/src/gui/chatwindow.cpp
@@ -71,7 +71,7 @@ class ChatInput : public TextField, public gcn::FocusListener
          * Called if the chat input loses focus. It will set itself to
          * invisible as result.
          */
-        void focusLost(const gcn::Event &event)
+        void focusLost(const gcn::Event &event) override
         {
             setVisible(false);
         }
@@ -79,9 +79,9 @@ class ChatInput : public TextField, public gcn::FocusListener
 
 class ChatAutoComplete : public AutoCompleteLister
 {
-    void getAutoCompleteList(std::vector<std::string> &list) const
+    void getAutoCompleteList(std::vector<std::string> &list) const override
     {
-        ChatTab *tab = static_cast<ChatTab*>(chatWindow->mChatTabs
+        auto *tab = static_cast<ChatTab*>(chatWindow->mChatTabs
                                              ->getSelectedTab());
 
         return tab->getAutoCompleteList(list);
@@ -278,7 +278,7 @@ void ChatWindow::removeAllWhispers()
         tabs.push_back(iter->second);
     }
 
-    for (std::list<ChatTab*>::iterator it = tabs.begin();
+    for (auto it = tabs.begin();
          it != tabs.end(); ++it)
     {
         delete *it;
@@ -299,7 +299,7 @@ void ChatWindow::doPresent()
     std::string response = "";
     int playercount = 0;
 
-    for (ActorSpritesConstIterator it = actors.begin(), it_end = actors.end();
+    for (auto it = actors.begin(), it_end = actors.end();
          it != it_end; it++)
     {
         if ((*it)->getType() == ActorSprite::PLAYER)
@@ -471,7 +471,7 @@ void ChatWindow::whisper(const std::string &nick,
     if (tempNick.compare(playerName) == 0)
         return;
 
-    ChatTab *tab = 0;
+    ChatTab *tab = nullptr;
     TabMap::const_iterator i = mWhispers.find(tempNick);
 
     if (i != mWhispers.end())
@@ -521,7 +521,7 @@ ChatTab *ChatWindow::addWhisperTab(const std::string &nick, bool switchTo)
 
     if (mWhispers.find(tempNick) != mWhispers.end()
         || tempNick.compare(playerName) == 0)
-        return NULL;
+        return nullptr;
 
     ChatTab *ret = new WhisperTab(nick);
     mWhispers[tempNick] = ret;
diff --git a/src/gui/chatwindow.h b/src/gui/chatwindow.h
index 77c42cc0..b3072d4a 100644
--- a/src/gui/chatwindow.h
+++ b/src/gui/chatwindow.h
@@ -85,13 +85,13 @@ class ChatWindow : public Window,
         /**
          * Destructor: used to write back values to the config file
          */
-        ~ChatWindow();
+        ~ChatWindow() override;
 
         /**
          * Reset the chat window and recorder window attached to it to their
          * default positions.
          */
-        void resetToDefaultSize();
+        void resetToDefaultSize() override;
 
         /**
          * Gets the focused tab.
@@ -121,7 +121,7 @@ class ChatWindow : public Window,
         /**
          * Performs action.
          */
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
         /**
          * Request focus for typing chat message.
@@ -150,12 +150,12 @@ class ChatWindow : public Window,
         void addItemText(const std::string &item);
 
         /** Override to reset mTmpVisible */
-        void setVisible(bool visible);
+        void setVisible(bool visible) override;
 
-	void mousePressed(gcn::MouseEvent &event);
-	void mouseDragged(gcn::MouseEvent &event);
+	void mousePressed(gcn::MouseEvent &event) override;
+	void mouseDragged(gcn::MouseEvent &event) override;
 
-	void event(Event::Channel channel, const Event &event);
+	void event(Event::Channel channel, const Event &event) override;
 
         /**
          * Scrolls the chat window
@@ -214,7 +214,7 @@ class ChatWindow : public Window,
         /** Tabbed area for holding each channel. */
         TabbedArea *mChatTabs;
 
-        typedef std::map<const std::string, ChatTab*> TabMap;
+        using TabMap = std::map<const std::string, ChatTab *>;
         /** Manage whisper tabs */
         TabMap mWhispers;
 
diff --git a/src/gui/confirmdialog.h b/src/gui/confirmdialog.h
index af769a42..8eb3f46b 100644
--- a/src/gui/confirmdialog.h
+++ b/src/gui/confirmdialog.h
@@ -37,12 +37,12 @@ class ConfirmDialog : public Window, public gcn::ActionListener
 {
     public:
         ConfirmDialog(const std::string &title, const std::string &msg,
-                      Window *parent = NULL);
+                      Window *parent = nullptr);
 
         /**
          * Called when receiving actions from the widgets.
          */
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
     private:
         TextBox *mTextBox;
diff --git a/src/gui/connectiondialog.cpp b/src/gui/connectiondialog.cpp
index 237269c8..963005cf 100644
--- a/src/gui/connectiondialog.cpp
+++ b/src/gui/connectiondialog.cpp
@@ -39,9 +39,9 @@ ConnectionDialog::ConnectionDialog(const std::string &text,
     setMovable(false);
     setMinWidth(0);
 
-    ProgressIndicator *progressIndicator = new ProgressIndicator;
+    auto *progressIndicator = new ProgressIndicator;
     gcn::Label *label = new Label(text);
-    Button *cancelButton = new Button(_("Cancel"), "cancelButton", this);
+    auto *cancelButton = new Button(_("Cancel"), "cancelButton", this);
 
     place(0, 0, progressIndicator);
     place(0, 1, label);
diff --git a/src/gui/connectiondialog.h b/src/gui/connectiondialog.h
index 129fe5c6..e76a0a3e 100644
--- a/src/gui/connectiondialog.h
+++ b/src/gui/connectiondialog.h
@@ -50,9 +50,9 @@ class ConnectionDialog : public Window, gcn::ActionListener
          * Called when the user presses Cancel. Restores the global state to
          * the previous one.
          */
-        void action(const gcn::ActionEvent &);
+        void action(const gcn::ActionEvent &) override;
 
-        void draw(gcn::Graphics *graphics);
+        void draw(gcn::Graphics *graphics) override;
 
     private:
         gcn::Label *mLabel;
diff --git a/src/gui/customserverdialog.cpp b/src/gui/customserverdialog.cpp
index e0d25928..733a6b5c 100644
--- a/src/gui/customserverdialog.cpp
+++ b/src/gui/customserverdialog.cpp
@@ -53,13 +53,13 @@ CustomServerDialog::CustomServerDialog(ServerDialog *parent, int index):
 {
     setWindowName("CustomServerDialog");
 
-    Label *nameLabel = new Label(_("Name:"));
-    Label *serverAdressLabel = new Label(_("Address:"));
-    Label *portLabel = new Label(_("Port:"));
+    auto *nameLabel = new Label(_("Name:"));
+    auto *serverAdressLabel = new Label(_("Address:"));
+    auto *portLabel = new Label(_("Port:"));
 #ifdef MANASERV_SUPPORT
-    Label *typeLabel = new Label(_("Server type:"));
+    auto *typeLabel = new Label(_("Server type:"));
 #endif
-    Label *descriptionLabel = new Label(_("Description:"));
+    auto *descriptionLabel = new Label(_("Description:"));
     mServerAddressField = new TextField(std::string());
     mPortField = new TextField(std::string());
 
@@ -163,7 +163,7 @@ void CustomServerDialog::action(const gcn::ActionEvent &event)
         // Check the given information
         if (mServerAddressField->getText().empty())
         {
-            OkDialog *dlg = new OkDialog(_("Error"),
+            auto *dlg = new OkDialog(_("Error"),
                 _("Please type in at least the address of the server."));
             dlg->addActionListener(this);
         }
@@ -220,6 +220,6 @@ void CustomServerDialog::keyPressed(gcn::KeyEvent &keyEvent)
     }
     else if (key.getValue() == Key::ENTER)
     {
-        action(gcn::ActionEvent(NULL, mOkButton->getActionEventId()));
+        action(gcn::ActionEvent(nullptr, mOkButton->getActionEventId()));
     }
 }
diff --git a/src/gui/customserverdialog.h b/src/gui/customserverdialog.h
index 19812875..59c1d2cc 100644
--- a/src/gui/customserverdialog.h
+++ b/src/gui/customserverdialog.h
@@ -48,12 +48,12 @@ class TypeListModel : public gcn::ListModel
         /**
          * Used to get number of line in the list
          */
-        int getNumberOfElements() { return 2; }
+        int getNumberOfElements() override { return 2; }
 
         /**
          * Used to get an element from the list
          */
-        std::string getElementAt(int elementIndex);
+        std::string getElementAt(int elementIndex) override;
 };
 
 /**
@@ -68,16 +68,16 @@ class CustomServerDialog : public Window,
     public:
         CustomServerDialog(ServerDialog *parent, int index = -1);
 
-        ~CustomServerDialog();
+        ~CustomServerDialog() override;
 
         /**
          * Called when receiving actions from the widgets.
          */
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
-        void keyPressed(gcn::KeyEvent &keyEvent);
+        void keyPressed(gcn::KeyEvent &keyEvent) override;
 
-        void logic();
+        void logic() override;
 
     private:
         TextField *mServerAddressField;
diff --git a/src/gui/debugwindow.cpp b/src/gui/debugwindow.cpp
index 37c68673..43d84f61 100644
--- a/src/gui/debugwindow.cpp
+++ b/src/gui/debugwindow.cpp
@@ -79,7 +79,7 @@ public:
         h.reflowLayout(0, 0);
     }
 
-    void logic()
+    void logic() override
     {
         if (!isVisible())
             return;
@@ -130,7 +130,7 @@ class DebugSwitches : public Container, public gcn::ActionListener
 public:
     DebugSwitches()
     {
-        Label *showLabel = new Label(_("Show:"));
+        auto *showLabel = new Label(_("Show:"));
         mGrid = new CheckBox(_("Grid"));
         mCollisionTiles = new CheckBox(_("Collision tiles"));
         mBeingCollisionRadius = new CheckBox(_("Being collision radius"));
@@ -139,7 +139,7 @@ public:
         mMousePath = new CheckBox(_("Mouse path"));
         mBeingIds = new CheckBox(_("Being Ids"));
 
-        Label *specialsLabel = new Label(_("Specials:"));
+        auto *specialsLabel = new Label(_("Specials:"));
         mSpecialNormal = new RadioButton(_("Normal"), "mapdebug");
         mSpecial1 = new RadioButton(_("Special 1"), "mapdebug");
         mSpecial2 = new RadioButton(_("Special 2"), "mapdebug");
@@ -179,7 +179,7 @@ public:
         mSpecial3->addActionListener(this);
     }
 
-    void action(const gcn::ActionEvent &event)
+    void action(const gcn::ActionEvent &event) override
     {
         int flags = 0;
 
@@ -233,7 +233,7 @@ DebugWindow::DebugWindow()
     setMinHeight(100);
     setDefaultSize(0, 120, 300, 190);
 
-    TabbedArea *tabs = new TabbedArea;
+    auto *tabs = new TabbedArea;
     place(0, 0, tabs, 2, 2);
     loadWindowState();
 
diff --git a/src/gui/emotepopup.h b/src/gui/emotepopup.h
index 9a7b3f3e..cb1c7b89 100644
--- a/src/gui/emotepopup.h
+++ b/src/gui/emotepopup.h
@@ -50,15 +50,15 @@ class EmotePopup : public Popup
          */
         EmotePopup();
 
-        virtual ~EmotePopup();
+        ~EmotePopup() override;
 
         /**
          * Draws the emotes.
          */
-        void draw(gcn::Graphics *graphics);
+        void draw(gcn::Graphics *graphics) override;
 
-        void mousePressed(gcn::MouseEvent &event);
-        void mouseMoved(gcn::MouseEvent &event);
+        void mousePressed(gcn::MouseEvent &event) override;
+        void mouseMoved(gcn::MouseEvent &event) override;
 
         /**
          * Returns the selected emote.
@@ -113,7 +113,7 @@ class EmotePopup : public Popup
         int mRowCount;
         int mColumnCount;
 
-        typedef std::list<gcn::SelectionListener*> Listeners;
+        using Listeners = std::list<gcn::SelectionListener *>;
 
         Listeners mListeners;
 
diff --git a/src/gui/equipmentwindow.cpp b/src/gui/equipmentwindow.cpp
index 85a4c766..d646b78c 100644
--- a/src/gui/equipmentwindow.cpp
+++ b/src/gui/equipmentwindow.cpp
@@ -52,7 +52,7 @@ static const int BOX_HEIGHT = 36;
 
 EquipmentWindow::EquipmentWindow(Equipment *equipment):
     Window(_("Equipment")),
-    mEquipBox(0),
+    mEquipBox(nullptr),
     mSelected(-1),
     mEquipment(equipment),
     mBoxesNumber(0)
@@ -61,7 +61,7 @@ EquipmentWindow::EquipmentWindow(Equipment *equipment):
     setupWindow->registerWindowForReset(this);
 
     // Control that shows the Player
-    PlayerBox *playerBox = new PlayerBox;
+    auto *playerBox = new PlayerBox;
     playerBox->setDimension(gcn::Rectangle(50, 80, 74, 123));
     playerBox->setPlayer(local_player);
 
@@ -122,7 +122,7 @@ void EquipmentWindow::draw(gcn::Graphics *graphics)
     Window::drawChildren(graphics);
 
     // Draw equipment boxes
-    Graphics *g = static_cast<Graphics*>(graphics);
+    auto *g = static_cast<Graphics*>(graphics);
 
     for (int i = 0; i < mBoxesNumber; i++)
     {
@@ -194,7 +194,7 @@ Item *EquipmentWindow::getItem(int x, int y) const
         if (tRect.isPointInRect(x, y))
             return mEquipment->getEquipment(i);
     }
-    return 0;
+    return nullptr;
 }
 
 std::string EquipmentWindow::getSlotName(int x, int y) const
@@ -216,7 +216,7 @@ void EquipmentWindow::mousePressed(gcn::MouseEvent& mouseEvent)
 
     const int x = mouseEvent.getX();
     const int y = mouseEvent.getY();
-    Item *item = 0;
+    Item *item = nullptr;
 
     // Checks if any of the presses were in the equip boxes.
     for (int i = 0; i < mBoxesNumber; ++i)
diff --git a/src/gui/equipmentwindow.h b/src/gui/equipmentwindow.h
index 29814dc5..1bfc5f00 100644
--- a/src/gui/equipmentwindow.h
+++ b/src/gui/equipmentwindow.h
@@ -43,16 +43,16 @@ class EquipmentWindow : public Window, public gcn::ActionListener
     public:
         EquipmentWindow(Equipment *equipment);
 
-        ~EquipmentWindow();
+        ~EquipmentWindow() override;
 
         /**
          * Draws the equipment window.
          */
-        void draw(gcn::Graphics *graphics);
+        void draw(gcn::Graphics *graphics) override;
 
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
-        void mousePressed(gcn::MouseEvent& mouseEvent);
+        void mousePressed(gcn::MouseEvent& mouseEvent) override;
 
         /**
          * Loads the correct amount of displayed equip boxes.
@@ -74,7 +74,7 @@ class EquipmentWindow : public Window, public gcn::ActionListener
             EquipBox() :
                 posX(0),
                 posY(0),
-                backgroundImage(0)
+                backgroundImage(nullptr)
             {}
 
             int posX;
@@ -89,8 +89,8 @@ class EquipmentWindow : public Window, public gcn::ActionListener
         int mBoxesNumber; /**< Number of equipment boxes to display */
 
     private:
-        void mouseExited(gcn::MouseEvent &event);
-        void mouseMoved(gcn::MouseEvent &event);
+        void mouseExited(gcn::MouseEvent &event) override;
+        void mouseMoved(gcn::MouseEvent &event) override;
 
         Item *getItem(int x, int y) const;
         std::string getSlotName(int x, int y) const;
diff --git a/src/gui/focushandler.cpp b/src/gui/focushandler.cpp
index ba6c834b..bef00125 100644
--- a/src/gui/focushandler.cpp
+++ b/src/gui/focushandler.cpp
@@ -31,7 +31,7 @@ void FocusHandler::requestModalFocus(gcn::Widget *widget)
     if (mModalFocusedWidget && mModalFocusedWidget != widget)
     {
         mModalStack.push_front(mModalFocusedWidget);
-        mModalFocusedWidget = NULL;
+        mModalFocusedWidget = nullptr;
     }
 
     gcn::FocusHandler::requestModalFocus(widget);
@@ -85,7 +85,7 @@ void FocusHandler::checkForWindow()
 
         while (widget)
         {
-            Window *window = dynamic_cast<Window*>(widget);
+            auto *window = dynamic_cast<Window*>(widget);
 
             if (window)
             {
diff --git a/src/gui/focushandler.h b/src/gui/focushandler.h
index debfefe8..eb59bcf3 100644
--- a/src/gui/focushandler.h
+++ b/src/gui/focushandler.h
@@ -39,27 +39,27 @@ class FocusHandler : public gcn::FocusHandler
          * then that widget loses modal focus and will regain it after this
          * widget releases his modal focus.
          */
-        void requestModalFocus(gcn::Widget *widget);
+        void requestModalFocus(gcn::Widget *widget) override;
 
         /**
          * Releases modal focus of a widget. When this widget had modal focus
          * and there are other widgets that had also requested modal focus,
          * then modal focus will be transfered to the last of those.
          */
-        void releaseModalFocus(gcn::Widget *widget);
+        void releaseModalFocus(gcn::Widget *widget) override;
 
         /**
          * Removes a widget from the focus handler. Also makes sure no dangling
          * pointers remain in modal focus stack.
          */
-        void remove(gcn::Widget *widget);
+        void remove(gcn::Widget *widget) override;
 
         /**
          * Overloaded to allow windows to move to the top when one of their
          * widgets is tabbed to when tabbing through focusable elements.
          */
-        void tabNext();
-        void tabPrevious();
+        void tabNext() override;
+        void tabPrevious() override;
 
     private:
         /**
diff --git a/src/gui/gui.cpp b/src/gui/gui.cpp
index 64509e21..e0487d95 100644
--- a/src/gui/gui.cpp
+++ b/src/gui/gui.cpp
@@ -45,14 +45,14 @@
 #include <guichan/image.hpp>
 
 // Guichan stuff
-Gui *gui = 0;
-SDLInput *guiInput = 0;
+Gui *gui = nullptr;
+SDLInput *guiInput = nullptr;
 
 // Bolded font
-gcn::Font *boldFont = 0;
+gcn::Font *boldFont = nullptr;
 
 // Mono font
-gcn::Font *monoFont = 0;
+gcn::Font *monoFont = nullptr;
 
 class GuiConfigListener : public EventListener
 {
@@ -61,7 +61,7 @@ class GuiConfigListener : public EventListener
             mGui(g)
         {}
 
-        void event(Event::Channel channel, const Event &event)
+        void event(Event::Channel channel, const Event &event) override
         {
             if (channel == Event::ConfigChannel)
             {
@@ -79,7 +79,7 @@ class GuiConfigListener : public EventListener
 
 Gui::Gui(Graphics *graphics):
     mCustomCursor(false),
-    mMouseCursors(NULL),
+    mMouseCursors(nullptr),
     mMouseCursorAlpha(1.0f),
     mMouseInactivityTimer(0),
     mCursorType(CURSOR_POINTER)
@@ -97,7 +97,7 @@ Gui::Gui(Graphics *graphics):
     mFocusHandler = new FocusHandler;
 
     // Initialize top GUI widget
-    WindowContainer *guiTop = new WindowContainer;
+    auto *guiTop = new WindowContainer;
     guiTop->setFocusable(true);
     guiTop->setSize(graphics->getWidth(), graphics->getHeight());
     guiTop->setOpaque(false);
@@ -225,7 +225,7 @@ void Gui::draw()
 
 void Gui::videoResized()
 {
-    WindowContainer *top = static_cast<WindowContainer*>(getTop());
+    auto *top = static_cast<WindowContainer*>(getTop());
 
     int oldWidth = top->getWidth();
     int oldHeight = top->getHeight();
@@ -260,7 +260,7 @@ void Gui::setUseCustomCursor(bool customCursor)
             if (mMouseCursors)
             {
                 mMouseCursors->decRef();
-                mMouseCursors = NULL;
+                mMouseCursors = nullptr;
             }
         }
     }
diff --git a/src/gui/gui.h b/src/gui/gui.h
index 998b6ec8..c70ed9ad 100644
--- a/src/gui/gui.h
+++ b/src/gui/gui.h
@@ -50,19 +50,19 @@ class Gui : public gcn::Gui
     public:
         Gui(Graphics *screen);
 
-        ~Gui();
+        ~Gui() override;
 
         /**
          * Performs logic of the GUI. Overridden to track mouse pointer
          * activity.
          */
-        void logic();
+        void logic() override;
 
         /**
          * Draws the whole Gui by calling draw functions down in the
          * Gui hierarchy. It also draws the mouse pointer.
          */
-        void draw();
+        void draw() override;
 
         /**
          * Called when the application window has been resized.
@@ -114,7 +114,7 @@ class Gui : public gcn::Gui
         };
 
     protected:
-        void handleMouseMoved(const gcn::MouseInput &mouseInput);
+        void handleMouseMoved(const gcn::MouseInput &mouseInput) override;
         void handleTextInput(const TextInput &textInput);
 
     private:
diff --git a/src/gui/helpwindow.cpp b/src/gui/helpwindow.cpp
index e4ded03a..077f3091 100644
--- a/src/gui/helpwindow.cpp
+++ b/src/gui/helpwindow.cpp
@@ -49,7 +49,7 @@ HelpWindow::HelpWindow():
     mBrowserBox = new BrowserBox;
     mBrowserBox->setOpaque(false);
     mScrollArea = new ScrollArea(mBrowserBox);
-    Button *okButton = new Button(_("Close"), "close", this);
+    auto *okButton = new Button(_("Close"), "close", this);
 
     mScrollArea->setDimension(gcn::Rectangle(5, 5, 445,
                                              335 - okButton->getHeight()));
diff --git a/src/gui/helpwindow.h b/src/gui/helpwindow.h
index 0295db7d..30fa450e 100644
--- a/src/gui/helpwindow.h
+++ b/src/gui/helpwindow.h
@@ -42,12 +42,12 @@ class HelpWindow : public Window, public LinkHandler,
         /**
          * Called when receiving actions from the widgets.
          */
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
         /**
          * Handles link action.
          */
-        void handleLink(const std::string &link);
+        void handleLink(const std::string &link) override;
 
         /**
          * Loads help in the dialog.
diff --git a/src/gui/inventorywindow.cpp b/src/gui/inventorywindow.cpp
index c6b93723..e5f6b00c 100644
--- a/src/gui/inventorywindow.cpp
+++ b/src/gui/inventorywindow.cpp
@@ -452,8 +452,8 @@ bool InventoryWindow::isInputFocused() const
 
 bool InventoryWindow::isAnyInputFocused()
 {
-    WindowList::iterator it = instances.begin();
-    WindowList::iterator it_end = instances.end();
+    auto it = instances.begin();
+    auto it_end = instances.end();
 
     for (; it != it_end; it++)
     {
diff --git a/src/gui/inventorywindow.h b/src/gui/inventorywindow.h
index 39876e53..389312b3 100644
--- a/src/gui/inventorywindow.h
+++ b/src/gui/inventorywindow.h
@@ -54,12 +54,12 @@ class InventoryWindow : public Window,
     public:
         InventoryWindow(Inventory *inventory);
 
-        ~InventoryWindow();
+        ~InventoryWindow() override;
 
         /**
          * Called when receiving actions from the widgets.
          */
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
         /**
          * Returns the selected item.
@@ -69,27 +69,27 @@ class InventoryWindow : public Window,
         /**
          * Handles closing of the window
          */
-        virtual void widgetHidden(const gcn::Event &event);
+        void widgetHidden(const gcn::Event &event) override;
 
         /**
          * Handles the mouse clicks.
          */
-        void mouseClicked(gcn::MouseEvent &event);
+        void mouseClicked(gcn::MouseEvent &event) override;
 
         /**
          * Handles the key presses.
          */
-        void keyPressed(gcn::KeyEvent &event);
+        void keyPressed(gcn::KeyEvent &event) override;
 
         /**
          * Handles the key releases.
          */
-        void keyReleased(gcn::KeyEvent &event);
+        void keyReleased(gcn::KeyEvent &event) override;
 
         /**
          * Updates labels to currently selected item.
          */
-        void valueChanged(const gcn::SelectionEvent &event);
+        void valueChanged(const gcn::SelectionEvent &event) override;
 
         /**
          * Sets whether the split button should be shown.
@@ -100,7 +100,7 @@ class InventoryWindow : public Window,
          * Closes the Storage Window, as well as telling the server that the
          * window has been closed.
          */
-        void close();
+        void close() override;
 
         /**
          * Updates the buttons.
@@ -111,11 +111,11 @@ class InventoryWindow : public Window,
 
         static bool isAnyInputFocused();
 
-        void slotsChanged(Inventory* inventory);
+        void slotsChanged(Inventory* inventory) override;
 
         bool isMainInventory() { return mInventory->isMainInventory(); }
 
-        void event(Event::Channel channel, const Event &event);
+        void event(Event::Channel channel, const Event &event) override;
 
     private:
         /**
@@ -124,7 +124,7 @@ class InventoryWindow : public Window,
         void updateWeight();
 
 
-        typedef std::list<InventoryWindow*> WindowList;
+        using WindowList = std::list<InventoryWindow *>;
         static WindowList instances;
 
         Inventory *mInventory;
diff --git a/src/gui/itemamountwindow.cpp b/src/gui/itemamountwindow.cpp
index a2c2ca55..285936a5 100644
--- a/src/gui/itemamountwindow.cpp
+++ b/src/gui/itemamountwindow.cpp
@@ -108,11 +108,11 @@ ItemAmountWindow::ItemAmountWindow(Usage usage, Window *parent, Item *item,
     mItemIcon = new Icon(image);
 
     // Buttons
-    Button *minusButton = new Button(_("-"), "dec", this);
-    Button *plusButton = new Button(_("+"), "inc", this);
-    Button *okButton = new Button(_("OK"), "ok", this);
-    Button *cancelButton = new Button(_("Cancel"), "cancel", this);
-    Button *addAllButton = new Button(_("All"), "all", this);
+    auto *minusButton = new Button(_("-"), "dec", this);
+    auto *plusButton = new Button(_("+"), "inc", this);
+    auto *okButton = new Button(_("OK"), "ok", this);
+    auto *cancelButton = new Button(_("Cancel"), "cancel", this);
+    auto *addAllButton = new Button(_("All"), "all", this);
 
     minusButton->adjustSize();
     minusButton->setWidth(plusButton->getWidth());
diff --git a/src/gui/itemamountwindow.h b/src/gui/itemamountwindow.h
index cf18d72a..d0ac52d5 100644
--- a/src/gui/itemamountwindow.h
+++ b/src/gui/itemamountwindow.h
@@ -53,7 +53,7 @@ class ItemAmountWindow : public Window,
         /**
          * Called when receiving actions from widget.
          */
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
         /**
          * Sets default amount value.
@@ -61,15 +61,15 @@ class ItemAmountWindow : public Window,
         void resetAmount();
 
         // MouseListener
-        void mouseMoved(gcn::MouseEvent &event);
-        void mouseExited(gcn::MouseEvent &event);
+        void mouseMoved(gcn::MouseEvent &event) override;
+        void mouseExited(gcn::MouseEvent &event) override;
 
         /**
          * Schedules the Item Amount window for deletion.
          */
-        void close();
+        void close() override;
 
-        void keyReleased(gcn::KeyEvent &keyEvent);
+        void keyReleased(gcn::KeyEvent &keyEvent) override;
 
         /**
          * Creates the dialog, or bypass it if there aren't enough items.
@@ -77,7 +77,7 @@ class ItemAmountWindow : public Window,
         static void showWindow(Usage usage, Window *parent, Item *item,
                          int maxRange = 0);
 
-        ~ItemAmountWindow();
+        ~ItemAmountWindow() override;
 
     private:
         static void finish(Item *item, int amount, Usage usage);
diff --git a/src/gui/itempopup.cpp b/src/gui/itempopup.cpp
index c09a0504..f096e5ca 100644
--- a/src/gui/itempopup.cpp
+++ b/src/gui/itempopup.cpp
@@ -83,7 +83,7 @@ static gcn::Color getColorFromItemType(ItemType type)
 
 ItemPopup::ItemPopup():
     Popup("ItemPopup"),
-    mIcon(0)
+    mIcon(nullptr)
 {
     // Item Name
     mItemName = new Label;
@@ -102,7 +102,7 @@ ItemPopup::ItemPopup():
     mItemWeight = new TextBox;
     mItemWeight->setEditable(false);
 
-    mIcon = new Icon(0);
+    mIcon = new Icon(nullptr);
 
     add(mItemName);
     add(mItemDesc);
@@ -130,7 +130,7 @@ void ItemPopup::setEquipmentText(const std::string& text)
 
 void ItemPopup::setNoItem()
 {
-    mIcon->setImage(0);
+    mIcon->setImage(nullptr);
 
     std::string caption = _("No item");
     if (!mItemEquipSlot.empty())
@@ -180,7 +180,7 @@ void ItemPopup::setItem(const ItemInfo &item, bool showImage)
     }
     else
     {
-        mIcon->setImage(0);
+        mIcon->setImage(nullptr);
     }
 
     mItemType = item.getItemType();
@@ -198,7 +198,7 @@ void ItemPopup::setItem(const ItemInfo &item, bool showImage)
     {
         const std::vector<std::string> &effect = item.getEffect();
         std::string temp = "";
-        for (std::vector<std::string>::const_iterator it = effect.begin(),
+        for (auto it = effect.begin(),
              it_end = effect.end(); it != it_end; ++it)
             temp += temp.empty() ? *it : "\n" + *it;
         mItemEffect->setTextWrapped(temp, ITEMPOPUP_WRAP_WIDTH);
diff --git a/src/gui/itempopup.h b/src/gui/itempopup.h
index ca1b4179..3b213633 100644
--- a/src/gui/itempopup.h
+++ b/src/gui/itempopup.h
@@ -46,7 +46,7 @@ class ItemPopup : public Popup
         /**
          * Destructor. Cleans up the item popup on deletion.
          */
-        ~ItemPopup();
+        ~ItemPopup() override;
 
         /**
          * Tells the item popup to say: No Item.
@@ -63,7 +63,7 @@ class ItemPopup : public Popup
          */
         void setItem(const ItemInfo &item, bool showImage = false);
 
-        void mouseMoved(gcn::MouseEvent &mouseEvent);
+        void mouseMoved(gcn::MouseEvent &mouseEvent) override;
 
     private:
         gcn::Label *mItemName;
diff --git a/src/gui/logindialog.cpp b/src/gui/logindialog.cpp
index 5c73c27f..4d065d65 100644
--- a/src/gui/logindialog.cpp
+++ b/src/gui/logindialog.cpp
@@ -138,11 +138,11 @@ void LoginDialog::keyPressed(gcn::KeyEvent &keyEvent)
 
     if (key.getValue() == Key::ESCAPE)
     {
-        action(gcn::ActionEvent(NULL, mServerButton->getActionEventId()));
+        action(gcn::ActionEvent(nullptr, mServerButton->getActionEventId()));
     }
     else if (key.getValue() == Key::ENTER)
     {
-        action(gcn::ActionEvent(NULL, mLoginButton->getActionEventId()));
+        action(gcn::ActionEvent(nullptr, mLoginButton->getActionEventId()));
     }
     else
     {
diff --git a/src/gui/logindialog.h b/src/gui/logindialog.h
index 87281b00..5761f4a6 100644
--- a/src/gui/logindialog.h
+++ b/src/gui/logindialog.h
@@ -44,17 +44,17 @@ class LoginDialog : public Window, public gcn::ActionListener,
     public:
         LoginDialog(LoginData *loginData);
 
-        ~LoginDialog();
+        ~LoginDialog() override;
 
         /**
          * Called when receiving actions from the widgets.
          */
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
         /**
          * Called when a key is pressed in one of the text fields.
          */
-        void keyPressed(gcn::KeyEvent &keyEvent);
+        void keyPressed(gcn::KeyEvent &keyEvent) override;
 
     private:
         /**
diff --git a/src/gui/minimap.cpp b/src/gui/minimap.cpp
index 59e385c4..1682b972 100644
--- a/src/gui/minimap.cpp
+++ b/src/gui/minimap.cpp
@@ -43,8 +43,8 @@ bool Minimap::mShow = true;
 
 Minimap::Minimap():
     Window(_("Map")),
-    mMap(0),
-    mMapImage(0),
+    mMap(nullptr),
+    mMapImage(nullptr),
     mWidthProportion(0.5),
     mHeightProportion(0.5)
 {
@@ -92,7 +92,7 @@ void Minimap::setMap(Map *map)
     if (mMapImage)
     {
         mMapImage->decRef();
-        mMapImage = 0;
+        mMapImage = nullptr;
     }
 
     if (map)
@@ -192,7 +192,7 @@ void Minimap::draw(gcn::Graphics *graphics)
 
     const ActorSprites &actors = actorSpriteManager->getAll();
 
-    for (ActorSpritesConstIterator it = actors.begin(), it_end = actors.end();
+    for (auto it = actors.begin(), it_end = actors.end();
          it != it_end; it++)
     {
         if ((*it)->getType() == ActorSprite::FLOOR_ITEM)
diff --git a/src/gui/minimap.h b/src/gui/minimap.h
index e44753e3..3a122230 100644
--- a/src/gui/minimap.h
+++ b/src/gui/minimap.h
@@ -40,7 +40,7 @@ class Minimap : public Window
 {
     public:
         Minimap();
-        ~Minimap();
+        ~Minimap() override;
 
         /**
          * Sets the map image that should be displayed.
@@ -55,7 +55,7 @@ class Minimap : public Window
         /**
          * Draws the minimap.
          */
-        void draw(gcn::Graphics *graphics);
+        void draw(gcn::Graphics *graphics) override;
 
     private:
         Map *mMap;
diff --git a/src/gui/ministatuswindow.cpp b/src/gui/ministatuswindow.cpp
index a4fd358f..3cd97a6d 100644
--- a/src/gui/ministatuswindow.cpp
+++ b/src/gui/ministatuswindow.cpp
@@ -64,7 +64,7 @@ MiniStatusWindow::MiniStatusWindow():
         StatusWindow::updateMPBar(mMpBar);
     }
     else
-        mMpBar = 0;
+        mMpBar = nullptr;
 
     mXpBar = new ProgressBar(0, 100, 20, Theme::PROG_EXP);
     StatusWindow::updateXPBar(mXpBar);
diff --git a/src/gui/ministatuswindow.h b/src/gui/ministatuswindow.h
index b4392b6f..db9e4c69 100644
--- a/src/gui/ministatuswindow.h
+++ b/src/gui/ministatuswindow.h
@@ -45,15 +45,15 @@ class MiniStatusWindow : public Popup, public EventListener
 
         void drawIcons(Graphics *graphics);
 
-        void event(Event::Channel channel, const Event &event);
+        void event(Event::Channel channel, const Event &event) override;
 
-        void logic(); // Updates icons
+        void logic() override; // Updates icons
 
-        void draw(gcn::Graphics *graphics)
+        void draw(gcn::Graphics *graphics) override
         { drawChildren(graphics); }
 
-        void mouseMoved(gcn::MouseEvent &mouseEvent);
-        void mouseExited(gcn::MouseEvent &event);
+        void mouseMoved(gcn::MouseEvent &mouseEvent) override;
+        void mouseExited(gcn::MouseEvent &event) override;
 
     private:
         bool isInBar(ProgressBar *bar, int x, int y) const;
diff --git a/src/gui/npcdialog.cpp b/src/gui/npcdialog.cpp
index 74d8a4aa..8b348480 100644
--- a/src/gui/npcdialog.cpp
+++ b/src/gui/npcdialog.cpp
@@ -51,12 +51,12 @@
 #define CAPTION_CLOSE _("Close")
 #define CAPTION_SUBMIT _("Submit")
 
-typedef std::map<int, NpcDialog*> NpcDialogs;
+using NpcDialogs = std::map<int, NpcDialog *>;
 
 class NpcEventListener : public EventListener
 {
 public:
-    void event(Event::Channel channel, const Event &event);
+    void event(Event::Channel channel, const Event &event) override;
 
     NpcDialog *getDialog(int id, bool make = true);
 
@@ -66,7 +66,7 @@ private:
     NpcDialogs mNpcDialogs;
 };
 
-static NpcEventListener *npcListener = NULL;
+static NpcEventListener *npcListener = nullptr;
 
 NpcDialog::DialogList NpcDialog::instances;
 
@@ -333,8 +333,8 @@ bool NpcDialog::isInputFocused() const
 
 bool NpcDialog::isAnyInputFocused()
 {
-    DialogList::iterator it = instances.begin();
-    DialogList::iterator it_end = instances.end();
+    auto it = instances.begin();
+    auto it_end = instances.end();
 
     for (; it != it_end; it++)
     {
@@ -425,8 +425,8 @@ NpcDialog *NpcDialog::getActive()
     if (instances.size() == 1)
         return instances.front();
 
-    DialogList::iterator it = instances.begin();
-    DialogList::iterator it_end = instances.end();
+    auto it = instances.begin();
+    auto it_end = instances.end();
 
     for (; it != it_end; it++)
     {
@@ -436,13 +436,13 @@ NpcDialog *NpcDialog::getActive()
         }
     }
 
-    return 0;
+    return nullptr;
 }
 
 void NpcDialog::closeAll()
 {
-    DialogList::iterator it = instances.begin();
-    DialogList::iterator it_end = instances.end();
+    auto it = instances.begin();
+    auto it_end = instances.end();
 
     for (; it != it_end; it++)
     {
@@ -623,8 +623,8 @@ void NpcEventListener::event(Event::Channel channel,
 
 NpcDialog *NpcEventListener::getDialog(int id, bool make)
 {
-    NpcDialogs::iterator diag = mNpcDialogs.find(id);
-    NpcDialog *dialog = 0;
+    auto diag = mNpcDialogs.find(id);
+    NpcDialog *dialog = nullptr;
 
     if (diag == mNpcDialogs.end())
     {
@@ -645,7 +645,7 @@ NpcDialog *NpcEventListener::getDialog(int id, bool make)
 
 void NpcEventListener::removeDialog(int id)
 {
-    NpcDialogs::iterator it = mNpcDialogs.find(id);
+    auto it = mNpcDialogs.find(id);
     if (it != mNpcDialogs.end())
         mNpcDialogs.erase(it);
 }
diff --git a/src/gui/npcdialog.h b/src/gui/npcdialog.h
index 9c6839b0..49ec5f8a 100644
--- a/src/gui/npcdialog.h
+++ b/src/gui/npcdialog.h
@@ -52,12 +52,12 @@ class NpcDialog : public Window,
     public:
         NpcDialog(int npcId);
 
-        ~NpcDialog();
+        ~NpcDialog() override;
 
         /**
          * Called when receiving actions from the widgets.
          */
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
         /**
         * Sets the text shows in the dialog.
@@ -94,17 +94,17 @@ class NpcDialog : public Window,
          * Notifies the server that the client has performed a close action.
          * @overrides Window::close()
          */
-        void close();
+        void close() override;
 
         /**
          * Returns the number of items in the choices list.
          */
-        int getNumberOfElements();
+        int getNumberOfElements() override;
 
         /**
          * Returns the name of item number i of the choices list.
          */
-        std::string getElementAt(int i);
+        std::string getElementAt(int i) override;
 
         /**
          * Makes this dialog request a choice selection from the user.
@@ -144,13 +144,13 @@ class NpcDialog : public Window,
          *
          * @param event The calling event
          */
-        void widgetResized(const gcn::Event &event);
+        void widgetResized(const gcn::Event &event) override;
 
-        void setVisible(bool visible);
+        void setVisible(bool visible) override;
 
-        void event(Event::Channel channel, const Event &event);
+        void event(Event::Channel channel, const Event &event) override;
 
-        void mouseClicked(gcn::MouseEvent &mouseEvent);
+        void mouseClicked(gcn::MouseEvent &mouseEvent) override;
 
         /**
          * Returns the first active instance. Useful for pushing user
@@ -169,7 +169,7 @@ class NpcDialog : public Window,
         static void setup();
 
     private:
-        typedef std::list<NpcDialog*> DialogList;
+        using DialogList = std::list<NpcDialog *>;
         static DialogList instances;
 
         void buildLayout();
diff --git a/src/gui/npcpostdialog.cpp b/src/gui/npcpostdialog.cpp
index 6f673f5c..3567472a 100644
--- a/src/gui/npcpostdialog.cpp
+++ b/src/gui/npcpostdialog.cpp
@@ -51,10 +51,10 @@ NpcPostDialog::NpcPostDialog(int npcId):
     mSender->setWidth(65);
 
     // create button for sending
-    Button *sendButton = new Button(_("Send"), "send", this);
+    auto *sendButton = new Button(_("Send"), "send", this);
     sendButton->setPosition(400 - sendButton->getWidth(),
                             170 - sendButton->getHeight());
-    Button *cancelButton = new Button(_("Cancel"), "cancel", this);
+    auto *cancelButton = new Button(_("Cancel"), "cancel", this);
     cancelButton->setPosition(sendButton->getX() - (cancelButton->getWidth() + 2),
                               sendButton->getY());
 
@@ -64,7 +64,7 @@ NpcPostDialog::NpcPostDialog(int npcId):
     mText->setEditable(true);
 
     // create scroll box for letter text
-    ScrollArea *scrollArea = new ScrollArea(mText);
+    auto *scrollArea = new ScrollArea(mText);
     scrollArea->setHorizontalScrollPolicy(gcn::ScrollArea::SHOW_NEVER);
     scrollArea->setDimension(gcn::Rectangle(
                 5, mSender->getHeight() + 5,
@@ -124,8 +124,8 @@ void NpcPostDialog::setVisible(bool visible)
 
 void NpcPostDialog::closeAll()
 {
-    DialogList::iterator it = instances.begin();
-    DialogList::iterator it_end = instances.end();
+    auto it = instances.begin();
+    auto it_end = instances.end();
 
     for (; it != it_end; it++)
     {
diff --git a/src/gui/npcpostdialog.h b/src/gui/npcpostdialog.h
index cda44a66..61c17ca6 100644
--- a/src/gui/npcpostdialog.h
+++ b/src/gui/npcpostdialog.h
@@ -34,14 +34,14 @@ class NpcPostDialog : public Window, public gcn::ActionListener
 public:
     NpcPostDialog(int npcId);
 
-    ~NpcPostDialog();
+    ~NpcPostDialog() override;
 
     /**
      * Called when receiving actions from the widgets.
      */
-    void action(const gcn::ActionEvent &event);
+    void action(const gcn::ActionEvent &event) override;
 
-    void setVisible(bool visible);
+    void setVisible(bool visible) override;
 
     /**
      * Closes all instances.
@@ -49,7 +49,7 @@ public:
     static void closeAll();
 
 private:
-    typedef std::list<NpcPostDialog*> DialogList;
+    using DialogList = std::list<NpcPostDialog *>;
     static DialogList instances;
 
     int mNpcId;
diff --git a/src/gui/okdialog.h b/src/gui/okdialog.h
index 72f923b7..fcb327a9 100644
--- a/src/gui/okdialog.h
+++ b/src/gui/okdialog.h
@@ -37,12 +37,12 @@ class OkDialog : public Window, public gcn::ActionListener
 {
     public:
         OkDialog(const std::string &title, const std::string &msg,
-                 bool modal = true, Window *parent = NULL);
+                 bool modal = true, Window *parent = nullptr);
 
         /**
          * Called when receiving actions from the widgets.
          */
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
     private:
         TextBox *mTextBox;
diff --git a/src/gui/outfitwindow.cpp b/src/gui/outfitwindow.cpp
index d9730441..cd6c7d3d 100644
--- a/src/gui/outfitwindow.cpp
+++ b/src/gui/outfitwindow.cpp
@@ -54,7 +54,7 @@ OutfitWindow::OutfitWindow():
     mGridWidth(3),
     mGridHeight(3),
     mItemClicked(false),
-    mItemMoved(NULL),
+    mItemMoved(nullptr),
     mItemSelected(-1),
     mCurrentOutfit(0)
 {
@@ -188,7 +188,7 @@ void OutfitWindow::copyOutfit(int outfit)
 void OutfitWindow::draw(gcn::Graphics *graphics)
 {
     Window::draw(graphics);
-    Graphics *g = static_cast<Graphics*>(graphics);
+    auto *g = static_cast<Graphics*>(graphics);
 
     for (int i = 0; i < OUTFIT_ITEM_COUNT; i++)
     {
@@ -295,13 +295,13 @@ void OutfitWindow::mouseReleased(gcn::MouseEvent &event)
         const int index = getIndexFromGrid(event.getX(), event.getY());
         if (index == -1)
         {
-            mItemMoved = NULL;
+            mItemMoved = nullptr;
             return;
         }
         if (mItemMoved)
         {
             mItems[mCurrentOutfit][index] = mItemMoved->getId();
-            mItemMoved = NULL;
+            mItemMoved = nullptr;
         }
         if (mItemClicked)
             mItemClicked = false;
diff --git a/src/gui/outfitwindow.h b/src/gui/outfitwindow.h
index 65b22235..c5e24b9b 100644
--- a/src/gui/outfitwindow.h
+++ b/src/gui/outfitwindow.h
@@ -39,17 +39,17 @@ class OutfitWindow : public Window, gcn::ActionListener
     public:
         OutfitWindow();
 
-        ~OutfitWindow();
+        ~OutfitWindow() override;
 
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
-        void draw(gcn::Graphics *graphics);
+        void draw(gcn::Graphics *graphics) override;
 
-        void mousePressed(gcn::MouseEvent &event);
+        void mousePressed(gcn::MouseEvent &event) override;
 
-        void mouseDragged(gcn::MouseEvent &event);
+        void mouseDragged(gcn::MouseEvent &event) override;
 
-        void mouseReleased(gcn::MouseEvent &event);
+        void mouseReleased(gcn::MouseEvent &event) override;
 
         void load();
 
diff --git a/src/gui/palette.cpp b/src/gui/palette.cpp
index db51db4b..23ba75ee 100644
--- a/src/gui/palette.cpp
+++ b/src/gui/palette.cpp
@@ -77,8 +77,8 @@ const gcn::Color& Palette::getColor(char c, bool &valid)
 
 void Palette::advanceGradients()
 {
-    Palettes::iterator it = mInstances.begin();
-    Palettes::iterator it_end = mInstances.end();
+    auto it = mInstances.begin();
+    auto it_end = mInstances.end();
 
     for (; it != it_end; it++)
     {
diff --git a/src/gui/palette.h b/src/gui/palette.h
index a6347a5b..1ea7c467 100644
--- a/src/gui/palette.h
+++ b/src/gui/palette.h
@@ -124,7 +124,7 @@ class Palette
         /** Time tick, that gradient-type colors were updated the last time. */
         int mRainbowTime;
 
-        typedef std::set<Palette*> Palettes;
+        using Palettes = std::set<Palette *>;
         static Palettes mInstances;
 
         Palette(int size);
@@ -163,7 +163,7 @@ class Palette
                         committedColor.b;
             }
         };
-        typedef std::vector<ColorElem> Colors;
+        using Colors = std::vector<ColorElem>;
         /** Vector containing the colors. */
         Colors mColors;
         std::vector<ColorElem*> mGradVector;
diff --git a/src/gui/popupmenu.cpp b/src/gui/popupmenu.cpp
index 41b62bad..d63fe2f3 100644
--- a/src/gui/popupmenu.cpp
+++ b/src/gui/popupmenu.cpp
@@ -57,8 +57,8 @@ std::string tradePartnerName;
 PopupMenu::PopupMenu():
     Popup("PopupMenu"),
     mBeingId(0),
-    mFloorItem(NULL),
-    mItem(NULL)
+    mFloorItem(nullptr),
+    mItem(nullptr)
 {
     mBrowserBox = new BrowserBox;
     mBrowserBox->setPosition(4, 4);
@@ -348,8 +348,8 @@ void PopupMenu::handleLink(const std::string &link)
     setVisible(false);
 
     mBeingId = 0;
-    mFloorItem = NULL;
-    mItem = NULL;
+    mFloorItem = nullptr;
+    mItem = nullptr;
 }
 
 void PopupMenu::showPopup(Window *parent, int x, int y, Item *item,
diff --git a/src/gui/popupmenu.h b/src/gui/popupmenu.h
index d1526da2..c5be561d 100644
--- a/src/gui/popupmenu.h
+++ b/src/gui/popupmenu.h
@@ -60,7 +60,7 @@ class PopupMenu : public Popup, public LinkHandler
         /**
          * Handles link action.
          */
-        void handleLink(const std::string &link);
+        void handleLink(const std::string &link) override;
 
     private:
         BrowserBox* mBrowserBox;
diff --git a/src/gui/quitdialog.cpp b/src/gui/quitdialog.cpp
index 21c9fdc1..4262f9cc 100644
--- a/src/gui/quitdialog.cpp
+++ b/src/gui/quitdialog.cpp
@@ -37,7 +37,7 @@
 #include <assert.h>
 
 QuitDialog::QuitDialog(QuitDialog** pointerToMe):
-    Window(_("Quit"), true, NULL), mMyPointer(pointerToMe)
+    Window(_("Quit"), true, nullptr), mMyPointer(pointerToMe)
 {
     mForceQuit = new RadioButton(_("Quit"), "quitdialog");
     mLogoutQuit = new RadioButton(_("Quit"), "quitdialog");
@@ -90,7 +90,7 @@ QuitDialog::QuitDialog(QuitDialog** pointerToMe):
 
 QuitDialog::~QuitDialog()
 {
-    if (mMyPointer) *mMyPointer = NULL;
+    if (mMyPointer) *mMyPointer = nullptr;
     // Optional widgets, so delete them by hand.
     delete mForceQuit;
     delete mLogoutQuit;
@@ -138,10 +138,10 @@ void QuitDialog::keyPressed(gcn::KeyEvent &keyEvent)
     switch (key.getValue())
     {
         case Key::ENTER:
-            action(gcn::ActionEvent(NULL, mOkButton->getActionEventId()));
+            action(gcn::ActionEvent(nullptr, mOkButton->getActionEventId()));
             break;
         case Key::ESCAPE:
-            action(gcn::ActionEvent(NULL, mCancelButton->getActionEventId()));
+            action(gcn::ActionEvent(nullptr, mCancelButton->getActionEventId()));
             break;
         case Key::UP:
             dir = -1;
@@ -153,7 +153,7 @@ void QuitDialog::keyPressed(gcn::KeyEvent &keyEvent)
 
     if (dir != 0)
     {
-        std::vector<gcn::RadioButton*>::iterator it = mOptions.begin();
+        auto it = mOptions.begin();
 
         for (; it < mOptions.end(); it++)
         {
diff --git a/src/gui/quitdialog.h b/src/gui/quitdialog.h
index f3852642..d62d5c51 100644
--- a/src/gui/quitdialog.h
+++ b/src/gui/quitdialog.h
@@ -47,14 +47,14 @@ class QuitDialog : public Window, public gcn::ActionListener,
          */
         QuitDialog(QuitDialog **pointerToMe);
 
-        ~QuitDialog();
+        ~QuitDialog() override;
 
         /**
          * Called when receiving actions from the widgets.
          */
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
-        void keyPressed(gcn::KeyEvent &keyEvent);
+        void keyPressed(gcn::KeyEvent &keyEvent) override;
 
     private:
         void placeOption(ContainerPlacer &place, gcn::RadioButton *option);
diff --git a/src/gui/recorder.cpp b/src/gui/recorder.cpp
index 8c71c63a..a7a9b25a 100644
--- a/src/gui/recorder.cpp
+++ b/src/gui/recorder.cpp
@@ -42,7 +42,7 @@ Recorder::Recorder(ChatWindow *chat, const std::string &title,
     const int offsetY = getTitleBarHeight() + getPadding() + 10;
 
     mChat = chat;
-    Button *button = new Button(buttonTxt, "activate", this);
+    auto *button = new Button(buttonTxt, "activate", this);
 
     // 123 is the default chat window height. If you change this in Chat, please
     // change it here as well
diff --git a/src/gui/recorder.h b/src/gui/recorder.h
index 79a2b60e..efd73021 100644
--- a/src/gui/recorder.h
+++ b/src/gui/recorder.h
@@ -39,7 +39,7 @@ class Recorder : public Window, public gcn::ActionListener
         Recorder(ChatWindow *chat, const std::string &title = _("Recording..."),
                  const std::string &buttonTxt = _("Stop recording"));
 
-        virtual ~Recorder();
+        ~Recorder() override;
 
         /**
          * Outputs the message to the recorder file
@@ -65,7 +65,7 @@ class Recorder : public Window, public gcn::ActionListener
          *
          * @param event is the event that is generated
          */
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
     private:
         ChatWindow *mChat;
diff --git a/src/gui/register.cpp b/src/gui/register.cpp
index c220ab0c..e394e59b 100644
--- a/src/gui/register.cpp
+++ b/src/gui/register.cpp
@@ -56,9 +56,9 @@ void WrongDataNoticeListener::action(const gcn::ActionEvent &event)
 
 RegisterDialog::RegisterDialog(LoginData *loginData):
     Window(_("Register")),
-    mEmailField(0),
-    mMaleButton(0),
-    mFemaleButton(0),
+    mEmailField(nullptr),
+    mMaleButton(nullptr),
+    mFemaleButton(nullptr),
     mWrongDataNoticeListener(new WrongDataNoticeListener),
     mLoginData(loginData)
 {
@@ -215,7 +215,7 @@ void RegisterDialog::action(const gcn::ActionEvent &event)
                 mWrongDataNoticeListener->setTarget(this->mPasswordField);
             }
 
-            OkDialog *dlg = new OkDialog(_("Error"), errorMessage);
+            auto *dlg = new OkDialog(_("Error"), errorMessage);
             dlg->addActionListener(mWrongDataNoticeListener);
         }
         else
diff --git a/src/gui/register.h b/src/gui/register.h
index dbab8e62..a8f875cb 100644
--- a/src/gui/register.h
+++ b/src/gui/register.h
@@ -41,7 +41,7 @@ class WrongDataNoticeListener : public gcn::ActionListener
 {
     public:
         void setTarget(gcn::TextField *textField);
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
     private:
         gcn::TextField *mTarget;
 };
@@ -63,17 +63,17 @@ class RegisterDialog : public Window, public gcn::ActionListener,
          */
         RegisterDialog(LoginData *loginData);
 
-        ~RegisterDialog();
+        ~RegisterDialog() override;
 
         /**
          * Called when receiving actions from the widgets.
          */
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
         /**
          * Called when a key is pressed in one of the text fields.
          */
-        void keyPressed(gcn::KeyEvent &keyEvent);
+        void keyPressed(gcn::KeyEvent &keyEvent) override;
 
     private:
         /**
diff --git a/src/gui/selldialog.cpp b/src/gui/selldialog.cpp
index 41ee349a..76a4b3ac 100644
--- a/src/gui/selldialog.cpp
+++ b/src/gui/selldialog.cpp
@@ -316,8 +316,8 @@ void SellDialog::setVisible(bool visible)
 
 void SellDialog::closeAll()
 {
-    DialogList::iterator it = instances.begin();
-    DialogList::iterator it_end = instances.end();
+    auto it = instances.begin();
+    auto it_end = instances.end();
 
     for (; it != it_end; it++)
     {
diff --git a/src/gui/selldialog.h b/src/gui/selldialog.h
index c94e7250..7e37d860 100644
--- a/src/gui/selldialog.h
+++ b/src/gui/selldialog.h
@@ -41,7 +41,7 @@ class SellDialog : public Window, gcn::ActionListener, gcn::SelectionListener
     public:
         SellDialog(int npcId);
 
-        virtual ~SellDialog();
+        ~SellDialog() override;
 
         /**
          * Resets the dialog, clearing inventory.
@@ -56,19 +56,19 @@ class SellDialog : public Window, gcn::ActionListener, gcn::SelectionListener
         /**
          * Called when receiving actions from the widgets.
          */
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
         /**
          * Updates labels according to selected item.
          *
          * @see SelectionListener::selectionChanged
          */
-        void valueChanged(const gcn::SelectionEvent &event);
+        void valueChanged(const gcn::SelectionEvent &event) override;
 
         /**
          * Allows for quick-selling by extending double-click events.
          */
-        void mouseClicked(gcn::MouseEvent &mouseEvent);
+        void mouseClicked(gcn::MouseEvent &mouseEvent) override;
 
         /**
          * Gives Player's Money amount
@@ -78,7 +78,7 @@ class SellDialog : public Window, gcn::ActionListener, gcn::SelectionListener
         /**
          * Sets the visibility of this window.
          */
-        void setVisible(bool visible);
+        void setVisible(bool visible) override;
 
         /**
          * Closes all instances.
@@ -86,7 +86,7 @@ class SellDialog : public Window, gcn::ActionListener, gcn::SelectionListener
         static void closeAll();
 
     private:
-        typedef std::list<SellDialog*> DialogList;
+        using DialogList = std::list<SellDialog *>;
         static DialogList instances;
 
         /**
diff --git a/src/gui/serverdialog.cpp b/src/gui/serverdialog.cpp
index 3ea978e1..f0016322 100644
--- a/src/gui/serverdialog.cpp
+++ b/src/gui/serverdialog.cpp
@@ -112,12 +112,12 @@ public:
     {
     }
 
-    void draw(gcn::Graphics *graphics)
+    void draw(gcn::Graphics *graphics) override
     {
         if (!mListModel)
             return;
 
-        ServersListModel *model = static_cast<ServersListModel*>(mListModel);
+        auto *model = static_cast<ServersListModel*>(mListModel);
 
         updateAlpha();
 
@@ -165,7 +165,7 @@ public:
         }
     }
 
-    unsigned int getRowHeight() const
+    unsigned int getRowHeight() const override
     {
         return 2 * getFont()->getHeight();
     }
@@ -188,7 +188,7 @@ ServerDialog::ServerDialog(ServerInfo *serverInfo, const std::string &dir):
 
     mServersList = new ServersListBox(mServersListModel);
 
-    ScrollArea *usedScroll = new ScrollArea(mServersList);
+    auto *usedScroll = new ScrollArea(mServersList);
     usedScroll->setHorizontalScrollPolicy(gcn::ScrollArea::SHOW_NEVER);
 
     mDescription = new Label(std::string());
@@ -252,7 +252,7 @@ ServerDialog::~ServerDialog()
     {
         mDownload->cancel();
         delete mDownload;
-        mDownload = 0;
+        mDownload = nullptr;
     }
     delete mServersListModel;
 }
@@ -275,7 +275,7 @@ void ServerDialog::action(const gcn::ActionEvent &event)
 #endif
         )
         {
-            OkDialog *dlg = new OkDialog(_("Error"),
+            auto *dlg = new OkDialog(_("Error"),
                 _("Please select a valid server."));
             dlg->addActionListener(this);
         }
@@ -319,7 +319,7 @@ void ServerDialog::action(const gcn::ActionEvent &event)
         // Check whether a server is selected.
         if (index < 0)
         {
-            OkDialog *dlg = new OkDialog(_("Error"),
+            auto *dlg = new OkDialog(_("Error"),
                 _("Please select a custom server."));
             dlg->addActionListener(this);
         }
@@ -348,7 +348,7 @@ void ServerDialog::keyPressed(gcn::KeyEvent &keyEvent)
     }
     else if (key.getValue() == Key::ENTER)
     {
-        action(gcn::ActionEvent(NULL, mConnectButton->getActionEventId()));
+        action(gcn::ActionEvent(nullptr, mConnectButton->getActionEventId()));
     }
 }
 
@@ -523,7 +523,7 @@ void ServerDialog::loadServers()
         // Add the server to the local list if it's not already present
         bool found = false;
         int i = 0;
-        for (ServerInfos::iterator it = mServers.begin(); it != mServers.end();
+        for (auto it = mServers.begin(); it != mServers.end();
              ++it)
         {
             if (*it == server)
@@ -641,7 +641,7 @@ int ServerDialog::downloadUpdate(void *ptr, DownloadStatus status,
     if (status == DOWNLOAD_STATUS_CANCELLED)
         return -1;
 
-    ServerDialog *sd = reinterpret_cast<ServerDialog*>(ptr);
+    auto *sd = reinterpret_cast<ServerDialog*>(ptr);
     bool finished = false;
 
     if (status == DOWNLOAD_STATUS_COMPLETE)
diff --git a/src/gui/serverdialog.h b/src/gui/serverdialog.h
index cf9e62e7..d0ef0e55 100644
--- a/src/gui/serverdialog.h
+++ b/src/gui/serverdialog.h
@@ -50,19 +50,19 @@ class DropDown;
 class ServersListModel : public gcn::ListModel
 {
     public:
-        typedef std::pair<int, std::string> VersionString;
+        using VersionString = std::pair<int, std::string>;
 
         ServersListModel(ServerInfos *servers, ServerDialog *parent);
 
         /**
          * Used to get number of line in the list
          */
-        int getNumberOfElements();
+        int getNumberOfElements() override;
 
         /**
          * Used to get an element from the list
          */
-        std::string getElementAt(int elementIndex);
+        std::string getElementAt(int elementIndex) override;
 
         /**
          * Used to get the corresponding Server struct
@@ -73,7 +73,7 @@ class ServersListModel : public gcn::ListModel
         void setVersionString(int index, const std::string &version);
 
     private:
-        typedef std::vector<VersionString> VersionStrings;
+        using VersionStrings = std::vector<VersionString>;
 
         ServerInfos *mServers;
         VersionStrings mVersionStrings;
@@ -93,23 +93,23 @@ class ServerDialog : public Window,
     public:
         ServerDialog(ServerInfo *serverInfo, const std::string &dir);
 
-        ~ServerDialog();
+        ~ServerDialog() override;
 
         /**
          * Called when receiving actions from the widgets.
          */
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
-        void keyPressed(gcn::KeyEvent &keyEvent);
+        void keyPressed(gcn::KeyEvent &keyEvent) override;
 
         /**
          * Called when the selected value changed in the servers list box.
          */
-        void valueChanged(const gcn::SelectionEvent &event);
+        void valueChanged(const gcn::SelectionEvent &event) override;
 
-        void mouseClicked(gcn::MouseEvent &mouseEvent);
+        void mouseClicked(gcn::MouseEvent &mouseEvent) override;
 
-        void logic();
+        void logic() override;
 
     protected:
         friend class ServersListModel;
diff --git a/src/gui/setup.cpp b/src/gui/setup.cpp
index 930408ac..daced0fa 100644
--- a/src/gui/setup.cpp
+++ b/src/gui/setup.cpp
@@ -51,12 +51,12 @@ Setup::Setup():
     setContentSize(width, height);
 
     static const char *buttonNames[] = {
-        N_("Apply"), N_("Cancel"), N_("Reset Windows"), 0
+        N_("Apply"), N_("Cancel"), N_("Reset Windows"), nullptr
     };
     int x = width;
     for (const char **curBtn = buttonNames; *curBtn; ++curBtn)
     {
-        Button *btn = new Button(gettext(*curBtn), *curBtn, this);
+        auto *btn = new Button(gettext(*curBtn), *curBtn, this);
         x -= btn->getWidth() + 5;
         btn->setPosition(x, height - btn->getHeight() - 5);
         add(btn);
@@ -66,7 +66,7 @@ Setup::Setup():
             mResetWindows = btn;
     }
 
-    TabbedArea *panel = new TabbedArea;
+    auto *panel = new TabbedArea;
     panel->setDimension(gcn::Rectangle(5, 5, width - 10, height - 40));
 
     mTabs.push_back(new Setup_Video);
@@ -77,7 +77,7 @@ Setup::Setup():
     mTabs.push_back(new Setup_Colors);
     mTabs.push_back(new Setup_Players);
 
-    for (std::list<SetupTab*>::iterator i = mTabs.begin(), i_end = mTabs.end();
+    for (auto i = mTabs.begin(), i_end = mTabs.end();
          i != i_end; ++i)
     {
         SetupTab *tab = *i;
@@ -86,7 +86,7 @@ Setup::Setup():
 
     add(panel);
 
-    Label *version = new Label(FULL_VERSION);
+    auto *version = new Label(FULL_VERSION);
     version->setPosition(9, height - version->getHeight() - 9);
     add(version);
 
@@ -119,7 +119,7 @@ void Setup::action(const gcn::ActionEvent &event)
         if (!statusWindow)
             return;
 
-        for (std::list<Window*>::iterator it = mWindowsToReset.begin();
+        for (auto it = mWindowsToReset.begin();
                 it != mWindowsToReset.end(); it++)
         {
             (*it)->resetToDefaultSize();
diff --git a/src/gui/setup.h b/src/gui/setup.h
index c2f1ac04..d510267d 100644
--- a/src/gui/setup.h
+++ b/src/gui/setup.h
@@ -48,12 +48,12 @@ class Setup : public Window, public gcn::ActionListener
 {
     public:
         Setup();
-        ~Setup();
+        ~Setup() override;
 
         /**
          * Event handling method.
          */
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
         /**
          * Enables the reset button when in game.
diff --git a/src/gui/setup_audio.h b/src/gui/setup_audio.h
index ac81bdb7..4ee277ef 100644
--- a/src/gui/setup_audio.h
+++ b/src/gui/setup_audio.h
@@ -33,10 +33,10 @@ class Setup_Audio : public SetupTab, public gcn::ActionListener
     public:
         Setup_Audio();
 
-        void apply();
-        void cancel();
+        void apply() override;
+        void cancel() override;
 
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
     private:
         int mMusicVolume;
diff --git a/src/gui/setup_colors.cpp b/src/gui/setup_colors.cpp
index cf234eb3..bf86a93b 100644
--- a/src/gui/setup_colors.cpp
+++ b/src/gui/setup_colors.cpp
@@ -63,7 +63,7 @@ Setup_Colors::Setup_Colors() :
     mPreview->setOpaque(false);
 
     // don't do anything with links
-    mPreview->setLinkHandler(NULL);
+    mPreview->setLinkHandler(nullptr);
 
     mPreviewBox = new ScrollArea(mPreview);
     mPreviewBox->setHeight(20);
@@ -234,7 +234,7 @@ void Setup_Colors::valueChanged(const gcn::SelectionEvent &event)
     mPreviewBox->setContent(mTextPreview);
     mTextPreview->setFont(boldFont);
     mTextPreview->setTextColor(col);
-    mTextPreview->setTextBGColor(NULL);
+    mTextPreview->setTextBGColor(nullptr);
     mTextPreview->setOpaque(false);
     mTextPreview->setShadow(true);
     mTextPreview->setOutline(true);
@@ -348,7 +348,7 @@ void Setup_Colors::updateColor()
         return;
 
     int type = userPalette->getColorTypeAt(mSelected);
-    Palette::GradientType grad = static_cast<Palette::GradientType>((int)
+    auto grad = static_cast<Palette::GradientType>((int)
                                                 mGradTypeSlider->getValue());
     int delay = (int) mGradDelaySlider->getValue();
     userPalette->setGradient(type, grad);
diff --git a/src/gui/setup_colors.h b/src/gui/setup_colors.h
index e9144c73..b534ca8a 100644
--- a/src/gui/setup_colors.h
+++ b/src/gui/setup_colors.h
@@ -41,14 +41,14 @@ class Setup_Colors : public SetupTab,
 {
     public:
         Setup_Colors();
-        ~Setup_Colors();
+        ~Setup_Colors() override;
 
-        void apply();
-        void cancel();
+        void apply() override;
+        void cancel() override;
 
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
-        void valueChanged(const gcn::SelectionEvent &event);
+        void valueChanged(const gcn::SelectionEvent &event) override;
 
     private:
         static const std::string rawmsg;
diff --git a/src/gui/setup_interface.cpp b/src/gui/setup_interface.cpp
index b35a30fe..619a250c 100644
--- a/src/gui/setup_interface.cpp
+++ b/src/gui/setup_interface.cpp
@@ -65,14 +65,14 @@ const char *SIZE_NAME[4] =
 class FontSizeChoiceListModel : public gcn::ListModel
 {
 public:
-    virtual ~FontSizeChoiceListModel() { }
+    ~FontSizeChoiceListModel() override { }
 
-    virtual int getNumberOfElements()
+    int getNumberOfElements() override
     {
         return 4;
     }
 
-    virtual std::string getElementAt(int i)
+    std::string getElementAt(int i) override
     {
         if (i >= getNumberOfElements())
             return _("???");
@@ -120,7 +120,7 @@ Setup_Interface::Setup_Interface():
     setName(_("Interface"));
 
     // Create widgets
-    Spacer *space = new Spacer(0,10);
+    auto *space = new Spacer(0,10);
 
     mShowMonsterDamageCheckBox = new CheckBox(_("Show damage"),
                                               mShowMonsterDamageEnabled);
@@ -260,7 +260,7 @@ void Setup_Interface::action(const gcn::ActionEvent &event)
     }
     else if (id == "speech")
     {
-        Being::Speech val = (Being::Speech)mSpeechSlider->getValue();
+        auto val = (Being::Speech)mSpeechSlider->getValue();
         mSpeechLabel->setCaption(speechModeToString(val));
         mSpeechSlider->setValue(val);
         config.setValue("speech", val);
diff --git a/src/gui/setup_interface.h b/src/gui/setup_interface.h
index 2b1de5b7..530d575a 100644
--- a/src/gui/setup_interface.h
+++ b/src/gui/setup_interface.h
@@ -37,12 +37,12 @@ class Setup_Interface : public SetupTab, public gcn::ActionListener,
 {
     public:
         Setup_Interface();
-        ~Setup_Interface();
+        ~Setup_Interface() override;
 
-        void apply();
-        void cancel();
+        void apply() override;
+        void cancel() override;
 
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
     private:
         bool mShowMonsterDamageEnabled;
diff --git a/src/gui/setup_joystick.h b/src/gui/setup_joystick.h
index 2329ab4d..e51ccbe8 100644
--- a/src/gui/setup_joystick.h
+++ b/src/gui/setup_joystick.h
@@ -33,10 +33,10 @@ class Setup_Joystick : public SetupTab, public gcn::ActionListener
     public:
         Setup_Joystick();
 
-        void apply();
-        void cancel();
+        void apply() override;
+        void cancel() override;
 
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
     private:
         gcn::Label *mCalibrateLabel;
diff --git a/src/gui/setup_keyboard.cpp b/src/gui/setup_keyboard.cpp
index b66ba3aa..0ac64447 100644
--- a/src/gui/setup_keyboard.cpp
+++ b/src/gui/setup_keyboard.cpp
@@ -51,12 +51,12 @@ class KeyListModel : public gcn::ListModel
         /**
          * Returns the number of elements in container.
          */
-        int getNumberOfElements() { return keyboard.KEY_TOTAL; }
+        int getNumberOfElements() override { return keyboard.KEY_TOTAL; }
 
         /**
          * Returns element from container.
          */
-        std::string getElementAt(int i) { return mKeyFunctions[i]; }
+        std::string getElementAt(int i) override { return mKeyFunctions[i]; }
 
         /**
          * Sets element from container.
@@ -83,7 +83,7 @@ Setup_Keyboard::Setup_Keyboard():
     mKeyList->addActionListener(this);
     mKeyList->setFont(monoFont);
 
-    ScrollArea *scrollArea = new ScrollArea(mKeyList);
+    auto *scrollArea = new ScrollArea(mKeyList);
     scrollArea->setHorizontalScrollPolicy(gcn::ScrollArea::SHOW_NEVER);
 
     mAssignKeyButton = new Button(_("Assign"), "assign", this);
diff --git a/src/gui/setup_keyboard.h b/src/gui/setup_keyboard.h
index 14eee5b9..1ecb5ea3 100644
--- a/src/gui/setup_keyboard.h
+++ b/src/gui/setup_keyboard.h
@@ -36,12 +36,12 @@ class Setup_Keyboard : public SetupTab, public gcn::ActionListener
     public:
         Setup_Keyboard();
 
-        ~Setup_Keyboard();
+        ~Setup_Keyboard() override;
 
-        void apply();
-        void cancel();
+        void apply() override;
+        void cancel() override;
 
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
         /**
          * Get an update on the assigned key.
diff --git a/src/gui/setup_players.cpp b/src/gui/setup_players.cpp
index ad50baad..a3b0ef53 100644
--- a/src/gui/setup_players.cpp
+++ b/src/gui/setup_players.cpp
@@ -70,14 +70,14 @@ static const char *RELATION_NAMES[PlayerRelation::RELATIONS_NR] =
 class PlayerRelationListModel : public gcn::ListModel
 {
 public:
-    virtual ~PlayerRelationListModel() { }
+    ~PlayerRelationListModel() override { }
 
-    virtual int getNumberOfElements()
+    int getNumberOfElements() override
     {
         return PlayerRelation::RELATIONS_NR;
     }
 
-    virtual std::string getElementAt(int i)
+    std::string getElementAt(int i) override
     {
         if (i >= getNumberOfElements() || i < 0)
             return "";
@@ -89,35 +89,35 @@ class PlayerTableModel : public TableModel
 {
 public:
     PlayerTableModel() :
-        mPlayers(NULL),
+        mPlayers(nullptr),
         mListModel(new PlayerRelationListModel)
     {
         playerRelationsUpdated();
     }
 
-    virtual ~PlayerTableModel()
+    ~PlayerTableModel() override
     {
         freeWidgets();
         delete mListModel;
         delete mPlayers;
     }
 
-    virtual int getRows() const
+    int getRows() const override
     {
         return mPlayers->size();
     }
 
-    virtual int getColumns() const
+    int getColumns() const override
     {
         return COLUMNS_NR;
     }
 
-    virtual int getRowHeight() const
+    int getRowHeight() const override
     {
         return ROW_HEIGHT;
     }
 
-    virtual int getColumnWidth(int index) const
+    int getColumnWidth(int index) const override
     {
         if (index == NAME_COLUMN)
             return NAME_COLUMN_WIDTH;
@@ -151,7 +151,7 @@ public:
 
     virtual void updateModelInRow(int row)
     {
-        gcn::DropDown *choicebox = static_cast<gcn::DropDown *>(
+        auto *choicebox = static_cast<gcn::DropDown *>(
                                    getElementAt(row, RELATION_CHOICE_COLUMN));
         player_relations.setRelation(getPlayerAt(row),
                                    static_cast<PlayerRelation::Relation>(
@@ -159,7 +159,7 @@ public:
     }
 
 
-    virtual gcn::Widget *getElementAt(int row, int column) const
+    gcn::Widget *getElementAt(int row, int column) const override
     {
         return mWidgets[WIDGET_AT(row, column)];
     }
@@ -168,7 +168,7 @@ public:
     {
         if (mPlayers)
             delete mPlayers;
-        mPlayers = NULL;
+        mPlayers = nullptr;
 
         delete_all(mWidgets);
         mWidgets.clear();
@@ -191,14 +191,14 @@ protected:
 class IgnoreChoicesListModel : public gcn::ListModel
 {
 public:
-    virtual ~IgnoreChoicesListModel() { }
+    ~IgnoreChoicesListModel() override { }
 
-    virtual int getNumberOfElements()
+    int getNumberOfElements() override
     {
         return player_relations.getPlayerIgnoreStrategies()->size();
     }
 
-    virtual std::string getElementAt(int i)
+    std::string getElementAt(int i) override
     {
         if (i >= getNumberOfElements())
             return _("???");
diff --git a/src/gui/setup_players.h b/src/gui/setup_players.h
index ed2361b9..90663029 100644
--- a/src/gui/setup_players.h
+++ b/src/gui/setup_players.h
@@ -39,16 +39,16 @@ class Setup_Players : public SetupTab,
 {
 public:
     Setup_Players();
-    virtual ~Setup_Players();
+    ~Setup_Players() override;
 
-    void apply();
-    void cancel();
+    void apply() override;
+    void cancel() override;
 
     void reset();
 
-    void action(const gcn::ActionEvent &event);
+    void action(const gcn::ActionEvent &event) override;
 
-    virtual void updatedPlayer(const std::string &name);
+    void updatedPlayer(const std::string &name) override;
 
 private:
     StaticTableModel *mPlayerTableTitleModel;
diff --git a/src/gui/setup_video.cpp b/src/gui/setup_video.cpp
index 709a7685..2d4835ec 100644
--- a/src/gui/setup_video.cpp
+++ b/src/gui/setup_video.cpp
@@ -61,17 +61,17 @@ class ModeListModel : public gcn::ListModel
     public:
         ModeListModel();
 
-        virtual ~ModeListModel() { }
+        ~ModeListModel() override { }
 
         /**
          * Returns the number of elements in container.
          */
-        int getNumberOfElements() { return mVideoModes.size(); }
+        int getNumberOfElements() override { return mVideoModes.size(); }
 
         /**
          * Returns element from container.
          */
-        std::string getElementAt(int i) { return mVideoModes[i]; }
+        std::string getElementAt(int i) override { return mVideoModes[i]; }
 
         /**
          * Returns the index corresponding to the given video mode.
@@ -173,9 +173,9 @@ Setup_Video::Setup_Video():
 {
     setName(_("Video"));
 
-    Spacer *space = new Spacer(0,10);
+    auto *space = new Spacer(0,10);
 
-    ScrollArea *scrollArea = new ScrollArea(mModeList);
+    auto *scrollArea = new ScrollArea(mModeList);
     scrollArea->setHorizontalScrollPolicy(gcn::ScrollArea::SHOW_NEVER);
     scrollArea->setSize(100, 200);
 
diff --git a/src/gui/setup_video.h b/src/gui/setup_video.h
index 7002a936..1352aa53 100644
--- a/src/gui/setup_video.h
+++ b/src/gui/setup_video.h
@@ -37,12 +37,12 @@ class Setup_Video : public SetupTab, public gcn::ActionListener,
 {
     public:
         Setup_Video();
-        ~Setup_Video();
+        ~Setup_Video() override;
 
-        void apply();
-        void cancel();
+        void apply() override;
+        void cancel() override;
 
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
         static const char *overlayDetailToString(int detail = -1);
 
diff --git a/src/gui/shortcutwindow.h b/src/gui/shortcutwindow.h
index f33ddf50..6fdafcb8 100644
--- a/src/gui/shortcutwindow.h
+++ b/src/gui/shortcutwindow.h
@@ -37,7 +37,7 @@ class ShortcutWindow : public Window
     public:
         ShortcutWindow(const std::string &title, ShortcutContainer *content);
 
-        ~ShortcutWindow();
+        ~ShortcutWindow() override;
 
     private:
         ShortcutWindow();
diff --git a/src/gui/skilldialog.cpp b/src/gui/skilldialog.cpp
index a0c3e46b..09bde167 100644
--- a/src/gui/skilldialog.cpp
+++ b/src/gui/skilldialog.cpp
@@ -77,7 +77,7 @@ struct SkillInfo
     gcn::Color color;
 
     SkillInfo() :
-        icon(NULL)
+        icon(nullptr)
     {}
 
     ~SkillInfo()
@@ -106,18 +106,18 @@ struct SkillInfo
     void draw(Graphics *graphics, int y, int width);
 };
 
-typedef std::vector<SkillInfo*> SkillList;
+using SkillList = std::vector<SkillInfo *>;
 
 class SkillModel : public gcn::ListModel
 {
 public:
-    int getNumberOfElements()
+    int getNumberOfElements() override
     { return mVisibleSkills.size(); }
 
     SkillInfo *getSkillAt(int i) const
     { return mVisibleSkills.at(i); }
 
-    std::string getElementAt(int i)
+    std::string getElementAt(int i) override
     { return getSkillAt(i)->name; }
 
     void updateVisibilities();
@@ -141,21 +141,21 @@ public:
     {
         const int selected = getSelected();
         if (selected < 0 || selected > mListModel->getNumberOfElements())
-            return 0;
+            return nullptr;
 
         return static_cast<SkillModel*>(mListModel)->getSkillAt(selected);
     }
 
-    void draw(gcn::Graphics *gcnGraphics)
+    void draw(gcn::Graphics *gcnGraphics) override
     {
         if (!mListModel)
             return;
 
-        SkillModel* model = static_cast<SkillModel*>(mListModel);
+        auto* model = static_cast<SkillModel*>(mListModel);
 
         updateAlpha();
 
-        Graphics *graphics = static_cast<Graphics*>(gcnGraphics);
+        auto *graphics = static_cast<Graphics*>(gcnGraphics);
 
         graphics->setColor(Theme::getThemeColor(Theme::HIGHLIGHT,
                                                 (int) (mAlpha * 255.0f)));
@@ -183,7 +183,7 @@ public:
         }
     }
 
-    unsigned int getRowHeight() const { return 34; }
+    unsigned int getRowHeight() const override { return 34; }
 };
 
 class SkillTab : public Tab
@@ -195,10 +195,10 @@ public:
         setCaption(name);
     }
 
-    ~SkillTab()
+    ~SkillTab() override
     {
         delete mListBox;
-        mListBox = 0;
+        mListBox = nullptr;
     }
 
     SkillInfo *getSelectedInfo()
@@ -245,7 +245,7 @@ void SkillDialog::action(const gcn::ActionEvent &event)
 {
     if (event.getId() == "inc")
     {
-        SkillTab *tab = static_cast<SkillTab*>(mTabs->getSelectedTab());
+        auto *tab = static_cast<SkillTab*>(mTabs->getSelectedTab());
         if (SkillInfo *info = tab->getSelectedInfo())
             Net::getPlayerHandler()->increaseSkill(info->id);
     }
@@ -257,7 +257,7 @@ void SkillDialog::action(const gcn::ActionEvent &event)
 
 std::string SkillDialog::update(int id)
 {
-    SkillMap::iterator i = mSkills.find(id);
+    auto i = mSkills.find(id);
 
     if (i != mSkills.end())
     {
@@ -275,7 +275,7 @@ void SkillDialog::update()
                                        PlayerInfo::getAttribute(SKILL_POINTS)));
     mPointsLabel->adjustSize();
 
-    for (SkillMap::iterator it = mSkills.begin(); it != mSkills.end(); it++)
+    for (auto it = mSkills.begin(); it != mSkills.end(); it++)
     {
         (*it).second->update();
     }
@@ -292,7 +292,7 @@ void SkillDialog::event(Event::Channel channel, const Event &event)
     }
     else if (event.getType() == Event::UpdateStat)
     {
-        SkillMap::iterator it = mSkills.find(event.getInt("id"));
+        auto it = mSkills.find(event.getInt("id"));
         if (it != mSkills.end())
             it->second->update();
     }
@@ -336,8 +336,8 @@ void SkillDialog::loadSkills()
 
         if (Net::getNetworkType() == ServerInfo::TMWATHENA)
         {
-            SkillModel *model = new SkillModel();
-            SkillInfo *skill = new SkillInfo;
+            auto *model = new SkillModel();
+            auto *skill = new SkillInfo;
             skill->id = 1;
             skill->name = "basic";
             skill->setIcon("");
@@ -374,7 +374,7 @@ void SkillDialog::loadSkills()
             setCount++;
             setName = XML::getProperty(set, "name", strprintf(_("Skill Set %d"), setCount));
 
-            SkillModel *model = new SkillModel();
+            auto *model = new SkillModel();
 
             for_each_xml_child_node(node, set)
             {
@@ -384,7 +384,7 @@ void SkillDialog::loadSkills()
                     std::string name = XML::getProperty(node, "name", strprintf(_("Skill %d"), id));
                     std::string icon = XML::getProperty(node, "icon", "");
 
-                    SkillInfo *skill = new SkillInfo;
+                    auto *skill = new SkillInfo;
                     skill->id = id;
                     skill->name = name;
                     skill->setIcon(icon);
@@ -417,7 +417,7 @@ void SkillDialog::loadSkills()
 
 void SkillDialog::setModifiable(int id, bool modifiable)
 {
-    SkillMap::iterator it = mSkills.find(id);
+    auto it = mSkills.find(id);
 
     if (it != mSkills.end())
     {
@@ -431,7 +431,7 @@ void SkillModel::updateVisibilities()
 {
     mVisibleSkills.clear();
 
-    for (SkillList::iterator it = mSkills.begin(); it != mSkills.end(); it++)
+    for (auto it = mSkills.begin(); it != mSkills.end(); it++)
     {
         if ((*it)->visible)
         {
diff --git a/src/gui/skilldialog.h b/src/gui/skilldialog.h
index 8487c1ae..ebf29ff8 100644
--- a/src/gui/skilldialog.h
+++ b/src/gui/skilldialog.h
@@ -47,14 +47,14 @@ class SkillDialog : public Window, public gcn::ActionListener, public EventListe
     public:
         SkillDialog();
 
-        ~SkillDialog();
+        ~SkillDialog() override;
 
-        void event(Event::Channel channel, const Event &event);
+        void event(Event::Channel channel, const Event &event) override;
 
         /**
          * Called when receiving actions from widget.
          */
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
         /**
          * Update the given skill's display
@@ -75,7 +75,7 @@ class SkillDialog : public Window, public gcn::ActionListener, public EventListe
         bool hasSkills() { return !mSkills.empty(); }
 
     private:
-        typedef std::map<int, SkillInfo*> SkillMap;
+        using SkillMap = std::map<int, SkillInfo *>;
         SkillMap mSkills;
         TabbedArea *mTabs;
         Label *mPointsLabel;
diff --git a/src/gui/socialwindow.cpp b/src/gui/socialwindow.cpp
index 437f9d01..d58d12ad 100644
--- a/src/gui/socialwindow.cpp
+++ b/src/gui/socialwindow.cpp
@@ -54,25 +54,25 @@ protected:
     friend class SocialWindow;
 
     SocialTab():
-            mInviteDialog(NULL),
-            mConfirmDialog(NULL)
+            mInviteDialog(nullptr),
+            mConfirmDialog(nullptr)
     {}
 
-    virtual ~SocialTab()
+    ~SocialTab() override
     {
         // Cleanup dialogs
         if (mInviteDialog)
         {
             mInviteDialog->close();
             mInviteDialog->scheduleDelete();
-            mInviteDialog = NULL;
+            mInviteDialog = nullptr;
         }
 
         if (mConfirmDialog)
         {
             mConfirmDialog->close();
             mConfirmDialog->scheduleDelete();
-            mConfirmDialog = NULL;
+            mConfirmDialog = nullptr;
         }
     }
 
@@ -103,15 +103,15 @@ public:
         mScroll->setVerticalScrollPolicy(gcn::ScrollArea::SHOW_ALWAYS);
     }
 
-    ~GuildTab()
+    ~GuildTab() override
     {
         delete mList;
-        mList = 0;
+        mList = nullptr;
         delete mScroll;
-        mScroll = 0;
+        mScroll = nullptr;
     }
 
-    void action(const gcn::ActionEvent &event)
+    void action(const gcn::ActionEvent &event) override
     {
         if (event.getId() == "do invite")
         {
@@ -124,27 +124,27 @@ public:
                               name.c_str(),
                               mGuild->getName().c_str()))
             }
-            mInviteDialog = NULL;
+            mInviteDialog = nullptr;
         }
         else if (event.getId() == "~do invite")
         {
-            mInviteDialog = NULL;
+            mInviteDialog = nullptr;
         }
         else if (event.getId() == "yes")
         {
             Net::getGuildHandler()->leave(mGuild->getId());
             SERVER_NOTICE(strprintf(_("Guild %s quit requested."),
                                         mGuild->getName().c_str()))
-            mConfirmDialog = NULL;
+            mConfirmDialog = nullptr;
         }
         else if (event.getId() == "no")
         {
-            mConfirmDialog = NULL;
+            mConfirmDialog = nullptr;
         }
     }
 
 protected:
-    void invite()
+    void invite() override
     {
         // TODO - Give feedback on whether the invite succeeded
         mInviteDialog = new TextDialog(_("Member Invite to Guild"),
@@ -155,7 +155,7 @@ protected:
         mInviteDialog->addActionListener(this);
     }
 
-    void leave()
+    void leave() override
     {
         mConfirmDialog = new ConfirmDialog(_("Leave Guild?"),
                        strprintf(_("Are you sure you want to leave guild %s?"),
@@ -186,15 +186,15 @@ public:
         mScroll->setVerticalScrollPolicy(gcn::ScrollArea::SHOW_AUTO);
     }
 
-    ~PartyTab()
+    ~PartyTab() override
     {
         delete mList;
-        mList = 0;
+        mList = nullptr;
         delete mScroll;
-        mScroll = 0;
+        mScroll = nullptr;
     }
 
-    void action(const gcn::ActionEvent &event)
+    void action(const gcn::ActionEvent &event) override
     {
         if (event.getId() == "do invite")
         {
@@ -203,27 +203,27 @@ public:
             if (!name.empty())
                 SERVER_NOTICE(strprintf(_("Invited user %s to party."),
                               name.c_str()))
-            mInviteDialog = NULL;
+            mInviteDialog = nullptr;
         }
         else if (event.getId() == "~do invite")
         {
-            mInviteDialog = NULL;
+            mInviteDialog = nullptr;
         }
         else if (event.getId() == "yes")
         {
             Net::getPartyHandler()->leave();
             SERVER_NOTICE(strprintf(_("Party %s quit requested."),
                                         mParty->getName().c_str()))
-            mConfirmDialog = NULL;
+            mConfirmDialog = nullptr;
         }
         else if (event.getId() == "no")
         {
-            mConfirmDialog = NULL;
+            mConfirmDialog = nullptr;
         }
     }
 
 protected:
-    void invite()
+    void invite() override
     {
         // TODO - Give feedback on whether the invite succeeded
         mInviteDialog = new TextDialog(_("Member Invite to Party"),
@@ -234,7 +234,7 @@ protected:
         mInviteDialog->addActionListener(this);
     }
 
-    void leave()
+    void leave() override
     {
         mConfirmDialog = new ConfirmDialog(_("Leave Party?"),
                        strprintf(_("Are you sure you want to leave party %s?"),
@@ -277,7 +277,7 @@ public:
                        mBrowserBox->getHeight() + 8);
     }
 
-    void handleLink(const std::string &link)
+    void handleLink(const std::string &link) override
     {
         if (link == "guild")
         {
@@ -308,8 +308,8 @@ private:
 SocialWindow::SocialWindow() :
     Window(_("Social")),
     mGuildInvited(0),
-    mGuildAcceptDialog(NULL),
-    mPartyAcceptDialog(NULL)
+    mGuildAcceptDialog(nullptr),
+    mPartyAcceptDialog(nullptr)
 {
     setWindowName("Social");
     setVisible(false);
@@ -334,7 +334,7 @@ SocialWindow::SocialWindow() :
     place(2, 0, mLeaveButton);
     place(0, 1, mTabs, 4, 4);
 
-    widgetResized(NULL);
+    widgetResized(nullptr);
 
     mCreatePopup = new CreatePopup();
 
@@ -353,7 +353,7 @@ SocialWindow::~SocialWindow()
     {
         mGuildAcceptDialog->close();
         mGuildAcceptDialog->scheduleDelete();
-        mGuildAcceptDialog = NULL;
+        mGuildAcceptDialog = nullptr;
 
         mGuildInvited = 0;
     }
@@ -362,7 +362,7 @@ SocialWindow::~SocialWindow()
     {
         mPartyAcceptDialog->close();
         mPartyAcceptDialog->scheduleDelete();
-        mPartyAcceptDialog = NULL;
+        mPartyAcceptDialog = nullptr;
 
         mPartyInviter = "";
     }
@@ -374,7 +374,7 @@ bool SocialWindow::addTab(Guild *guild)
     if (mGuilds.find(guild) != mGuilds.end())
         return false;
 
-    GuildTab *tab = new GuildTab(guild);
+    auto *tab = new GuildTab(guild);
     mGuilds[guild] = tab;
 
     mTabs->addTab(tab, tab->mScroll);
@@ -386,7 +386,7 @@ bool SocialWindow::addTab(Guild *guild)
 
 bool SocialWindow::removeTab(Guild *guild)
 {
-    GuildMap::iterator it = mGuilds.find(guild);
+    auto it = mGuilds.find(guild);
     if (it == mGuilds.end())
         return false;
 
@@ -404,7 +404,7 @@ bool SocialWindow::addTab(Party *party)
     if (mParties.find(party) != mParties.end())
         return false;
 
-    PartyTab *tab = new PartyTab(party);
+    auto *tab = new PartyTab(party);
     mParties[party] = tab;
 
     mTabs->addTab(tab, tab->mScroll);
@@ -416,7 +416,7 @@ bool SocialWindow::addTab(Party *party)
 
 bool SocialWindow::removeTab(Party *party)
 {
-    PartyMap::iterator it = mParties.find(party);
+    auto it = mParties.find(party);
     if (it == mParties.end())
         return false;
 
@@ -450,7 +450,7 @@ void SocialWindow::action(const gcn::ActionEvent &event)
         }
 
         mPartyInviter = "";
-        mPartyAcceptDialog = NULL;
+        mPartyAcceptDialog = nullptr;
     }
     else if (event.getSource() == mGuildAcceptDialog)
     {
@@ -467,7 +467,7 @@ void SocialWindow::action(const gcn::ActionEvent &event)
         }
 
         mGuildInvited = 0;
-        mGuildAcceptDialog = NULL;
+        mGuildAcceptDialog = nullptr;
     }
     else if (event.getId() == "create")
     {
@@ -501,11 +501,11 @@ void SocialWindow::action(const gcn::ActionEvent &event)
                                     name.c_str()));
         }
 
-        mGuildCreateDialog = NULL;
+        mGuildCreateDialog = nullptr;
     }
     else if (event.getId() == "~create guild")
     {
-        mGuildCreateDialog = NULL;
+        mGuildCreateDialog = nullptr;
     }
     else if (event.getId() == "create party")
     {
@@ -524,11 +524,11 @@ void SocialWindow::action(const gcn::ActionEvent &event)
                                     name.c_str()));
         }
 
-        mPartyCreateDialog = NULL;
+        mPartyCreateDialog = nullptr;
     }
     else if (event.getId() == "~create party")
     {
-        mPartyCreateDialog = NULL;
+        mPartyCreateDialog = nullptr;
     }
 }
 
diff --git a/src/gui/socialwindow.h b/src/gui/socialwindow.h
index 0964c999..495d9b54 100644
--- a/src/gui/socialwindow.h
+++ b/src/gui/socialwindow.h
@@ -49,7 +49,7 @@ class SocialWindow : public Window, gcn::ActionListener
 public:
     SocialWindow();
 
-    ~SocialWindow();
+    ~SocialWindow() override;
 
     bool addTab(Guild *guild);
 
@@ -62,7 +62,7 @@ public:
     /**
      * Handle events.
      */
-    void action(const gcn::ActionEvent &event);
+    void action(const gcn::ActionEvent &event) override;
 
     void showGuildInvite(const std::string &guildName, const int guildId,
                          const std::string &inviterName);
@@ -87,10 +87,10 @@ protected:
     ConfirmDialog *mPartyAcceptDialog;
     TextDialog *mPartyCreateDialog;
 
-    typedef std::map<Guild*, SocialTab*> GuildMap;
+    using GuildMap = std::map<Guild *, SocialTab *>;
     GuildMap mGuilds;
 
-    typedef std::map<Party*, SocialTab*> PartyMap;
+    using PartyMap = std::map<Party *, SocialTab *>;
     PartyMap mParties;
 
     CreatePopup *mCreatePopup;
diff --git a/src/gui/specialswindow.cpp b/src/gui/specialswindow.cpp
index ac1f460b..d114d6e3 100644
--- a/src/gui/specialswindow.cpp
+++ b/src/gui/specialswindow.cpp
@@ -94,7 +94,7 @@ void SpecialsWindow::action(const gcn::ActionEvent &event)
 {
     if (event.getId() == "use")
     {
-        SpecialEntry *disp = dynamic_cast<SpecialEntry*>(event.getSource()->getParent());
+        auto *disp = dynamic_cast<SpecialEntry*>(event.getSource()->getParent());
 
         if (disp)
         {
@@ -127,10 +127,10 @@ void SpecialsWindow::draw(gcn::Graphics *graphics)
     bool foundNew = false;
     unsigned int found = 0; // number of entries in specialData which match mEntries
 
-    for (std::map<int, Special>::iterator it = specialData.begin();
+    for (auto it = specialData.begin();
          it != specialData.end(); ++it)
     {
-        std::map<int, SpecialEntry *>::iterator e = mEntries.find(it->first);
+        auto e = mEntries.find(it->first);
         if (e == mEntries.end())
         {
             // found a new special - abort update and rebuild from scratch
@@ -158,7 +158,7 @@ void SpecialsWindow::rebuild(const std::map<int, Special> &specialData)
     mEntries.clear();
     int vPos = 0; //vertical position of next placed element
 
-    for (std::map<int, Special>::const_iterator it = specialData.begin();
+    for (auto it = specialData.begin();
          it != specialData.end(); ++it)
     {
         logger->log("Updating special GUI for %d", it->first);
@@ -168,7 +168,7 @@ void SpecialsWindow::rebuild(const std::map<int, Special> &specialData)
         {
             info->rechargeCurrent = it->second.currentMana;
             info->rechargeNeeded = it->second.neededMana;
-            SpecialEntry* entry = new SpecialEntry(info);
+            auto* entry = new SpecialEntry(info);
             entry->setPosition(0, vPos);
             vPos += entry->getHeight() + 3;
             add(entry);
@@ -184,10 +184,10 @@ void SpecialsWindow::rebuild(const std::map<int, Special> &specialData)
 
 SpecialEntry::SpecialEntry(SpecialInfo *info) :
     mInfo(info),
-    mIcon(NULL),
-    mLevelLabel(NULL),
-    mUse(NULL),
-    mRechargeBar(NULL)
+    mIcon(nullptr),
+    mLevelLabel(nullptr),
+    mUse(nullptr),
+    mRechargeBar(nullptr)
 {
     setSize(SPECIALS_WIDTH, SPECIALS_HEIGHT);
 
diff --git a/src/gui/specialswindow.h b/src/gui/specialswindow.h
index 75ad3ef0..1da05c5c 100644
--- a/src/gui/specialswindow.h
+++ b/src/gui/specialswindow.h
@@ -38,14 +38,14 @@ class SpecialsWindow : public Window, public gcn::ActionListener
     public:
         SpecialsWindow();
 
-        ~SpecialsWindow();
+        ~SpecialsWindow() override;
 
         /**
          * Called when receiving actions from widget.
          */
-        void action(const gcn::ActionEvent &actionEvent);
+        void action(const gcn::ActionEvent &actionEvent) override;
 
-        void draw(gcn::Graphics *graphics);
+        void draw(gcn::Graphics *graphics) override;
 
         bool hasSpecials() const
         { return !mEntries.empty(); }
diff --git a/src/gui/statuswindow.cpp b/src/gui/statuswindow.cpp
index 430d47ed..eee832ec 100644
--- a/src/gui/statuswindow.cpp
+++ b/src/gui/statuswindow.cpp
@@ -54,7 +54,7 @@ class AttrDisplay : public Container
             DERIVED, CHANGEABLE, UNKNOWN
         };
 
-        ~AttrDisplay();
+        ~AttrDisplay() override;
 
         virtual std::string update();
         virtual Type getType() { return UNKNOWN; }
@@ -73,19 +73,19 @@ class DerDisplay : public AttrDisplay
 {
     public:
         DerDisplay(int id, const std::string &name);
-        virtual Type getType() { return DERIVED; }
+        Type getType() override { return DERIVED; }
 };
 
 class ChangeDisplay : public AttrDisplay, gcn::ActionListener
 {
     public:
         ChangeDisplay(int id, const std::string &name);
-        std::string update();
-        virtual Type getType() { return CHANGEABLE; }
+        std::string update() override;
+        Type getType() override { return CHANGEABLE; }
         void setPointsNeeded(int needed);
 
     private:
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
         int mNeeded;
 
@@ -284,7 +284,7 @@ void StatusWindow::event(Event::Channel channel,
         }
         else
         {
-            Attrs::iterator it = mAttrs.find(id);
+            auto it = mAttrs.find(id);
             if (it != mAttrs.end())
             {
                 it->second->update();
@@ -301,7 +301,7 @@ void StatusWindow::event(Event::Channel channel,
 
 void StatusWindow::updateAttrs()
 {
-    for (Attrs::iterator it = mAttrs.begin(); it != mAttrs.end(); it++)
+    for (auto it = mAttrs.begin(); it != mAttrs.end(); it++)
     {
         it->second->update();
     }
@@ -309,7 +309,7 @@ void StatusWindow::updateAttrs()
 
 void StatusWindow::setPointsNeeded(int id, int needed)
 {
-    Attrs::iterator it = mAttrs.find(id);
+    auto it = mAttrs.find(id);
 
     if (it != mAttrs.end())
     {
@@ -481,7 +481,7 @@ ChangeDisplay::ChangeDisplay(int id, const std::string &name):
     }
     else
     {
-        mDec = 0;
+        mDec = nullptr;
     }
 
     update();
diff --git a/src/gui/statuswindow.h b/src/gui/statuswindow.h
index f866c56d..d1350bec 100644
--- a/src/gui/statuswindow.h
+++ b/src/gui/statuswindow.h
@@ -45,7 +45,7 @@ class StatusWindow : public Window, public EventListener
     public:
         StatusWindow();
 
-        void event(Event::Channel channel, const Event &event);
+        void event(Event::Channel channel, const Event &event) override;
 
         void updateAttrs();
 
@@ -81,7 +81,7 @@ class StatusWindow : public Window, public EventListener
         gcn::Label *mCharacterPointsLabel;
         gcn::Label *mCorrectionPointsLabel;
 
-        typedef std::map<int, AttrDisplay*> Attrs;
+        using Attrs = std::map<int, AttrDisplay *>;
         Attrs mAttrs;
 };
 
diff --git a/src/gui/textdialog.h b/src/gui/textdialog.h
index 51cb3eba..66ab3e53 100644
--- a/src/gui/textdialog.h
+++ b/src/gui/textdialog.h
@@ -37,14 +37,14 @@ class TextDialog : public Window, public gcn::ActionListener
 {
 public:
     TextDialog(const std::string &title, const std::string &msg,
-               Window *parent = NULL, bool autoCompleteEnabled = false);
+               Window *parent = nullptr, bool autoCompleteEnabled = false);
 
-    ~TextDialog();
+    ~TextDialog() override;
 
     /**
      * Called when receiving actions from the widgets.
      */
-    void action(const gcn::ActionEvent &event);
+    void action(const gcn::ActionEvent &event) override;
 
     /**
      * Get the text in the textfield
diff --git a/src/gui/textpopup.h b/src/gui/textpopup.h
index 374435fb..cda8d14a 100644
--- a/src/gui/textpopup.h
+++ b/src/gui/textpopup.h
@@ -38,7 +38,7 @@ class TextPopup : public Popup
     public:
         TextPopup();
 
-        ~TextPopup();
+        ~TextPopup() override;
 
         /**
          * Sets the text to be displayed.
@@ -51,7 +51,7 @@ class TextPopup : public Popup
          */
         void show(int x, int y, const std::string &str1, const std::string &str2);
 
-        void mouseMoved(gcn::MouseEvent &mouseEvent);
+        void mouseMoved(gcn::MouseEvent &mouseEvent) override;
 
     private:
         gcn::Label *mText1;
diff --git a/src/gui/tradewindow.cpp b/src/gui/tradewindow.cpp
index ae38f023..cf237d5a 100644
--- a/src/gui/tradewindow.cpp
+++ b/src/gui/tradewindow.cpp
@@ -86,13 +86,13 @@ TradeWindow::TradeWindow():
     mMyItemContainer = new ItemContainer(mMyInventory.get());
     mMyItemContainer->addSelectionListener(this);
 
-    ScrollArea *myScroll = new ScrollArea(mMyItemContainer);
+    auto *myScroll = new ScrollArea(mMyItemContainer);
     myScroll->setHorizontalScrollPolicy(gcn::ScrollArea::SHOW_NEVER);
 
     mPartnerItemContainer = new ItemContainer(mPartnerInventory.get());
     mPartnerItemContainer->addSelectionListener(this);
 
-    ScrollArea *partnerScroll = new ScrollArea(mPartnerItemContainer);
+    auto *partnerScroll = new ScrollArea(mPartnerItemContainer);
     partnerScroll->setHorizontalScrollPolicy(gcn::ScrollArea::SHOW_NEVER);
 
     mMoneyLabel = new Label(strprintf(_("You get %s"), ""));
diff --git a/src/gui/tradewindow.h b/src/gui/tradewindow.h
index 20da4574..cf2bb70e 100644
--- a/src/gui/tradewindow.h
+++ b/src/gui/tradewindow.h
@@ -44,7 +44,7 @@ class TradeWindow : public Window, gcn::ActionListener, gcn::SelectionListener
     public:
         TradeWindow();
 
-        ~TradeWindow();
+        ~TradeWindow() override;
 
         /**
          * Displays expected money in the trade window.
@@ -90,18 +90,18 @@ class TradeWindow : public Window, gcn::ActionListener, gcn::SelectionListener
          * Updates the labels and makes sure only one item is selected in
          * either my inventory or partner inventory.
          */
-        void valueChanged(const gcn::SelectionEvent &event);
+        void valueChanged(const gcn::SelectionEvent &event) override;
 
         /**
          * Called when receiving actions from the widgets.
          */
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
         /**
          * Closes the Trade Window, as well as telling the server that the
          * window has been closed.
          */
-        void close();
+        void close() override;
 
     private:
         enum Status
@@ -117,7 +117,7 @@ class TradeWindow : public Window, gcn::ActionListener, gcn::SelectionListener
          */
         void setStatus(Status s);
 
-        typedef const std::unique_ptr<Inventory> InventoryPtr;
+        using InventoryPtr = const std::unique_ptr<Inventory>;
         InventoryPtr mMyInventory;
         InventoryPtr mPartnerInventory;
 
diff --git a/src/gui/truetypefont.cpp b/src/gui/truetypefont.cpp
index 443adaa5..76706849 100644
--- a/src/gui/truetypefont.cpp
+++ b/src/gui/truetypefont.cpp
@@ -37,7 +37,7 @@ class TextChunk
 {
     public:
         TextChunk(const std::string &text, const gcn::Color &color) :
-            img(NULL), text(text), color(color)
+            img(nullptr), text(text), color(color)
         {
         }
 
@@ -66,7 +66,7 @@ class TextChunk
 
             if (!surface)
             {
-                img = 0;
+                img = nullptr;
                 return;
             }
 
@@ -80,7 +80,7 @@ class TextChunk
         gcn::Color color;
 };
 
-typedef std::list<TextChunk>::iterator CacheIterator;
+using CacheIterator = std::list<TextChunk>::iterator;
 
 static int fontCounter;
 
@@ -120,7 +120,7 @@ void TrueTypeFont::drawString(gcn::Graphics *graphics,
     if (text.empty())
         return;
 
-    Graphics *g = dynamic_cast<Graphics *>(graphics);
+    auto *g = dynamic_cast<Graphics *>(graphics);
 
     if (!g)
         throw "Not a valid graphics object!";
@@ -137,7 +137,7 @@ void TrueTypeFont::drawString(gcn::Graphics *graphics,
 
     bool found = false;
 
-    for (CacheIterator i = mCache.begin(); i != mCache.end(); ++i)
+    for (auto i = mCache.begin(); i != mCache.end(); ++i)
     {
         if (chunk == (*i))
         {
@@ -166,7 +166,7 @@ void TrueTypeFont::drawString(gcn::Graphics *graphics,
 
 int TrueTypeFont::getWidth(const std::string &text) const
 {
-    for (CacheIterator i = mCache.begin(); i != mCache.end(); i++)
+    for (auto i = mCache.begin(); i != mCache.end(); i++)
     {
         if (i->text == text)
         {
diff --git a/src/gui/truetypefont.h b/src/gui/truetypefont.h
index a01e2a62..d42400d8 100644
--- a/src/gui/truetypefont.h
+++ b/src/gui/truetypefont.h
@@ -52,11 +52,11 @@ class TrueTypeFont : public gcn::Font
          */
         TrueTypeFont(const std::string &filename, int size, int style = 0);
 
-        ~TrueTypeFont();
+        ~TrueTypeFont() override;
 
-        virtual int getWidth(const std::string &text) const;
+        int getWidth(const std::string &text) const override;
 
-        virtual int getHeight() const;
+        int getHeight() const override;
 
         /**
          * Returns the height of a line of text. This is not the visual height
@@ -70,7 +70,7 @@ class TrueTypeFont : public gcn::Font
          */
         void drawString(gcn::Graphics *graphics,
                         const std::string &text,
-                        int x, int y);
+                        int x, int y) override;
 
     private:
         TTF_Font *mFont;
diff --git a/src/gui/unregisterdialog.cpp b/src/gui/unregisterdialog.cpp
index 1d510760..787865ae 100644
--- a/src/gui/unregisterdialog.cpp
+++ b/src/gui/unregisterdialog.cpp
@@ -130,7 +130,7 @@ void UnRegisterDialog::action(const gcn::ActionEvent &event)
         {
             mWrongDataNoticeListener->setTarget(this->mPasswordField);
 
-            OkDialog *dlg = new OkDialog(_("Error"), errorMessage.str());
+            auto *dlg = new OkDialog(_("Error"), errorMessage.str());
             dlg->addActionListener(mWrongDataNoticeListener);
         }
         else
diff --git a/src/gui/unregisterdialog.h b/src/gui/unregisterdialog.h
index 1c926082..c82d7a78 100644
--- a/src/gui/unregisterdialog.h
+++ b/src/gui/unregisterdialog.h
@@ -40,12 +40,12 @@ class UnRegisterDialog : public Window, public gcn::ActionListener
     public:
         UnRegisterDialog(LoginData *loginData);
 
-        ~UnRegisterDialog();
+        ~UnRegisterDialog() override;
 
         /**
          * Called when receiving actions from the widgets.
          */
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
     private:
         gcn::TextField *mPasswordField;
diff --git a/src/gui/updaterwindow.cpp b/src/gui/updaterwindow.cpp
index fe036814..1964c1bf 100644
--- a/src/gui/updaterwindow.cpp
+++ b/src/gui/updaterwindow.cpp
@@ -133,8 +133,8 @@ UpdaterWindow::UpdaterWindow(const std::string &updateHost,
     mDownloadComplete(true),
     mUserCancel(false),
     mDownloadedBytes(0),
-    mMemoryBuffer(NULL),
-    mDownload(NULL),
+    mMemoryBuffer(nullptr),
+    mDownload(nullptr),
     mUpdateIndex(0),
     mLoadUpdates(applyUpdates)
 {
@@ -184,7 +184,7 @@ UpdaterWindow::~UpdaterWindow()
         mDownload->cancel();
 
         delete mDownload;
-        mDownload = 0;
+        mDownload = nullptr;
     }
     free(mMemoryBuffer);
 }
@@ -235,7 +235,7 @@ void UpdaterWindow::keyPressed(gcn::KeyEvent &keyEvent)
 
     if (key.getValue() == Key::ESCAPE)
     {
-        action(gcn::ActionEvent(NULL, mCancelButton->getActionEventId()));
+        action(gcn::ActionEvent(nullptr, mCancelButton->getActionEventId()));
         Client::setState(STATE_WORLD_SELECT);
     }
     else if (key.getValue() == Key::ENTER)
@@ -243,11 +243,11 @@ void UpdaterWindow::keyPressed(gcn::KeyEvent &keyEvent)
         if (mDownloadStatus == UPDATE_COMPLETE ||
                 mDownloadStatus == UPDATE_ERROR)
         {
-            action(gcn::ActionEvent(NULL, mPlayButton->getActionEventId()));
+            action(gcn::ActionEvent(nullptr, mPlayButton->getActionEventId()));
         }
         else
         {
-            action(gcn::ActionEvent(NULL, mCancelButton->getActionEventId()));
+            action(gcn::ActionEvent(nullptr, mCancelButton->getActionEventId()));
         }
     }
 }
@@ -271,12 +271,12 @@ void UpdaterWindow::loadNews()
     while (line)
     {
         mBrowserBox->addRow(line);
-        line = strtok(NULL, "\n");
+        line = strtok(nullptr, "\n");
     }
 
     // Free the memory buffer now that we don't need it anymore
     free(mMemoryBuffer);
-    mMemoryBuffer = NULL;
+    mMemoryBuffer = nullptr;
 
     mScrollArea->setVerticalScrollAmount(0);
 }
@@ -284,7 +284,7 @@ void UpdaterWindow::loadNews()
 int UpdaterWindow::updateProgress(void *ptr, DownloadStatus status,
                                   size_t dt, size_t dn)
 {
-    UpdaterWindow *uw = reinterpret_cast<UpdaterWindow *>(ptr);
+    auto *uw = reinterpret_cast<UpdaterWindow *>(ptr);
 
     if (status == DOWNLOAD_STATUS_COMPLETE)
     {
@@ -320,7 +320,7 @@ int UpdaterWindow::updateProgress(void *ptr, DownloadStatus status,
 
 size_t UpdaterWindow::memoryWrite(void *ptr, size_t size, size_t nmemb, void *stream)
 {
-    UpdaterWindow *uw = reinterpret_cast<UpdaterWindow *>(stream);
+    auto *uw = reinterpret_cast<UpdaterWindow *>(stream);
     size_t totalMem = size * nmemb;
     uw->mMemoryBuffer = (char*) realloc(uw->mMemoryBuffer,
                                         uw->mDownloadedBytes + totalMem);
diff --git a/src/gui/updaterwindow.h b/src/gui/updaterwindow.h
index 95a7600e..faf7a9a5 100644
--- a/src/gui/updaterwindow.h
+++ b/src/gui/updaterwindow.h
@@ -71,7 +71,7 @@ class UpdaterWindow : public Window, public gcn::ActionListener,
                   const std::string &updatesDir,
                   bool applyUpdates);
 
-    ~UpdaterWindow();
+    ~UpdaterWindow() override;
 
     /**
      * Set's progress bar status
@@ -94,11 +94,11 @@ class UpdaterWindow : public Window, public gcn::ActionListener,
      */
     void loadNews();
 
-    void action(const gcn::ActionEvent &event);
+    void action(const gcn::ActionEvent &event) override;
 
-    void keyPressed(gcn::KeyEvent &keyEvent);
+    void keyPressed(gcn::KeyEvent &keyEvent) override;
 
-    void logic();
+    void logic() override;
 
     int updateState;
 
diff --git a/src/gui/viewport.cpp b/src/gui/viewport.cpp
index b4ad1b1d..96a1d79c 100644
--- a/src/gui/viewport.cpp
+++ b/src/gui/viewport.cpp
@@ -48,7 +48,7 @@
 extern volatile int tick_time;
 
 Viewport::Viewport():
-    mMap(0),
+    mMap(nullptr),
     mMouseX(0),
     mMouseY(0),
     mPixelViewX(0.0f),
@@ -56,8 +56,8 @@ Viewport::Viewport():
     mDebugFlags(0),
     mPlayerFollowMouse(false),
     mLocalWalkTime(-1),
-    mHoverBeing(0),
-    mHoverItem(0)
+    mHoverBeing(nullptr),
+    mHoverItem(nullptr)
 {
     setOpaque(false);
     addMouseListener(this);
@@ -109,7 +109,7 @@ void Viewport::draw(gcn::Graphics *gcnGraphics)
         return;
     }
 
-    Graphics *graphics = static_cast<Graphics*>(gcnGraphics);
+    auto *graphics = static_cast<Graphics*>(gcnGraphics);
 
     // Avoid freaking out when tick_time overflows
     if (tick_time < lastTick)
@@ -153,7 +153,7 @@ void Viewport::draw(gcn::Graphics *gcnGraphics)
         }
 
         // manage shake effect
-        for (ShakeEffects::iterator i = mShakeEffects.begin();
+        for (auto i = mShakeEffects.begin();
              i != mShakeEffects.end();
              i++)
         {
@@ -239,13 +239,13 @@ void Viewport::draw(gcn::Graphics *gcnGraphics)
 
     // Draw player names, speech, and emotion sprite as needed
     const ActorSprites &actors = actorSpriteManager->getAll();
-    for (ActorSpritesConstIterator it = actors.begin(), it_end = actors.end();
+    for (auto it = actors.begin(), it_end = actors.end();
          it != it_end; it++)
     {
         if ((*it)->getType() == ActorSprite::FLOOR_ITEM)
             continue;
 
-        Being *b = static_cast<Being*>(*it);
+        auto *b = static_cast<Being*>(*it);
         b->drawSpeech((int) mPixelViewX, (int) mPixelViewY);
     }
 
@@ -256,7 +256,7 @@ void Viewport::draw(gcn::Graphics *gcnGraphics)
         const ActorSprites &actors = actorSpriteManager->getAll();
         for (it = actors.begin(), it_end = actors.end(); it != it_end; ++it)
         {
-            Being *being = dynamic_cast<Being*>(*it);
+            auto *being = dynamic_cast<Being*>(*it);
             if (!being)
                 continue;
 
@@ -310,8 +310,8 @@ void Viewport::_followMouse()
     if (mPlayerFollowMouse && button & SDL_BUTTON(1))
     {
         // We create a mouse event and send it to mouseDragged.
-        const Uint8 *keys = SDL_GetKeyboardState(NULL);
-        gcn::MouseEvent mouseEvent(NULL,
+        const Uint8 *keys = SDL_GetKeyboardState(nullptr);
+        gcn::MouseEvent mouseEvent(nullptr,
                       (keys[SDLK_LSHIFT] || keys[SDLK_RSHIFT]),
                       false,
                       false,
@@ -386,7 +386,7 @@ void Viewport::_drawDebugPath(Graphics *graphics)
     const ActorSprites &actors = actorSpriteManager->getAll();
     for (it = actors.begin(), it_end = actors.end(); it != it_end; it++)
     {
-        Being *being = dynamic_cast<Being*>(*it);
+        auto *being = dynamic_cast<Being*>(*it);
         if (!being)
             continue;
 
@@ -428,7 +428,7 @@ void Viewport::_drawPath(Graphics *graphics, const Path &path,
 {
     graphics->setColor(color);
 
-    for (Path::const_iterator i = path.begin(); i != path.end(); ++i)
+    for (auto i = path.begin(); i != path.end(); ++i)
     {
         int squareX = i->x - (int) mPixelViewX;
         int squareY = i->y - (int) mPixelViewY;
@@ -648,10 +648,10 @@ void Viewport::event(Event::Channel channel, const Event &event)
         ActorSprite *actor = event.getActor("source");
 
         if (mHoverBeing == actor)
-            mHoverBeing = 0;
+            mHoverBeing = nullptr;
 
         if (mHoverItem == actor)
-            mHoverItem = 0;
+            mHoverItem = nullptr;
     }
     else if (channel == Event::ConfigChannel &&
              event.getType() == Event::ConfigOptionChanged)
diff --git a/src/gui/viewport.h b/src/gui/viewport.h
index 0d0f057a..f3f82ce5 100644
--- a/src/gui/viewport.h
+++ b/src/gui/viewport.h
@@ -59,7 +59,7 @@ class Viewport : public WindowContainer, public gcn::MouseListener,
     public:
         Viewport();
 
-        ~Viewport();
+        ~Viewport() override;
 
         /**
          * Sets the map displayed by the viewport.
@@ -69,12 +69,12 @@ class Viewport : public WindowContainer, public gcn::MouseListener,
         /**
          * Draws the viewport.
          */
-        void draw(gcn::Graphics *graphics);
+        void draw(gcn::Graphics *graphics) override;
 
         /**
          * Implements player to keep following mouse.
          */
-        void logic();
+        void logic() override;
 
         /**
          * Sets whether the path debug graphics are shown
@@ -84,22 +84,22 @@ class Viewport : public WindowContainer, public gcn::MouseListener,
         /**
          * Handles mouse press on map.
          */
-        void mousePressed(gcn::MouseEvent &event);
+        void mousePressed(gcn::MouseEvent &event) override;
 
         /**
          * Handles mouse move on map
          */
-        void mouseDragged(gcn::MouseEvent &event);
+        void mouseDragged(gcn::MouseEvent &event) override;
 
         /**
          * Handles mouse button release on map.
          */
-        void mouseReleased(gcn::MouseEvent &event);
+        void mouseReleased(gcn::MouseEvent &event) override;
 
         /**
          * Handles mouse move on map.
          */
-        void mouseMoved(gcn::MouseEvent &event);
+        void mouseMoved(gcn::MouseEvent &event) override;
 
         /**
          * Shows a popup for an item.
@@ -165,7 +165,7 @@ class Viewport : public WindowContainer, public gcn::MouseListener,
         void shakeScreenStop()
         { mShakeEffects.clear(); }
 
-        void event(Event::Channel channel, const Event &event);
+        void event(Event::Channel channel, const Event &event) override;
 
     private:
         /**
@@ -209,7 +209,7 @@ class Viewport : public WindowContainer, public gcn::MouseListener,
             float decay;
             unsigned duration;
         };
-        typedef std::list<ShakeEffect> ShakeEffects;
+        using ShakeEffects = std::list<ShakeEffect>;
         ShakeEffects mShakeEffects;
 
         bool mPlayerFollowMouse;
diff --git a/src/gui/widgets/avatarlistbox.cpp b/src/gui/widgets/avatarlistbox.cpp
index eac7ad13..d397ecfb 100644
--- a/src/gui/widgets/avatarlistbox.cpp
+++ b/src/gui/widgets/avatarlistbox.cpp
@@ -34,8 +34,8 @@
 #include <guichan/font.hpp>
 
 int AvatarListBox::instances = 0;
-Image *AvatarListBox::onlineIcon = 0;
-Image *AvatarListBox::offlineIcon = 0;
+Image *AvatarListBox::onlineIcon = nullptr;
+Image *AvatarListBox::offlineIcon = nullptr;
 
 AvatarListBox::AvatarListBox(AvatarListModel *model):
     ListBox(model)
@@ -67,11 +67,11 @@ void AvatarListBox::draw(gcn::Graphics *gcnGraphics)
     if (!mListModel)
         return;
 
-    AvatarListModel* model = static_cast<AvatarListModel*>(mListModel);
+    auto* model = static_cast<AvatarListModel*>(mListModel);
 
     updateAlpha();
 
-    Graphics *graphics = static_cast<Graphics*>(gcnGraphics);
+    auto *graphics = static_cast<Graphics*>(gcnGraphics);
 
     graphics->setColor(Theme::getThemeColor(Theme::HIGHLIGHT,
                                             (int) (mAlpha * 255.0f)));
diff --git a/src/gui/widgets/avatarlistbox.h b/src/gui/widgets/avatarlistbox.h
index ec6cc6c5..ab402329 100644
--- a/src/gui/widgets/avatarlistbox.h
+++ b/src/gui/widgets/avatarlistbox.h
@@ -36,7 +36,7 @@ class AvatarListModel : public gcn::ListModel
 public:
     virtual Avatar *getAvatarAt(int i) = 0;
 
-    std::string getElementAt(int i)
+    std::string getElementAt(int i) override
     { return getAvatarAt(i)->getName(); }
 };
 
@@ -45,14 +45,14 @@ class AvatarListBox : public ListBox
 public:
     AvatarListBox(AvatarListModel *model);
 
-    ~AvatarListBox();
+    ~AvatarListBox() override;
 
     /**
      * Draws the list box.
      */
-    void draw(gcn::Graphics *gcnGraphics);
+    void draw(gcn::Graphics *gcnGraphics) override;
 
-    void mousePressed(gcn::MouseEvent &event);
+    void mousePressed(gcn::MouseEvent &event) override;
 
 private:
     static int instances;
diff --git a/src/gui/widgets/browserbox.cpp b/src/gui/widgets/browserbox.cpp
index 29847639..d5b853b2 100644
--- a/src/gui/widgets/browserbox.cpp
+++ b/src/gui/widgets/browserbox.cpp
@@ -86,7 +86,7 @@ void BrowserBox::addRow(const std::string &row)
     const int fontHeight = font->getHeight();
 
     int lineHeight = fontHeight;
-    if (TrueTypeFont *ttf = dynamic_cast<TrueTypeFont*>(font))
+    if (auto *ttf = dynamic_cast<TrueTypeFont*>(font))
         lineHeight = ttf->getLineHeight();
 
     // Use links and user defined colors
@@ -185,7 +185,7 @@ void BrowserBox::addRow(const std::string &row)
         int tildeWidth = font->getWidth(tilde);
         int x = 0;
 
-        for (TextRowIterator i = mTextRows.begin(); i != mTextRows.end(); i++)
+        for (auto i = mTextRows.begin(); i != mTextRows.end(); i++)
         {
             std::string row = *i;
             for (unsigned int j = 0; j < row.size(); ++j)
@@ -259,7 +259,7 @@ struct MouseOverLink
 void BrowserBox::mousePressed(gcn::MouseEvent &event)
 {
     if (!mLinkHandler) return;
-    LinkIterator i = find_if(mLinks.begin(), mLinks.end(),
+    auto i = find_if(mLinks.begin(), mLinks.end(),
             MouseOverLink(event.getX(), event.getY()));
 
     if (i != mLinks.end())
@@ -268,7 +268,7 @@ void BrowserBox::mousePressed(gcn::MouseEvent &event)
 
 void BrowserBox::mouseMoved(gcn::MouseEvent &event)
 {
-    LinkIterator i = find_if(mLinks.begin(), mLinks.end(),
+    auto i = find_if(mLinks.begin(), mLinks.end(),
             MouseOverLink(event.getX(), event.getY()));
 
     mSelectedLink = (i != mLinks.end())
@@ -316,7 +316,7 @@ void BrowserBox::draw(gcn::Graphics *graphics)
         }
     }
 
-    for (LinePartIterator i = mLineParts.begin();
+    for (auto i = mLineParts.begin();
         i != mLineParts.end();
         i ++)
     {
@@ -377,7 +377,7 @@ int BrowserBox::calcHeight()
     const int tildeWidth = font->getWidth("~");
 
     int lineHeight = fontHeight;
-    if (TrueTypeFont *ttf = dynamic_cast<TrueTypeFont*>(font))
+    if (auto *ttf = dynamic_cast<TrueTypeFont*>(font))
         lineHeight = ttf->getLineHeight();
 
     gcn::Color selColor = Theme::getThemeColor(Theme::TEXT);
@@ -385,7 +385,7 @@ int BrowserBox::calcHeight()
 
     mLineParts.clear();
 
-    for (TextRowIterator i = mTextRows.begin(); i != mTextRows.end(); i++)
+    for (auto i = mTextRows.begin(); i != mTextRows.end(); i++)
     {
         const std::string row = *(i);
         bool wrapped = false;
diff --git a/src/gui/widgets/browserbox.h b/src/gui/widgets/browserbox.h
index 46af14ab..5f29e72a 100644
--- a/src/gui/widgets/browserbox.h
+++ b/src/gui/widgets/browserbox.h
@@ -74,7 +74,7 @@ class BrowserBox : public gcn::Widget,
     public:
         BrowserBox(unsigned int mode = AUTO_SIZE, bool opaque = true);
 
-        ~BrowserBox();
+        ~BrowserBox() override;
 
         /**
          * Sets the handler for links.
@@ -124,13 +124,13 @@ class BrowserBox : public gcn::Widget,
         /**
          * Handles mouse actions.
          */
-        void mousePressed(gcn::MouseEvent &event);
-        void mouseMoved(gcn::MouseEvent &event);
+        void mousePressed(gcn::MouseEvent &event) override;
+        void mouseMoved(gcn::MouseEvent &event) override;
 
         /**
          * Draws the browser box.
          */
-        void draw(gcn::Graphics *graphics);
+        void draw(gcn::Graphics *graphics) override;
 
         void updateHeight();
 
@@ -176,7 +176,7 @@ class BrowserBox : public gcn::Widget,
             BACKGROUND = 2
         };
 
-        typedef std::list<std::string> TextRows;
+        using TextRows = std::list<std::string>;
 
         TextRows &getRows()
         { return mTextRows; }
@@ -187,15 +187,15 @@ class BrowserBox : public gcn::Widget,
     private:
         int calcHeight();
 
-        typedef TextRows::iterator TextRowIterator;
+        using TextRowIterator = TextRows::iterator;
         TextRows mTextRows;
 
-        typedef std::list<LinePart> LinePartList;
-        typedef LinePartList::iterator LinePartIterator;
+        using LinePartList = std::list<LinePart>;
+        using LinePartIterator = LinePartList::iterator;
         LinePartList mLineParts;
 
-        typedef std::vector<BrowserLink> Links;
-        typedef Links::iterator LinkIterator;
+        using Links = std::vector<BrowserLink>;
+        using LinkIterator = Links::iterator;
         Links mLinks;
 
         LinkHandler *mLinkHandler;
diff --git a/src/gui/widgets/button.cpp b/src/gui/widgets/button.cpp
index 9247f67a..fb0d4cbe 100644
--- a/src/gui/widgets/button.cpp
+++ b/src/gui/widgets/button.cpp
@@ -38,7 +38,7 @@
 int Button::mInstances = 0;
 float Button::mAlpha = 1.0;
 ImageRect *Button::mButton;
-TextPopup *Button::mTextPopup = 0;
+TextPopup *Button::mTextPopup = nullptr;
 
 enum{
     BUTTON_STANDARD,    // 0
@@ -63,7 +63,7 @@ static ButtonData const data[BUTTON_COUNT] = {
 };
 
 Button::Button():
-    mButtonIcon(0)
+    mButtonIcon(nullptr)
 {
     init();
     adjustSize();
@@ -72,7 +72,7 @@ Button::Button():
 Button::Button(const std::string &caption, const std::string &actionEventId,
     gcn::ActionListener *listener):
     gcn::Button(caption),
-    mButtonIcon(0)
+    mButtonIcon(nullptr)
 {
     init();
     setActionEventId(actionEventId);
@@ -127,10 +127,10 @@ void Button::removeButtonIcon(bool adjustButtonSize)
     for (int mode = 0; mode < BUTTON_COUNT; ++mode)
     {
         delete mButtonIcon[mode];
-        mButtonIcon[mode] = 0;
+        mButtonIcon[mode] = nullptr;
     }
     delete[] mButtonIcon;
-    mButtonIcon = 0;
+    mButtonIcon = nullptr;
 
     if (adjustButtonSize)
         adjustSize();
@@ -189,7 +189,7 @@ Button::~Button()
 
         // Remove the popup
         delete mTextPopup;
-        mTextPopup = 0;
+        mTextPopup = nullptr;
     }
     // Don' try to readjust the size when it's about to be deleted.
     removeButtonIcon(false);
diff --git a/src/gui/widgets/button.h b/src/gui/widgets/button.h
index f31c3436..e4a28d80 100644
--- a/src/gui/widgets/button.h
+++ b/src/gui/widgets/button.h
@@ -48,12 +48,12 @@ class Button : public gcn::Button
         Button(const std::string &caption, const std::string &actionEventId,
                gcn::ActionListener *listener);
 
-        ~Button();
+        ~Button() override;
 
         /**
          * Draws the button.
          */
-        void draw(gcn::Graphics *graphics);
+        void draw(gcn::Graphics *graphics) override;
 
         /**
          * Update the alpha value to the button components.
@@ -82,9 +82,9 @@ class Button : public gcn::Button
         void setButtonPopupText(const std::string &text)
         { mPopupText = text; }
 
-        void logic();
-        void mouseMoved(gcn::MouseEvent &event);
-        void mouseExited(gcn::MouseEvent &event);
+        void logic() override;
+        void mouseMoved(gcn::MouseEvent &event) override;
+        void mouseExited(gcn::MouseEvent &event) override;
 
     private:
         void init();
diff --git a/src/gui/widgets/channeltab.h b/src/gui/widgets/channeltab.h
index ad27c4c8..ec8af1cd 100644
--- a/src/gui/widgets/channeltab.h
+++ b/src/gui/widgets/channeltab.h
@@ -35,19 +35,19 @@ class ChannelTab : public ChatTab
 
         Channel *getChannel() const { return mChannel; }
 
-        void showHelp();
+        void showHelp() override;
 
         bool handleCommand(const std::string &type,
-                           const std::string &args);
+                           const std::string &args) override;
 
     protected:
         friend class Channel;
 
         ChannelTab(Channel *channel);
 
-        ~ChannelTab();
+        ~ChannelTab() override;
 
-        void handleInput(const std::string &msg);
+        void handleInput(const std::string &msg) override;
 
     private:
         Channel *mChannel;
diff --git a/src/gui/widgets/chattab.h b/src/gui/widgets/chattab.h
index 200ad55a..3d19a9ad 100644
--- a/src/gui/widgets/chattab.h
+++ b/src/gui/widgets/chattab.h
@@ -38,7 +38,7 @@ class ChatTab : public Tab, public AutoCompleteLister, public EventListener
 {
     public:
         ChatTab(const std::string &name);
-        ~ChatTab();
+        ~ChatTab() override;
 
         /**
          * Adds a line of text to our message list. Parameters:
@@ -98,17 +98,17 @@ class ChatTab : public Tab, public AutoCompleteLister, public EventListener
         { return false; }
 
 
-        void getAutoCompleteList(std::vector<std::string> &names) const;
+        void getAutoCompleteList(std::vector<std::string> &names) const override;
 
         virtual void saveToLogFile(std::string &msg);
 
-        void event(Event::Channel channel, const Event &event);
+        void event(Event::Channel channel, const Event &event) override;
 
     protected:
         friend class ChatWindow;
         friend class WhisperWindow;
 
-        virtual void setCurrent() { setFlash(false); }
+        void setCurrent() override { setFlash(false); }
 
         virtual void handleInput(const std::string &msg);
 
diff --git a/src/gui/widgets/checkbox.h b/src/gui/widgets/checkbox.h
index 62e196c8..6eb53c38 100644
--- a/src/gui/widgets/checkbox.h
+++ b/src/gui/widgets/checkbox.h
@@ -36,12 +36,12 @@ class CheckBox : public gcn::CheckBox
     public:
         CheckBox(const std::string &caption, bool selected = false);
 
-        ~CheckBox();
+        ~CheckBox() override;
 
         /**
          * Draws the caption, then calls drawBox to draw the check box.
          */
-        void draw(gcn::Graphics* graphics);
+        void draw(gcn::Graphics* graphics) override;
 
         /**
          * Update the alpha value to the checkbox components.
@@ -51,17 +51,17 @@ class CheckBox : public gcn::CheckBox
         /**
          * Draws the check box, not the caption.
          */
-        void drawBox(gcn::Graphics* graphics);
+        void drawBox(gcn::Graphics* graphics) override;
 
         /**
          * Called when the mouse enteres the widget area.
          */
-        void mouseEntered(gcn::MouseEvent& event);
+        void mouseEntered(gcn::MouseEvent& event) override;
 
         /**
          * Called when the mouse leaves the widget area.
          */
-        void mouseExited(gcn::MouseEvent& event);
+        void mouseExited(gcn::MouseEvent& event) override;
 
     private:
         static int instances;
diff --git a/src/gui/widgets/container.cpp b/src/gui/widgets/container.cpp
index e1b99af7..74b82f07 100644
--- a/src/gui/widgets/container.cpp
+++ b/src/gui/widgets/container.cpp
@@ -24,7 +24,7 @@
 #include "gui/widgets/layouthelper.h"
 
 Container::Container():
-    mLayoutHelper(0)
+    mLayoutHelper(nullptr)
 {
     setOpaque(false);
 }
diff --git a/src/gui/widgets/container.h b/src/gui/widgets/container.h
index 46b719a1..6c5caa3a 100644
--- a/src/gui/widgets/container.h
+++ b/src/gui/widgets/container.h
@@ -42,7 +42,7 @@ class Container : public gcn::Container
 {
     public:
         Container();
-        ~Container();
+        ~Container() override;
 
     protected:
         /**
diff --git a/src/gui/widgets/desktop.cpp b/src/gui/widgets/desktop.cpp
index 07d1d887..3b26ef3a 100644
--- a/src/gui/widgets/desktop.cpp
+++ b/src/gui/widgets/desktop.cpp
@@ -37,7 +37,7 @@
 #include "utils/stringutils.h"
 
 Desktop::Desktop()
-    : mWallpaper(0)
+    : mWallpaper(nullptr)
 {
     addWidgetListener(this);
 
@@ -74,7 +74,7 @@ void Desktop::widgetResized(const gcn::Event &)
 
 void Desktop::draw(gcn::Graphics *graphics)
 {
-    Graphics *g = static_cast<Graphics *>(graphics);
+    auto *g = static_cast<Graphics *>(graphics);
 
     if (!mWallpaper || (getWidth() > mWallpaper->getWidth() ||
                         getHeight() > mWallpaper->getHeight()))
diff --git a/src/gui/widgets/desktop.h b/src/gui/widgets/desktop.h
index 8ecb7e03..e10813ef 100644
--- a/src/gui/widgets/desktop.h
+++ b/src/gui/widgets/desktop.h
@@ -47,16 +47,16 @@ class Desktop : public Container, gcn::WidgetListener
 {
     public:
         Desktop();
-        ~Desktop();
+        ~Desktop() override;
 
         /**
          * Has to be called after updates have been loaded.
          */
         void reloadWallpaper();
 
-        void widgetResized(const gcn::Event &);
+        void widgetResized(const gcn::Event &) override;
 
-        void draw(gcn::Graphics *graphics);
+        void draw(gcn::Graphics *graphics) override;
 
     private:
         void setBestFittingWallpaper();
diff --git a/src/gui/widgets/dropdown.h b/src/gui/widgets/dropdown.h
index ebc76184..f0b721f6 100644
--- a/src/gui/widgets/dropdown.h
+++ b/src/gui/widgets/dropdown.h
@@ -43,34 +43,34 @@ class DropDown : public gcn::DropDown
          * @param listModel the ListModel to use.
          * @see ListModel
          */
-        DropDown(gcn::ListModel *listModel = 0);
+        DropDown(gcn::ListModel *listModel = nullptr);
 
-        ~DropDown();
+        ~DropDown() override;
 
         /**
          * Update the alpha value to the graphic components.
          */
         void updateAlpha();
 
-        void draw(gcn::Graphics *graphics);
+        void draw(gcn::Graphics *graphics) override;
 
-        void drawFrame(gcn::Graphics *graphics);
+        void drawFrame(gcn::Graphics *graphics) override;
 
         // Inherited from FocusListener
 
-        void focusLost(const gcn::Event& event);
+        void focusLost(const gcn::Event& event) override;
 
         // Inherited from KeyListener
 
-        void keyPressed(gcn::KeyEvent& keyEvent);
+        void keyPressed(gcn::KeyEvent& keyEvent) override;
 
         // Inherited from MouseListener
 
-        void mousePressed(gcn::MouseEvent& mouseEvent);
+        void mousePressed(gcn::MouseEvent& mouseEvent) override;
 
-        void mouseWheelMovedUp(gcn::MouseEvent& mouseEvent);
+        void mouseWheelMovedUp(gcn::MouseEvent& mouseEvent) override;
 
-        void mouseWheelMovedDown(gcn::MouseEvent& mouseEvent);
+        void mouseWheelMovedDown(gcn::MouseEvent& mouseEvent) override;
 
     protected:
         /**
@@ -78,7 +78,7 @@ class DropDown : public gcn::DropDown
          *
          * @param graphics a Graphics object to draw with.
          */
-        void drawButton(gcn::Graphics *graphics);
+        void drawButton(gcn::Graphics *graphics) override;
 
         // Add own Images.
         static int instances;
diff --git a/src/gui/widgets/emoteshortcutcontainer.cpp b/src/gui/widgets/emoteshortcutcontainer.cpp
index cdb2d3c4..fa74cf20 100644
--- a/src/gui/widgets/emoteshortcutcontainer.cpp
+++ b/src/gui/widgets/emoteshortcutcontainer.cpp
@@ -79,7 +79,7 @@ void EmoteShortcutContainer::draw(gcn::Graphics *graphics)
         mBackgroundImg->setAlpha(mAlpha);
     }
 
-    Graphics *g = static_cast<Graphics*>(graphics);
+    auto *g = static_cast<Graphics*>(graphics);
 
     graphics->setFont(getFont());
 
diff --git a/src/gui/widgets/emoteshortcutcontainer.h b/src/gui/widgets/emoteshortcutcontainer.h
index cc388580..2d62b500 100644
--- a/src/gui/widgets/emoteshortcutcontainer.h
+++ b/src/gui/widgets/emoteshortcutcontainer.h
@@ -38,27 +38,27 @@ class EmoteShortcutContainer : public ShortcutContainer
     public:
         EmoteShortcutContainer();
 
-        virtual ~EmoteShortcutContainer();
+        ~EmoteShortcutContainer() override;
 
         /**
          * Draws the items.
          */
-        void draw(gcn::Graphics *graphics);
+        void draw(gcn::Graphics *graphics) override;
 
         /**
          * Handles mouse when dragged.
          */
-        void mouseDragged(gcn::MouseEvent &event);
+        void mouseDragged(gcn::MouseEvent &event) override;
 
         /**
          * Handles mouse when pressed.
          */
-        void mousePressed(gcn::MouseEvent &event);
+        void mousePressed(gcn::MouseEvent &event) override;
 
         /**
          * Handles mouse release.
          */
-        void mouseReleased(gcn::MouseEvent &event);
+        void mouseReleased(gcn::MouseEvent &event) override;
 
     private:
         std::vector<const ImageSprite*> mEmoteImg;
diff --git a/src/gui/widgets/flowcontainer.cpp b/src/gui/widgets/flowcontainer.cpp
index d04c5153..bf34c4c7 100644
--- a/src/gui/widgets/flowcontainer.cpp
+++ b/src/gui/widgets/flowcontainer.cpp
@@ -57,7 +57,7 @@ void FlowContainer::widgetResized(const gcn::Event &event)
 
     int i = 0;
     height = 0;
-    for (WidgetList::iterator it = mWidgets.begin(); it != mWidgets.end(); it++)
+    for (auto it = mWidgets.begin(); it != mWidgets.end(); it++)
     {
         int x = i % mGridWidth * mBoxWidth;
         (*it)->setPosition(x, height);
@@ -73,5 +73,5 @@ void FlowContainer::add(gcn::Widget *widget)
 {
     Container::add(widget);
     widget->setSize(mBoxWidth, mBoxHeight);
-    widgetResized(NULL);
+    widgetResized(nullptr);
 }
diff --git a/src/gui/widgets/flowcontainer.h b/src/gui/widgets/flowcontainer.h
index 0109ab64..28d148d5 100644
--- a/src/gui/widgets/flowcontainer.h
+++ b/src/gui/widgets/flowcontainer.h
@@ -40,7 +40,7 @@ class FlowContainer : public Container,
          * Invoked when a widget changes its size. This is used to determine
          * the new height of the container.
          */
-        void widgetResized(const gcn::Event &event);
+        void widgetResized(const gcn::Event &event) override;
 
         int getBoxWidth() const
         { return mBoxWidth; }
@@ -48,7 +48,7 @@ class FlowContainer : public Container,
         int getBoxHeight() const
         { return mBoxHeight; }
 
-        void add(gcn::Widget *widget);
+        void add(gcn::Widget *widget) override;
 
     private:
         int mBoxWidth;
diff --git a/src/gui/widgets/icon.cpp b/src/gui/widgets/icon.cpp
index 6b5120e6..5d7d62f7 100644
--- a/src/gui/widgets/icon.cpp
+++ b/src/gui/widgets/icon.cpp
@@ -27,7 +27,7 @@
 #include "resources/resourcemanager.h"
 
 Icon::Icon(const std::string &file)
-    : mImage(0)
+    : mImage(nullptr)
 {
     mImage = ResourceManager::getInstance()->getImage(file);
     if (mImage)
@@ -52,7 +52,7 @@ void Icon::draw(gcn::Graphics *g)
 {
     if (mImage)
     {
-        Graphics *graphics = static_cast<Graphics*>(g);
+        auto *graphics = static_cast<Graphics*>(g);
         const int x = (getWidth() - mImage->getWidth()) / 2;
         const int y = (getHeight() - mImage->getHeight()) / 2;
         graphics->drawImage(mImage, x, y);
diff --git a/src/gui/widgets/icon.h b/src/gui/widgets/icon.h
index 6945e4c9..896b26c1 100644
--- a/src/gui/widgets/icon.h
+++ b/src/gui/widgets/icon.h
@@ -59,7 +59,7 @@ class Icon : public gcn::Widget
         /**
          * Draws the Icon.
          */
-        void draw(gcn::Graphics *g);
+        void draw(gcn::Graphics *g) override;
 
     private:
         Image *mImage;
diff --git a/src/gui/widgets/inttextfield.h b/src/gui/widgets/inttextfield.h
index 19058a46..d5829404 100644
--- a/src/gui/widgets/inttextfield.h
+++ b/src/gui/widgets/inttextfield.h
@@ -63,7 +63,7 @@ class IntTextField : public TextField
         /**
          * Responds to key presses.
          */
-        void keyPressed(gcn::KeyEvent &event);
+        void keyPressed(gcn::KeyEvent &event) override;
 
     private:
         int mMin;            /**< Minimum value */
diff --git a/src/gui/widgets/itemcontainer.cpp b/src/gui/widgets/itemcontainer.cpp
index f15fe682..5b373bb6 100644
--- a/src/gui/widgets/itemcontainer.cpp
+++ b/src/gui/widgets/itemcontainer.cpp
@@ -96,7 +96,7 @@ void ItemContainer::logic()
 
 void ItemContainer::draw(gcn::Graphics *graphics)
 {
-    Graphics *g = static_cast<Graphics*>(graphics);
+    auto *g = static_cast<Graphics*>(graphics);
 
     g->setFont(getFont());
 
@@ -209,7 +209,7 @@ Item *ItemContainer::getSelectedItem() const
 
 Item *ItemContainer::getItemAt(int index) const
 {
-    std::map<int, Item*>::const_iterator i = mFilteredMap.find(index);
+    auto i = mFilteredMap.find(index);
     return i == mFilteredMap.end() ? 0 : i->second;
 }
 
diff --git a/src/gui/widgets/itemcontainer.h b/src/gui/widgets/itemcontainer.h
index aba12644..fe5b73e5 100644
--- a/src/gui/widgets/itemcontainer.h
+++ b/src/gui/widgets/itemcontainer.h
@@ -57,33 +57,33 @@ class ItemContainer : public gcn::Widget,
          */
         ItemContainer(Inventory *inventory);
 
-        virtual ~ItemContainer();
+        ~ItemContainer() override;
 
         void hidePopup();
 
         /**
          * Necessary for checking how full the inventory is.
          */
-        void logic();
+        void logic() override;
 
         /**
          * Draws the items.
          */
-        void draw(gcn::Graphics *graphics);
+        void draw(gcn::Graphics *graphics) override;
 
         // KeyListener
-        void keyPressed(gcn::KeyEvent &event);
-        void keyReleased(gcn::KeyEvent &event);
+        void keyPressed(gcn::KeyEvent &event) override;
+        void keyReleased(gcn::KeyEvent &event) override;
 
         // MouseListener
-        void mousePressed(gcn::MouseEvent &event);
-        void mouseDragged(gcn::MouseEvent &event);
-        void mouseReleased(gcn::MouseEvent &event);
-        void mouseMoved(gcn::MouseEvent &event);
-        void mouseExited(gcn::MouseEvent &event);
+        void mousePressed(gcn::MouseEvent &event) override;
+        void mouseDragged(gcn::MouseEvent &event) override;
+        void mouseReleased(gcn::MouseEvent &event) override;
+        void mouseMoved(gcn::MouseEvent &event) override;
+        void mouseExited(gcn::MouseEvent &event) override;
 
         // WidgetListener
-        void widgetResized(const gcn::Event &event);
+        void widgetResized(const gcn::Event &event) override;
 
         /**
          * Returns the selected item.
@@ -191,8 +191,8 @@ class ItemContainer : public gcn::Widget,
 
         ItemPopup *mItemPopup;
 
-        typedef std::list<gcn::SelectionListener*> SelectionListenerList;
-        typedef SelectionListenerList::iterator SelectionListenerIterator;
+        using SelectionListenerList = std::list<gcn::SelectionListener *>;
+        using SelectionListenerIterator = SelectionListenerList::iterator;
 
         SelectionListenerList mSelectionListeners;
 };
diff --git a/src/gui/widgets/itemlinkhandler.h b/src/gui/widgets/itemlinkhandler.h
index e499f3e4..dd9eeedc 100644
--- a/src/gui/widgets/itemlinkhandler.h
+++ b/src/gui/widgets/itemlinkhandler.h
@@ -30,8 +30,8 @@ class ItemLinkHandler : public LinkHandler
 {
     public:
         ItemLinkHandler();
-        ~ItemLinkHandler();
-        void handleLink(const std::string &link);
+        ~ItemLinkHandler() override;
+        void handleLink(const std::string &link) override;
 
     private:
         ItemPopup *mItemPopup;
diff --git a/src/gui/widgets/itemshortcutcontainer.cpp b/src/gui/widgets/itemshortcutcontainer.cpp
index 396de3bd..a43596f8 100644
--- a/src/gui/widgets/itemshortcutcontainer.cpp
+++ b/src/gui/widgets/itemshortcutcontainer.cpp
@@ -43,7 +43,7 @@
 ItemShortcutContainer::ItemShortcutContainer():
     ShortcutContainer(),
     mItemClicked(false),
-    mItemMoved(NULL)
+    mItemMoved(nullptr)
 {
     addMouseListener(this);
     addWidgetListener(this);
@@ -73,7 +73,7 @@ void ItemShortcutContainer::draw(gcn::Graphics *graphics)
         mBackgroundImg->setAlpha(mAlpha);
     }
 
-    Graphics *g = static_cast<Graphics*>(graphics);
+    auto *g = static_cast<Graphics*>(graphics);
 
     graphics->setFont(getFont());
 
@@ -196,7 +196,7 @@ void ItemShortcutContainer::mousePressed(gcn::MouseEvent &event)
 
         // Convert relative to the window coordinates to absolute screen
         // coordinates.
-        viewport->showPopup(NULL, viewport->getMouseX(), viewport->getMouseY(), item);
+        viewport->showPopup(nullptr, viewport->getMouseX(), viewport->getMouseY(), item);
     }
 }
 
@@ -210,13 +210,13 @@ void ItemShortcutContainer::mouseReleased(gcn::MouseEvent &event)
         const int index = getIndexFromGrid(event.getX(), event.getY());
         if (index == -1)
         {
-            mItemMoved = NULL;
+            mItemMoved = nullptr;
             return;
         }
         if (mItemMoved)
         {
             itemShortcut->setItems(index, mItemMoved->getId());
-            mItemMoved = NULL;
+            mItemMoved = nullptr;
         }
         else if (itemShortcut->getItem(index) && mItemClicked)
         {
diff --git a/src/gui/widgets/itemshortcutcontainer.h b/src/gui/widgets/itemshortcutcontainer.h
index 2441d2f8..55d14977 100644
--- a/src/gui/widgets/itemshortcutcontainer.h
+++ b/src/gui/widgets/itemshortcutcontainer.h
@@ -40,31 +40,31 @@ class ItemShortcutContainer : public ShortcutContainer
     public:
         ItemShortcutContainer();
 
-        virtual ~ItemShortcutContainer();
+        ~ItemShortcutContainer() override;
 
         /**
          * Draws the items.
          */
-        void draw(gcn::Graphics *graphics);
+        void draw(gcn::Graphics *graphics) override;
 
         /**
          * Handles mouse when dragged.
          */
-        void mouseDragged(gcn::MouseEvent &event);
+        void mouseDragged(gcn::MouseEvent &event) override;
 
         /**
          * Handles mouse when pressed.
          */
-        void mousePressed(gcn::MouseEvent &event);
+        void mousePressed(gcn::MouseEvent &event) override;
 
         /**
          * Handles mouse release.
          */
-        void mouseReleased(gcn::MouseEvent &event);
+        void mouseReleased(gcn::MouseEvent &event) override;
 
     private:
-        void mouseExited(gcn::MouseEvent &event);
-        void mouseMoved(gcn::MouseEvent &event);
+        void mouseExited(gcn::MouseEvent &event) override;
+        void mouseMoved(gcn::MouseEvent &event) override;
 
         bool mItemClicked;
         Item *mItemMoved;
diff --git a/src/gui/widgets/label.h b/src/gui/widgets/label.h
index f30308cd..cb7a8b1c 100644
--- a/src/gui/widgets/label.h
+++ b/src/gui/widgets/label.h
@@ -44,7 +44,7 @@ class Label : public gcn::Label
         /**
          * Draws the label.
          */
-        void draw(gcn::Graphics *graphics);
+        void draw(gcn::Graphics *graphics) override;
 };
 
 #endif
diff --git a/src/gui/widgets/layout.cpp b/src/gui/widgets/layout.cpp
index 68783ddc..ac8488e0 100644
--- a/src/gui/widgets/layout.cpp
+++ b/src/gui/widgets/layout.cpp
@@ -71,11 +71,11 @@ void LayoutCell::computeSizes()
 {
     assert(mType == ARRAY);
 
-    for (std::vector< std::vector< LayoutCell * > >::iterator
+    for (auto
          i = mArray->mCells.begin(), i_end = mArray->mCells.end();
          i != i_end; ++i)
     {
-        for (std::vector< LayoutCell * >::iterator
+        for (auto
              j = i->begin(), j_end = i->end(); j != j_end; ++j)
         {
             LayoutCell *cell = *j;
@@ -93,10 +93,10 @@ LayoutArray::LayoutArray(): mSpacing(4)
 
 LayoutArray::~LayoutArray()
 {
-    for (std::vector< std::vector< LayoutCell * > >::iterator
+    for (auto
          i = mCells.begin(), i_end = mCells.end(); i != i_end; ++i)
     {
-        for (std::vector< LayoutCell * >::iterator
+        for (auto
              j = i->begin(), j_end = i->end(); j != j_end; ++j)
         {
             delete *j;
@@ -133,10 +133,10 @@ void LayoutArray::resizeGrid(int w, int h)
         mSizes[0].resize(w, Layout::AUTO_DEF);
     }
 
-    for (std::vector< std::vector< LayoutCell * > >::iterator
+    for (auto
          i = mCells.begin(), i_end = mCells.end(); i != i_end; ++i)
     {
-        i->resize(w, NULL);
+        i->resize(w, nullptr);
     }
 }
 
diff --git a/src/gui/widgets/layout.h b/src/gui/widgets/layout.h
index 5652bdf5..8fd7a405 100644
--- a/src/gui/widgets/layout.h
+++ b/src/gui/widgets/layout.h
@@ -34,7 +34,7 @@ class LayoutCell;
 class ContainerPlacer
 {
     public:
-        ContainerPlacer(gcn::Container *c = NULL, LayoutCell *l = NULL):
+        ContainerPlacer(gcn::Container *c = nullptr, LayoutCell *l = nullptr):
             mContainer(c), mCell(l)
         {}
 
diff --git a/src/gui/widgets/layouthelper.h b/src/gui/widgets/layouthelper.h
index b8512212..26360a9a 100644
--- a/src/gui/widgets/layouthelper.h
+++ b/src/gui/widgets/layouthelper.h
@@ -36,7 +36,7 @@ class LayoutHelper : public gcn::WidgetListener
     public:
         explicit LayoutHelper(gcn::Container *container);
 
-        ~LayoutHelper();
+        ~LayoutHelper() override;
 
         /**
          * Gets the layout handler.
@@ -68,7 +68,7 @@ class LayoutHelper : public gcn::WidgetListener
         /**
          * Called whenever the managed container changes size.
          */
-        void widgetResized(const gcn::Event &event);
+        void widgetResized(const gcn::Event &event) override;
 
     private:
         Layout mLayout;              /**< Layout handler */
diff --git a/src/gui/widgets/listbox.h b/src/gui/widgets/listbox.h
index bc22da30..25787ca7 100644
--- a/src/gui/widgets/listbox.h
+++ b/src/gui/widgets/listbox.h
@@ -38,7 +38,7 @@ class ListBox : public gcn::ListBox
     public:
         ListBox(gcn::ListModel *listModel);
 
-        ~ListBox();
+        ~ListBox() override;
 
         /**
          * Sets the font to render the text in.
@@ -53,7 +53,7 @@ class ListBox : public gcn::ListBox
         /**
          * Draws the list box.
          */
-        void draw(gcn::Graphics *graphics);
+        void draw(gcn::Graphics *graphics) override;
 
         /**
          * Update the alpha value to the graphic components.
@@ -62,17 +62,17 @@ class ListBox : public gcn::ListBox
 
         // Inherited from KeyListener
 
-        void keyPressed(gcn::KeyEvent& keyEvent);
+        void keyPressed(gcn::KeyEvent& keyEvent) override;
 
         // Inherited from MouseListener
 
-        void mousePressed(gcn::MouseEvent& mouseEvent);
+        void mousePressed(gcn::MouseEvent& mouseEvent) override;
 
-        void mouseWheelMovedUp(gcn::MouseEvent& mouseEvent);
+        void mouseWheelMovedUp(gcn::MouseEvent& mouseEvent) override;
 
-        void mouseWheelMovedDown(gcn::MouseEvent& mouseEvent);
+        void mouseWheelMovedDown(gcn::MouseEvent& mouseEvent) override;
 
-        void mouseDragged(gcn::MouseEvent &event);
+        void mouseDragged(gcn::MouseEvent &event) override;
 
     private:
         gcn::Font *mFont;
diff --git a/src/gui/widgets/passwordfield.h b/src/gui/widgets/passwordfield.h
index 83e7e53b..4bed0e05 100644
--- a/src/gui/widgets/passwordfield.h
+++ b/src/gui/widgets/passwordfield.h
@@ -40,7 +40,7 @@ class PasswordField : public TextField
         /**
          * Draws the password field.
          */
-        void draw(gcn::Graphics *graphics);
+        void draw(gcn::Graphics *graphics) override;
 };
 
 #endif
diff --git a/src/gui/widgets/playerbox.cpp b/src/gui/widgets/playerbox.cpp
index 4f341af0..1d3325ee 100644
--- a/src/gui/widgets/playerbox.cpp
+++ b/src/gui/widgets/playerbox.cpp
@@ -71,7 +71,7 @@ PlayerBox::~PlayerBox()
 {
     instances--;
 
-    mBeing = 0;
+    mBeing = nullptr;
 
     if (instances == 0)
     {
diff --git a/src/gui/widgets/playerbox.h b/src/gui/widgets/playerbox.h
index 070bd82b..68dd670e 100644
--- a/src/gui/widgets/playerbox.h
+++ b/src/gui/widgets/playerbox.h
@@ -39,9 +39,9 @@ class PlayerBox : public gcn::ScrollArea
          * Constructor. Takes the initial player character that this box should
          * display, which defaults to <code>NULL</code>.
          */
-        PlayerBox(const Being *being = 0);
+        PlayerBox(const Being *being = nullptr);
 
-        ~PlayerBox();
+        ~PlayerBox() override;
 
         /**
          * Sets a new player character to be displayed by this box. Setting the
@@ -54,12 +54,12 @@ class PlayerBox : public gcn::ScrollArea
         /**
          * Draws the scroll area.
          */
-        void draw(gcn::Graphics *graphics);
+        void draw(gcn::Graphics *graphics) override;
 
         /**
          * Draws the background and border of the scroll area.
          */
-        void drawFrame(gcn::Graphics *graphics);
+        void drawFrame(gcn::Graphics *graphics) override;
 
     private:
         const Being *mBeing; /**< The character used for display */
diff --git a/src/gui/widgets/popup.cpp b/src/gui/widgets/popup.cpp
index 1c7cfdd1..298443e7 100644
--- a/src/gui/widgets/popup.cpp
+++ b/src/gui/widgets/popup.cpp
@@ -73,7 +73,7 @@ void Popup::setWindowContainer(WindowContainer *wc)
 
 void Popup::draw(gcn::Graphics *graphics)
 {
-    Graphics *g = static_cast<Graphics*>(graphics);
+    auto *g = static_cast<Graphics*>(graphics);
 
     g->drawImageRect(0, 0, getWidth(), getHeight(), mSkin->getBorder());
 
diff --git a/src/gui/widgets/popup.h b/src/gui/widgets/popup.h
index 5ec6ecd0..af37b211 100644
--- a/src/gui/widgets/popup.h
+++ b/src/gui/widgets/popup.h
@@ -62,7 +62,7 @@ class Popup : public Container, public gcn::MouseListener
         /**
          * Destructor. Deletes all the added widgets.
          */
-        ~Popup();
+        ~Popup() override;
 
         /**
          * Sets the window container to be used by new popups.
@@ -72,7 +72,7 @@ class Popup : public Container, public gcn::MouseListener
         /**
          * Draws the popup.
          */
-        void draw(gcn::Graphics *graphics);
+        void draw(gcn::Graphics *graphics) override;
 
         /**
          * Sets the size of this popup.
@@ -84,7 +84,7 @@ class Popup : public Container, public gcn::MouseListener
          */
         void setLocationRelativeTo(gcn::Widget *widget);
 
-        void mouseMoved(gcn::MouseEvent &event);
+        void mouseMoved(gcn::MouseEvent &event) override;
 
         /**
          * Sets the minimum width of the popup.
@@ -142,7 +142,7 @@ class Popup : public Container, public gcn::MouseListener
 
         // Inherited from BasicContainer
 
-        virtual gcn::Rectangle getChildrenArea();
+        gcn::Rectangle getChildrenArea() override;
 
         /**
          * Sets the location to display the popup. Tries to horizontally center
diff --git a/src/gui/widgets/progressbar.h b/src/gui/widgets/progressbar.h
index 56b2fe92..d3a4c100 100644
--- a/src/gui/widgets/progressbar.h
+++ b/src/gui/widgets/progressbar.h
@@ -44,12 +44,12 @@ class ProgressBar : public gcn::Widget
                     int width = 40, int height = 7,
                     int color = -1);
 
-        ~ProgressBar();
+        ~ProgressBar() override;
 
         /**
          * Performs progress bar logic (fading colors)
          */
-        void logic();
+        void logic() override;
 
         /**
          * Update the alpha value to the graphic components.
@@ -59,7 +59,7 @@ class ProgressBar : public gcn::Widget
         /**
          * Draws the progress bar.
          */
-        void draw(gcn::Graphics *graphics);
+        void draw(gcn::Graphics *graphics) override;
 
         /**
          * Sets the current progress.
diff --git a/src/gui/widgets/progressindicator.cpp b/src/gui/widgets/progressindicator.cpp
index 9971d144..2495a62d 100644
--- a/src/gui/widgets/progressindicator.cpp
+++ b/src/gui/widgets/progressindicator.cpp
@@ -35,7 +35,7 @@ ProgressIndicator::ProgressIndicator()
     ImageSet *images = Theme::getImageSetFromTheme("progress-indicator.png",
                                                    32, 32);
 
-    Animation *anim = new Animation;
+    auto *anim = new Animation;
     for (ImageSet::size_type i = 0; i < images->size(); ++i)
         anim->addFrame(images->get(i), 100, 0, 0);
 
diff --git a/src/gui/widgets/progressindicator.h b/src/gui/widgets/progressindicator.h
index cb469c07..13cab227 100644
--- a/src/gui/widgets/progressindicator.h
+++ b/src/gui/widgets/progressindicator.h
@@ -33,10 +33,10 @@ class ProgressIndicator : public gcn::Widget
 {
 public:
     ProgressIndicator();
-    ~ProgressIndicator();
+    ~ProgressIndicator() override;
 
-    void logic();
-    void draw(gcn::Graphics *graphics);
+    void logic() override;
+    void draw(gcn::Graphics *graphics) override;
 
 private:
     SimpleAnimation *mIndicator;
diff --git a/src/gui/widgets/radiobutton.cpp b/src/gui/widgets/radiobutton.cpp
index b0a92784..676daede 100644
--- a/src/gui/widgets/radiobutton.cpp
+++ b/src/gui/widgets/radiobutton.cpp
@@ -88,7 +88,7 @@ void RadioButton::drawBox(gcn::Graphics* graphics)
         radioCheckedHi->setAlpha(mAlpha);
     }
 
-    Image *box = NULL;
+    Image *box = nullptr;
 
     if (isEnabled())
         if (isSelected())
diff --git a/src/gui/widgets/radiobutton.h b/src/gui/widgets/radiobutton.h
index 5a868fea..014acd06 100644
--- a/src/gui/widgets/radiobutton.h
+++ b/src/gui/widgets/radiobutton.h
@@ -35,28 +35,28 @@ class RadioButton : public gcn::RadioButton
         RadioButton(const std::string &caption,const std::string &group,
                 bool marked = false);
 
-        ~RadioButton();
+        ~RadioButton() override;
 
         /**
          * Draws the radiobutton, not the caption.
          */
-        void drawBox(gcn::Graphics* graphics);
+        void drawBox(gcn::Graphics* graphics) override;
 
         /**
          * Implementation of the draw methods.
          * Thus, avoiding the rhomb around the radio button.
          */
-        void draw(gcn::Graphics* graphics);
+        void draw(gcn::Graphics* graphics) override;
 
         /**
          * Called when the mouse enteres the widget area.
          */
-        void mouseEntered(gcn::MouseEvent& event);
+        void mouseEntered(gcn::MouseEvent& event) override;
 
         /**
          * Called when the mouse leaves the widget area.
          */
-        void mouseExited(gcn::MouseEvent& event);
+        void mouseExited(gcn::MouseEvent& event) override;
 
     private:
         static int instances;
diff --git a/src/gui/widgets/resizegrip.cpp b/src/gui/widgets/resizegrip.cpp
index da97ac69..1770fcb1 100644
--- a/src/gui/widgets/resizegrip.cpp
+++ b/src/gui/widgets/resizegrip.cpp
@@ -29,7 +29,7 @@
 
 #include <guichan/graphics.hpp>
 
-Image *ResizeGrip::gripImage = 0;
+Image *ResizeGrip::gripImage = nullptr;
 int ResizeGrip::mInstances = 0;
 float ResizeGrip::mAlpha = 1.0;
 
diff --git a/src/gui/widgets/resizegrip.h b/src/gui/widgets/resizegrip.h
index 9e478cd9..d2f8ca4d 100644
--- a/src/gui/widgets/resizegrip.h
+++ b/src/gui/widgets/resizegrip.h
@@ -38,12 +38,12 @@ class ResizeGrip : public gcn::Widget
     public:
         ResizeGrip(const std::string &image = "resize.png");
 
-        ~ResizeGrip();
+        ~ResizeGrip() override;
 
         /**
          * Draws the resize grip.
          */
-        void draw(gcn::Graphics *graphics);
+        void draw(gcn::Graphics *graphics) override;
 
     private:
         static Image *gripImage;   /**< Resize grip image */
diff --git a/src/gui/widgets/scrollarea.h b/src/gui/widgets/scrollarea.h
index d3e308c7..266b5a31 100644
--- a/src/gui/widgets/scrollarea.h
+++ b/src/gui/widgets/scrollarea.h
@@ -56,13 +56,13 @@ class ScrollArea : public gcn::ScrollArea, public gcn::WidgetListener
         /**
          * Destructor. Also deletes the content.
          */
-        ~ScrollArea();
+        ~ScrollArea() override;
 
         /**
          * Logic function optionally adapts width or height of contents. This
          * depends on the scrollbar settings.
          */
-        void logic();
+        void logic() override;
 
         /**
          * Update the alpha value to the graphic components.
@@ -72,12 +72,12 @@ class ScrollArea : public gcn::ScrollArea, public gcn::WidgetListener
         /**
          * Draws the scroll area.
          */
-        void draw(gcn::Graphics *graphics);
+        void draw(gcn::Graphics *graphics) override;
 
         /**
          * Draws the background and border of the scroll area.
          */
-        void drawFrame(gcn::Graphics *graphics);
+        void drawFrame(gcn::Graphics *graphics) override;
 
         /**
          * Sets whether the widget should draw its background or not.
@@ -92,19 +92,19 @@ class ScrollArea : public gcn::ScrollArea, public gcn::WidgetListener
         /**
          * Called when the mouse moves in the widget area.
          */
-        void mouseMoved(gcn::MouseEvent& event);
+        void mouseMoved(gcn::MouseEvent& event) override;
 
         /**
          * Called when the mouse enteres the widget area.
          */
-        void mouseEntered(gcn::MouseEvent& event);
+        void mouseEntered(gcn::MouseEvent& event) override;
 
         /**
          * Called when the mouse leaves the widget area.
          */
-        void mouseExited(gcn::MouseEvent& event);
+        void mouseExited(gcn::MouseEvent& event) override;
 
-        void widgetResized(const gcn::Event &event);
+        void widgetResized(const gcn::Event &event) override;
 
     protected:
         enum BUTTON_DIR {
@@ -120,14 +120,14 @@ class ScrollArea : public gcn::ScrollArea, public gcn::WidgetListener
         void init();
 
         void drawButton(gcn::Graphics *graphics, BUTTON_DIR dir);
-        void drawUpButton(gcn::Graphics *graphics);
-        void drawDownButton(gcn::Graphics *graphics);
-        void drawLeftButton(gcn::Graphics *graphics);
-        void drawRightButton(gcn::Graphics *graphics);
-        void drawVBar(gcn::Graphics *graphics);
-        void drawHBar(gcn::Graphics *graphics);
-        void drawVMarker(gcn::Graphics *graphics);
-        void drawHMarker(gcn::Graphics *graphics);
+        void drawUpButton(gcn::Graphics *graphics) override;
+        void drawDownButton(gcn::Graphics *graphics) override;
+        void drawLeftButton(gcn::Graphics *graphics) override;
+        void drawRightButton(gcn::Graphics *graphics) override;
+        void drawVBar(gcn::Graphics *graphics) override;
+        void drawHBar(gcn::Graphics *graphics) override;
+        void drawVMarker(gcn::Graphics *graphics) override;
+        void drawHMarker(gcn::Graphics *graphics) override;
 
         static int instances;
         static float mAlpha;
diff --git a/src/gui/widgets/shopitems.cpp b/src/gui/widgets/shopitems.cpp
index 59711754..91829131 100644
--- a/src/gui/widgets/shopitems.cpp
+++ b/src/gui/widgets/shopitems.cpp
@@ -52,7 +52,7 @@ void ShopItems::addItem(int id, int amount, int price)
 
 void ShopItems::addItem(int inventoryIndex, int id, int quantity, int price)
 {
-    ShopItem *item = 0;
+    ShopItem *item = nullptr;
     if (mMergeDuplicates)
     {
         item = findItem(id);
@@ -99,5 +99,5 @@ ShopItem *ShopItems::findItem(int id)
         }
     }
 
-    return 0;
+    return nullptr;
 }
diff --git a/src/gui/widgets/shopitems.h b/src/gui/widgets/shopitems.h
index 338dc0cd..e213f67c 100644
--- a/src/gui/widgets/shopitems.h
+++ b/src/gui/widgets/shopitems.h
@@ -49,7 +49,7 @@ class ShopItems : public gcn::ListModel
          */
         ShopItems(bool mergeDuplicates = false);
 
-        ~ShopItems();
+        ~ShopItems() override;
 
         /**
          * Adds an item to the list.
@@ -70,14 +70,14 @@ class ShopItems : public gcn::ListModel
         /**
          * Returns the number of items in the shop.
          */
-        int getNumberOfElements();
+        int getNumberOfElements() override;
 
         /**
          * Returns the name of item number i in the shop.
          *
          * @param i the index to retrieve
          */
-        std::string getElementAt(int i);
+        std::string getElementAt(int i) override;
 
         /**
          * Returns the item number i in the shop.
diff --git a/src/gui/widgets/shoplistbox.cpp b/src/gui/widgets/shoplistbox.cpp
index e2e03e18..d6dd087a 100644
--- a/src/gui/widgets/shoplistbox.cpp
+++ b/src/gui/widgets/shoplistbox.cpp
@@ -87,7 +87,7 @@ void ShopListBox::draw(gcn::Graphics *gcnGraphics)
     const gcn::Color &textColor =
             Theme::getThemeColor(Theme::TEXT);
 
-    Graphics *graphics = static_cast<Graphics*>(gcnGraphics);
+    auto *graphics = static_cast<Graphics*>(gcnGraphics);
 
     graphics->setFont(getFont());
     const int fontHeight = getFont()->getHeight();
@@ -97,7 +97,7 @@ void ShopListBox::draw(gcn::Graphics *gcnGraphics)
          i < mListModel->getNumberOfElements();
          ++i, y += mRowHeight)
     {
-        ShopItem *shopItem = mShopItems ? mShopItems->at(i) : 0;
+        ShopItem *shopItem = mShopItems ? mShopItems->at(i) : nullptr;
 
         if (shopItem && mPlayerMoney < shopItem->getPrice() && mPriceCheck)
         {
diff --git a/src/gui/widgets/shoplistbox.h b/src/gui/widgets/shoplistbox.h
index a1554c6e..c3d10a4a 100644
--- a/src/gui/widgets/shoplistbox.h
+++ b/src/gui/widgets/shoplistbox.h
@@ -44,17 +44,17 @@ class ShopListBox : public ListBox
          */
         ShopListBox(gcn::ListModel *listModel, ShopItems *shopListModel);
 
-        ~ShopListBox();
+        ~ShopListBox() override;
 
         /**
          * Draws the list box.
          */
-        void draw(gcn::Graphics *graphics);
+        void draw(gcn::Graphics *graphics) override;
 
         /**
          * Returns the height of a row.
          */
-        unsigned int getRowHeight() const { return mRowHeight; }
+        unsigned int getRowHeight() const override { return mRowHeight; }
 
         /**
          * gives information about the current player's money
@@ -75,12 +75,12 @@ class ShopListBox : public ListBox
         /**
          ** Show ItemTooltip
          */
-        void mouseMoved(gcn::MouseEvent &event);
+        void mouseMoved(gcn::MouseEvent &event) override;
 
         /**
          ** Hide ItemTooltip
          */
-         void mouseExited(gcn::MouseEvent &event);
+         void mouseExited(gcn::MouseEvent &event) override;
 
     private:
         int mPlayerMoney;
diff --git a/src/gui/widgets/shortcutcontainer.h b/src/gui/widgets/shortcutcontainer.h
index e7f05c48..f0f9b730 100644
--- a/src/gui/widgets/shortcutcontainer.h
+++ b/src/gui/widgets/shortcutcontainer.h
@@ -40,33 +40,33 @@ class ShortcutContainer : public gcn::Widget,
     public:
         ShortcutContainer();
 
-        ~ShortcutContainer() {}
+        ~ShortcutContainer() override {}
 
         /**
          * Draws the shortcuts
          */
-        virtual void draw(gcn::Graphics *graphics) = 0;
+        void draw(gcn::Graphics *graphics) override = 0;
 
         /**
          * Invoked when a widget changes its size. This is used to determine
          * the new height of the container.
          */
-        virtual void widgetResized(const gcn::Event &event);
+        void widgetResized(const gcn::Event &event) override;
 
         /**
          * Handles mouse when dragged.
          */
-        virtual void mouseDragged(gcn::MouseEvent &event) = 0;
+        void mouseDragged(gcn::MouseEvent &event) override = 0;
 
         /**
          * Handles mouse when pressed.
          */
-        virtual void mousePressed(gcn::MouseEvent &event) = 0;
+        void mousePressed(gcn::MouseEvent &event) override = 0;
 
         /**
          * Handles mouse release.
          */
-        virtual void mouseReleased(gcn::MouseEvent &event) = 0;
+        void mouseReleased(gcn::MouseEvent &event) override = 0;
 
         int getMaxItems() const
         { return mMaxItems; }
diff --git a/src/gui/widgets/slider.h b/src/gui/widgets/slider.h
index a7ad6abf..d5b9d5ec 100644
--- a/src/gui/widgets/slider.h
+++ b/src/gui/widgets/slider.h
@@ -47,7 +47,7 @@ class Slider : public gcn::Slider
          */
         Slider(double scaleStart, double scaleEnd);
 
-        ~Slider();
+        ~Slider() override;
 
         /**
          * Update the alpha value to the graphic components.
@@ -57,22 +57,22 @@ class Slider : public gcn::Slider
         /**
          * Draws the slider.
          */
-        void draw(gcn::Graphics *graphics);
+        void draw(gcn::Graphics *graphics) override;
 
         /**
          * Draws the marker.
          */
-        void drawMarker(gcn::Graphics *graphics);
+        void drawMarker(gcn::Graphics *graphics) override;
 
         /**
          * Called when the mouse enteres the widget area.
          */
-        void mouseEntered(gcn::MouseEvent& event);
+        void mouseEntered(gcn::MouseEvent& event) override;
 
         /**
          * Called when the mouse leaves the widget area.
          */
-        void mouseExited(gcn::MouseEvent& event);
+        void mouseExited(gcn::MouseEvent& event) override;
 
     private:
         /**
diff --git a/src/gui/widgets/spacer.h b/src/gui/widgets/spacer.h
index 75a83afd..11e0ac66 100644
--- a/src/gui/widgets/spacer.h
+++ b/src/gui/widgets/spacer.h
@@ -47,7 +47,7 @@ class Spacer : public gcn::Widget
         /**
          * Draws nothing.
          */
-        void draw(gcn::Graphics *g) {}
+        void draw(gcn::Graphics *g) override {}
 };
 
 #endif // SPACER_H
diff --git a/src/gui/widgets/tab.h b/src/gui/widgets/tab.h
index 49537e76..9dc5291e 100644
--- a/src/gui/widgets/tab.h
+++ b/src/gui/widgets/tab.h
@@ -35,7 +35,7 @@ class Tab : public gcn::Tab
 {
     public:
         Tab();
-        ~Tab();
+        ~Tab() override;
 
         /**
          * Update the alpha value to the graphic components.
@@ -45,7 +45,7 @@ class Tab : public gcn::Tab
         /**
          * Draw the tabbed area.
          */
-        void draw(gcn::Graphics *graphics);
+        void draw(gcn::Graphics *graphics) override;
 
         /**
          * Set the normal color fo the tab's text.
diff --git a/src/gui/widgets/tabbedarea.cpp b/src/gui/widgets/tabbedarea.cpp
index 52690657..cd2c0f03 100644
--- a/src/gui/widgets/tabbedarea.cpp
+++ b/src/gui/widgets/tabbedarea.cpp
@@ -41,7 +41,7 @@ TabbedArea::TabbedArea() : gcn::TabbedArea(),
     add(mArrowButton[0]);
     add(mArrowButton[1]);
 
-    widgetResized(NULL);
+    widgetResized(nullptr);
 }
 
 int TabbedArea::getNumberOfTabs() const
@@ -51,7 +51,7 @@ int TabbedArea::getNumberOfTabs() const
 
 Tab *TabbedArea::getTab(const std::string &name) const
 {
-    TabContainer::const_iterator itr = mTabs.begin(), itr_end = mTabs.end();
+    auto itr = mTabs.begin(), itr_end = mTabs.end();
     while (itr != itr_end)
     {
         if ((*itr).first->getCaption() == name)
@@ -59,7 +59,7 @@ Tab *TabbedArea::getTab(const std::string &name) const
 
         ++itr;
     }
-    return NULL;
+    return nullptr;
 }
 
 void TabbedArea::draw(gcn::Graphics *graphics)
@@ -72,7 +72,7 @@ void TabbedArea::draw(gcn::Graphics *graphics)
 
 gcn::Widget *TabbedArea::getWidget(const std::string &name) const
 {
-    TabContainer::const_iterator itr = mTabs.begin(), itr_end = mTabs.end();
+    auto itr = mTabs.begin(), itr_end = mTabs.end();
     while (itr != itr_end)
     {
         if ((*itr).first->getCaption() == name)
@@ -81,7 +81,7 @@ gcn::Widget *TabbedArea::getWidget(const std::string &name) const
         ++itr;
     }
 
-    return NULL;
+    return nullptr;
 }
 
 gcn::Widget *TabbedArea::getCurrentWidget()
@@ -89,7 +89,7 @@ gcn::Widget *TabbedArea::getCurrentWidget()
     if (gcn::Tab *tab = getSelectedTab())
         return getWidget(tab->getCaption());
 
-    return NULL;
+    return nullptr;
 }
 
 void TabbedArea::addTab(gcn::Tab* tab, gcn::Widget* widget)
@@ -119,7 +119,7 @@ void TabbedArea::removeTab(Tab *tab)
         if (getNumberOfTabs() > 1)
             setSelectedTab(std::max(0, getSelectedTabIndex() - 1));
         else
-            mSelectedTab = 0;
+            mSelectedTab = nullptr;
     }
 
     TabContainer::iterator iter;
@@ -163,7 +163,7 @@ void TabbedArea::mousePressed(gcn::MouseEvent &mouseEvent)
     {
         gcn::Widget *widget = mTabContainer->getWidgetAt(mouseEvent.getX(),
                                                          mouseEvent.getY());
-        gcn::Tab *tab = dynamic_cast<gcn::Tab*>(widget);
+        auto *tab = dynamic_cast<gcn::Tab*>(widget);
 
         if (tab)
         {
@@ -180,7 +180,7 @@ void TabbedArea::setSelectedTab(gcn::Tab *tab)
     if (Tab *newTab = dynamic_cast<Tab*>(tab))
         newTab->setCurrent();
 
-    widgetResized(NULL);
+    widgetResized(nullptr);
 }
 
 void TabbedArea::widgetResized(const gcn::Event &event)
diff --git a/src/gui/widgets/tabbedarea.h b/src/gui/widgets/tabbedarea.h
index b43078a4..53bb2bb2 100644
--- a/src/gui/widgets/tabbedarea.h
+++ b/src/gui/widgets/tabbedarea.h
@@ -44,7 +44,7 @@ class TabbedArea : public gcn::TabbedArea, public gcn::WidgetListener
         /**
          * Draw the tabbed area.
          */
-        void draw(gcn::Graphics *graphics);
+        void draw(gcn::Graphics *graphics) override;
 
         /**
          * Return how many tabs have been created.
@@ -74,7 +74,7 @@ class TabbedArea : public gcn::TabbedArea, public gcn::WidgetListener
          * @param tab The tab widget for the tab.
          * @param widget The widget to view when the tab is selected.
          */
-        void addTab(gcn::Tab* tab, gcn::Widget* widget);
+        void addTab(gcn::Tab* tab, gcn::Widget* widget) override;
 
         /**
          * Add a tab. Overridden since it needs to create an instance of Tab
@@ -83,7 +83,7 @@ class TabbedArea : public gcn::TabbedArea, public gcn::WidgetListener
          * @param caption The Caption to display
          * @param widget The widget to show when tab is selected
          */
-        void addTab(const std::string &caption, gcn::Widget *widget);
+        void addTab(const std::string &caption, gcn::Widget *widget) override;
 
         /**
          * Overload the remove tab function as it's broken in guichan 0.8.
@@ -93,27 +93,27 @@ class TabbedArea : public gcn::TabbedArea, public gcn::WidgetListener
         /**
          * Overload the logic function since it's broken in guichan 0.8.
          */
-        void logic();
+        void logic() override;
 
         int getContainerHeight() const
         { return mWidgetContainer->getHeight(); }
 
-        void setSelectedTab(unsigned int index)
+        void setSelectedTab(unsigned int index) override
         { gcn::TabbedArea::setSelectedTab(index); }
 
-        void setSelectedTab(gcn::Tab *tab);
+        void setSelectedTab(gcn::Tab *tab) override;
 
-        void widgetResized(const gcn::Event &event);
+        void widgetResized(const gcn::Event &event) override;
 
         void adjustTabPositions();
 
-        void action(const gcn::ActionEvent& actionEvent);
+        void action(const gcn::ActionEvent& actionEvent) override;
 
         // Inherited from MouseListener
 
-        void mousePressed(gcn::MouseEvent &mouseEvent);
+        void mousePressed(gcn::MouseEvent &mouseEvent) override;
     private:
-        typedef std::vector< std::pair<gcn::Tab*, gcn::Widget*> > TabContainer;
+        using TabContainer = std::vector<std::pair<gcn::Tab *, gcn::Widget *>>;
 
         /** The tab arrows */
         Button *mArrowButton[2];
diff --git a/src/gui/widgets/table.cpp b/src/gui/widgets/table.cpp
index 08aae006..465fbc61 100644
--- a/src/gui/widgets/table.cpp
+++ b/src/gui/widgets/table.cpp
@@ -40,9 +40,9 @@ class GuiTableActionListener : public gcn::ActionListener
 public:
     GuiTableActionListener(GuiTable *_table, gcn::Widget *_widget, int _row, int _column);
 
-    virtual ~GuiTableActionListener();
+    ~GuiTableActionListener() override;
 
-    virtual void action(const gcn::ActionEvent& actionEvent);
+    void action(const gcn::ActionEvent& actionEvent) override;
 
 protected:
     GuiTable *mTable;
@@ -70,7 +70,7 @@ GuiTableActionListener::~GuiTableActionListener()
     if (mWidget)
     {
         mWidget->removeActionListener(this);
-        mWidget->_setParent(NULL);
+        mWidget->_setParent(nullptr);
     }
 }
 
@@ -87,10 +87,10 @@ GuiTable::GuiTable(TableModel *initial_model, gcn::Color background,
     mWrappingEnabled(false),
     mOpaque(opacity),
     mBackgroundColor(background),
-    mModel(NULL),
+    mModel(nullptr),
     mSelectedRow(0),
     mSelectedColumn(0),
-    mTopWidget(NULL)
+    mTopWidget(nullptr)
 {
     setModel(initial_model);
     setFocusable(true);
@@ -367,7 +367,7 @@ void GuiTable::moveToBottom(gcn::Widget *widget)
 {
     gcn::Widget::moveToBottom(widget);
     if (widget == mTopWidget)
-        mTopWidget = NULL;
+        mTopWidget = nullptr;
 }
 
 gcn::Rectangle GuiTable::getChildrenArea() const
@@ -484,7 +484,7 @@ void GuiTable::modelUpdated(bool completed)
     }
     else
     { // before the update?
-        mTopWidget = NULL; // No longer valid in general
+        mTopWidget = nullptr; // No longer valid in general
         uninstallActionListeners();
     }
 }
@@ -503,10 +503,10 @@ gcn::Widget *GuiTable::getWidgetAt(int x, int y) const
         if (w && w->isFocusable())
             return w;
         else
-            return NULL; // Grab the event locally
+            return nullptr; // Grab the event locally
     }
     else
-        return NULL;
+        return nullptr;
 }
 
 int GuiTable::getRowForY(int y) const
diff --git a/src/gui/widgets/table.h b/src/gui/widgets/table.h
index 1a412b6f..a9202022 100644
--- a/src/gui/widgets/table.h
+++ b/src/gui/widgets/table.h
@@ -50,10 +50,10 @@ class GuiTable : public gcn::Widget,
     friend class GuiTableActionListener;
 
 public:
-    GuiTable(TableModel * initial_model = NULL, gcn::Color background = 0xffffff,
+    GuiTable(TableModel * initial_model = nullptr, gcn::Color background = 0xffffff,
              bool opacity = true);
 
-    virtual ~GuiTable();
+    ~GuiTable() override;
 
     /**
      * Retrieves the active table model
@@ -101,18 +101,18 @@ public:
     void setLinewiseSelection(bool linewise);
 
     // Inherited from Widget
-    virtual void draw(gcn::Graphics* graphics);
+    void draw(gcn::Graphics* graphics) override;
 
     virtual gcn::Widget *getWidgetAt(int x, int y) const;
 
-    virtual void moveToTop(gcn::Widget *child);
+    void moveToTop(gcn::Widget *child) override;
 
-    virtual void moveToBottom(gcn::Widget *child);
+    void moveToBottom(gcn::Widget *child) override;
 
-    virtual void _setFocusHandler(gcn::FocusHandler* focusHandler);
+    void _setFocusHandler(gcn::FocusHandler* focusHandler) override;
 
     // Inherited from KeyListener
-    virtual void keyPressed(gcn::KeyEvent& keyEvent);
+    void keyPressed(gcn::KeyEvent& keyEvent) override;
 
     /**
      * Sets the table to be opaque, that is sets the table
@@ -131,16 +131,16 @@ public:
     virtual bool isOpaque() const {return mOpaque;}
 
     // Inherited from MouseListener
-    virtual void mousePressed(gcn::MouseEvent& mouseEvent);
+    void mousePressed(gcn::MouseEvent& mouseEvent) override;
 
-    virtual void mouseWheelMovedUp(gcn::MouseEvent& mouseEvent);
+    void mouseWheelMovedUp(gcn::MouseEvent& mouseEvent) override;
 
-    virtual void mouseWheelMovedDown(gcn::MouseEvent& mouseEvent);
+    void mouseWheelMovedDown(gcn::MouseEvent& mouseEvent) override;
 
-    virtual void mouseDragged(gcn::MouseEvent& mouseEvent);
+    void mouseDragged(gcn::MouseEvent& mouseEvent) override;
 
     // Constraints inherited from TableModelListener
-    virtual void modelUpdated(bool);
+    void modelUpdated(bool) override;
 
 protected:
     /** Frees all action listeners on inner widgets. */
diff --git a/src/gui/widgets/tablemodel.cpp b/src/gui/widgets/tablemodel.cpp
index 501e9c31..5273e929 100644
--- a/src/gui/widgets/tablemodel.cpp
+++ b/src/gui/widgets/tablemodel.cpp
@@ -37,13 +37,13 @@ void TableModel::removeListener(TableModelListener *listener)
 
 void TableModel::signalBeforeUpdate()
 {
-    for (std::set<TableModelListener *>::const_iterator it = listeners.begin(); it != listeners.end(); it++)
+    for (auto it = listeners.begin(); it != listeners.end(); it++)
         (*it)->modelUpdated(false);
 }
 
 void TableModel::signalAfterUpdate()
 {
-    for (std::set<TableModelListener *>::const_iterator it = listeners.begin(); it != listeners.end(); it++)
+    for (auto it = listeners.begin(); it != listeners.end(); it++)
         (*it)->modelUpdated(true);
 }
 
diff --git a/src/gui/widgets/tablemodel.h b/src/gui/widgets/tablemodel.h
index ca657415..2e36992a 100644
--- a/src/gui/widgets/tablemodel.h
+++ b/src/gui/widgets/tablemodel.h
@@ -101,7 +101,7 @@ class StaticTableModel : public TableModel
 {
 public:
     StaticTableModel(int width, int height);
-    virtual ~StaticTableModel();
+    ~StaticTableModel() override;
 
     /**
      * Inserts a widget into the table model.
@@ -130,13 +130,13 @@ public:
      */
     virtual void resize();
 
-    virtual int getRows() const;
-    virtual int getColumns() const;
-    virtual int getRowHeight() const;
+    int getRows() const override;
+    int getColumns() const override;
+    int getRowHeight() const override;
     virtual int getWidth() const;
     virtual int getHeight() const;
-    virtual int getColumnWidth(int index) const;
-    virtual gcn::Widget *getElementAt(int row, int column) const;
+    int getColumnWidth(int index) const override;
+    gcn::Widget *getElementAt(int row, int column) const override;
 
 protected:
     int mRows, mColumns;
diff --git a/src/gui/widgets/textbox.h b/src/gui/widgets/textbox.h
index dc003036..bcf09ee2 100644
--- a/src/gui/widgets/textbox.h
+++ b/src/gui/widgets/textbox.h
@@ -52,7 +52,7 @@ class TextBox : public gcn::TextBox
         /**
          * Draws the text.
          */
-        void draw(gcn::Graphics *graphics)
+        void draw(gcn::Graphics *graphics) override
         {
             setForegroundColor(*mTextColor);
             gcn::TextBox::draw(graphics);
diff --git a/src/gui/widgets/textfield.cpp b/src/gui/widgets/textfield.cpp
index 35ce09c5..1609e002 100644
--- a/src/gui/widgets/textfield.cpp
+++ b/src/gui/widgets/textfield.cpp
@@ -46,8 +46,8 @@ ImageRect TextField::skin;
 TextField::TextField(const std::string &text, bool loseFocusOnTab):
     gcn::TextField(text),
     mNumeric(false),
-    mAutoComplete(NULL),
-    mHistory(NULL)
+    mAutoComplete(nullptr),
+    mHistory(nullptr)
 {
     setFrameSize(2);
 
@@ -203,7 +203,7 @@ void TextField::keyPressed(gcn::KeyEvent &keyEvent)
             if (mHistory && !mHistory->atEnd())
             {
                 // Move forward through the history
-                TextHistoryIterator prevHist = mHistory->current++;
+                auto prevHist = mHistory->current++;
 
                 if (!mHistory->atEnd())
                 {
@@ -324,7 +324,7 @@ void TextField::autoComplete()
         if (newName == "" && mHistory)
         {
 
-            TextHistoryIterator i = mHistory->history.begin();
+            auto i = mHistory->history.begin();
             std::vector<std::string> nameList;
 
             while (i != mHistory->history.end())
diff --git a/src/gui/widgets/textfield.h b/src/gui/widgets/textfield.h
index bf60cbc3..b1b7a6a4 100644
--- a/src/gui/widgets/textfield.h
+++ b/src/gui/widgets/textfield.h
@@ -30,8 +30,8 @@ class TextInput;
 class ImageRect;
 class TextField;
 
-typedef std::list<std::string> TextHistoryList;
-typedef TextHistoryList::iterator TextHistoryIterator;
+using TextHistoryList = std::list<std::string>;
+using TextHistoryIterator = TextHistoryList::iterator;
 
 struct TextHistory {
     TextHistoryList history;     /**< Command history. */
@@ -80,12 +80,12 @@ class TextField : public gcn::TextField
          * Constructor, initializes the text field with the given string.
          */
         TextField(const std::string &text = "", bool loseFocusOnTab = true);
-        ~TextField();
+        ~TextField() override;
 
         /**
          * Draws the text field.
          */
-        virtual void draw(gcn::Graphics *graphics);
+        void draw(gcn::Graphics *graphics) override;
 
         /**
          * Update the alpha value to the graphic components.
@@ -95,7 +95,7 @@ class TextField : public gcn::TextField
         /**
          * Draws the background and border.
          */
-        void drawFrame(gcn::Graphics *graphics);
+        void drawFrame(gcn::Graphics *graphics) override;
 
         /**
          * Determine whether the field should be numeric or not
@@ -114,7 +114,7 @@ class TextField : public gcn::TextField
         /**
          * Processes one keypress.
          */
-        void keyPressed(gcn::KeyEvent &keyEvent);
+        void keyPressed(gcn::KeyEvent &keyEvent) override;
 
         /**
          * Handle text input (should possibly be new event in Guichan).
diff --git a/src/gui/widgets/textpreview.cpp b/src/gui/widgets/textpreview.cpp
index b0963d30..d6ef172c 100644
--- a/src/gui/widgets/textpreview.cpp
+++ b/src/gui/widgets/textpreview.cpp
@@ -38,7 +38,7 @@ TextPreview::TextPreview(const std::string &text):
     mTextAlpha = false;
     mFont = gui->getFont();
     mTextColor = &Theme::getThemeColor(Theme::TEXT);
-    mTextBGColor = NULL;
+    mTextBGColor = nullptr;
     mBGColor = &Theme::getThemeColor(Theme::BACKGROUND);
     mOpaque = false;
 }
@@ -64,7 +64,7 @@ void TextPreview::draw(gcn::Graphics* graphics)
 
     if (mTextBGColor && typeid(*mFont) == typeid(TrueTypeFont))
     {
-        TrueTypeFont *font = static_cast<TrueTypeFont*>(mFont);
+        auto *font = static_cast<TrueTypeFont*>(mFont);
         int x = font->getWidth(mText) + 1 + 2 * ((mOutline || mShadow) ? 1 :0);
         int y = font->getHeight() + 1 + 2 * ((mOutline || mShadow) ? 1 : 0);
         graphics->setColor(gcn::Color((int) mTextBGColor->r,
diff --git a/src/gui/widgets/textpreview.h b/src/gui/widgets/textpreview.h
index 6a0cb28b..0cda7c8b 100644
--- a/src/gui/widgets/textpreview.h
+++ b/src/gui/widgets/textpreview.h
@@ -110,7 +110,7 @@ class TextPreview : public gcn::Widget
          *
          * @param graphics graphics to draw into
          */
-        void draw(gcn::Graphics *graphics);
+        void draw(gcn::Graphics *graphics) override;
 
         /**
          * Set opacity for this widget (whether or not to show the background
diff --git a/src/gui/widgets/vertcontainer.cpp b/src/gui/widgets/vertcontainer.cpp
index e21e9d75..ad87788f 100644
--- a/src/gui/widgets/vertcontainer.cpp
+++ b/src/gui/widgets/vertcontainer.cpp
@@ -45,7 +45,7 @@ void VertContainer::clear()
 
 void VertContainer::widgetResized(const gcn::Event &event)
 {
-    for (WidgetListIterator it = mWidgets.begin(); it != mWidgets.end(); it++)
+    for (auto it = mWidgets.begin(); it != mWidgets.end(); it++)
     {
         (*it)->setWidth(getWidth());
     }
diff --git a/src/gui/widgets/vertcontainer.h b/src/gui/widgets/vertcontainer.h
index c2403afb..439f7ca1 100644
--- a/src/gui/widgets/vertcontainer.h
+++ b/src/gui/widgets/vertcontainer.h
@@ -34,9 +34,9 @@ class VertContainer : public Container, public gcn::WidgetListener
 {
     public:
         VertContainer(int spacing);
-        virtual void add(gcn::Widget *widget);
-        virtual void clear();
-        void widgetResized(const gcn::Event &event);
+        void add(gcn::Widget *widget) override;
+        void clear() override;
+        void widgetResized(const gcn::Event &event) override;
 
     private:
         int mSpacing;
diff --git a/src/gui/widgets/whispertab.h b/src/gui/widgets/whispertab.h
index a0dcfc14..0f01bacc 100644
--- a/src/gui/widgets/whispertab.h
+++ b/src/gui/widgets/whispertab.h
@@ -34,12 +34,12 @@ class WhisperTab : public ChatTab
     public:
         const std::string &getNick() const { return mNick; }
 
-        void showHelp();
+        void showHelp() override;
 
         bool handleCommand(const std::string &type,
-                           const std::string &args);
+                           const std::string &args) override;
 
-        void saveToLogFile(std::string &msg);
+        void saveToLogFile(std::string &msg) override;
 
     protected:
         friend class ChatWindow;
@@ -51,13 +51,13 @@ class WhisperTab : public ChatTab
          */
         WhisperTab(const std::string &nick);
 
-        ~WhisperTab();
+        ~WhisperTab() override;
 
-        void handleInput(const std::string &msg);
+        void handleInput(const std::string &msg) override;
 
-        void handleCommand(const std::string &msg);
+        void handleCommand(const std::string &msg) override;
 
-        bool checkNotify(Own) const
+        bool checkNotify(Own) const override
         { return true; }
 
     private:
diff --git a/src/gui/widgets/window.cpp b/src/gui/widgets/window.cpp
index c8788c75..05638470 100644
--- a/src/gui/widgets/window.cpp
+++ b/src/gui/widgets/window.cpp
@@ -44,9 +44,9 @@ int Window::mouseResize = 0;
 Window::Window(const std::string &caption, bool modal, Window *parent,
                const std::string &skin):
     gcn::Window(caption),
-    mGrip(0),
+    mGrip(nullptr),
     mParent(parent),
-    mLayout(NULL),
+    mLayout(nullptr),
     mWindowName("window"),
     mShowTitle(true),
     mModal(modal),
@@ -114,7 +114,7 @@ void Window::setWindowContainer(WindowContainer *wc)
 
 void Window::draw(gcn::Graphics *graphics)
 {
-    Graphics *g = static_cast<Graphics*>(graphics);
+    auto *g = static_cast<Graphics*>(graphics);
 
     g->drawImageRect(0, 0, getWidth(), getHeight(), mSkin->getBorder());
 
@@ -260,7 +260,7 @@ void Window::setResizable(bool r)
     {
         remove(mGrip);
         delete mGrip;
-        mGrip = 0;
+        mGrip = nullptr;
     }
 }
 
@@ -757,7 +757,7 @@ void Window::reflowLayout(int w, int h)
     assert(mLayout);
     mLayout->reflow(w, h);
     delete mLayout;
-    mLayout = NULL;
+    mLayout = nullptr;
     setContentSize(w, h);
 }
 
diff --git a/src/gui/widgets/window.h b/src/gui/widgets/window.h
index fc44ec5f..fe2b217c 100644
--- a/src/gui/widgets/window.h
+++ b/src/gui/widgets/window.h
@@ -57,12 +57,12 @@ class Window : public gcn::Window, gcn::WidgetListener
          * @param skin    The location where the window's skin XML can be found.
          */
         Window(const std::string &caption = "Window", bool modal = false,
-               Window *parent = NULL, const std::string &skin = "window.xml");
+               Window *parent = nullptr, const std::string &skin = "window.xml");
 
         /**
          * Destructor. Deletes all the added widgets.
          */
-        ~Window();
+        ~Window() override;
 
         /**
          * Sets the window container to be used by new windows.
@@ -72,7 +72,7 @@ class Window : public gcn::Window, gcn::WidgetListener
         /**
          * Draws the window.
          */
-        void draw(gcn::Graphics *graphics);
+        void draw(gcn::Graphics *graphics) override;
 
         /**
          * Sets the size of this window.
@@ -100,12 +100,12 @@ class Window : public gcn::Window, gcn::WidgetListener
         /**
          * Called whenever the widget changes size.
          */
-        void widgetResized(const gcn::Event &event);
+        void widgetResized(const gcn::Event &event) override;
 
         /**
          * Called whenever the widget is hidden.
          */
-        virtual void widgetHidden(const gcn::Event &event);
+        void widgetHidden(const gcn::Event &event) override;
 
         /**
          * Sets whether or not the window has a close button.
@@ -215,31 +215,31 @@ class Window : public gcn::Window, gcn::WidgetListener
         /**
          * Starts window resizing when appropriate.
          */
-        void mousePressed(gcn::MouseEvent &event);
+        void mousePressed(gcn::MouseEvent &event) override;
 
         /**
          * Implements window resizing and makes sure the window is not
          * dragged/resized outside of the screen.
          */
-        void mouseDragged(gcn::MouseEvent &event);
+        void mouseDragged(gcn::MouseEvent &event) override;
 
         /**
          * Implements custom cursor image changing context, based on mouse
          * relative position.
          */
-        void mouseMoved(gcn::MouseEvent &event);
+        void mouseMoved(gcn::MouseEvent &event) override;
 
         /**
          * When the mouse button has been let go, this ensures that the mouse
          * custom cursor is restored back to it's standard image.
          */
-        void mouseReleased(gcn::MouseEvent &event);
+        void mouseReleased(gcn::MouseEvent &event) override;
 
         /**
          * When the mouse leaves the window this ensures that the custom cursor
          * is restored back to it's standard image.
          */
-        void mouseExited(gcn::MouseEvent &event);
+        void mouseExited(gcn::MouseEvent &event) override;
 
         /**
          * Sets the name of the window. This is not the window title.
diff --git a/src/gui/widgets/windowcontainer.cpp b/src/gui/widgets/windowcontainer.cpp
index 5cff4999..c7ac5d99 100644
--- a/src/gui/widgets/windowcontainer.cpp
+++ b/src/gui/widgets/windowcontainer.cpp
@@ -25,7 +25,7 @@
 
 #include "utils/dtor.h"
 
-WindowContainer *windowContainer = NULL;
+WindowContainer *windowContainer = nullptr;
 
 void WindowContainer::logic()
 {
@@ -43,7 +43,7 @@ void WindowContainer::scheduleDelete(gcn::Widget *widget)
 void WindowContainer::adjustAfterResize(int oldScreenWidth,
                                         int oldScreenHeight)
 {
-    for (WidgetListIterator i = mWidgets.begin(); i != mWidgets.end(); ++i)
-        if (Window *window = dynamic_cast<Window*>(*i))
+    for (auto i = mWidgets.begin(); i != mWidgets.end(); ++i)
+        if (auto *window = dynamic_cast<Window*>(*i))
             window->adjustPositionAfterResize(oldScreenWidth, oldScreenHeight);
 }
diff --git a/src/gui/widgets/windowcontainer.h b/src/gui/widgets/windowcontainer.h
index 1da5a2cd..3e01bb36 100644
--- a/src/gui/widgets/windowcontainer.h
+++ b/src/gui/widgets/windowcontainer.h
@@ -37,7 +37,7 @@ class WindowContainer : public Container
          * Do GUI logic. This functions adds automatic deletion of objects that
          * volunteered to be deleted.
          */
-        void logic();
+        void logic() override;
 
         /**
          * Schedule a widget for deletion. It will be deleted at the start of
@@ -55,8 +55,8 @@ class WindowContainer : public Container
         /**
          * List of widgets that are scheduled to be deleted.
          */
-        typedef std::list<gcn::Widget*> Widgets;
-        typedef Widgets::iterator WidgetIterator;
+        using Widgets = std::list<gcn::Widget *>;
+        using WidgetIterator = Widgets::iterator;
         Widgets mDeathList;
 };
 
diff --git a/src/gui/windowmenu.cpp b/src/gui/windowmenu.cpp
index 9a53479e..5b13d0f3 100644
--- a/src/gui/windowmenu.cpp
+++ b/src/gui/windowmenu.cpp
@@ -46,7 +46,7 @@ extern Window *statusWindow;
 extern Window *socialWindow;
 
 WindowMenu::WindowMenu():
-    mEmotePopup(0)
+    mEmotePopup(nullptr)
 {
     int x = 0, h = 0;
 
@@ -84,7 +84,7 @@ WindowMenu::~WindowMenu()
 
 void WindowMenu::action(const gcn::ActionEvent &event)
 {
-    Window *window = 0;
+    Window *window = nullptr;
 
     if (event.getId() == ":-)")
     {
@@ -104,7 +104,7 @@ void WindowMenu::action(const gcn::ActionEvent &event)
         else
         {
             windowContainer->scheduleDelete(mEmotePopup);
-            mEmotePopup = 0;
+            mEmotePopup = nullptr;
         }
     }
     else if (event.getId() == "Status")
@@ -159,7 +159,7 @@ void WindowMenu::valueChanged(const gcn::SelectionEvent &event)
             Net::getPlayerHandler()->emote(emote);
 
         windowContainer->scheduleDelete(mEmotePopup);
-        mEmotePopup = 0;
+        mEmotePopup = nullptr;
     }
 }
 
@@ -180,7 +180,7 @@ void WindowMenu::addButton(const std::string& text, int &x, int &h,
                            const std::string& iconPath,
                            KeyboardConfig::KeyAction key)
 {
-    Button *btn = new Button("", text, this);
+    auto *btn = new Button("", text, this);
     if (!iconPath.empty() && btn->setButtonIcon(iconPath))
     {
         btn->setButtonPopupText(createShortcutCaption(text, key));
@@ -199,9 +199,9 @@ void WindowMenu::addButton(const std::string& text, int &x, int &h,
 
 void WindowMenu::updatePopUpCaptions()
 {
-    for (WidgetList::iterator it = mWidgets.begin(); it != mWidgets.end(); ++it)
+    for (auto it = mWidgets.begin(); it != mWidgets.end(); ++it)
     {
-        Button *button = dynamic_cast<Button*> (*it);
+        auto *button = dynamic_cast<Button*> (*it);
         if (!button)
             continue;
 
diff --git a/src/gui/windowmenu.h b/src/gui/windowmenu.h
index ed2ea8df..92b3b9b4 100644
--- a/src/gui/windowmenu.h
+++ b/src/gui/windowmenu.h
@@ -43,11 +43,11 @@ class WindowMenu : public Container,
 {
     public:
         WindowMenu();
-        ~WindowMenu();
+        ~WindowMenu() override;
 
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
-        void valueChanged(const gcn::SelectionEvent &event);
+        void valueChanged(const gcn::SelectionEvent &event) override;
 
         /**
          * Update the pop-up captions with new key shortcuts.
diff --git a/src/gui/worldselectdialog.cpp b/src/gui/worldselectdialog.cpp
index f6084f32..f2b31085 100644
--- a/src/gui/worldselectdialog.cpp
+++ b/src/gui/worldselectdialog.cpp
@@ -51,14 +51,14 @@ class WorldListModel : public gcn::ListModel
         {
         }
 
-        virtual ~WorldListModel() {}
+        ~WorldListModel() override {}
 
-        int getNumberOfElements()
+        int getNumberOfElements() override
         {
             return mWorlds.size();
         }
 
-        std::string getElementAt(int i)
+        std::string getElementAt(int i) override
         {
             const WorldInfo *si = mWorlds[i];
             return si->name + " (" + toString(si->online_users) + ")";
@@ -72,7 +72,7 @@ WorldSelectDialog::WorldSelectDialog(Worlds worlds):
 {
     mWorldListModel = new WorldListModel(worlds);
     mWorldList = new ListBox(mWorldListModel);
-    ScrollArea *worldsScroll = new ScrollArea(mWorldList);
+    auto *worldsScroll = new ScrollArea(mWorldList);
     mChangeLoginButton = new Button(_("Change Login"), "login", this);
     mChooseWorld = new Button(_("Choose World"), "world", this);
 
@@ -130,11 +130,11 @@ void WorldSelectDialog::keyPressed(gcn::KeyEvent &keyEvent)
 
     if (key.getValue() == Key::ESCAPE)
     {
-        action(gcn::ActionEvent(NULL, mChangeLoginButton->getActionEventId()));
+        action(gcn::ActionEvent(nullptr, mChangeLoginButton->getActionEventId()));
     }
     else if (key.getValue() == Key::ENTER)
     {
-        action(gcn::ActionEvent(NULL, mChooseWorld->getActionEventId()));
+        action(gcn::ActionEvent(nullptr, mChooseWorld->getActionEventId()));
     }
 }
 
diff --git a/src/gui/worldselectdialog.h b/src/gui/worldselectdialog.h
index 368b005b..f2b74582 100644
--- a/src/gui/worldselectdialog.h
+++ b/src/gui/worldselectdialog.h
@@ -45,16 +45,16 @@ class WorldSelectDialog : public Window, public gcn::ActionListener,
     public:
         WorldSelectDialog(Worlds worlds);
 
-        ~WorldSelectDialog();
+        ~WorldSelectDialog() override;
 
         /**
          * Called when receiving actions from the widgets.
          */
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 
-        void keyPressed(gcn::KeyEvent &keyEvent);
+        void keyPressed(gcn::KeyEvent &keyEvent) override;
 
-        void mouseClicked(gcn::MouseEvent &mouseEvent);
+        void mouseClicked(gcn::MouseEvent &mouseEvent) override;
 
     private:
         WorldListModel *mWorldListModel;
diff --git a/src/guild.cpp b/src/guild.cpp
index 714ca010..f21f015a 100644
--- a/src/guild.cpp
+++ b/src/guild.cpp
@@ -74,7 +74,7 @@ GuildMember *Guild::addMember(const std::string &name)
 
 GuildMember *Guild::getMember(int id) const
 {
-    MemberList::const_iterator itr = mMembers.begin(),
+    auto itr = mMembers.begin(),
                                itr_end = mMembers.end();
     while (itr != itr_end)
     {
@@ -83,12 +83,12 @@ GuildMember *Guild::getMember(int id) const
         ++itr;
     }
 
-    return NULL;
+    return nullptr;
 }
 
 GuildMember *Guild::getMember(const std::string &name) const
 {
-    MemberList::const_iterator itr = mMembers.begin(),
+    auto itr = mMembers.begin(),
                                itr_end = mMembers.end();
     while (itr != itr_end)
     {
@@ -99,12 +99,12 @@ GuildMember *Guild::getMember(const std::string &name) const
         ++itr;
     }
 
-    return NULL;
+    return nullptr;
 }
 
 void Guild::removeMember(GuildMember *member)
 {
-    MemberList::iterator itr = mMembers.begin(),
+    auto itr = mMembers.begin(),
                                itr_end = mMembers.end();
     while (itr != itr_end)
     {
@@ -119,7 +119,7 @@ void Guild::removeMember(GuildMember *member)
 
 void Guild::removeMember(int id)
 {
-    MemberList::iterator itr = mMembers.begin(),
+    auto itr = mMembers.begin(),
                                itr_end = mMembers.end();
     while (itr != itr_end)
     {
@@ -131,7 +131,7 @@ void Guild::removeMember(int id)
 
 void Guild::removeMember(const std::string &name)
 {
-    MemberList::iterator itr = mMembers.begin(),
+    auto itr = mMembers.begin(),
                                itr_end = mMembers.end();
     while (itr != itr_end)
     {
@@ -145,7 +145,7 @@ void Guild::removeMember(const std::string &name)
 
 void Guild::removeFromMembers()
 {
-    MemberList::iterator itr = mMembers.begin(),
+    auto itr = mMembers.begin(),
                                itr_end = mMembers.end();
     while(itr != itr_end)
     {
@@ -172,7 +172,7 @@ bool Guild::isMember(GuildMember *member) const
     if (member->mGuild != nullptr && member->mGuild != this)
         return false;
 
-    MemberList::const_iterator itr = mMembers.begin(),
+    auto itr = mMembers.begin(),
                                      itr_end = mMembers.end();
     while (itr != itr_end)
     {
@@ -189,7 +189,7 @@ bool Guild::isMember(GuildMember *member) const
 
 bool Guild::isMember(int id) const
 {
-    MemberList::const_iterator itr = mMembers.begin(),
+    auto itr = mMembers.begin(),
                                      itr_end = mMembers.end();
     while (itr != itr_end)
     {
@@ -203,7 +203,7 @@ bool Guild::isMember(int id) const
 
 bool Guild::isMember(const std::string &name) const
 {
-    MemberList::const_iterator itr = mMembers.begin(),
+    auto itr = mMembers.begin(),
                                      itr_end = mMembers.end();
     while (itr != itr_end)
     {
@@ -220,7 +220,7 @@ bool Guild::isMember(const std::string &name) const
 void Guild::getNames(std::vector<std::string> &names) const
 {
     names.clear();
-    MemberList::const_iterator it = mMembers.begin(),
+    auto it = mMembers.begin(),
                                      it_end = mMembers.end();
     while (it != it_end)
     {
@@ -231,7 +231,7 @@ void Guild::getNames(std::vector<std::string> &names) const
 
 Guild *Guild::getGuild(int id)
 {
-    GuildMap::iterator it = guilds.find(id);
+    auto it = guilds.find(id);
     if (it != guilds.end())
         return it->second;
 
diff --git a/src/guild.h b/src/guild.h
index 75c93d18..deee8e7b 100644
--- a/src/guild.h
+++ b/src/guild.h
@@ -129,11 +129,11 @@ public:
      * Get size of members list.
      * @return Returns the number of members in the guild.
      */
-    int getNumberOfElements() {
+    int getNumberOfElements() override {
         return mMembers.size();
     }
 
-    Avatar *getAvatarAt(int i);
+    Avatar *getAvatarAt(int i) override;
 
     /**
      * Get whether user can invite users to this guild.
@@ -157,7 +157,7 @@ public:
     static Guild *getGuild(int id);
 
 private:
-    typedef std::map<int, Guild*> GuildMap;
+    using GuildMap = std::map<int, Guild *>;
     static GuildMap guilds;
 
     /**
@@ -165,7 +165,7 @@ private:
      */
     Guild(short id);
 
-    typedef std::vector<GuildMember*> MemberList;
+    using MemberList = std::vector<GuildMember *>;
     MemberList mMembers;
     std::string mName;
     short mId;
diff --git a/src/imageparticle.h b/src/imageparticle.h
index cd98c2ba..ac677389 100644
--- a/src/imageparticle.h
+++ b/src/imageparticle.h
@@ -41,12 +41,12 @@ class ImageParticle : public Particle
          */
         ImageParticle(Map *map, Image *image);
 
-        ~ImageParticle();
+        ~ImageParticle() override;
 
         /**
          * Draws the particle image
          */
-        virtual bool draw(Graphics *graphics, int offsetX, int offsetY) const;
+        bool draw(Graphics *graphics, int offsetX, int offsetY) const override;
 
     protected:
         Image *mImage;   /**< The image used for this particle. */
diff --git a/src/imagesprite.h b/src/imagesprite.h
index 3ee8fc61..c9b5175e 100644
--- a/src/imagesprite.h
+++ b/src/imagesprite.h
@@ -32,35 +32,35 @@ class ImageSprite : public Sprite
 public:
     ImageSprite(Image *image);
 
-    ~ImageSprite();
+    ~ImageSprite() override;
 
-    bool reset()
+    bool reset() override
     { return false; }
 
-    bool play(std::string action)
+    bool play(std::string action) override
     { return false; }
 
-    bool update(int time)
+    bool update(int time) override
     { return false; }
 
-    bool draw(Graphics* graphics, int posX, int posY) const;
+    bool draw(Graphics* graphics, int posX, int posY) const override;
 
-    int getWidth() const
+    int getWidth() const override
     { return mImage->getWidth(); }
 
-    int getHeight() const
+    int getHeight() const override
     { return mImage->getHeight(); }
 
-    const Image* getImage() const
+    const Image* getImage() const override
     { return mImage; }
 
-    virtual bool setDirection(SpriteDirection direction)
+    bool setDirection(SpriteDirection direction) override
     { return false; }
 
     int getNumberOfLayers()
     { return 1; }
 
-    int getDuration() const
+    int getDuration() const override
     { return 0; }
 
 private:
diff --git a/src/inventory.cpp b/src/inventory.cpp
index a88ab96b..a7418175 100644
--- a/src/inventory.cpp
+++ b/src/inventory.cpp
@@ -42,7 +42,7 @@ Inventory::Inventory(Type type, int size):
     mUsed(0)
 {
     mItems = new Item*[mSize];
-    std::fill_n(mItems, mSize, (Item*) 0);
+    std::fill_n(mItems, mSize, (Item*) nullptr);
 }
 
 Inventory::~Inventory()
@@ -56,7 +56,7 @@ Inventory::~Inventory()
 Item *Inventory::getItem(int index) const
 {
     if (index < 0 || index >= mSize || !mItems[index] || mItems[index]->getQuantity() <= 0)
-        return 0;
+        return nullptr;
 
     return mItems[index];
 }
@@ -67,7 +67,7 @@ Item *Inventory::findItem(int itemId) const
         if (mItems[i] && mItems[i]->getId() == itemId)
             return mItems[i];
 
-    return NULL;
+    return nullptr;
 }
 
 void Inventory::addItem(int id, int quantity)
@@ -118,7 +118,7 @@ void Inventory::removeItem(int id)
 void Inventory::removeItemAt(int index)
 {
     delete mItems[index];
-    mItems[index] = 0;
+    mItems[index] = nullptr;
     if (mUsed > 0) {
         mUsed--;
         distributeSlotsChangedEvent();
diff --git a/src/inventory.h b/src/inventory.h
index 71950be5..b4253b72 100644
--- a/src/inventory.h
+++ b/src/inventory.h
@@ -135,7 +135,7 @@ class Inventory
         { return mType == INVENTORY; }
 
     protected:
-        typedef std::list<InventoryListener*> InventoryListenerList;
+        using InventoryListenerList = std::list<InventoryListener *>;
         InventoryListenerList mInventoryListeners;
 
         void distributeSlotsChangedEvent();
diff --git a/src/item.cpp b/src/item.cpp
index e2759d4b..d904a0ab 100644
--- a/src/item.cpp
+++ b/src/item.cpp
@@ -30,8 +30,8 @@
 #include "resources/theme.h"
 
 Item::Item(int id, int quantity, bool equipped):
-    mImage(0),
-    mDrawImage(0),
+    mImage(nullptr),
+    mDrawImage(nullptr),
     mQuantity(quantity),
     mEquipped(equipped), mInEquipment(false)
 {
diff --git a/src/keyboardconfig.cpp b/src/keyboardconfig.cpp
index 76168f66..dfd461db 100644
--- a/src/keyboardconfig.cpp
+++ b/src/keyboardconfig.cpp
@@ -233,5 +233,5 @@ bool KeyboardConfig::isKeyActive(int index) const
 
 void KeyboardConfig::refreshActiveKeys()
 {
-    mActiveKeys = SDL_GetKeyboardState(NULL);
+    mActiveKeys = SDL_GetKeyboardState(nullptr);
 }
diff --git a/src/localplayer.cpp b/src/localplayer.cpp
index d37c1364..ca639317 100644
--- a/src/localplayer.cpp
+++ b/src/localplayer.cpp
@@ -61,22 +61,22 @@
 
 const int AWAY_LIMIT_TIMER = 60;
 
-LocalPlayer *local_player = 0;
+LocalPlayer *local_player = nullptr;
 
 LocalPlayer::LocalPlayer(int id, int subtype):
-    Being(id, PLAYER, subtype, 0),
+    Being(id, PLAYER, subtype, nullptr),
     mAttackRange(-1),
     mTargetTime(-1),
     mLastTargetTime(-1),
-    mTarget(0),
-    mPickUpTarget(0),
+    mTarget(nullptr),
+    mPickUpTarget(nullptr),
     mGoingToTarget(false), mKeepAttacking(false),
     mLastActionTime(-1),
     mWalkingDir(0),
     mPathSetByMouse(false),
     mMessageTime(0),
     mShowIp(false),
-    mAwayDialog(0),
+    mAwayDialog(nullptr),
     mAfkTime(0),
     mAwayMode(false)
 {
@@ -188,7 +188,7 @@ void LocalPlayer::logic()
         && withinRange(mPickUpTarget, Net::getGameHandler()->getPickupRange()))
     {
         Net::getPlayerHandler()->pickUp(mPickUpTarget);
-        mPickUpTarget = 0;
+        mPickUpTarget = nullptr;
     }
 
     Being::logic();
@@ -199,7 +199,7 @@ void LocalPlayer::setAction(Action action, int attackId)
     if (action == DEAD)
     {
         mLastTargetTime = -1;
-        setTarget(0);
+        setTarget(nullptr);
     }
 
     Being::setAction(action, attackId);
@@ -607,8 +607,8 @@ void LocalPlayer::inviteToGuild(Being *being)
 
     // TODO: Allow user to choose which guild to invite being to
     // For now, just invite to the first guild you have permissions to invite with
-    std::map<int, Guild*>::iterator itr = mGuilds.begin();
-    std::map<int, Guild*>::iterator itr_end = mGuilds.end();
+    auto itr = mGuilds.begin();
+    auto itr_end = mGuilds.end();
     for (; itr != itr_end; ++itr)
     {
         if (checkInviteRights(itr->second->getName()))
@@ -633,7 +633,7 @@ void LocalPlayer::pickUp(FloorItem *item)
         // if the player does not move
         if (getDestination() == getPosition())
             lookAt(item->getPosition());
-        mPickUpTarget = 0;
+        mPickUpTarget = nullptr;
     }
     else
     {
@@ -669,7 +669,7 @@ void LocalPlayer::setTarget(Being *target)
         mTargetTime = -1;
     }
 
-    Being *oldTarget = 0;
+    Being *oldTarget = nullptr;
     if (mTarget)
     {
         mTarget->untarget();
@@ -895,7 +895,7 @@ void LocalPlayer::stopAttack()
     {
         if (mAction == ATTACK)
             setAction(STAND);
-        setTarget(0);
+        setTarget(nullptr);
     }
     mLastTargetTime = -1;
     cancelGoToTarget();
@@ -1013,10 +1013,10 @@ void LocalPlayer::event(Event::Channel channel, const Event &event)
             ActorSprite *actor = event.getActor("source");
 
             if (mPickUpTarget == actor)
-                mPickUpTarget = 0;
+                mPickUpTarget = nullptr;
 
             if (mTarget == actor)
-                mTarget = 0;
+                mTarget = nullptr;
         }
     }
     else if (channel == Event::AttributesChannel)
@@ -1073,7 +1073,7 @@ void LocalPlayer::changeAwayMode()
         mAwayDialog->addActionListener(mAwayListener);
     }
 
-    mAwayDialog = 0;
+    mAwayDialog = nullptr;
 }
 
 void LocalPlayer::setAway(const std::string &message)
diff --git a/src/localplayer.h b/src/localplayer.h
index 0d7b6077..7a9020d6 100644
--- a/src/localplayer.h
+++ b/src/localplayer.h
@@ -41,7 +41,7 @@ class OkDialog;
 class AwayListener : public gcn::ActionListener
 {
     public:
-        void action(const gcn::ActionEvent &event);
+        void action(const gcn::ActionEvent &event) override;
 };
 
 /**
@@ -66,11 +66,11 @@ class LocalPlayer : public Being
     public:
         LocalPlayer(int id= 65535, int subtype = 0);
 
-        ~LocalPlayer();
+        ~LocalPlayer() override;
 
-        virtual void logic();
+        void logic() override;
 
-        virtual void setAction(Action action, int attackId = 1);
+        void setAction(Action action, int attackId = 1) override;
 
         /**
          * Check the player has permission to invite users to specific guild
@@ -95,7 +95,7 @@ class LocalPlayer : public Being
         int getAttackRange() const
         { return mAttackRange; }
 
-        void attack(Being *target = NULL, bool keep = false);
+        void attack(Being *target = nullptr, bool keep = false);
 
         void setGMLevel(int level);
 
@@ -197,7 +197,7 @@ class LocalPlayer : public Being
         void addMessageToQueue(const std::string &message,
                                int color = UserPalette::EXP_INFO);
 
-        void event(Event::Channel channel, const Event &event);
+        void event(Event::Channel channel, const Event &event) override;
 
         /**
          * Tells the engine wether to check
@@ -252,7 +252,7 @@ class LocalPlayer : public Being
         int mWalkingDir;      /**< The direction the player is walking in. */
         bool mPathSetByMouse; /**< Tells if the path was set using mouse */
 
-        typedef std::pair<std::string, int> MessagePair;
+        using MessagePair = std::pair<std::string, int>;
         /** Queued messages*/
         std::list<MessagePair> mMessages;
         int mMessageTime;
diff --git a/src/log.cpp b/src/log.cpp
index eae0a82b..74246b7e 100644
--- a/src/log.cpp
+++ b/src/log.cpp
@@ -71,7 +71,7 @@ void Logger::log(const char *log_text, ...)
 
     // Get the current system time
     timeval tv;
-    gettimeofday(&tv, NULL);
+    gettimeofday(&tv, nullptr);
 
     // Print the log entry
     std::stringstream timeStr;
diff --git a/src/main.cpp b/src/main.cpp
index e3225d63..eecb60e7 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -77,28 +77,28 @@ static void parseOptions(int argc, char *argv[], Client::Options &options)
     const char *optstring = "hvud:U:P:Dc:s:p:C:";
 
     const struct option long_options[] = {
-        { "config-dir",     required_argument, 0, 'C' },
-        { "data",           required_argument, 0, 'd' },
-        { "default",        no_argument,       0, 'D' },
-        { "password",       required_argument, 0, 'P' },
-        { "character",      required_argument, 0, 'c' },
-        { "help",           no_argument,       0, 'h' },
-        { "localdata-dir",  required_argument, 0, 'L' },
-        { "update-host",    required_argument, 0, 'H' },
-        { "port",           required_argument, 0, 'p' },
-        { "server",         required_argument, 0, 's' },
-        { "skip-update",    no_argument,       0, 'u' },
-        { "username",       required_argument, 0, 'U' },
-        { "no-opengl",      no_argument,       0, 'O' },
-        { "chat-log-dir",   required_argument, 0, 'T' },
-        { "version",        no_argument,       0, 'v' },
-        { "screenshot-dir", required_argument, 0, 'i' },
-        { 0 }
+        { "config-dir",     required_argument, nullptr, 'C' },
+        { "data",           required_argument, nullptr, 'd' },
+        { "default",        no_argument,       nullptr, 'D' },
+        { "password",       required_argument, nullptr, 'P' },
+        { "character",      required_argument, nullptr, 'c' },
+        { "help",           no_argument,       nullptr, 'h' },
+        { "localdata-dir",  required_argument, nullptr, 'L' },
+        { "update-host",    required_argument, nullptr, 'H' },
+        { "port",           required_argument, nullptr, 'p' },
+        { "server",         required_argument, nullptr, 's' },
+        { "skip-update",    no_argument,       nullptr, 'u' },
+        { "username",       required_argument, nullptr, 'U' },
+        { "no-opengl",      no_argument,       nullptr, 'O' },
+        { "chat-log-dir",   required_argument, nullptr, 'T' },
+        { "version",        no_argument,       nullptr, 'v' },
+        { "screenshot-dir", required_argument, nullptr, 'i' },
+        { nullptr }
     };
 
     while (optind < argc)
     {
-        int result = getopt_long(argc, argv, optstring, long_options, NULL);
+        int result = getopt_long(argc, argv, optstring, long_options, nullptr);
 
         if (result == -1)
             break;
diff --git a/src/map.cpp b/src/map.cpp
index b9bcb284..76ddc56a 100644
--- a/src/map.cpp
+++ b/src/map.cpp
@@ -63,7 +63,7 @@ struct Location
 };
 
 TileAnimation::TileAnimation(Animation *ani):
-    mLastImage(NULL)
+    mLastImage(nullptr)
 {
     mAnimation = new SimpleAnimation(ani);
 }
@@ -85,7 +85,7 @@ void TileAnimation::update(int ticks)
     Image *img = mAnimation->getCurrentImage();
     if (img != mLastImage)
     {
-        for (std::list<std::pair<MapLayer*, int> >::iterator i =
+        for (auto i =
              mAffected.begin(); i != mAffected.end(); i++)
         {
             i->first->setTile(i->second, img);
@@ -103,7 +103,7 @@ MapLayer::MapLayer(int x, int y, int width, int height, bool isFringeLayer,
 {
     const int size = mWidth * mHeight;
     mTiles = new Image*[size];
-    std::fill_n(mTiles, size, (Image*) 0);
+    std::fill_n(mTiles, size, (Image*) nullptr);
 }
 
 MapLayer::~MapLayer()
@@ -132,7 +132,7 @@ void MapLayer::draw(Graphics *graphics,
     if (endX > mWidth) endX = mWidth;
     if (endY > mHeight) endY = mHeight;
 
-    Actors::const_iterator ai = actors.begin();
+    auto ai = actors.begin();
 
     int dx = (mX * mMap->getTileWidth()) - scrollX;
     int dy = (mY * mMap->getTileHeight()) - scrollY + mMap->getTileHeight();
@@ -336,7 +336,7 @@ bool actorCompare(const Actor *a, const Actor *b)
 void Map::update(int ticks)
 {
     // Update animated tiles
-    for (std::map<int, TileAnimation*>::iterator iAni = mTileAnimations.begin();
+    for (auto iAni = mTileAnimations.begin();
          iAni != mTileAnimations.end();
          iAni++)
     {
@@ -538,7 +538,7 @@ void Map::drawAmbientLayers(Graphics *graphics, LayerType type,
     }
 
     // Draw overlays
-    for (std::list<AmbientLayer*>::iterator i = layers->begin();
+    for (auto i = layers->begin();
          i != layers->end(); i++)
     {
         (*i)->draw(graphics, graphics->getWidth(), graphics->getHeight());
@@ -551,8 +551,8 @@ void Map::drawAmbientLayers(Graphics *graphics, LayerType type,
 
 Tileset *Map::getTilesetWithGid(unsigned gid) const
 {
-    Tileset *s = NULL;
-    for (Tilesets::const_iterator it = mTilesets.begin(),
+    Tileset *s = nullptr;
+    for (auto it = mTilesets.begin(),
          it_end = mTilesets.end(); it < it_end && (*it)->getFirstGid() <= gid;
          it++)
         s = *it;
@@ -739,7 +739,7 @@ Path Map::findTilePath(int startPixelX, int startPixelY, int endPixelX,
         return myPath;
 
     // Convert the map path to pixels from the tile position
-    Path::iterator it = myPath.begin();
+    auto it = myPath.begin();
     while (it != myPath.end())
     {
         // The new pixel position will be the tile center.
@@ -777,7 +777,7 @@ Path Map::findPixelPath(int startPixelX, int startPixelY, int endPixelX,
 
     // Convert the map path to pixels over tiles
     // And add interpolation between the starting and ending offsets
-    Path::iterator it = myPath.begin();
+    auto it = myPath.begin();
     int i = 0;
     while (it != myPath.end())
     {
@@ -1022,7 +1022,7 @@ void Map::initializeParticleEffects(Particle *particleEngine)
 
     if (config.getBoolValue("particleeffects"))
     {
-        for (std::list<ParticleEffectData>::iterator i = particleEffects.begin();
+        for (auto i = particleEffects.begin();
              i != particleEffects.end();
              i++
             )
@@ -1038,6 +1038,6 @@ void Map::initializeParticleEffects(Particle *particleEngine)
 
 TileAnimation *Map::getAnimationForGid(int gid) const
 {
-    std::map<int, TileAnimation*>::const_iterator i = mTileAnimations.find(gid);
+    auto i = mTileAnimations.find(gid);
     return (i == mTileAnimations.end()) ? NULL : i->second;
 }
diff --git a/src/map.h b/src/map.h
index 2338452c..2900b4d1 100644
--- a/src/map.h
+++ b/src/map.h
@@ -37,8 +37,8 @@ class Particle;
 class SimpleAnimation;
 class Tileset;
 
-typedef std::vector<Tileset*> Tilesets;
-typedef std::vector<MapLayer*> Layers;
+using Tilesets = std::vector<Tileset *>;
+using Layers = std::vector<MapLayer *>;
 
 const int DEFAULT_TILE_LENGTH = 32;
 
@@ -181,7 +181,7 @@ class Map : public Properties
          */
         Map(int width, int height, int tileWidth, int tileHeight);
 
-        ~Map();
+        ~Map() override;
 
         /**
          * Initialize ambient layers. Has to be called after all the properties
diff --git a/src/net/charhandler.h b/src/net/charhandler.h
index 1835ceb9..4b108cac 100644
--- a/src/net/charhandler.h
+++ b/src/net/charhandler.h
@@ -40,7 +40,7 @@ struct Character
 {
     Character() :
         slot(0),
-        dummy(0)
+        dummy(nullptr)
     {
     }
 
@@ -54,7 +54,7 @@ struct Character
     PlayerInfoBackend data;
 };
 
-typedef std::list<Character*> Characters;
+using Characters = std::list<Character *>;
 
 class CharHandler
 {
@@ -97,9 +97,9 @@ class CharHandler
 
     protected:
         CharHandler():
-            mSelectedCharacter(0),
-            mCharSelectDialog(0),
-            mCharCreateDialog(0)
+            mSelectedCharacter(nullptr),
+            mCharSelectDialog(nullptr),
+            mCharCreateDialog(nullptr)
         {}
 
         void updateCharSelectDialog();
diff --git a/src/net/download.cpp b/src/net/download.cpp
index 61cdf114..d15eb18d 100644
--- a/src/net/download.cpp
+++ b/src/net/download.cpp
@@ -66,11 +66,11 @@ Download::Download(void *ptr, const std::string &url,
         mPtr(ptr),
         mUrl(url),
         mFileName(""),
-        mWriteFunction(NULL),
+        mWriteFunction(nullptr),
         mUpdateFunction(updateFunction),
-        mThread(NULL),
-        mCurl(NULL),
-        mHeaders(NULL)
+        mThread(nullptr),
+        mCurl(nullptr),
+        mHeaders(nullptr)
 
 {
     mError = (char*) malloc(CURL_ERROR_SIZE);
@@ -145,8 +145,8 @@ void Download::cancel()
     mOptions.cancel = true;
     if (mThread && SDL_GetThreadID(mThread) != 0)
     {
-        SDL_WaitThread(mThread, NULL);
-        mThread = NULL;
+        SDL_WaitThread(mThread, nullptr);
+        mThread = nullptr;
     }
 }
 
@@ -158,7 +158,7 @@ char *Download::getError()
 int Download::downloadProgress(void *clientp, double dltotal, double dlnow,
                      double ultotal, double ulnow)
 {
-    Download *d = reinterpret_cast<Download*>(clientp);
+    auto *d = reinterpret_cast<Download*>(clientp);
 
     if (d->mOptions.cancel)
     {
@@ -174,7 +174,7 @@ int Download::downloadThread(void *ptr)
 {
     int attempts = 0;
     bool complete = false;
-    Download *d = reinterpret_cast<Download*>(ptr);
+    auto *d = reinterpret_cast<Download*>(ptr);
     CURLcode res;
     std::string outFilename;
 
@@ -189,13 +189,13 @@ int Download::downloadThread(void *ptr)
 
     while (attempts < 3 && !complete && !d->mOptions.cancel)
     {
-        FILE *file = NULL;
+        FILE *file = nullptr;
 
         d->mUpdateFunction(d->mPtr, DOWNLOAD_STATUS_STARTING, 0, 0);
 
         if (d->mOptions.cancel)
         {
-            d->mThread = NULL;
+            d->mThread = nullptr;
             return 0;
         }
 
@@ -309,7 +309,7 @@ int Download::downloadThread(void *ptr)
         }
         if (d->mOptions.cancel)
         {
-            d->mThread = NULL;
+            d->mThread = nullptr;
             return 0;
         }
         attempts++;
@@ -328,7 +328,7 @@ int Download::downloadThread(void *ptr)
         d->mUpdateFunction(d->mPtr, DOWNLOAD_STATUS_COMPLETE, 0, 0);
     }
 
-    d->mThread = NULL;
+    d->mThread = nullptr;
     return 0;
 }
 
diff --git a/src/net/download.h b/src/net/download.h
index 26810f3f..b3501363 100644
--- a/src/net/download.h
+++ b/src/net/download.h
@@ -35,15 +35,13 @@ enum DownloadStatus
     DOWNLOAD_STATUS_COMPLETE
 };
 
-typedef int (*DownloadUpdate)(void *ptr, DownloadStatus status,
-                              size_t total, size_t remaining);
+using DownloadUpdate = int (*)(void *, DownloadStatus, size_t, size_t);
 
 // Matches what CURL expects
-typedef size_t (*WriteFunction)( void *ptr, size_t size, size_t nmemb,
-                                 void *stream);
+using WriteFunction = size_t (*)(void *, size_t, size_t, void *);
 
 struct SDL_Thread;
-typedef void CURL;
+using CURL = void;
 struct curl_slist;
 
 namespace Net {
diff --git a/src/net/manaserv/adminhandler.h b/src/net/manaserv/adminhandler.h
index 83fbb854..1edcf6b6 100644
--- a/src/net/manaserv/adminhandler.h
+++ b/src/net/manaserv/adminhandler.h
@@ -33,27 +33,27 @@ class AdminHandler : public Net::AdminHandler, public MessageHandler
     public:
         AdminHandler();
 
-        void handleMessage(MessageIn &msg);
+        void handleMessage(MessageIn &msg) override;
 
-        void announce(const std::string &text);
+        void announce(const std::string &text) override;
 
-        void localAnnounce(const std::string &text);
+        void localAnnounce(const std::string &text) override;
 
-        void hide(bool hide);
+        void hide(bool hide) override;
 
-        void kick(int playerId);
+        void kick(int playerId) override;
 
-        void kick(const std::string &name);
+        void kick(const std::string &name) override;
 
-        void ban(int playerId);
+        void ban(int playerId) override;
 
-        void ban(const std::string &name);
+        void ban(const std::string &name) override;
 
-        void unban(int playerId);
+        void unban(int playerId) override;
 
-        void unban(const std::string &name);
+        void unban(const std::string &name) override;
 
-        void mute(int playerId, int type, int limit);
+        void mute(int playerId, int type, int limit) override;
 };
 
 } // namespace ManaServ
diff --git a/src/net/manaserv/beinghandler.cpp b/src/net/manaserv/beinghandler.cpp
index 61b4ef81..6be90d51 100644
--- a/src/net/manaserv/beinghandler.cpp
+++ b/src/net/manaserv/beinghandler.cpp
@@ -113,10 +113,10 @@ void BeingHandler::handleBeingEnterMessage(MessageIn &msg)
 {
     int type = msg.readInt8();
     int id = msg.readInt16();
-    Being::Action action = (Being::Action)msg.readInt8();
+    auto action = (Being::Action)msg.readInt8();
     int px = msg.readInt16();
     int py = msg.readInt16();
-    BeingDirection direction = (BeingDirection)msg.readInt8();
+    auto direction = (BeingDirection)msg.readInt8();
     Gender gender;
     int genderAsInt = msg.readInt8();
     if (genderAsInt == ::GENDER_FEMALE)
@@ -241,7 +241,7 @@ void BeingHandler::handleBeingsMoveMessage(MessageIn &msg)
 void BeingHandler::handleBeingAttackMessage(MessageIn &msg)
 {
     Being *being = actorSpriteManager->findBeing(msg.readInt16());
-    const BeingDirection direction = (BeingDirection) msg.readInt8();
+    const auto direction = (BeingDirection) msg.readInt8();
     const int attackId = msg.readInt8();
 
     if (!being)
@@ -260,7 +260,7 @@ void BeingHandler::handleBeingsDamageMessage(MessageIn &msg)
         int damage = msg.readInt16();
         if (being)
         {
-            being->takeDamage(0, damage, Being::HIT);
+            being->takeDamage(nullptr, damage, Being::HIT);
         }
     }
 }
@@ -268,7 +268,7 @@ void BeingHandler::handleBeingsDamageMessage(MessageIn &msg)
 void BeingHandler::handleBeingActionChangeMessage(MessageIn &msg)
 {
     Being *being = actorSpriteManager->findBeing(msg.readInt16());
-    Being::Action action = (Being::Action) msg.readInt8();
+    auto action = (Being::Action) msg.readInt8();
     if (!being)
         return;
 
@@ -299,7 +299,7 @@ void BeingHandler::handleBeingActionChangeMessage(MessageIn &msg)
         };
         std::string message(deadMsg[rand()%13]);
         message.append(std::string(" ") + _("Press OK to respawn."));
-        OkDialog *dlg = new OkDialog(_("You Died"), message, false);
+        auto *dlg = new OkDialog(_("You Died"), message, false);
         dlg->addActionListener(&(ManaServ::respawnListener));
     }
 }
diff --git a/src/net/manaserv/beinghandler.h b/src/net/manaserv/beinghandler.h
index 94cf20c4..3d80f45f 100644
--- a/src/net/manaserv/beinghandler.h
+++ b/src/net/manaserv/beinghandler.h
@@ -43,7 +43,7 @@ class BeingHandler : public MessageHandler
     public:
         BeingHandler();
 
-        void handleMessage(MessageIn &msg);
+        void handleMessage(MessageIn &msg) override;
 
     private:
         void handleBeingAttackMessage(MessageIn &msg);
diff --git a/src/net/manaserv/buysellhandler.cpp b/src/net/manaserv/buysellhandler.cpp
index 2e7cf26d..5395adb8 100644
--- a/src/net/manaserv/buysellhandler.cpp
+++ b/src/net/manaserv/buysellhandler.cpp
@@ -57,7 +57,7 @@ void BuySellHandler::handleMessage(MessageIn &msg)
     {
         case GPMSG_NPC_BUY:
         {
-            BuyDialog* dialog = new BuyDialog(npcId);
+            auto* dialog = new BuyDialog(npcId);
 
             dialog->reset();
             dialog->setMoney(PlayerInfo::getAttribute(MONEY));
@@ -74,7 +74,7 @@ void BuySellHandler::handleMessage(MessageIn &msg)
 
         case GPMSG_NPC_SELL:
         {
-            SellDialog* dialog = new SellDialog(npcId);
+            auto* dialog = new SellDialog(npcId);
 
             dialog->reset();
             dialog->setMoney(PlayerInfo::getAttribute(MONEY));
diff --git a/src/net/manaserv/buysellhandler.h b/src/net/manaserv/buysellhandler.h
index 88432842..f0ae9ab3 100644
--- a/src/net/manaserv/buysellhandler.h
+++ b/src/net/manaserv/buysellhandler.h
@@ -31,7 +31,7 @@ class BuySellHandler : public MessageHandler
     public:
         BuySellHandler();
 
-        void handleMessage(MessageIn &msg);
+        void handleMessage(MessageIn &msg) override;
 };
 
 } // namespace ManaServ
diff --git a/src/net/manaserv/charhandler.cpp b/src/net/manaserv/charhandler.cpp
index ece8e108..d5a5497e 100644
--- a/src/net/manaserv/charhandler.cpp
+++ b/src/net/manaserv/charhandler.cpp
@@ -187,7 +187,7 @@ void CharHandler::handleCharacterCreateResponse(MessageIn &msg)
         if (mCharCreateDialog)
         {
             mCharCreateDialog->scheduleDelete();
-            mCharCreateDialog = 0;
+            mCharCreateDialog = nullptr;
         }
     }
 }
@@ -228,7 +228,7 @@ void CharHandler::handleCharacterDeleteResponse(MessageIn &msg)
         }
         new OkDialog(_("Error"), errorMessage);
     }
-    mSelectedCharacter = 0;
+    mSelectedCharacter = nullptr;
     unlockCharSelectDialog();
 }
 
@@ -254,7 +254,7 @@ void CharHandler::handleCharacterSelectResponse(MessageIn &msg)
         // Prevent the selected local player from being deleted
         local_player = mSelectedCharacter->dummy;
         PlayerInfo::setBackend(mSelectedCharacter->data);
-        mSelectedCharacter->dummy = 0;
+        mSelectedCharacter->dummy = nullptr;
 
         Client::setState(STATE_CONNECT_GAME);
     }
@@ -386,7 +386,7 @@ void CharHandler::updateCharacters()
     {
         const CachedCharacterInfo &info = mCachedCharacterInfos.at(i);
 
-        Net::Character *character = new Net::Character;
+        auto *character = new Net::Character;
         character->slot = info.slot;
         LocalPlayer *player = character->dummy = new LocalPlayer;
         player->setName(info.name);
@@ -397,7 +397,7 @@ void CharHandler::updateCharacters()
         character->data.mAttributes[CHAR_POINTS] = info.characterPoints;
         character->data.mAttributes[CORR_POINTS] = info.correctionPoints;
 
-        for (CachedAttributes::const_iterator it = info.attribute.begin(),
+        for (auto it = info.attribute.begin(),
              it_end = info.attribute.end(); it != it_end; it++)
         {
             character->data.mStats[i].base = it->second.base;
@@ -412,8 +412,8 @@ void CharHandler::updateCharacters()
 
 void CharHandler::clear()
 {
-    setCharCreateDialog(0);
-    setCharSelectDialog(0);
+    setCharCreateDialog(nullptr);
+    setCharSelectDialog(nullptr);
 
     mCachedCharacterInfos.clear();
     updateCharacters();
diff --git a/src/net/manaserv/charhandler.h b/src/net/manaserv/charhandler.h
index d2159204..262d8a01 100644
--- a/src/net/manaserv/charhandler.h
+++ b/src/net/manaserv/charhandler.h
@@ -42,43 +42,43 @@ class CharHandler : public MessageHandler, public Net::CharHandler
     public:
         CharHandler();
 
-        ~CharHandler();
+        ~CharHandler() override;
 
-        void handleMessage(MessageIn &msg);
+        void handleMessage(MessageIn &msg) override;
 
-        void setCharSelectDialog(CharSelectDialog *window);
+        void setCharSelectDialog(CharSelectDialog *window) override;
 
         /**
          * Sets the character create dialog. The handler will clean up this
          * dialog when a new character is succesfully created, and will unlock
          * the dialog when a new character failed to be created.
          */
-        void setCharCreateDialog(CharCreateDialog *window);
+        void setCharCreateDialog(CharCreateDialog *window) override;
 
-        void requestCharacters();
+        void requestCharacters() override;
 
-        void chooseCharacter(Net::Character *character);
+        void chooseCharacter(Net::Character *character) override;
 
         void newCharacter(const std::string &name, int slot,
                           bool gender, int hairstyle, int hairColor,
-                          const std::vector<int> &stats);
+                          const std::vector<int> &stats) override;
 
-        void deleteCharacter(Net::Character *character);
+        void deleteCharacter(Net::Character *character) override;
 
-        void switchCharacter();
+        void switchCharacter() override;
 
-        unsigned int baseSprite() const;
+        unsigned int baseSprite() const override;
 
-        unsigned int hairSprite() const;
+        unsigned int hairSprite() const override;
 
-        unsigned int maxSprite() const;
+        unsigned int maxSprite() const override;
 
         // No limitation on Manaserv
-        int getCharCreateMaxHairColorId() const
+        int getCharCreateMaxHairColorId() const override
         { return 0; }
 
         // No limitation on Manaserv
-        int getCharCreateMaxHairStyleId() const
+        int getCharCreateMaxHairStyleId() const override
         { return 0; }
 
         void clear();
@@ -94,7 +94,7 @@ class CharHandler : public MessageHandler, public Net::CharHandler
             double mod;
         };
 
-        typedef std::map<int, CachedAttrbiute> CachedAttributes;
+        using CachedAttributes = std::map<int, CachedAttrbiute>;
 
         struct CachedCharacterInfo {
             int slot;
diff --git a/src/net/manaserv/chathandler.cpp b/src/net/manaserv/chathandler.cpp
index d777fa35..6d0b6b4e 100644
--- a/src/net/manaserv/chathandler.cpp
+++ b/src/net/manaserv/chathandler.cpp
@@ -184,7 +184,7 @@ void ChatHandler::handleEnterChannelResponse(MessageIn &msg)
         short channelId = msg.readInt16();
         std::string channelName = msg.readString();
         std::string announcement = msg.readString();
-        Channel *channel = new Channel(channelId, channelName, announcement);
+        auto *channel = new Channel(channelId, channelName, announcement);
         channelManager->addChannel(channel);
         ChatTab *tab = channel->getTab();
         tab->chatLog(strprintf(_("Topic: %s"), announcement.c_str()), BY_CHANNEL);
diff --git a/src/net/manaserv/chathandler.h b/src/net/manaserv/chathandler.h
index 7ae4227b..f9602407 100644
--- a/src/net/manaserv/chathandler.h
+++ b/src/net/manaserv/chathandler.h
@@ -37,7 +37,7 @@ class ChatHandler : public MessageHandler, public Net::ChatHandler
         /**
          * Handle the given message appropriately.
          */
-        void handleMessage(MessageIn &msg);
+        void handleMessage(MessageIn &msg) override;
 
         void connect();
 
@@ -45,31 +45,31 @@ class ChatHandler : public MessageHandler, public Net::ChatHandler
 
         void disconnect();
 
-        void talk(const std::string &text);
+        void talk(const std::string &text) override;
 
-        void me(const std::string &text);
+        void me(const std::string &text) override;
 
         void privateMessage(const std::string &recipient,
-                            const std::string &text);
+                            const std::string &text) override;
 
-        void channelList();
+        void channelList() override;
 
         void enterChannel(const std::string &channel,
-                          const std::string &password);
+                          const std::string &password) override;
 
-        void quitChannel(int channelId);
+        void quitChannel(int channelId) override;
 
-        void sendToChannel(int channelId, const std::string &text);
+        void sendToChannel(int channelId, const std::string &text) override;
 
-        void userList(const std::string &channel);
+        void userList(const std::string &channel) override;
 
-        void setChannelTopic(int channelId, const std::string &text);
+        void setChannelTopic(int channelId, const std::string &text) override;
 
-        void setUserMode(int channelId, const std::string &name, int mode);
+        void setUserMode(int channelId, const std::string &name, int mode) override;
 
-        void kickUser(int channelId, const std::string &name);
+        void kickUser(int channelId, const std::string &name) override;
 
-        void who();
+        void who() override;
 
     private:
         /**
diff --git a/src/net/manaserv/connection.cpp b/src/net/manaserv/connection.cpp
index 5d869b9d..4bc57695 100644
--- a/src/net/manaserv/connection.cpp
+++ b/src/net/manaserv/connection.cpp
@@ -32,7 +32,7 @@ namespace ManaServ
 {
 
 Connection::Connection(ENetHost *client):
-    mConnection(0), mClient(client)
+    mConnection(nullptr), mClient(client)
 {
     mPort = 0;
     connections++;
@@ -83,7 +83,7 @@ void Connection::disconnect()
     enet_host_flush(mClient);
     enet_peer_reset(mConnection);
 
-    mConnection = 0;
+    mConnection = nullptr;
 }
 
 bool Connection::isConnected()
diff --git a/src/net/manaserv/effecthandler.h b/src/net/manaserv/effecthandler.h
index f5f31b11..268e2725 100644
--- a/src/net/manaserv/effecthandler.h
+++ b/src/net/manaserv/effecthandler.h
@@ -31,7 +31,7 @@ class EffectHandler : public MessageHandler
     public:
         EffectHandler();
 
-        void handleMessage(MessageIn &msg);
+        void handleMessage(MessageIn &msg) override;
 
     private:
         void handleCreateEffectPos(MessageIn &msg);
diff --git a/src/net/manaserv/gamehandler.h b/src/net/manaserv/gamehandler.h
index 454cae43..2bc56ef0 100644
--- a/src/net/manaserv/gamehandler.h
+++ b/src/net/manaserv/gamehandler.h
@@ -36,32 +36,32 @@ class GameHandler : public MessageHandler, public Net::GameHandler
     public:
         GameHandler();
 
-        void handleMessage(MessageIn &msg);
+        void handleMessage(MessageIn &msg) override;
 
-        void connect();
+        void connect() override;
 
-        bool isConnected();
+        bool isConnected() override;
 
-        void disconnect();
+        void disconnect() override;
 
-        void who();
+        void who() override;
 
         void quit(bool reconnectAccount);
 
-        void quit() { quit(false); }
+        void quit() override { quit(false); }
 
-        bool removeDeadBeings() const { return false; }
+        bool removeDeadBeings() const override { return false; }
 
         void clear();
 
         void gameLoading();
 
         /** The ManaServ protocol doesn't use the MP status bar. */
-        bool canUseMagicBar() const { return false; }
+        bool canUseMagicBar() const override { return false; }
 
-        int getPickupRange() const { return PICKUP_RANGE; }
+        int getPickupRange() const override { return PICKUP_RANGE; }
 
-        int getNpcTalkRange() const { return NPC_TALK_RANGE; }
+        int getNpcTalkRange() const override { return NPC_TALK_RANGE; }
 };
 
 } // namespace ManaServ
diff --git a/src/net/manaserv/generalhandler.cpp b/src/net/manaserv/generalhandler.cpp
index 1e39410c..aa62dff1 100644
--- a/src/net/manaserv/generalhandler.cpp
+++ b/src/net/manaserv/generalhandler.cpp
@@ -61,9 +61,9 @@ extern ManaServ::LoginHandler *loginHandler;
 
 namespace ManaServ {
 
-Connection *accountServerConnection = 0;
-Connection *chatServerConnection = 0;
-Connection *gameServerConnection = 0;
+Connection *accountServerConnection = nullptr;
+Connection *chatServerConnection = nullptr;
+Connection *gameServerConnection = nullptr;
 std::string netToken = "";
 ServerInfo gameServer;
 ServerInfo chatServer;
@@ -181,7 +181,7 @@ void GeneralHandler::event(Event::Channel channel,
 
             if (newState == STATE_GAME)
             {
-                GameHandler *game = static_cast<GameHandler*>(Net::getGameHandler());
+                auto *game = static_cast<GameHandler*>(Net::getGameHandler());
                 game->gameLoading();
             }
         }
diff --git a/src/net/manaserv/generalhandler.h b/src/net/manaserv/generalhandler.h
index ce511587..582c1796 100644
--- a/src/net/manaserv/generalhandler.h
+++ b/src/net/manaserv/generalhandler.h
@@ -36,17 +36,17 @@ class GeneralHandler : public Net::GeneralHandler, public EventListener
     public:
         GeneralHandler();
 
-        void load();
+        void load() override;
 
-        void reload();
+        void reload() override;
 
-        void unload();
+        void unload() override;
 
-        void flushNetwork();
+        void flushNetwork() override;
 
-        void clearHandlers();
+        void clearHandlers() override;
 
-        void event(Event::Channel channel, const Event &event);
+        void event(Event::Channel channel, const Event &event) override;
 
     protected:
         MessageHandlerPtr mAdminHandler;
diff --git a/src/net/manaserv/guildhandler.cpp b/src/net/manaserv/guildhandler.cpp
index 19fa03ca..be2a5ec8 100644
--- a/src/net/manaserv/guildhandler.cpp
+++ b/src/net/manaserv/guildhandler.cpp
@@ -285,7 +285,7 @@ void GuildHandler::joinedGuild(MessageIn &msg)
 
     // Automatically create the guild channel
     // COMMENT: Should this go here??
-    Channel *channel = new Channel(channelId, guildName, announcement);
+    auto *channel = new Channel(channelId, guildName, announcement);
     channelManager->addChannel(channel);
     channel->getTab()->chatLog(strprintf(_("Topic: %s"), announcement.c_str()),
                                BY_CHANNEL);
diff --git a/src/net/manaserv/guildhandler.h b/src/net/manaserv/guildhandler.h
index d1232a6f..b14bb203 100644
--- a/src/net/manaserv/guildhandler.h
+++ b/src/net/manaserv/guildhandler.h
@@ -33,34 +33,34 @@ class GuildHandler : public Net::GuildHandler, public MessageHandler
 public:
     GuildHandler();
 
-    bool isSupported() { return true; }
+    bool isSupported() override { return true; }
 
-    void handleMessage(MessageIn &msg);
+    void handleMessage(MessageIn &msg) override;
 
-    void create(const std::string &name);
+    void create(const std::string &name) override;
 
-    void invite(int guildId, const std::string &name);
+    void invite(int guildId, const std::string &name) override;
 
-    void invite(int guidId, Being *being);
+    void invite(int guidId, Being *being) override;
 
-    void inviteResponse(int guidId, bool response);
+    void inviteResponse(int guidId, bool response) override;
 
-    void leave(int guildId);
+    void leave(int guildId) override;
 
-    void kick(GuildMember *member, std::string reason = "");
+    void kick(GuildMember *member, std::string reason = "") override;
 
-    void chat(int guildId, const std::string &text);
+    void chat(int guildId, const std::string &text) override;
 
-    void memberList(int guildId);
+    void memberList(int guildId) override;
 
-    void changeMemberPostion(GuildMember *member, int level);
+    void changeMemberPostion(GuildMember *member, int level) override;
 
-    void requestAlliance(int guildId, int otherGuildId);
+    void requestAlliance(int guildId, int otherGuildId) override;
 
     void requestAllianceResponse(int guildId, int otherGuildId,
-                                 bool response);
+                                 bool response) override;
 
-    void endAlliance(int guildId, int otherGuildId);
+    void endAlliance(int guildId, int otherGuildId) override;
 
 protected:
     void joinedGuild(MessageIn &msg);
diff --git a/src/net/manaserv/inventoryhandler.cpp b/src/net/manaserv/inventoryhandler.cpp
index b306869e..af482400 100644
--- a/src/net/manaserv/inventoryhandler.cpp
+++ b/src/net/manaserv/inventoryhandler.cpp
@@ -72,20 +72,20 @@ EquipBackend::~EquipBackend()
 
 Item *EquipBackend::getEquipment(int slotIndex) const
 {
-    Slots::const_iterator it = mSlots.find(slotIndex);
-    return it == mSlots.end() ? 0 : it->second.item;
+    auto it = mSlots.find(slotIndex);
+    return it == mSlots.end() ? nullptr : it->second.item;
 }
 
 std::string EquipBackend::getSlotName(int slotIndex) const
 {
-    Slots::const_iterator it = mSlots.find(slotIndex);
+    auto it = mSlots.find(slotIndex);
     return it == mSlots.end() ? std::string() : it->second.name;
 }
 
 void EquipBackend::triggerUnequip(int slotIndex) const
 {
     // First get the itemInstance
-    Slots::const_iterator it = mSlots.find(slotIndex);
+    auto it = mSlots.find(slotIndex);
 
     if (it == mSlots.end() || it->second.itemInstance == 0 || !it->second.item)
         return;
@@ -99,13 +99,13 @@ void EquipBackend::triggerUnequip(int slotIndex) const
 
 void EquipBackend::clear()
 {
-    for (Slots::iterator i = mSlots.begin(), i_end = mSlots.end();
+    for (auto i = mSlots.begin(), i_end = mSlots.end();
         i != i_end; ++i)
     {
         if (i->second.item)
         {
             delete i->second.item;
-            i->second.item = 0;
+            i->second.item = nullptr;
         }
     }
     mSlots.clear();
@@ -121,8 +121,8 @@ void EquipBackend::equip(int itemId, int slotTypeId, int amountUsed,
         return;
     }
 
-    Slots::iterator it = mSlots.begin();
-    Slots::iterator it_end = mSlots.end();
+    auto it = mSlots.begin();
+    auto it_end = mSlots.end();
     bool slotTypeFound = false;
     for (; it != it_end; ++it)
         if (it->second.slotTypeId == (unsigned)slotTypeId)
@@ -161,8 +161,8 @@ void EquipBackend::equip(int itemId, int slotTypeId, int amountUsed,
 
 void EquipBackend::unequip(int itemInstance)
 {
-    Slots::iterator it = mSlots.begin();
-    Slots::iterator it_end = mSlots.end();
+    auto it = mSlots.begin();
+    auto it_end = mSlots.end();
     bool itemInstanceFound = false;
     for (; it != it_end; ++it)
         if (it->second.itemInstance == (unsigned)itemInstance)
@@ -187,7 +187,7 @@ void EquipBackend::unequip(int itemInstance)
         if (it->second.item)
         {
             delete it->second.item;
-            it->second.item = 0;
+            it->second.item = nullptr;
         }
     }
 }
@@ -280,7 +280,7 @@ void EquipBackend::readBoxNode(xmlNodePtr slotNode)
 
 bool EquipBackend::isWeaponSlot(int slotTypeId) const
 {
-    for (Slots::const_iterator it = mSlots.begin(), it_end = mSlots.end();
+    for (auto it = mSlots.begin(), it_end = mSlots.end();
         it != it_end; ++it)
     {
         if (it->second.slotTypeId == (unsigned)slotTypeId)
@@ -291,7 +291,7 @@ bool EquipBackend::isWeaponSlot(int slotTypeId) const
 
 bool EquipBackend::isAmmoSlot(int slotTypeId) const
 {
-    for (Slots::const_iterator it = mSlots.begin(), it_end = mSlots.end();
+    for (auto it = mSlots.begin(), it_end = mSlots.end();
         it != it_end; ++it)
     {
         if (it->second.slotTypeId == (unsigned)slotTypeId)
diff --git a/src/net/manaserv/inventoryhandler.h b/src/net/manaserv/inventoryhandler.h
index 808acb96..3659286b 100644
--- a/src/net/manaserv/inventoryhandler.h
+++ b/src/net/manaserv/inventoryhandler.h
@@ -38,25 +38,25 @@ class EquipBackend : public Equipment::Backend, public EventListener
     public:
         EquipBackend();
 
-        ~EquipBackend();
+        ~EquipBackend() override;
 
-        Item *getEquipment(int slotIndex) const;
-        std::string getSlotName(int slotIndex) const;
-        void clear();
+        Item *getEquipment(int slotIndex) const override;
+        std::string getSlotName(int slotIndex) const override;
+        void clear() override;
 
         void equip(int itemId, int slotTypeId, int amountUsed = 1,
                    int itemInstance = 0);
         void unequip(int slotTypeId);
 
-        void event(Event::Channel channel, const Event &event);
+        void event(Event::Channel channel, const Event &event) override;
 
-        int getSlotNumber() const
+        int getSlotNumber() const override
         { return mSlots.size(); }
 
         unsigned int getVisibleSlotsNumber() const
         { return mVisibleSlots; }
 
-        void triggerUnequip(int slotIndex) const;
+        void triggerUnequip(int slotIndex) const override;
 
         bool isWeaponSlot(int slotTypeId) const;
         bool isAmmoSlot(int slotTypeId) const;
@@ -66,13 +66,13 @@ class EquipBackend : public Equipment::Backend, public EventListener
         const std::string& getBoxBackground(unsigned int slotIndex) const;
 
     private:
-        void readEquipFile();
+        void readEquipFile() override;
 
         void readBoxNode(xmlNodePtr slotNode);
 
         struct Slot {
             Slot():
-                item(0),
+                item(nullptr),
                 slotTypeId(0),
                 subId(0),
                 itemInstance(0),
@@ -113,7 +113,7 @@ class EquipBackend : public Equipment::Backend, public EventListener
         unsigned int mVisibleSlots;
 
         // slot client index, slot info
-        typedef std::map<unsigned int, Slot> Slots;
+        using Slots = std::map<unsigned int, Slot>;
         Slots mSlots;
         std::vector<Position> mBoxesPositions;
         std::vector<std::string> mBoxesBackgroundFile;
@@ -125,27 +125,27 @@ class InventoryHandler : public MessageHandler, Net::InventoryHandler,
     public:
         InventoryHandler();
 
-        void handleMessage(MessageIn &msg);
+        void handleMessage(MessageIn &msg) override;
 
-        void event(Event::Channel channel, const Event &event);
+        void event(Event::Channel channel, const Event &event) override;
 
-        bool canSplit(const Item *item);
+        bool canSplit(const Item *item) override;
 
-        size_t getSize(int type) const;
+        size_t getSize(int type) const override;
 
-        bool isWeaponSlot(unsigned int slotTypeId) const
+        bool isWeaponSlot(unsigned int slotTypeId) const override
         { return mEquipBackend.isWeaponSlot(slotTypeId); }
 
-        bool isAmmoSlot(unsigned int slotTypeId) const
+        bool isAmmoSlot(unsigned int slotTypeId) const override
         { return mEquipBackend.isAmmoSlot(slotTypeId); }
 
-        unsigned int getVisibleSlotsNumber() const
+        unsigned int getVisibleSlotsNumber() const override
         { return mEquipBackend.getVisibleSlotsNumber(); }
 
-        Position getBoxPosition(unsigned int slotIndex) const
+        Position getBoxPosition(unsigned int slotIndex) const override
         { return mEquipBackend.getBoxPosition(slotIndex); }
 
-        const std::string& getBoxBackground(unsigned int slotIndex) const
+        const std::string& getBoxBackground(unsigned int slotIndex) const override
         { return mEquipBackend.getBoxBackground(slotIndex); }
 
     private:
diff --git a/src/net/manaserv/itemhandler.h b/src/net/manaserv/itemhandler.h
index e45db269..4396886f 100644
--- a/src/net/manaserv/itemhandler.h
+++ b/src/net/manaserv/itemhandler.h
@@ -31,7 +31,7 @@ class ItemHandler : public MessageHandler
     public:
         ItemHandler();
 
-        void handleMessage(MessageIn &msg);
+        void handleMessage(MessageIn &msg) override;
 };
 
 } // namespace ManaServ
diff --git a/src/net/manaserv/loginhandler.h b/src/net/manaserv/loginhandler.h
index 33cc83ad..cdfbe222 100644
--- a/src/net/manaserv/loginhandler.h
+++ b/src/net/manaserv/loginhandler.h
@@ -36,43 +36,43 @@ class LoginHandler : public MessageHandler, public Net::LoginHandler
     public:
         LoginHandler();
 
-        void handleMessage(MessageIn &msg);
+        void handleMessage(MessageIn &msg) override;
 
-        void connect();
+        void connect() override;
 
-        bool isConnected();
+        bool isConnected() override;
 
-        void disconnect();
+        void disconnect() override;
 
-        int supportedOptionalActions() const
+        int supportedOptionalActions() const override
         { return Unregister | ChangeEmail | SetEmailOnRegister; }
 
-        bool isRegistrationEnabled();
+        bool isRegistrationEnabled() override;
 
-        void getRegistrationDetails();
+        void getRegistrationDetails() override;
 
-        unsigned int getMinUserNameLength() const;
+        unsigned int getMinUserNameLength() const override;
 
-        unsigned int getMaxUserNameLength() const;
+        unsigned int getMaxUserNameLength() const override;
 
-        void loginAccount(LoginData *loginData);
+        void loginAccount(LoginData *loginData) override;
 
-        void logout();
+        void logout() override;
 
-        void changeEmail(const std::string &email);
+        void changeEmail(const std::string &email) override;
 
         void changePassword(const std::string &username,
                             const std::string &oldPassword,
-                            const std::string &newPassword);
+                            const std::string &newPassword) override;
 
-        void chooseServer(unsigned int server);
+        void chooseServer(unsigned int server) override;
 
-        void registerAccount(LoginData *loginData);
+        void registerAccount(LoginData *loginData) override;
 
         void unregisterAccount(const std::string &username,
-                               const std::string &password);
+                               const std::string &password) override;
 
-        Worlds getWorlds() const;
+        Worlds getWorlds() const override;
 
         void reconnect();
 
diff --git a/src/net/manaserv/messagehandler.h b/src/net/manaserv/messagehandler.h
index 8949d34e..f9ee09ab 100644
--- a/src/net/manaserv/messagehandler.h
+++ b/src/net/manaserv/messagehandler.h
@@ -36,12 +36,12 @@ class MessageIn;
 class MessageHandler : public Net::MessageHandler
 {
     public:
-        ~MessageHandler();
+        ~MessageHandler() override;
 
         virtual void handleMessage(MessageIn &msg) = 0;
 };
 
-typedef const std::unique_ptr<MessageHandler> MessageHandlerPtr;
+using MessageHandlerPtr = const std::unique_ptr<MessageHandler>;
 
 } // namespace ManaServ
 
diff --git a/src/net/manaserv/messageout.cpp b/src/net/manaserv/messageout.cpp
index 1197176f..3dc2c1b2 100644
--- a/src/net/manaserv/messageout.cpp
+++ b/src/net/manaserv/messageout.cpp
@@ -28,7 +28,7 @@
 namespace ManaServ {
 
 MessageOut::MessageOut(uint16_t id):
-    mData(0),
+    mData(nullptr),
     mPos(0),
     mDataSize(0),
     mDebugMode(false)
diff --git a/src/net/manaserv/network.cpp b/src/net/manaserv/network.cpp
index 30dfb243..7f354fa1 100644
--- a/src/net/manaserv/network.cpp
+++ b/src/net/manaserv/network.cpp
@@ -42,8 +42,8 @@ namespace {
 namespace ManaServ
 {
 
-typedef std::map<unsigned short, MessageHandler*> MessageHandlers;
-typedef MessageHandlers::iterator MessageHandlerIterator;
+using MessageHandlers = std::map<unsigned short, MessageHandler *>;
+using MessageHandlerIterator = MessageHandlers::iterator;
 static MessageHandlers mMessageHandlers;
 
 void initialize()
@@ -53,7 +53,7 @@ void initialize()
         logger->error("Failed to initialize ENet.");
     }
 
-    client = enet_host_create(NULL, 3, 0, 0, 0);
+    client = enet_host_create(nullptr, 3, 0, 0, 0);
 
     if (!client)
     {
@@ -119,7 +119,7 @@ namespace
     {
         MessageIn msg((const char *)packet->data, packet->dataLength);
 
-        MessageHandlerIterator iter = mMessageHandlers.find(msg.getId());
+        auto iter = mMessageHandlers.find(msg.getId());
 
         if (iter != mMessageHandlers.end())
         {
@@ -150,7 +150,7 @@ void flush()
             case ENET_EVENT_TYPE_CONNECT:
                 logger->log("Connected to port %d.", event.peer->address.port);
                 // Store any relevant server information here.
-                event.peer->data = 0;
+                event.peer->data = nullptr;
                 break;
 
             case ENET_EVENT_TYPE_RECEIVE:
@@ -160,7 +160,7 @@ void flush()
             case ENET_EVENT_TYPE_DISCONNECT:
                 logger->log("Disconnected.");
                 // Reset the server information.
-                event.peer->data = 0;
+                event.peer->data = nullptr;
                 break;
 
             case ENET_EVENT_TYPE_NONE:
diff --git a/src/net/manaserv/npchandler.cpp b/src/net/manaserv/npchandler.cpp
index 502df13d..bd131d55 100644
--- a/src/net/manaserv/npchandler.cpp
+++ b/src/net/manaserv/npchandler.cpp
@@ -62,7 +62,7 @@ void NpcHandler::handleMessage(MessageIn &msg)
     }
 
     int npcId = being->getId(), count = 0;
-    Event *event = 0;
+    Event *event = nullptr;
 
     switch (msg.getId())
     {
diff --git a/src/net/manaserv/npchandler.h b/src/net/manaserv/npchandler.h
index 0f42385d..8d397253 100644
--- a/src/net/manaserv/npchandler.h
+++ b/src/net/manaserv/npchandler.h
@@ -37,34 +37,34 @@ class NpcHandler : public MessageHandler, public Net::NpcHandler
     public:
         NpcHandler();
 
-        void handleMessage(MessageIn &msg);
+        void handleMessage(MessageIn &msg) override;
 
-        void startShopping(int beingId);
+        void startShopping(int beingId) override;
 
-        void buy(int beingId);
+        void buy(int beingId) override;
 
-        void sell(int beingId);
+        void sell(int beingId) override;
 
-        void buyItem(int beingId, int itemId, int amount);
+        void buyItem(int beingId, int itemId, int amount) override;
 
-        void sellItem(int beingId, int itemId, int amount);
+        void sellItem(int beingId, int itemId, int amount) override;
 
-        void endShopping(int beingId);
+        void endShopping(int beingId) override;
 
-        void talk(int npcId);
+        void talk(int npcId) override;
 
-        void nextDialog(int npcId);
+        void nextDialog(int npcId) override;
 
-        void closeDialog(int npcId);
+        void closeDialog(int npcId) override;
 
-        void menuSelect(int npcId, int choice);
+        void menuSelect(int npcId, int choice) override;
 
-        void integerInput(int npcId, int value);
+        void integerInput(int npcId, int value) override;
 
-        void stringInput(int npcId, const std::string &value);
+        void stringInput(int npcId, const std::string &value) override;
 
         void sendLetter(int npcId, const std::string &recipient,
-                        const std::string &text);
+                        const std::string &text) override;
 
 };
 
diff --git a/src/net/manaserv/partyhandler.cpp b/src/net/manaserv/partyhandler.cpp
index a0d4b6d9..e0ee91a7 100644
--- a/src/net/manaserv/partyhandler.cpp
+++ b/src/net/manaserv/partyhandler.cpp
@@ -113,7 +113,7 @@ void PartyHandler::handleMessage(MessageIn &msg)
             if (msg.readInt8() == ERRMSG_OK)
             {
                 mParty->clearMembers();
-                local_player->setParty(NULL);
+                local_player->setParty(nullptr);
             }
         } break;
 
diff --git a/src/net/manaserv/partyhandler.h b/src/net/manaserv/partyhandler.h
index 6c526f73..ed8a1f25 100644
--- a/src/net/manaserv/partyhandler.h
+++ b/src/net/manaserv/partyhandler.h
@@ -37,35 +37,35 @@ class PartyHandler : public MessageHandler, public Net::PartyHandler
 public:
     PartyHandler();
 
-    void handleMessage(MessageIn &msg);
+    void handleMessage(MessageIn &msg) override;
 
-    void create(const std::string &name = "");
+    void create(const std::string &name = "") override;
 
-    void join(int partyId);
+    void join(int partyId) override;
 
-    void invite(Being *being);
+    void invite(Being *being) override;
 
-    void invite(const std::string &name);
+    void invite(const std::string &name) override;
 
-    void inviteResponse(const std::string &inviter, bool accept);
+    void inviteResponse(const std::string &inviter, bool accept) override;
 
-    void leave();
+    void leave() override;
 
-    void kick(Being *being);
+    void kick(Being *being) override;
 
-    void kick(const std::string &name);
+    void kick(const std::string &name) override;
 
-    void chat(const std::string &text);
+    void chat(const std::string &text) override;
 
-    void requestPartyMembers();
+    void requestPartyMembers() override;
 
-    PartyShare getShareExperience() { return PARTY_SHARE_NO; }
+    PartyShare getShareExperience() override { return PARTY_SHARE_NO; }
 
-    void setShareExperience(PartyShare share) {}
+    void setShareExperience(PartyShare share) override {}
 
-    PartyShare getShareItems() { return PARTY_SHARE_NO; }
+    PartyShare getShareItems() override { return PARTY_SHARE_NO; }
 
-    void setShareItems(PartyShare share) {}
+    void setShareItems(PartyShare share) override {}
 private:
     Party *mParty;
 };
diff --git a/src/net/manaserv/playerhandler.cpp b/src/net/manaserv/playerhandler.cpp
index c1f78f67..15b0eb5c 100644
--- a/src/net/manaserv/playerhandler.cpp
+++ b/src/net/manaserv/playerhandler.cpp
@@ -105,7 +105,7 @@ void PlayerHandler::handleMessage(MessageIn &msg)
 
             gameServerConnection->disconnect();
             Client::setState(STATE_CHANGE_MAP);
-            local_player->setMap(0);
+            local_player->setMap(nullptr);
         } break;
 
         case GPMSG_PLAYER_ATTRIBUTE_CHANGE:
diff --git a/src/net/manaserv/playerhandler.h b/src/net/manaserv/playerhandler.h
index abb29e9b..e2a52d4d 100644
--- a/src/net/manaserv/playerhandler.h
+++ b/src/net/manaserv/playerhandler.h
@@ -32,7 +32,7 @@ namespace ManaServ {
 
 struct RespawnRequestListener : public gcn::ActionListener
 {
-    void action(const gcn::ActionEvent &event);
+    void action(const gcn::ActionEvent &event) override;
 };
 static RespawnRequestListener respawnListener;
 
@@ -41,35 +41,35 @@ class PlayerHandler : public MessageHandler, public Net::PlayerHandler
     public:
         PlayerHandler();
 
-        void handleMessage(MessageIn &msg);
+        void handleMessage(MessageIn &msg) override;
 
-        void attack(int id);
-        void emote(int emoteId);
+        void attack(int id) override;
+        void emote(int emoteId) override;
 
-        void increaseAttribute(int attr);
-        void decreaseAttribute(int attr);
-        void increaseSkill(int skillId);
+        void increaseAttribute(int attr) override;
+        void decreaseAttribute(int attr) override;
+        void increaseSkill(int skillId) override;
 
-        void pickUp(FloorItem *floorItem);
-        void setDirection(char direction);
-        void setDestination(int x, int y, int direction = -1);
-        void changeAction(Being::Action action);
+        void pickUp(FloorItem *floorItem) override;
+        void setDirection(char direction) override;
+        void setDestination(int x, int y, int direction = -1) override;
+        void changeAction(Being::Action action) override;
 
-        void respawn();
+        void respawn() override;
 
-        void ignorePlayer(const std::string &player, bool ignore);
-        void ignoreAll(bool ignore);
+        void ignorePlayer(const std::string &player, bool ignore) override;
+        void ignoreAll(bool ignore) override;
 
-        bool canUseMagic();
-        bool canCorrectAttributes();
+        bool canUseMagic() override;
+        bool canCorrectAttributes() override;
 
-        int getJobLocation();
+        int getJobLocation() override;
 
-        Vector getDefaultMoveSpeed() const;
+        Vector getDefaultMoveSpeed() const override;
 
-        Vector getPixelsPerTickMoveSpeed(const Vector &speed, Map *map = 0);
+        Vector getPixelsPerTickMoveSpeed(const Vector &speed, Map *map = nullptr) override;
 
-        bool usePixelPrecision()
+        bool usePixelPrecision() override
         { return true; }
 
     private:
diff --git a/src/net/manaserv/specialhandler.h b/src/net/manaserv/specialhandler.h
index ee26b3b7..55b5225b 100644
--- a/src/net/manaserv/specialhandler.h
+++ b/src/net/manaserv/specialhandler.h
@@ -33,15 +33,15 @@ class SpecialHandler : public MessageHandler, public Net::SpecialHandler
     public:
         SpecialHandler();
 
-        void handleMessage(MessageIn &msg);
+        void handleMessage(MessageIn &msg) override;
 
-        void use(int id);
+        void use(int id) override;
 
-        void use(int id, int level, int beingId);
+        void use(int id, int level, int beingId) override;
 
-        void use(int id, int level, int x, int y);
+        void use(int id, int level, int x, int y) override;
 
-        void use(int id, const std::string &map);
+        void use(int id, const std::string &map) override;
 };
 
 } // namespace ManaServ
diff --git a/src/net/manaserv/tradehandler.cpp b/src/net/manaserv/tradehandler.cpp
index ff7849ff..9537909c 100644
--- a/src/net/manaserv/tradehandler.cpp
+++ b/src/net/manaserv/tradehandler.cpp
@@ -55,7 +55,7 @@ extern Connection *gameServerConnection;
 namespace {
     struct RequestTradeListener : public gcn::ActionListener
     {
-        void action(const gcn::ActionEvent &event)
+        void action(const gcn::ActionEvent &event) override
         {
             if (event.getId() == "yes")
             {
@@ -112,7 +112,7 @@ void TradeHandler::handleMessage(MessageIn &msg)
             mTrading = true;
             tradePartnerName = being->getName();
             tradePartnerID = being->getId();
-            ConfirmDialog *dlg = new ConfirmDialog(_("Request for Trade"),
+            auto *dlg = new ConfirmDialog(_("Request for Trade"),
                     strprintf(_("%s wants to trade with you, do you accept?"),
                             tradePartnerName.c_str()));
             dlg->addActionListener(&listener);
diff --git a/src/net/manaserv/tradehandler.h b/src/net/manaserv/tradehandler.h
index 5d20c14e..094b3c17 100644
--- a/src/net/manaserv/tradehandler.h
+++ b/src/net/manaserv/tradehandler.h
@@ -33,7 +33,7 @@ class TradeHandler : public MessageHandler, public Net::TradeHandler
     public:
         TradeHandler();
 
-        void handleMessage(MessageIn &msg);
+        void handleMessage(MessageIn &msg) override;
 
         /**
          * Returns whether trade requests are accepted.
@@ -50,21 +50,21 @@ class TradeHandler : public MessageHandler, public Net::TradeHandler
          */
         void setAcceptTradeRequests(bool acceptTradeRequests);
 
-        void request(Being *being);
+        void request(Being *being) override;
 
-        void respond(bool accept);
+        void respond(bool accept) override;
 
-        void addItem(Item *item, int amount);
+        void addItem(Item *item, int amount) override;
 
-        void removeItem(int slotNum, int amount);
+        void removeItem(int slotNum, int amount) override;
 
-        void setMoney(int amount);
+        void setMoney(int amount) override;
 
-        void confirm();
+        void confirm() override;
 
-        void finish();
+        void finish() override;
 
-        void cancel();
+        void cancel() override;
 
     private:
         bool mAcceptTradeRequests;
diff --git a/src/net/net.cpp b/src/net/net.cpp
index 8946945b..c060d2e8 100644
--- a/src/net/net.cpp
+++ b/src/net/net.cpp
@@ -44,19 +44,19 @@
 
 #include "utils/gettext.h"
 
-Net::AdminHandler *adminHandler = NULL;
-Net::CharHandler *charHandler = NULL;
-Net::ChatHandler *chatHandler = NULL;
-Net::GeneralHandler *generalHandler = NULL;
-Net::InventoryHandler *inventoryHandler = NULL;
-Net::LoginHandler *loginHandler = NULL;
-Net::GameHandler *gameHandler = NULL;
-Net::GuildHandler *guildHandler = NULL;
-Net::NpcHandler *npcHandler = NULL;
-Net::PartyHandler *partyHandler = NULL;
-Net::PlayerHandler *playerHandler = NULL;
-Net::SpecialHandler *specialHandler = NULL;
-Net::TradeHandler *tradeHandler = NULL;
+Net::AdminHandler *adminHandler = nullptr;
+Net::CharHandler *charHandler = nullptr;
+Net::ChatHandler *chatHandler = nullptr;
+Net::GeneralHandler *generalHandler = nullptr;
+Net::InventoryHandler *inventoryHandler = nullptr;
+Net::LoginHandler *loginHandler = nullptr;
+Net::GameHandler *gameHandler = nullptr;
+Net::GuildHandler *guildHandler = nullptr;
+Net::NpcHandler *npcHandler = nullptr;
+Net::PartyHandler *partyHandler = nullptr;
+Net::PlayerHandler *playerHandler = nullptr;
+Net::SpecialHandler *specialHandler = nullptr;
+Net::TradeHandler *tradeHandler = nullptr;
 
 Net::AdminHandler *Net::getAdminHandler()
 {
@@ -141,13 +141,13 @@ void connectToServer(ServerInfo &server)
             logger->error(_("Unknown Server Type! Exiting."));
     }
 
-    if (networkType == server.type && getGeneralHandler() != NULL)
+    if (networkType == server.type && getGeneralHandler() != nullptr)
     {
         getGeneralHandler()->reload();
     }
     else
     {
-        if (networkType != ServerInfo::UNKNOWN && getGeneralHandler() != NULL)
+        if (networkType != ServerInfo::UNKNOWN && getGeneralHandler() != nullptr)
         {
             getGeneralHandler()->unload();
         }
diff --git a/src/net/playerhandler.h b/src/net/playerhandler.h
index 8d697e46..0d638ac1 100644
--- a/src/net/playerhandler.h
+++ b/src/net/playerhandler.h
@@ -74,7 +74,7 @@ class PlayerHandler
          * Convert the original server-dependant speed for internal use.
          */
         virtual Vector getPixelsPerTickMoveSpeed(const Vector &speed,
-                                                 Map *map = 0) = 0;
+                                                 Map *map = nullptr) = 0;
 
         /**
          * Tells whether the client has to use pixel paths.
diff --git a/src/net/serverinfo.h b/src/net/serverinfo.h
index 98881931..f9119d19 100644
--- a/src/net/serverinfo.h
+++ b/src/net/serverinfo.h
@@ -36,7 +36,7 @@ public:
         TMWATHENA
     };
 
-    typedef std::pair<int, std::string> VersionString;
+    using VersionString = std::pair<int, std::string>;
 
     Type type = UNKNOWN;
     std::string name;
@@ -96,6 +96,6 @@ public:
     }
 };
 
-typedef std::deque<ServerInfo> ServerInfos;
+using ServerInfos = std::deque<ServerInfo>;
 
 #endif // SERVERINFO_H
diff --git a/src/net/tmwa/adminhandler.h b/src/net/tmwa/adminhandler.h
index 71c37a09..f91a093d 100644
--- a/src/net/tmwa/adminhandler.h
+++ b/src/net/tmwa/adminhandler.h
@@ -34,27 +34,27 @@ class AdminHandler : public MessageHandler, public Net::AdminHandler
     public:
         AdminHandler();
 
-        void handleMessage(MessageIn &msg);
+        void handleMessage(MessageIn &msg) override;
 
-        void announce(const std::string &text);
+        void announce(const std::string &text) override;
 
-        void localAnnounce(const std::string &text);
+        void localAnnounce(const std::string &text) override;
 
-        void hide(bool hide);
+        void hide(bool hide) override;
 
-        void kick(int playerId);
+        void kick(int playerId) override;
 
-        void kick(const std::string &name);
+        void kick(const std::string &name) override;
 
-        void ban(int playerId);
+        void ban(int playerId) override;
 
-        void ban(const std::string &name);
+        void ban(const std::string &name) override;
 
-        void unban(int playerId);
+        void unban(int playerId) override;
 
-        void unban(const std::string &name);
+        void unban(const std::string &name) override;
 
-        void mute(int playerId, int type, int limit);
+        void mute(int playerId, int type, int limit) override;
 };
 
 } // namespace TmwAthena
diff --git a/src/net/tmwa/beinghandler.cpp b/src/net/tmwa/beinghandler.cpp
index 12c97feb..3027efc8 100644
--- a/src/net/tmwa/beinghandler.cpp
+++ b/src/net/tmwa/beinghandler.cpp
@@ -90,7 +90,7 @@ static Being *createBeing(int id, short job)
     else if (job > 1000 && job <= 2000)
         type = ActorSprite::MONSTER;
     else if (job == 45)
-        return NULL; // Skip portals
+        return nullptr; // Skip portals
 
     Being *being = actorSpriteManager->createBeing(id, type, job);
 
diff --git a/src/net/tmwa/beinghandler.h b/src/net/tmwa/beinghandler.h
index 81bbad74..1ec1583c 100644
--- a/src/net/tmwa/beinghandler.h
+++ b/src/net/tmwa/beinghandler.h
@@ -31,7 +31,7 @@ class BeingHandler : public MessageHandler
     public:
         BeingHandler(bool enableSync);
 
-        virtual void handleMessage(MessageIn &msg);
+        void handleMessage(MessageIn &msg) override;
 
     private:
         // Should we honor server "Stop Walking" packets
diff --git a/src/net/tmwa/buysellhandler.cpp b/src/net/tmwa/buysellhandler.cpp
index 908e1d6d..00a36f15 100644
--- a/src/net/tmwa/buysellhandler.cpp
+++ b/src/net/tmwa/buysellhandler.cpp
@@ -88,7 +88,7 @@ void BuySellHandler::handleMessage(MessageIn &msg)
             n_items = (msg.getLength() - 4) / 10;
             if (n_items > 0)
             {
-                SellDialog *dialog = new SellDialog(mNpcId);
+                auto *dialog = new SellDialog(mNpcId);
                 dialog->setMoney(PlayerInfo::getAttribute(MONEY));
 
                 for (int k = 0; k < n_items; k++)
diff --git a/src/net/tmwa/buysellhandler.h b/src/net/tmwa/buysellhandler.h
index b5229e0f..6e22b4af 100644
--- a/src/net/tmwa/buysellhandler.h
+++ b/src/net/tmwa/buysellhandler.h
@@ -33,7 +33,7 @@ class BuySellHandler : public MessageHandler
     public:
         BuySellHandler();
 
-        virtual void handleMessage(MessageIn &msg);
+        void handleMessage(MessageIn &msg) override;
 
     private:
         int mNpcId;
diff --git a/src/net/tmwa/charserverhandler.cpp b/src/net/tmwa/charserverhandler.cpp
index a8e87622..45c07bec 100644
--- a/src/net/tmwa/charserverhandler.cpp
+++ b/src/net/tmwa/charserverhandler.cpp
@@ -87,7 +87,7 @@ void CharServerHandler::handleMessage(MessageIn &msg)
 
                 for (int i = 0; i < count; ++i)
                 {
-                    Net::Character *character = new Net::Character;
+                    auto *character = new Net::Character;
                     readPlayerData(msg, character);
                     mCharacters.push_back(character);
                     logger->log("CharServer: Player: %s (%d)",
@@ -117,7 +117,7 @@ void CharServerHandler::handleMessage(MessageIn &msg)
 
         case SMSG_CHAR_CREATE_SUCCEEDED:
             {
-                Net::Character *character = new Net::Character;
+                auto *character = new Net::Character;
                 readPlayerData(msg, character);
                 mCharacters.push_back(character);
 
@@ -127,7 +127,7 @@ void CharServerHandler::handleMessage(MessageIn &msg)
                 if (mCharCreateDialog)
                 {
                     mCharCreateDialog->scheduleDelete();
-                    mCharCreateDialog = 0;
+                    mCharCreateDialog = nullptr;
                 }
             }
             break;
@@ -142,7 +142,7 @@ void CharServerHandler::handleMessage(MessageIn &msg)
         case SMSG_CHAR_DELETE_SUCCEEDED:
             delete mSelectedCharacter;
             mCharacters.remove(mSelectedCharacter);
-            mSelectedCharacter = 0;
+            mSelectedCharacter = nullptr;
             updateCharSelectDialog();
             unlockCharSelectDialog();
             new OkDialog(_("Info"), _("Character deleted."));
@@ -156,7 +156,7 @@ void CharServerHandler::handleMessage(MessageIn &msg)
         case SMSG_CHAR_MAP_INFO:
         {
             msg.skip(4); // CharID, must be the same as local_player->charID
-            GameHandler *gh = static_cast<GameHandler*>(Net::getGameHandler());
+            auto *gh = static_cast<GameHandler*>(Net::getGameHandler());
             gh->setMap(msg.readString(16));
 
             const auto ip = msg.readInt32();
@@ -172,7 +172,7 @@ void CharServerHandler::handleMessage(MessageIn &msg)
             PlayerInfo::setBackend(mSelectedCharacter->data);
 
             // Prevent the selected local player from being deleted
-            mSelectedCharacter->dummy = 0;
+            mSelectedCharacter->dummy = nullptr;
 
             delete_all(mCharacters);
             mCharacters.clear();
@@ -185,7 +185,7 @@ void CharServerHandler::handleMessage(MessageIn &msg)
 
         case SMSG_CHANGE_MAP_SERVER:
         {
-            GameHandler *gh = static_cast<GameHandler*>(Net::getGameHandler());
+            auto *gh = static_cast<GameHandler*>(Net::getGameHandler());
             gh->setMap(msg.readString(16));
             int x = msg.readInt16();
             int y = msg.readInt16();
@@ -199,7 +199,7 @@ void CharServerHandler::handleMessage(MessageIn &msg)
             const int tileHeight = map->getTileHeight();
             local_player->setPosition(Vector(x * tileWidth + tileWidth / 2,
                                             y * tileHeight + tileHeight / 2));
-            local_player->setMap(0);
+            local_player->setMap(nullptr);
         }
         break;
     }
@@ -210,7 +210,7 @@ void CharServerHandler::readPlayerData(MessageIn &msg, Net::Character *character
     const Token &token =
             static_cast<LoginHandler*>(Net::getLoginHandler())->getToken();
 
-    LocalPlayer *tempPlayer = new LocalPlayer(msg.readInt32(), 0);
+    auto *tempPlayer = new LocalPlayer(msg.readInt32(), 0);
     tempPlayer->setGender(token.sex);
 
     character->data.mAttributes[EXP] = msg.readInt32();
@@ -309,7 +309,7 @@ void CharServerHandler::requestCharacters()
 void CharServerHandler::chooseCharacter(Net::Character *character)
 {
     mSelectedCharacter = character;
-    mCharSelectDialog = 0;
+    mCharSelectDialog = nullptr;
 
     MessageOut outMsg(CMSG_CHAR_SELECT);
     outMsg.writeInt8(mSelectedCharacter->slot);
diff --git a/src/net/tmwa/charserverhandler.h b/src/net/tmwa/charserverhandler.h
index 7e4fc2d9..cf673a4d 100644
--- a/src/net/tmwa/charserverhandler.h
+++ b/src/net/tmwa/charserverhandler.h
@@ -40,37 +40,37 @@ class CharServerHandler : public MessageHandler, public Net::CharHandler
     public:
         CharServerHandler();
 
-        virtual void handleMessage(MessageIn &msg);
+        void handleMessage(MessageIn &msg) override;
 
-        void setCharSelectDialog(CharSelectDialog *window);
+        void setCharSelectDialog(CharSelectDialog *window) override;
 
         /**
          * Sets the character create dialog. The handler will clean up this
          * dialog when a new character is succesfully created, and will unlock
          * the dialog when a new character failed to be created.
          */
-        void setCharCreateDialog(CharCreateDialog *window);
+        void setCharCreateDialog(CharCreateDialog *window) override;
 
-        void requestCharacters();
+        void requestCharacters() override;
 
-        void chooseCharacter(Net::Character *character);
+        void chooseCharacter(Net::Character *character) override;
 
         void newCharacter(const std::string &name, int slot, bool gender,
                           int hairstyle, int hairColor,
-                          const std::vector<int> &stats);
+                          const std::vector<int> &stats) override;
 
-        void deleteCharacter(Net::Character *character);
+        void deleteCharacter(Net::Character *character) override;
 
-        void switchCharacter();
+        void switchCharacter() override;
 
-        unsigned int baseSprite() const;
+        unsigned int baseSprite() const override;
 
-        unsigned int hairSprite() const;
+        unsigned int hairSprite() const override;
 
-        unsigned int maxSprite() const;
+        unsigned int maxSprite() const override;
 
-        int getCharCreateMaxHairColorId() const;
-        int getCharCreateMaxHairStyleId() const;
+        int getCharCreateMaxHairColorId() const override;
+        int getCharCreateMaxHairStyleId() const override;
 
         void connect();
 
diff --git a/src/net/tmwa/chathandler.h b/src/net/tmwa/chathandler.h
index fa3a8ec3..682a3743 100644
--- a/src/net/tmwa/chathandler.h
+++ b/src/net/tmwa/chathandler.h
@@ -36,36 +36,36 @@ class ChatHandler : public MessageHandler, public Net::ChatHandler
     public:
         ChatHandler();
 
-        void handleMessage(MessageIn &msg);
+        void handleMessage(MessageIn &msg) override;
 
-        void talk(const std::string &text);
+        void talk(const std::string &text) override;
 
-        void me(const std::string &text);
+        void me(const std::string &text) override;
 
         void privateMessage(const std::string &recipient,
-                            const std::string &text);
+                            const std::string &text) override;
 
-        void channelList();
+        void channelList() override;
 
         void enterChannel(const std::string &channel,
-                          const std::string &password);
+                          const std::string &password) override;
 
-        void quitChannel(int channelId);
+        void quitChannel(int channelId) override;
 
-        void sendToChannel(int channelId, const std::string &text);
+        void sendToChannel(int channelId, const std::string &text) override;
 
-        void userList(const std::string &channel);
+        void userList(const std::string &channel) override;
 
-        void setChannelTopic(int channelId, const std::string &text);
+        void setChannelTopic(int channelId, const std::string &text) override;
 
-        void setUserMode(int channelId, const std::string &name, int mode);
+        void setUserMode(int channelId, const std::string &name, int mode) override;
 
-        void kickUser(int channelId, const std::string &name);
+        void kickUser(int channelId, const std::string &name) override;
 
-        void who();
+        void who() override;
 
     private:
-        typedef std::queue<std::string> WhisperQueue;
+        using WhisperQueue = std::queue<std::string>;
         WhisperQueue mSentWhispers;
 };
 
diff --git a/src/net/tmwa/gamehandler.cpp b/src/net/tmwa/gamehandler.cpp
index 68ed62b0..44ce6bc0 100644
--- a/src/net/tmwa/gamehandler.cpp
+++ b/src/net/tmwa/gamehandler.cpp
@@ -93,7 +93,7 @@ void GameHandler::handleMessage(MessageIn &msg)
             if (msg.readInt8())
             {
                 new OkDialog(_("Game"), _("Request to quit denied!"), false,
-                                                                          NULL);
+                                                                          nullptr);
             }
             break;
     }
diff --git a/src/net/tmwa/gamehandler.h b/src/net/tmwa/gamehandler.h
index a6bcde0a..8859c9c6 100644
--- a/src/net/tmwa/gamehandler.h
+++ b/src/net/tmwa/gamehandler.h
@@ -39,32 +39,32 @@ class GameHandler : public MessageHandler, public Net::GameHandler,
     public:
         GameHandler();
 
-        void handleMessage(MessageIn &msg);
+        void handleMessage(MessageIn &msg) override;
 
-        void event(Event::Channel channel, const Event &event);
+        void event(Event::Channel channel, const Event &event) override;
 
-        void connect();
+        void connect() override;
 
-        bool isConnected();
+        bool isConnected() override;
 
-        void disconnect();
+        void disconnect() override;
 
-        void who();
+        void who() override;
 
-        void quit();
+        void quit() override;
 
-        bool removeDeadBeings() const { return true; }
+        bool removeDeadBeings() const override { return true; }
 
         void clear();
 
         void setMap(const std::string map);
 
         /** The tmwAthena protocol is making use of the MP status bar. */
-        bool canUseMagicBar() const { return true; }
+        bool canUseMagicBar() const override { return true; }
 
-        int getPickupRange() const;
+        int getPickupRange() const override;
 
-        int getNpcTalkRange() const { return DEFAULT_TILE_LENGTH * 30; }
+        int getNpcTalkRange() const override { return DEFAULT_TILE_LENGTH * 30; }
 
     private:
         std::string mMap; ///< Keeps the map filename.
diff --git a/src/net/tmwa/generalhandler.cpp b/src/net/tmwa/generalhandler.cpp
index 5e445eaf..4053e17c 100644
--- a/src/net/tmwa/generalhandler.cpp
+++ b/src/net/tmwa/generalhandler.cpp
@@ -184,8 +184,8 @@ void GeneralHandler::reload()
         mNetwork->disconnect();
 
     static_cast<LoginHandler*>(mLoginHandler.get())->clearWorlds();
-    static_cast<CharServerHandler*>(mCharHandler.get())->setCharCreateDialog(0);
-    static_cast<CharServerHandler*>(mCharHandler.get())->setCharSelectDialog(0);
+    static_cast<CharServerHandler*>(mCharHandler.get())->setCharCreateDialog(nullptr);
+    static_cast<CharServerHandler*>(mCharHandler.get())->setCharSelectDialog(nullptr);
 }
 
 void GeneralHandler::unload()
@@ -255,10 +255,10 @@ void GeneralHandler::event(Event::Channel channel,
             socialWindow->removeTab(taParty);
 
             delete guildTab;
-            guildTab = 0;
+            guildTab = nullptr;
 
             delete partyTab;
-            partyTab = 0;
+            partyTab = nullptr;
         }
     }
 }
diff --git a/src/net/tmwa/generalhandler.h b/src/net/tmwa/generalhandler.h
index a34852fd..22c6b650 100644
--- a/src/net/tmwa/generalhandler.h
+++ b/src/net/tmwa/generalhandler.h
@@ -37,21 +37,21 @@ class GeneralHandler : public MessageHandler, public Net::GeneralHandler,
     public:
         GeneralHandler();
 
-        ~GeneralHandler();
+        ~GeneralHandler() override;
 
-        void handleMessage(MessageIn &msg);
+        void handleMessage(MessageIn &msg) override;
 
-        void load();
+        void load() override;
 
-        void reload();
+        void reload() override;
 
-        void unload();
+        void unload() override;
 
-        void flushNetwork();
+        void flushNetwork() override;
 
-        void clearHandlers();
+        void clearHandlers() override;
 
-        void event(Event::Channel channel, const Event &event);
+        void event(Event::Channel channel, const Event &event) override;
 
     protected:
         MessageHandlerPtr mAdminHandler;
diff --git a/src/net/tmwa/gui/guildtab.h b/src/net/tmwa/gui/guildtab.h
index 0e208e93..e7d7b7cc 100644
--- a/src/net/tmwa/gui/guildtab.h
+++ b/src/net/tmwa/gui/guildtab.h
@@ -33,18 +33,18 @@ class GuildTab : public ChatTab
 {
     public:
         GuildTab();
-        ~GuildTab();
+        ~GuildTab() override;
 
-        void showHelp();
+        void showHelp() override;
 
-        bool handleCommand(const std::string &type, const std::string &args);
+        bool handleCommand(const std::string &type, const std::string &args) override;
 
-        void saveToLogFile(std::string &msg);
+        void saveToLogFile(std::string &msg) override;
 
     protected:
-        void handleInput(const std::string &msg);
+        void handleInput(const std::string &msg) override;
 
-        void getAutoCompleteList(std::vector<std::string> &names) const;
+        void getAutoCompleteList(std::vector<std::string> &names) const override;
 };
 
 extern GuildTab *guildTab;
diff --git a/src/net/tmwa/gui/partytab.h b/src/net/tmwa/gui/partytab.h
index 1049b770..61ccf37a 100644
--- a/src/net/tmwa/gui/partytab.h
+++ b/src/net/tmwa/gui/partytab.h
@@ -33,18 +33,18 @@ class PartyTab : public ChatTab
 {
     public:
         PartyTab();
-        ~PartyTab();
+        ~PartyTab() override;
 
-        void showHelp();
+        void showHelp() override;
 
-        bool handleCommand(const std::string &type, const std::string &args);
+        bool handleCommand(const std::string &type, const std::string &args) override;
 
-        void saveToLogFile(std::string &msg);
+        void saveToLogFile(std::string &msg) override;
 
     protected:
-        void handleInput(const std::string &msg);
+        void handleInput(const std::string &msg) override;
 
-        virtual void getAutoCompleteList(std::vector<std::string>&) const;
+        void getAutoCompleteList(std::vector<std::string>&) const override;
 };
 
 extern PartyTab *partyTab;
diff --git a/src/net/tmwa/guildhandler.cpp b/src/net/tmwa/guildhandler.cpp
index a3194991..180d1dfb 100644
--- a/src/net/tmwa/guildhandler.cpp
+++ b/src/net/tmwa/guildhandler.cpp
@@ -39,7 +39,7 @@ extern Net::GuildHandler *guildHandler;
 
 namespace TmwAthena {
 
-GuildTab *guildTab = 0;
+GuildTab *guildTab = nullptr;
 Guild *taGuild;
 
 GuildHandler::GuildHandler()
@@ -83,7 +83,7 @@ GuildHandler::GuildHandler()
 GuildHandler::~GuildHandler()
 {
     delete guildTab;
-    guildTab = 0;
+    guildTab = nullptr;
 }
 
 void GuildHandler::handleMessage(MessageIn &msg)
diff --git a/src/net/tmwa/guildhandler.h b/src/net/tmwa/guildhandler.h
index 4a74a26b..5f8c987c 100644
--- a/src/net/tmwa/guildhandler.h
+++ b/src/net/tmwa/guildhandler.h
@@ -32,34 +32,34 @@ class GuildHandler : public Net::GuildHandler, public MessageHandler
     public:
         GuildHandler();
 
-        ~GuildHandler();
+        ~GuildHandler() override;
 
-        void handleMessage(MessageIn &msg);
+        void handleMessage(MessageIn &msg) override;
 
-        void create(const std::string &name);
+        void create(const std::string &name) override;
 
-        void invite(int guildId, const std::string &name);
+        void invite(int guildId, const std::string &name) override;
 
-        void invite(int guildId, Being *being);
+        void invite(int guildId, Being *being) override;
 
-        void inviteResponse(int guildId, bool response);
+        void inviteResponse(int guildId, bool response) override;
 
-        void leave(int guildId);
+        void leave(int guildId) override;
 
-        void kick(GuildMember *member, std::string reason = "");
+        void kick(GuildMember *member, std::string reason = "") override;
 
-        void chat(int guildId, const std::string &text);
+        void chat(int guildId, const std::string &text) override;
 
-        void memberList(int guildId);
+        void memberList(int guildId) override;
 
-        void changeMemberPostion(GuildMember *member, int level);
+        void changeMemberPostion(GuildMember *member, int level) override;
 
-        void requestAlliance(int guildId, int otherGuildId);
+        void requestAlliance(int guildId, int otherGuildId) override;
 
         void requestAllianceResponse(int guildId, int otherGuildId,
-                                     bool response);
+                                     bool response) override;
 
-        void endAlliance(int guildId, int otherGuildId);
+        void endAlliance(int guildId, int otherGuildId) override;
 
     private:
         // TmwAthena (and eAthena) only supports one guild per player
diff --git a/src/net/tmwa/inventoryhandler.cpp b/src/net/tmwa/inventoryhandler.cpp
index 256e7159..6f32fb3d 100644
--- a/src/net/tmwa/inventoryhandler.cpp
+++ b/src/net/tmwa/inventoryhandler.cpp
@@ -107,8 +107,8 @@ InventoryHandler::InventoryHandler()
     handledMessages = _messages;
     inventoryHandler = this;
 
-    mStorage = 0;
-    mStorageWindow = 0;
+    mStorage = nullptr;
+    mStorageWindow = nullptr;
 
     listen(Event::ItemChannel);
 }
@@ -118,7 +118,7 @@ InventoryHandler::~InventoryHandler()
     if (mStorageWindow)
     {
         mStorageWindow->close();
-        mStorageWindow = 0;
+        mStorageWindow = nullptr;
     }
 
     delete mStorage;
@@ -312,8 +312,8 @@ void InventoryHandler::handleMessage(MessageIn &msg)
                 if (!mStorage)
                     mStorage = new Inventory(Inventory::STORAGE, size);
 
-                InventoryItems::iterator it = mInventoryItems.begin();
-                InventoryItems::iterator it_end = mInventoryItems.end();
+                auto it = mInventoryItems.begin();
+                auto it_end = mInventoryItems.end();
                 for (; it != it_end; it++)
                     mStorage->setItem((*it).slot, (*it).id, (*it).quantity);
                 mInventoryItems.clear();
@@ -359,11 +359,11 @@ void InventoryHandler::handleMessage(MessageIn &msg)
             // Storage access has been closed
 
             // Storage window deletes itself
-            mStorageWindow = 0;
+            mStorageWindow = nullptr;
 
             mStorage->clear();
             delete mStorage;
-            mStorage = 0;
+            mStorage = nullptr;
             break;
 
         case SMSG_PLAYER_EQUIPMENT:
diff --git a/src/net/tmwa/inventoryhandler.h b/src/net/tmwa/inventoryhandler.h
index 3eefdd9b..6224b572 100644
--- a/src/net/tmwa/inventoryhandler.h
+++ b/src/net/tmwa/inventoryhandler.h
@@ -51,13 +51,13 @@ class EquipBackend : public Equipment::Backend
             memset(mEquipment, -1, sizeof(mEquipment));
         }
 
-        Item *getEquipment(int index) const
+        Item *getEquipment(int index) const override
         {
             int invyIndex = mEquipment[index];
             return PlayerInfo::getInventory()->getItem(invyIndex);
         }
 
-        std::string getSlotName(int slotIndex) const
+        std::string getSlotName(int slotIndex) const override
         {
             switch (slotIndex)
             {
@@ -88,7 +88,7 @@ class EquipBackend : public Equipment::Backend
             }
         }
 
-        void clear()
+        void clear() override
         {
             for (int i = 0; i < EQUIP_VECTOR_END; i++)
             {
@@ -126,14 +126,14 @@ class EquipBackend : public Equipment::Backend
             inventoryWindow->updateButtons();
         }
 
-        void triggerUnequip(int slotIndex) const
+        void triggerUnequip(int slotIndex) const override
         {
             Item *item = getEquipment(slotIndex);
             if (item)
                 item->doEvent(Event::DoUnequip);
         }
 
-        int getSlotNumber() const
+        int getSlotNumber() const override
         { return EQUIP_VECTOR_END; }
 
         // Note the slot type id is equal to the slot Index for tA.
@@ -172,7 +172,7 @@ class InventoryItem
         }
 };
 
-typedef std::list<InventoryItem> InventoryItems;
+using InventoryItems = std::list<InventoryItem>;
 
 class InventoryHandler : public MessageHandler, public Net::InventoryHandler,
         public EventListener
@@ -185,20 +185,20 @@ class InventoryHandler : public MessageHandler, public Net::InventoryHandler,
 
         InventoryHandler();
 
-        ~InventoryHandler();
+        ~InventoryHandler() override;
 
-        void handleMessage(MessageIn &msg);
+        void handleMessage(MessageIn &msg) override;
 
-        void event(Event::Channel channel, const Event &event);
+        void event(Event::Channel channel, const Event &event) override;
 
-        bool canSplit(const Item *item);
+        bool canSplit(const Item *item) override;
 
-        size_t getSize(int type) const;
+        size_t getSize(int type) const override;
 
-        bool isWeaponSlot(unsigned int slotTypeId) const
+        bool isWeaponSlot(unsigned int slotTypeId) const override
         { return mEquips.isWeaponSlot(slotTypeId); }
 
-        bool isAmmoSlot(unsigned int slotTypeId) const
+        bool isAmmoSlot(unsigned int slotTypeId) const override
         { return mEquips.isAmmoSlot(slotTypeId); }
 
     private:
diff --git a/src/net/tmwa/itemhandler.h b/src/net/tmwa/itemhandler.h
index 3f58a172..29ed8246 100644
--- a/src/net/tmwa/itemhandler.h
+++ b/src/net/tmwa/itemhandler.h
@@ -31,7 +31,7 @@ class ItemHandler : public MessageHandler
     public:
         ItemHandler();
 
-        virtual void handleMessage(MessageIn &msg);
+        void handleMessage(MessageIn &msg) override;
 };
 
 } // namespace TmwAthena
diff --git a/src/net/tmwa/loginhandler.cpp b/src/net/tmwa/loginhandler.cpp
index 2fbc02d4..3e742f88 100644
--- a/src/net/tmwa/loginhandler.cpp
+++ b/src/net/tmwa/loginhandler.cpp
@@ -127,7 +127,7 @@ void LoginHandler::handleMessage(MessageIn &msg)
 
             for (int i = 0; i < worldCount; i++)
             {
-                WorldInfo *world = new WorldInfo;
+                auto *world = new WorldInfo;
 
                 world->address = msg.readInt32();
                 world->port = msg.readInt16();
diff --git a/src/net/tmwa/loginhandler.h b/src/net/tmwa/loginhandler.h
index fcc7c5cc..92a268f1 100644
--- a/src/net/tmwa/loginhandler.h
+++ b/src/net/tmwa/loginhandler.h
@@ -38,43 +38,43 @@ class LoginHandler : public MessageHandler, public Net::LoginHandler
     public:
         LoginHandler();
 
-        ~LoginHandler();
+        ~LoginHandler() override;
 
-        void handleMessage(MessageIn &msg);
+        void handleMessage(MessageIn &msg) override;
 
-        void connect();
+        void connect() override;
 
-        bool isConnected();
+        bool isConnected() override;
 
-        void disconnect();
+        void disconnect() override;
 
-        int supportedOptionalActions() const
+        int supportedOptionalActions() const override
         { return SetGenderOnRegister; }
 
-        bool isRegistrationEnabled();
+        bool isRegistrationEnabled() override;
 
-        void getRegistrationDetails();
+        void getRegistrationDetails() override;
 
-        unsigned int getMaxPasswordLength() const { return 25; }
+        unsigned int getMaxPasswordLength() const override { return 25; }
 
-        void loginAccount(LoginData *loginData);
+        void loginAccount(LoginData *loginData) override;
 
-        void logout();
+        void logout() override;
 
-        void changeEmail(const std::string &email);
+        void changeEmail(const std::string &email) override;
 
         void changePassword(const std::string &username,
                             const std::string &oldPassword,
-                            const std::string &newPassword);
+                            const std::string &newPassword) override;
 
-        void chooseServer(unsigned int server);
+        void chooseServer(unsigned int server) override;
 
-        void registerAccount(LoginData *loginData);
+        void registerAccount(LoginData *loginData) override;
 
         void unregisterAccount(const std::string &username,
-                               const std::string &password);
+                               const std::string &password) override;
 
-        Worlds getWorlds() const;
+        Worlds getWorlds() const override;
         void clearWorlds();
 
         const Token &getToken() const { return mToken; }
diff --git a/src/net/tmwa/messagehandler.cpp b/src/net/tmwa/messagehandler.cpp
index b22b623e..e9ce33b1 100644
--- a/src/net/tmwa/messagehandler.cpp
+++ b/src/net/tmwa/messagehandler.cpp
@@ -28,7 +28,7 @@
 namespace TmwAthena {
 
 MessageHandler::MessageHandler()
-    : mNetwork(NULL)
+    : mNetwork(nullptr)
 {
 }
 
diff --git a/src/net/tmwa/messagehandler.h b/src/net/tmwa/messagehandler.h
index b598f896..0d278c15 100644
--- a/src/net/tmwa/messagehandler.h
+++ b/src/net/tmwa/messagehandler.h
@@ -39,7 +39,7 @@ class MessageHandler : public Net::MessageHandler
     public:
         MessageHandler();
 
-        ~MessageHandler();
+        ~MessageHandler() override;
 
         virtual void handleMessage(MessageIn &msg) = 0;
 
@@ -49,7 +49,7 @@ class MessageHandler : public Net::MessageHandler
         Network *mNetwork;
 };
 
-typedef const std::unique_ptr<MessageHandler> MessageHandlerPtr;
+using MessageHandlerPtr = const std::unique_ptr<MessageHandler>;
 
 }
 
diff --git a/src/net/tmwa/network.cpp b/src/net/tmwa/network.cpp
index 5ff4f7e5..c1ba615f 100644
--- a/src/net/tmwa/network.cpp
+++ b/src/net/tmwa/network.cpp
@@ -91,7 +91,7 @@ namespace TmwAthena {
 
 int networkThread(void *data)
 {
-    Network *network = static_cast<Network*>(data);
+    auto *network = static_cast<Network*>(data);
 
     if (!network->realConnect())
         return -1;
@@ -101,16 +101,16 @@ int networkThread(void *data)
     return 0;
 }
 
-Network *Network::mInstance = 0;
+Network *Network::mInstance = nullptr;
 
 Network::Network():
-    mSocket(0),
+    mSocket(nullptr),
     mInBuffer(new char[BUFFER_SIZE]),
     mOutBuffer(new char[BUFFER_SIZE]),
     mInSize(0), mOutSize(0),
     mToSkip(0),
     mState(IDLE),
-    mWorkerThread(0)
+    mWorkerThread(nullptr)
 {
     SDLNet_Init();
 
@@ -124,7 +124,7 @@ Network::~Network()
     if (mState != IDLE && mState != NET_ERROR)
         disconnect();
 
-    mInstance = 0;
+    mInstance = nullptr;
 
     delete[] mInBuffer;
     delete[] mOutBuffer;
@@ -175,14 +175,14 @@ void Network::disconnect()
 
     if (mWorkerThread)
     {
-        SDL_WaitThread(mWorkerThread, NULL);
-        mWorkerThread = NULL;
+        SDL_WaitThread(mWorkerThread, nullptr);
+        mWorkerThread = nullptr;
     }
 
     if (mSocket)
     {
         SDLNet_TCP_Close(mSocket);
-        mSocket = 0;
+        mSocket = nullptr;
     }
 }
 
@@ -203,7 +203,7 @@ void Network::unregisterHandler(MessageHandler *handler)
         mMessageHandlers.erase(*i);
     }
 
-    handler->setNetwork(0);
+    handler->setNetwork(nullptr);
 }
 
 void Network::clearHandlers()
@@ -211,7 +211,7 @@ void Network::clearHandlers()
     MessageHandlerIterator i;
     for (i = mMessageHandlers.begin(); i != mMessageHandlers.end(); ++i)
     {
-        i->second->setNetwork(0);
+        i->second->setNetwork(nullptr);
     }
     mMessageHandlers.clear();
 }
@@ -222,7 +222,7 @@ void Network::dispatchMessages()
     {
         MessageIn msg = getNextMessage();
 
-        MessageHandlerIterator iter = mMessageHandlers.find(msg.getId());
+        auto iter = mMessageHandlers.find(msg.getId());
 
         if (msg.getLength() == 0)
             logger->error("Zero length packet received. Exiting.");
diff --git a/src/net/tmwa/network.h b/src/net/tmwa/network.h
index 079e71ca..97c7970f 100644
--- a/src/net/tmwa/network.h
+++ b/src/net/tmwa/network.h
@@ -120,8 +120,8 @@ class Network
         SDL_Thread *mWorkerThread;
         Mutex mMutex;
 
-        typedef std::map<Uint16, MessageHandler*> MessageHandlers;
-        typedef MessageHandlers::iterator MessageHandlerIterator;
+        using MessageHandlers = std::map<Uint16, MessageHandler *>;
+        using MessageHandlerIterator = MessageHandlers::iterator;
         MessageHandlers mMessageHandlers;
 
         static Network *mInstance;
diff --git a/src/net/tmwa/npchandler.cpp b/src/net/tmwa/npchandler.cpp
index 2b0a5b0a..9bd15572 100644
--- a/src/net/tmwa/npchandler.cpp
+++ b/src/net/tmwa/npchandler.cpp
@@ -76,7 +76,7 @@ void NpcHandler::handleMessage(MessageIn &msg)
     }
 
     int npcId = msg.readInt32();
-    Event *event = 0;
+    Event *event = nullptr;
 
     switch (msg.getId())
     {
diff --git a/src/net/tmwa/npchandler.h b/src/net/tmwa/npchandler.h
index 71486a40..0a0cd130 100644
--- a/src/net/tmwa/npchandler.h
+++ b/src/net/tmwa/npchandler.h
@@ -37,34 +37,34 @@ class NpcHandler : public MessageHandler, public Net::NpcHandler
     public:
         NpcHandler();
 
-        void handleMessage(MessageIn &msg);
+        void handleMessage(MessageIn &msg) override;
 
-        void startShopping(int beingId);
+        void startShopping(int beingId) override;
 
-        void buy(int beingId);
+        void buy(int beingId) override;
 
-        void sell(int beingId);
+        void sell(int beingId) override;
 
-        void buyItem(int beingId, int itemId, int amount);
+        void buyItem(int beingId, int itemId, int amount) override;
 
-        void sellItem(int beingId, int itemId, int amount);
+        void sellItem(int beingId, int itemId, int amount) override;
 
-        void endShopping(int beingId);
+        void endShopping(int beingId) override;
 
-        void talk(int npcId);
+        void talk(int npcId) override;
 
-        void nextDialog(int npcId);
+        void nextDialog(int npcId) override;
 
-        void closeDialog(int npcId);
+        void closeDialog(int npcId) override;
 
-        void menuSelect(int npcId, int choice);
+        void menuSelect(int npcId, int choice) override;
 
-        void integerInput(int npcId, int value);
+        void integerInput(int npcId, int value) override;
 
-        void stringInput(int npcId, const std::string &value);
+        void stringInput(int npcId, const std::string &value) override;
 
         void sendLetter(int npcId, const std::string &recipient,
-                        const std::string &text);
+                        const std::string &text) override;
 
 };
 
diff --git a/src/net/tmwa/partyhandler.cpp b/src/net/tmwa/partyhandler.cpp
index 4753dac1..b8d9c3c7 100644
--- a/src/net/tmwa/partyhandler.cpp
+++ b/src/net/tmwa/partyhandler.cpp
@@ -43,7 +43,7 @@ extern Net::PartyHandler *partyHandler;
 
 namespace TmwAthena {
 
-PartyTab *partyTab = 0;
+PartyTab *partyTab = nullptr;
 Party *taParty;
 
 PartyHandler::PartyHandler():
@@ -70,7 +70,7 @@ PartyHandler::PartyHandler():
 PartyHandler::~PartyHandler()
 {
     delete partyTab;
-    partyTab = 0;
+    partyTab = nullptr;
 }
 
 void PartyHandler::handleMessage(MessageIn &msg)
@@ -237,7 +237,7 @@ void PartyHandler::handleMessage(MessageIn &msg)
                     if (partyTab)
                     {
                         delete partyTab;
-                        partyTab = 0;
+                        partyTab = nullptr;
                     }
                     socialWindow->removeTab(taParty);
                 }
@@ -248,7 +248,7 @@ void PartyHandler::handleMessage(MessageIn &msg)
 
                     if (Being *b = actorSpriteManager->findBeing(id))
                     {
-                        b->setParty(NULL);
+                        b->setParty(nullptr);
                     }
 
                     taParty->removeMember(id);
diff --git a/src/net/tmwa/partyhandler.h b/src/net/tmwa/partyhandler.h
index 9a3570a8..5268f395 100644
--- a/src/net/tmwa/partyhandler.h
+++ b/src/net/tmwa/partyhandler.h
@@ -36,37 +36,37 @@ class PartyHandler : public MessageHandler, public Net::PartyHandler
     public:
         PartyHandler();
 
-        ~PartyHandler();
+        ~PartyHandler() override;
 
-        void handleMessage(MessageIn &msg);
+        void handleMessage(MessageIn &msg) override;
 
-        void create(const std::string &name = "");
+        void create(const std::string &name = "") override;
 
-        void join(int partyId);
+        void join(int partyId) override;
 
-        void invite(Being *being);
+        void invite(Being *being) override;
 
-        void invite(const std::string &name);
+        void invite(const std::string &name) override;
 
-        void inviteResponse(const std::string &inviter, bool accept);
+        void inviteResponse(const std::string &inviter, bool accept) override;
 
-        void leave();
+        void leave() override;
 
-        void kick(Being *being);
+        void kick(Being *being) override;
 
-        void kick(const std::string &name);
+        void kick(const std::string &name) override;
 
-        void chat(const std::string &text);
+        void chat(const std::string &text) override;
 
-        void requestPartyMembers();
+        void requestPartyMembers() override;
 
-        PartyShare getShareExperience() { return mShareExp; }
+        PartyShare getShareExperience() override { return mShareExp; }
 
-        void setShareExperience(PartyShare share);
+        void setShareExperience(PartyShare share) override;
 
-        PartyShare getShareItems() { return mShareItems; }
+        PartyShare getShareItems() override { return mShareItems; }
 
-        void setShareItems(PartyShare share);
+        void setShareItems(PartyShare share) override;
 
     private:
         PartyShare mShareExp, mShareItems;
diff --git a/src/net/tmwa/playerhandler.cpp b/src/net/tmwa/playerhandler.cpp
index c598c5f9..6ef669e4 100644
--- a/src/net/tmwa/playerhandler.cpp
+++ b/src/net/tmwa/playerhandler.cpp
@@ -60,9 +60,9 @@ namespace {
      */
     struct WeightListener : public gcn::ActionListener
     {
-        void action(const gcn::ActionEvent &event)
+        void action(const gcn::ActionEvent &event) override
         {
-            weightNotice = NULL;
+            weightNotice = nullptr;
         }
     } weightListener;
 
@@ -71,10 +71,10 @@ namespace {
      */
     struct DeathListener : public gcn::ActionListener
     {
-        void action(const gcn::ActionEvent &event)
+        void action(const gcn::ActionEvent &event) override
         {
             Net::getPlayerHandler()->respawn();
-            deathNotice = NULL;
+            deathNotice = nullptr;
 
             BuyDialog::closeAll();
             BuySellDialog::closeAll();
diff --git a/src/net/tmwa/playerhandler.h b/src/net/tmwa/playerhandler.h
index 2c4b6194..24284ee4 100644
--- a/src/net/tmwa/playerhandler.h
+++ b/src/net/tmwa/playerhandler.h
@@ -34,35 +34,35 @@ class PlayerHandler : public MessageHandler, public Net::PlayerHandler
     public:
         PlayerHandler();
 
-        void handleMessage(MessageIn &msg);
+        void handleMessage(MessageIn &msg) override;
 
-        void attack(int id);
-        void emote(int emoteId);
+        void attack(int id) override;
+        void emote(int emoteId) override;
 
-        void increaseAttribute(int attr);
-        void decreaseAttribute(int attr);
-        void increaseSkill(int skillId);
+        void increaseAttribute(int attr) override;
+        void decreaseAttribute(int attr) override;
+        void increaseSkill(int skillId) override;
 
-        void pickUp(FloorItem *floorItem);
-        void setDirection(char direction);
-        void setDestination(int x, int y, int direction = -1);
-        void changeAction(Being::Action action);
+        void pickUp(FloorItem *floorItem) override;
+        void setDirection(char direction) override;
+        void setDestination(int x, int y, int direction = -1) override;
+        void changeAction(Being::Action action) override;
 
-        void respawn();
+        void respawn() override;
 
-        void ignorePlayer(const std::string &player, bool ignore);
-        void ignoreAll(bool ignore);
+        void ignorePlayer(const std::string &player, bool ignore) override;
+        void ignoreAll(bool ignore) override;
 
-        bool canUseMagic();
-        bool canCorrectAttributes();
+        bool canUseMagic() override;
+        bool canCorrectAttributes() override;
 
-        int getJobLocation();
+        int getJobLocation() override;
 
-        Vector getDefaultMoveSpeed() const;
+        Vector getDefaultMoveSpeed() const override;
 
-        Vector getPixelsPerTickMoveSpeed(const Vector &speed, Map *map = 0);
+        Vector getPixelsPerTickMoveSpeed(const Vector &speed, Map *map = nullptr) override;
 
-        bool usePixelPrecision()
+        bool usePixelPrecision() override
         { return false; }
 };
 
diff --git a/src/net/tmwa/specialhandler.h b/src/net/tmwa/specialhandler.h
index bb772ff1..f43c900e 100644
--- a/src/net/tmwa/specialhandler.h
+++ b/src/net/tmwa/specialhandler.h
@@ -34,15 +34,15 @@ class SpecialHandler : public MessageHandler, public Net::SpecialHandler
     public:
         SpecialHandler();
 
-        void handleMessage(MessageIn &msg);
+        void handleMessage(MessageIn &msg) override;
 
-        void use(int id);
+        void use(int id) override;
 
-        void use(int id, int level, int beingId);
+        void use(int id, int level, int beingId) override;
 
-        void use(int id, int level, int x, int y);
+        void use(int id, int level, int x, int y) override;
 
-        void use(int id, const std::string &map);
+        void use(int id, const std::string &map) override;
 };
 
 } // namespace TmwAthena
diff --git a/src/net/tmwa/tradehandler.cpp b/src/net/tmwa/tradehandler.cpp
index a02056a4..2441d83a 100644
--- a/src/net/tmwa/tradehandler.cpp
+++ b/src/net/tmwa/tradehandler.cpp
@@ -51,9 +51,9 @@ ConfirmDialog *confirmDlg;
 namespace {
     struct RequestTradeListener : public gcn::ActionListener
     {
-        void action(const gcn::ActionEvent &event)
+        void action(const gcn::ActionEvent &event) override
         {
-            confirmDlg = 0;
+            confirmDlg = nullptr;
             Net::getTradeHandler()->respond(event.getId() == "yes");
         }
     } listener;
@@ -77,7 +77,7 @@ TradeHandler::TradeHandler()
     };
     handledMessages = _messages;
     tradeHandler = this;
-    confirmDlg = 0;
+    confirmDlg = nullptr;
 }
 
 
diff --git a/src/net/tmwa/tradehandler.h b/src/net/tmwa/tradehandler.h
index 60ee4444..d4f2494f 100644
--- a/src/net/tmwa/tradehandler.h
+++ b/src/net/tmwa/tradehandler.h
@@ -34,23 +34,23 @@ class TradeHandler : public MessageHandler, public Net::TradeHandler
     public:
         TradeHandler();
 
-        void handleMessage(MessageIn &msg);
+        void handleMessage(MessageIn &msg) override;
 
-        void request(Being *being);
+        void request(Being *being) override;
 
-        void respond(bool accept);
+        void respond(bool accept) override;
 
-        void addItem(Item *item, int amount);
+        void addItem(Item *item, int amount) override;
 
-        void removeItem(int slotNum, int amount);
+        void removeItem(int slotNum, int amount) override;
 
-        void setMoney(int amount);
+        void setMoney(int amount) override;
 
-        void confirm();
+        void confirm() override;
 
-        void finish();
+        void finish() override;
 
-        void cancel();
+        void cancel() override;
 
     private:
         bool mTrading;
diff --git a/src/net/worldinfo.h b/src/net/worldinfo.h
index 2bc3b316..d9596239 100644
--- a/src/net/worldinfo.h
+++ b/src/net/worldinfo.h
@@ -33,6 +33,6 @@ struct WorldInfo {
     std::string updateHost;
 };
 
-typedef std::vector<WorldInfo*> Worlds;
+using Worlds = std::vector<WorldInfo *>;
 
 #endif // WORLD_INFO_H
diff --git a/src/openglgraphics.cpp b/src/openglgraphics.cpp
index d831d9ff..008f1daa 100644
--- a/src/openglgraphics.cpp
+++ b/src/openglgraphics.cpp
@@ -379,8 +379,8 @@ void OpenGLGraphics::drawImagePattern(Image *image, int x, int y, int w, int h)
     if (iw == 0 || ih == 0)
         return;
 
-    const float tw = static_cast<float>(image->getTextureWidth());
-    const float th = static_cast<float>(image->getTextureHeight());
+    const auto tw = static_cast<float>(image->getTextureWidth());
+    const auto th = static_cast<float>(image->getTextureHeight());
 
     glColor4f(1.0f, 1.0f, 1.0f, image->mAlpha);
 
@@ -528,8 +528,8 @@ void OpenGLGraphics::drawRescaledImagePattern(Image *image,
     // Draw a set of textured rectangles
     if (image->getTextureType() == GL_TEXTURE_2D)
     {
-        const float tw = static_cast<float>(image->getTextureWidth());
-        const float th = static_cast<float>(image->getTextureHeight());
+        const auto tw = static_cast<float>(image->getTextureWidth());
+        const auto th = static_cast<float>(image->getTextureHeight());
 
         const float texX1 = static_cast<float>(srcX) / tw;
         const float texY1 = static_cast<float>(srcY) / th;
@@ -706,7 +706,7 @@ SDL_Surface* OpenGLGraphics::getScreenshot()
 
     // Flip the screenshot, as OpenGL has 0,0 in bottom left
     unsigned int lineSize = 3 * w;
-    GLubyte* buf = (GLubyte*)malloc(lineSize);
+    auto* buf = (GLubyte*)malloc(lineSize);
 
     for (int i = 0; i < (h / 2); i++)
     {
diff --git a/src/openglgraphics.h b/src/openglgraphics.h
index 01bca360..d300dfd7 100644
--- a/src/openglgraphics.h
+++ b/src/openglgraphics.h
@@ -34,7 +34,7 @@ class OpenGLGraphics : public Graphics
     public:
         OpenGLGraphics();
 
-        ~OpenGLGraphics();
+        ~OpenGLGraphics() override;
 
         /**
          * Sets whether vertical refresh syncing is enabled. Takes effect
@@ -53,15 +53,15 @@ class OpenGLGraphics : public Graphics
         void setReduceInputLag(bool reduceInputLag);
         bool getReduceInputLag() const { return mReduceInputLag; }
 
-        bool setVideoMode(int w, int h, bool fs);
+        bool setVideoMode(int w, int h, bool fs) override;
 
-        void videoResized(int w, int h);
+        void videoResized(int w, int h) override;
 
         bool drawImage(Image *image,
                        int srcX, int srcY,
                        int dstX, int dstY,
                        int width, int height,
-                       bool useColor);
+                       bool useColor) override;
 
         /**
          * Draws a rescaled version of the image
@@ -70,43 +70,43 @@ class OpenGLGraphics : public Graphics
                                int dstX, int dstY,
                                int width, int height,
                                int desiredWidth, int desiredHeight,
-                               bool useColor);
+                               bool useColor) override;
 
         void drawImagePattern(Image *image,
                               int x, int y,
-                              int w, int h);
+                              int w, int h) override;
 
         /**
          * Draw a pattern based on a rescaled version of the given image...
          */
         void drawRescaledImagePattern(Image *image,
                                       int x, int y, int w, int h,
-                                      int scaledWidth, int scaledHeight);
+                                      int scaledWidth, int scaledHeight) override;
 
-        void updateScreen();
+        void updateScreen() override;
 
-        void _beginDraw();
-        void _endDraw();
+        void _beginDraw() override;
+        void _endDraw() override;
 
-        bool pushClipArea(gcn::Rectangle area);
-        void popClipArea();
+        bool pushClipArea(gcn::Rectangle area) override;
+        void popClipArea() override;
 
-        void setColor(const gcn::Color &color);
+        void setColor(const gcn::Color &color) override;
 
-        void drawPoint(int x, int y);
+        void drawPoint(int x, int y) override;
 
-        void drawLine(int x1, int y1, int x2, int y2);
+        void drawLine(int x1, int y1, int x2, int y2) override;
 
         void drawRectangle(const gcn::Rectangle &rect, bool filled);
 
-        void drawRectangle(const gcn::Rectangle &rect);
+        void drawRectangle(const gcn::Rectangle &rect) override;
 
-        void fillRectangle(const gcn::Rectangle &rect);
+        void fillRectangle(const gcn::Rectangle &rect) override;
 
         /**
          * Takes a screenshot and returns it as SDL surface.
          */
-        SDL_Surface *getScreenshot();
+        SDL_Surface *getScreenshot() override;
 
         static void bindTexture(GLenum target, GLuint texture);
 
diff --git a/src/particle.cpp b/src/particle.cpp
index f84bb2ed..64f25999 100644
--- a/src/particle.cpp
+++ b/src/particle.cpp
@@ -70,7 +70,7 @@ Particle::Particle(Map *map):
     mRandomness(0),
     mBounce(0.0f),
     mFollow(false),
-    mTarget(NULL),
+    mTarget(nullptr),
     mAcceleration(0.0f),
     mInvDieDistance(-1.0f),
     mMomentum(1.0f)
@@ -195,11 +195,11 @@ bool Particle::update()
         // Update child emitters
         if ((mLifetimePast-1)%Particle::emitterSkip == 0)
         {
-            for (EmitterIterator e = mChildEmitters.begin();
+            for (auto e = mChildEmitters.begin();
                  e != mChildEmitters.end(); e++)
             {
                 Particles newParticles = (*e)->createParticles(mLifetimePast);
-                for (ParticleIterator p = newParticles.begin();
+                for (auto p = newParticles.begin();
                      p != newParticles.end(); p++)
                 {
                     (*p)->moveBy(mPos);
@@ -224,7 +224,7 @@ bool Particle::update()
 
     // Update child particles
 
-    for (ParticleIterator p = mChildParticles.begin();
+    for (auto p = mChildParticles.begin();
          p != mChildParticles.end();)
     {
         //move particle with its parent if desired
@@ -254,7 +254,7 @@ bool Particle::update()
 void Particle::moveBy(const Vector &change)
 {
     mPos += change;
-    for (ParticleIterator p = mChildParticles.begin();
+    for (auto p = mChildParticles.begin();
          p != mChildParticles.end(); p++)
     {
         if ((*p)->doesFollow())
@@ -271,7 +271,7 @@ void Particle::moveTo(float x, float y)
 
 Particle *Particle::createChild()
 {
-    Particle *newParticle = new Particle(mMap);
+    auto *newParticle = new Particle(mMap);
     mChildParticles.push_back(newParticle);
     return newParticle;
 }
@@ -279,7 +279,7 @@ Particle *Particle::createChild()
 Particle *Particle::addEffect(const std::string &particleEffectFile,
                               int pixelX, int pixelY, int rotation)
 {
-    Particle *newParticle = NULL;
+    Particle *newParticle = nullptr;
 
     std::string::size_type pos = particleEffectFile.find('|');
     std::string dyePalettes;
@@ -292,7 +292,7 @@ Particle *Particle::addEffect(const std::string &particleEffectFile,
     if (!rootNode || !xmlStrEqual(rootNode->name, BAD_CAST "effect"))
     {
         logger->log("Error loading particle: %s", particleEffectFile.c_str());
-        return NULL;
+        return nullptr;
     }
 
     ResourceManager *resman = ResourceManager::getInstance();
@@ -432,7 +432,7 @@ void Particle::adjustEmitterSize(int w, int h)
 {
     if (mAllowSizeAdjust)
     {
-        for (EmitterIterator e = mChildEmitters.begin();
+        for (auto e = mChildEmitters.begin();
              e != mChildEmitters.end(); e++)
         {
             (*e)->adjustSize(w, h);
diff --git a/src/particle.h b/src/particle.h
index 18deb5c7..24ab74ce 100644
--- a/src/particle.h
+++ b/src/particle.h
@@ -33,10 +33,10 @@ class Map;
 class Particle;
 class ParticleEmitter;
 
-typedef std::list<Particle *> Particles;
-typedef Particles::iterator ParticleIterator;
-typedef std::list<ParticleEmitter *> Emitters;
-typedef Emitters::iterator EmitterIterator;
+using Particles = std::list<Particle *>;
+using ParticleIterator = Particles::iterator;
+using Emitters = std::list<ParticleEmitter *>;
+using EmitterIterator = Emitters::iterator;
 
 /**
  * A particle spawned by a ParticleEmitter.
@@ -68,7 +68,7 @@ class Particle : public Actor
          */
         Particle(Map *map);
 
-        ~Particle();
+        ~Particle() override;
 
         /**
          * Deletes all child particles and emitters.
@@ -90,12 +90,12 @@ class Particle : public Actor
         /**
          * Draws the particle image.
          */
-        virtual bool draw(Graphics *graphics, int offsetX, int offsetY) const;
+        bool draw(Graphics *graphics, int offsetX, int offsetY) const override;
 
         /**
          * Do not draw particles when beind other objects
          */
-        virtual bool drawnWhenBehind() const
+        bool drawnWhenBehind() const override
         { return false; }
 
         /**
@@ -251,13 +251,13 @@ class Particle : public Actor
         { mAutoDelete = false; }
 
         /** We consider particles (at least for now) to be one layer-sprites */
-        virtual int getNumberOfLayers() const
+        int getNumberOfLayers() const override
         { return 1; }
 
-        virtual float getAlpha() const
+        float getAlpha() const override
         { return 1.0f; }
 
-        virtual void setAlpha(float alpha) {}
+        void setAlpha(float alpha) override {}
 
         virtual void setDeathEffect(const std::string &effectFile, char conditions)
         { mDeathEffect = effectFile; mDeathEffectConditions = conditions; }
diff --git a/src/particlecontainer.cpp b/src/particlecontainer.cpp
index f48f1f44..002d4488 100644
--- a/src/particlecontainer.cpp
+++ b/src/particlecontainer.cpp
@@ -87,7 +87,7 @@ void ParticleList::removeLocally(Particle *particle)
 
 void ParticleList::clearLocally()
 {
-    for (std::list<Particle *>::iterator it = mElements.begin();
+    for (auto it = mElements.begin();
          it != mElements.end(); it++)
         (*it)->kill();
 
@@ -98,7 +98,7 @@ void ParticleList::moveTo(float x, float y)
 {
     ParticleContainer::moveTo(x, y);
 
-    for (std::list<Particle *>::iterator it = mElements.begin();
+    for (auto it = mElements.begin();
          it != mElements.end();)
     {
         (*it)->moveTo(x, y);
@@ -145,7 +145,7 @@ void ParticleVector::delLocally(int index)
     Particle *p = mIndexedElements[index];
     if (p)
     {
-        mIndexedElements[index] = NULL;
+        mIndexedElements[index] = nullptr;
         p->kill();
     }
 }
@@ -160,7 +160,7 @@ void ParticleVector::moveTo(float x, float y)
 {
     ParticleContainer::moveTo(x, y);
 
-    for (std::vector<Particle *>::iterator it = mIndexedElements.begin();
+    for (auto it = mIndexedElements.begin();
          it != mIndexedElements.end(); it++)
     {
         if (*it)
diff --git a/src/particleemitter.cpp b/src/particleemitter.cpp
index a8b22e97..ec646f97 100644
--- a/src/particleemitter.cpp
+++ b/src/particleemitter.cpp
@@ -43,7 +43,7 @@ ParticleEmitter::ParticleEmitter(xmlNodePtr emitterNode, Particle *target,
                                  Map *map, int rotation,
                                  const std::string& dyePalettes):
     mOutputPauseLeft(0),
-    mParticleImage(0)
+    mParticleImage(nullptr)
 {
     mMap = map;
     mParticleTarget = target;
@@ -464,12 +464,12 @@ std::list<Particle *> ParticleEmitter::createParticles(int tick)
         }
         else if (mParticleRotation.getLength() > 0)
         {
-            Animation *newAnimation = new Animation(mParticleRotation);
+            auto *newAnimation = new Animation(mParticleRotation);
             newParticle = new RotationalParticle(mMap, newAnimation);
         }
         else if (mParticleAnimation.getLength() > 0)
         {
-            Animation *newAnimation = new Animation(mParticleAnimation);
+            auto *newAnimation = new Animation(mParticleAnimation);
             newParticle = new AnimationParticle(mMap, newAnimation);
         }
         else
@@ -506,7 +506,7 @@ std::list<Particle *> ParticleEmitter::createParticles(int tick)
         newParticle->setFadeIn(mParticleFadeIn.value(tick));
         newParticle->setAlpha(mParticleAlpha.value(tick));
 
-        for (std::list<ParticleEmitter>::iterator i = mParticleChildEmitters.begin();
+        for (auto i = mParticleChildEmitters.begin();
              i != mParticleChildEmitters.end();
              i++)
         {
diff --git a/src/party.cpp b/src/party.cpp
index 126a63c1..cb9541e8 100644
--- a/src/party.cpp
+++ b/src/party.cpp
@@ -60,7 +60,7 @@ PartyMember *Party::addMember(int id, const std::string &name)
 
 PartyMember *Party::getMember(int id) const
 {
-    MemberList::const_iterator itr = mMembers.begin(),
+    auto itr = mMembers.begin(),
                                itr_end = mMembers.end();
     while (itr != itr_end)
     {
@@ -71,12 +71,12 @@ PartyMember *Party::getMember(int id) const
         ++itr;
     }
 
-    return NULL;
+    return nullptr;
 }
 
 PartyMember *Party::getMember(const std::string &name) const
 {
-    MemberList::const_iterator itr = mMembers.begin(),
+    auto itr = mMembers.begin(),
                                itr_end = mMembers.end();
     while (itr != itr_end)
     {
@@ -87,12 +87,12 @@ PartyMember *Party::getMember(const std::string &name) const
         ++itr;
     }
 
-    return NULL;
+    return nullptr;
 }
 
 void Party::removeMember(PartyMember *member)
 {
-    MemberList::iterator itr = mMembers.begin(),
+    auto itr = mMembers.begin(),
                                itr_end = mMembers.end();
     while(itr != itr_end)
     {
@@ -109,7 +109,7 @@ void Party::removeMember(PartyMember *member)
 
 void Party::removeMember(int id)
 {
-    MemberList::iterator itr = mMembers.begin(),
+    auto itr = mMembers.begin(),
                                itr_end = mMembers.end();
     while(itr != itr_end)
     {
@@ -125,7 +125,7 @@ void Party::removeMember(int id)
 
 void Party::removeMember(const std::string &name)
 {
-    MemberList::iterator itr = mMembers.begin(),
+    auto itr = mMembers.begin(),
                                itr_end = mMembers.end();
     while(itr != itr_end)
     {
@@ -141,13 +141,13 @@ void Party::removeMember(const std::string &name)
 
 void Party::removeFromMembers()
 {
-    MemberList::iterator itr = mMembers.begin(),
+    auto itr = mMembers.begin(),
                                itr_end = mMembers.end();
     while(itr != itr_end)
     {
         Being *b = actorSpriteManager->findBeing((*itr)->getID());
         if (b)
-            b->setParty(NULL);
+            b->setParty(nullptr);
         ++itr;
     }
 }
@@ -171,7 +171,7 @@ bool Party::isMember(PartyMember *member) const
     if (member->mParty != nullptr && member->mParty != this)
         return false;
 
-    MemberList::const_iterator itr = mMembers.begin(),
+    auto itr = mMembers.begin(),
                                      itr_end = mMembers.end();
     while (itr != itr_end)
     {
@@ -188,7 +188,7 @@ bool Party::isMember(PartyMember *member) const
 
 bool Party::isMember(int id) const
 {
-    MemberList::const_iterator itr = mMembers.begin(),
+    auto itr = mMembers.begin(),
                                      itr_end = mMembers.end();
     while (itr != itr_end)
     {
@@ -204,7 +204,7 @@ bool Party::isMember(int id) const
 
 bool Party::isMember(const std::string &name) const
 {
-    MemberList::const_iterator itr = mMembers.begin(),
+    auto itr = mMembers.begin(),
                                      itr_end = mMembers.end();
     while (itr != itr_end)
     {
@@ -221,7 +221,7 @@ bool Party::isMember(const std::string &name) const
 void Party::getNames(std::vector<std::string> &names) const
 {
     names.clear();
-    MemberList::const_iterator it = mMembers.begin(),
+    auto it = mMembers.begin(),
                                      it_end = mMembers.end();
     while (it != it_end)
     {
@@ -232,7 +232,7 @@ void Party::getNames(std::vector<std::string> &names) const
 
 Party *Party::getParty(int id)
 {
-    PartyMap::iterator it = parties.find(id);
+    auto it = parties.find(id);
     if (it != parties.end())
         return it->second;
 
diff --git a/src/party.h b/src/party.h
index 90e9d784..ac421fd9 100644
--- a/src/party.h
+++ b/src/party.h
@@ -128,11 +128,11 @@ public:
      * Get size of members list.
      * @return Returns the number of members in the party.
      */
-    int getNumberOfElements() {
+    int getNumberOfElements() override {
         return mMembers.size();
     }
 
-    Avatar *getAvatarAt(int i);
+    Avatar *getAvatarAt(int i) override;
 
     /**
      * Get whether user can invite users to this party.
@@ -156,7 +156,7 @@ public:
     static Party *getParty(int id);
 
 private:
-    typedef std::map<int, Party*> PartyMap;
+    using PartyMap = std::map<int, Party *>;
     static PartyMap parties;
 
     /**
@@ -164,9 +164,9 @@ private:
      */
     Party(short id);
 
-    ~Party();
+    ~Party() override;
 
-    typedef std::vector<PartyMember*> MemberList;
+    using MemberList = std::vector<PartyMember *>;
     MemberList mMembers;
     std::string mName;
     short mId;
diff --git a/src/playerinfo.cpp b/src/playerinfo.cpp
index 03c48340..22c01516 100644
--- a/src/playerinfo.cpp
+++ b/src/playerinfo.cpp
@@ -33,12 +33,12 @@ namespace PlayerInfo {
 
 class PlayerLogic;
 
-static PlayerLogic *mListener = 0;
+static PlayerLogic *mListener = nullptr;
 
 static PlayerInfoBackend mData;
 
-static Inventory *mInventory = 0;
-static Equipment *mEquipment = 0;
+static Inventory *mInventory = nullptr;
+static Equipment *mEquipment = nullptr;
 
 static bool mStorageCount = 0;
 
@@ -63,7 +63,7 @@ void triggerAttr(int id, int old)
 
 void triggerStat(int id, const std::string &changed, int old1, int old2 = 0)
 {
-    StatMap::iterator it = mData.mStats.find(id);
+    auto it = mData.mStats.find(id);
     Event event(Event::UpdateStat);
     event.setInt("id", id);
     event.setInt("base", it->second.base);
@@ -319,7 +319,7 @@ void logic()
     if ((mSpecialRechargeUpdateNeeded%11) == 0)
     {
         mSpecialRechargeUpdateNeeded = 0;
-        for (SpecialsMap::iterator it = mSpecials.begin(),
+        for (auto it = mSpecials.begin(),
              it_end = mSpecials.end(); it != it_end; it++)
         {
             it->second.currentMana += it->second.recharge;
@@ -341,7 +341,7 @@ public:
         listen(Event::GameChannel);
     }
 
-    void event(Event::Channel channel, const Event &event)
+    void event(Event::Channel channel, const Event &event) override
     {
         if (channel == Event::ClientChannel)
         {
@@ -351,7 +351,7 @@ public:
 
                 if (newState == STATE_GAME)
                 {
-                    if (mInventory == 0)
+                    if (mInventory == nullptr)
                     {
                         mInventory = new Inventory(Inventory::INVENTORY);
                         mEquipment = new Equipment();
@@ -366,8 +366,8 @@ public:
                 delete mInventory;
                 delete mEquipment;
 
-                mInventory = 0;
-                mEquipment = 0;
+                mInventory = nullptr;
+                mEquipment = nullptr;
             }
         }
     }
diff --git a/src/playerinfo.h b/src/playerinfo.h
index e228ec7e..69434d5b 100644
--- a/src/playerinfo.h
+++ b/src/playerinfo.h
@@ -50,8 +50,8 @@ struct Stat
     int expNeed;
 };
 
-typedef std::map<int, int> IntMap;
-typedef std::map<int, Stat> StatMap;
+using IntMap = std::map<int, int>;
+using StatMap = std::map<int, Stat>;
 
 /**
  * Backend for core player information.
@@ -84,7 +84,7 @@ struct Special
     int recharge;
 };
 
-typedef std::map<int, Special> SpecialsMap;
+using SpecialsMap = std::map<int, Special>;
 
 /**
  * A database like namespace which holds global info about the localplayer
diff --git a/src/playerrelations.cpp b/src/playerrelations.cpp
index 47bc1913..f65b1fc7 100644
--- a/src/playerrelations.cpp
+++ b/src/playerrelations.cpp
@@ -40,26 +40,26 @@
 class PlayerConfSerialiser : public ConfigurationListManager<std::pair<std::string, PlayerRelation *>,
                                                              std::map<std::string, PlayerRelation *> *>
 {
-    virtual ConfigurationObject *writeConfigItem(std::pair<std::string, PlayerRelation *> value,
-                                                 ConfigurationObject *cobj)
+    ConfigurationObject *writeConfigItem(std::pair<std::string, PlayerRelation *> value,
+                                                 ConfigurationObject *cobj) override
     {
         if (!value.second)
-            return NULL;
+            return nullptr;
         cobj->setValue(NAME, value.first);
         cobj->setValue(RELATION, toString(value.second->mRelation));
 
         return cobj;
     }
 
-    virtual std::map<std::string, PlayerRelation *> *
+    std::map<std::string, PlayerRelation *> *
     readConfigItem(ConfigurationObject *cobj,
-                   std::map<std::string, PlayerRelation *> *container)
+                   std::map<std::string, PlayerRelation *> *container) override
     {
         std::string name = cobj->getValue(NAME, "");
         if (name.empty())
             return container;
 
-        std::map<std::string, PlayerRelation *>::iterator it =
+        auto it =
             (*container).find(name);
         if (it != (*container).end())
         {
@@ -89,7 +89,7 @@ PlayerRelation::PlayerRelation(Relation relation)
 PlayerRelationsManager::PlayerRelationsManager() :
     mPersistIgnores(false),
     mDefaultPermissions(PlayerRelation::DEFAULT),
-    mIgnoreStrategy(0)
+    mIgnoreStrategy(nullptr)
 {
 }
 
@@ -187,7 +187,7 @@ unsigned int PlayerRelationsManager::checkPermissionSilently(
                                                   const std::string &playerName,
                                                   unsigned int flags)
 {
-    PlayerRelation *r = 0;
+    PlayerRelation *r = nullptr;
 
     std::map<std::string, PlayerRelation *>::const_iterator it =
         mRelations.find(playerName);
@@ -247,9 +247,9 @@ bool PlayerRelationsManager::hasPermission(const std::string &name,
 void PlayerRelationsManager::setRelation(const std::string &playerName,
                                          PlayerRelation::Relation relation)
 {
-    PlayerRelation *r = 0;
+    PlayerRelation *r = nullptr;
 
-    std::map<std::string, PlayerRelation *>::iterator it =
+    auto it =
         mRelations.find(playerName);
     if (it != mRelations.end())
         r = it->second;
@@ -263,9 +263,9 @@ void PlayerRelationsManager::setRelation(const std::string &playerName,
 
 std::vector<std::string> * PlayerRelationsManager::getPlayers() const
 {
-    std::vector<std::string> *retval = new std::vector<std::string>();
+    auto *retval = new std::vector<std::string>();
 
-    for (std::map<std::string, PlayerRelation *>::const_iterator it = mRelations.begin(); it != mRelations.end(); it++)
+    for (auto it = mRelations.begin(); it != mRelations.end(); it++)
         if (it->second)
             retval->push_back(it->first);
 
@@ -276,7 +276,7 @@ std::vector<std::string> * PlayerRelationsManager::getPlayers() const
 
 void PlayerRelationsManager::removePlayer(const std::string &name)
 {
-    std::map<std::string, PlayerRelation *>::iterator it =
+    auto it =
         mRelations.find(name);
     if (it != mRelations.end())
     {
@@ -291,7 +291,7 @@ void PlayerRelationsManager::removePlayer(const std::string &name)
 
 PlayerRelation::Relation PlayerRelationsManager::getRelation(const std::string &name) const
 {
-    std::map<std::string, PlayerRelation *>::const_iterator it = mRelations.find(name);
+    auto it = mRelations.find(name);
     if (it != mRelations.end())
         return it->second->mRelation;
 
@@ -328,7 +328,7 @@ public:
         mShortName = PLAYER_IGNORE_STRATEGY_NOP;
     }
 
-    virtual void ignore(Being *being, unsigned int flags)
+    void ignore(Being *being, unsigned int flags) override
     {
     }
 };
@@ -342,7 +342,7 @@ public:
         mShortName = "dotdotdot";
     }
 
-    virtual void ignore(Being *being, unsigned int flags)
+    void ignore(Being *being, unsigned int flags) override
      {
          being->setSpeech("...", 500);
      }
@@ -358,7 +358,7 @@ public:
         mShortName = "blinkname";
     }
 
-    virtual void ignore(Being *being, unsigned int flags)
+    void ignore(Being *being, unsigned int flags) override
     {
         being->flashName(200);
     }
diff --git a/src/position.cpp b/src/position.cpp
index f41f2c4f..64cf2225 100644
--- a/src/position.cpp
+++ b/src/position.cpp
@@ -29,7 +29,7 @@ std::ostream& operator <<(std::ostream &os, const Position &p)
 
 std::ostream& operator <<(std::ostream &os, const Path &path)
 {
-    Path::const_iterator i = path.begin(), i_end = path.end();
+    auto i = path.begin(), i_end = path.end();
 
     os << "(";
     while (i != i_end)
diff --git a/src/position.h b/src/position.h
index af36dd81..4622b8ed 100644
--- a/src/position.h
+++ b/src/position.h
@@ -38,8 +38,8 @@ struct Position
     int y;
 };
 
-typedef std::list<Position> Path;
-typedef Path::iterator PathIterator;
+using Path = std::list<Position>;
+using PathIterator = Path::iterator;
 
 /**
  * Appends a string representation of a position to the output stream.
diff --git a/src/properties.h b/src/properties.h
index 59318b80..40be8d7f 100644
--- a/src/properties.h
+++ b/src/properties.h
@@ -45,7 +45,7 @@ class Properties
         std::string getProperty(const std::string &name,
                                 const std::string &def = "") const
         {
-            PropertyMap::const_iterator i = mProperties.find(name);
+            auto i = mProperties.find(name);
             return (i != mProperties.end()) ? i->second : def;
         }
 
@@ -59,7 +59,7 @@ class Properties
          */
         float getFloatProperty(const std::string &name, float def = 0.0f) const
         {
-            PropertyMap::const_iterator i = mProperties.find(name);
+            auto i = mProperties.find(name);
             float ret = def;
             if (i != mProperties.end())
             {
@@ -80,7 +80,7 @@ class Properties
          */
         bool getBoolProperty(const std::string &name, bool def = false) const
         {
-            PropertyMap::const_iterator i = mProperties.find(name);
+            auto i = mProperties.find(name);
             bool ret = def;
             if (i != mProperties.end())
             {
@@ -116,7 +116,7 @@ class Properties
         }
 
     private:
-        typedef std::map<std::string, std::string> PropertyMap;
+        using PropertyMap = std::map<std::string, std::string>;
         PropertyMap mProperties;
 };
 
diff --git a/src/resources/action.cpp b/src/resources/action.cpp
index bfc130c8..c35498a4 100644
--- a/src/resources/action.cpp
+++ b/src/resources/action.cpp
@@ -36,7 +36,7 @@ Action::~Action()
 
 Animation *Action::getAnimation(int direction) const
 {
-    Animations::const_iterator i = mAnimations.find(direction);
+    auto i = mAnimations.find(direction);
 
     // When the given direction is not available, return the first one.
     // (either DEFAULT, or more usually DOWN).
diff --git a/src/resources/action.h b/src/resources/action.h
index 1d85bf62..bf229abd 100644
--- a/src/resources/action.h
+++ b/src/resources/action.h
@@ -43,8 +43,8 @@ class Action
         Animation *getAnimation(int direction) const;
 
     protected:
-        typedef std::map<int, Animation*> Animations;
-        typedef Animations::iterator AnimationIterator;
+        using Animations = std::map<int, Animation *>;
+        using AnimationIterator = Animations::iterator;
         Animations mAnimations;
 };
 
diff --git a/src/resources/animation.cpp b/src/resources/animation.cpp
index e4837e44..8ab7cc44 100644
--- a/src/resources/animation.cpp
+++ b/src/resources/animation.cpp
@@ -37,10 +37,10 @@ void Animation::addFrame(Image *image, int delay, int offsetX, int offsetY)
 
 void Animation::addTerminator()
 {
-    addFrame(NULL, 0, 0, 0);
+    addFrame(nullptr, 0, 0, 0);
 }
 
 bool Animation::isTerminator(const Frame &candidate)
 {
-    return (candidate.image == NULL);
+    return (candidate.image == nullptr);
 }
diff --git a/src/resources/attributes.cpp b/src/resources/attributes.cpp
index 58bff6f1..82871b2f 100644
--- a/src/resources/attributes.cpp
+++ b/src/resources/attributes.cpp
@@ -40,7 +40,7 @@
 
 namespace Attributes {
 
-    typedef struct
+    using Attribute = struct
     {
         unsigned int id;
         std::string name;
@@ -51,14 +51,14 @@ namespace Attributes {
         std::string scope;
         /** The playerInfo core Id the attribute is linked with or -1 if not */
         int playerInfoId;
-    } Attribute;
+    };
 
     /** Map for attributes. */
-    typedef std::map<unsigned int, Attribute> AttributeMap;
+    using AttributeMap = std::map<unsigned int, Attribute>;
     static AttributeMap attributes;
 
     /** tags = effects on attributes. */
-    typedef std::map< std::string, std::string > TagMap;
+    using TagMap = std::map<std::string, std::string>;
     static TagMap tags;
 
     /** List of modifiable attribute names used at character's creation. */
@@ -355,7 +355,7 @@ namespace Attributes {
         fillLabels();
 
         // Sanity checks on starting points
-        float modifiableAttributeCount = (float) attributeLabels.size();
+        auto modifiableAttributeCount = (float) attributeLabels.size();
         float averageValue = ((float) creationPoints) / modifiableAttributeCount;
         if (averageValue > attributeMaximum || averageValue < attributeMinimum
             || creationPoints < 1)
diff --git a/src/resources/beinginfo.cpp b/src/resources/beinginfo.cpp
index 5a277770..539254ac 100644
--- a/src/resources/beinginfo.cpp
+++ b/src/resources/beinginfo.cpp
@@ -86,20 +86,20 @@ const std::string &BeingInfo::getSound(SoundEvent event) const
 {
     static const std::string empty;
 
-    SoundEvents::const_iterator i = mSounds.find(event);
+    auto i = mSounds.find(event);
     return (i == mSounds.end()) ? empty :
                                   i->second->at(rand() % i->second->size());
 }
 
 const Attack *BeingInfo::getAttack(int id) const
 {
-    static Attack *empty = new Attack(SpriteAction::ATTACK,
+    static auto *empty = new Attack(SpriteAction::ATTACK,
                                       -1, // Default strike effect on monster
                                       paths.getIntValue("hitEffectId"),
                                       paths.getIntValue("criticalHitEffectId"),
                                       std::string());
 
-    Attacks::const_iterator it = mAttacks.find(id);
+    auto it = mAttacks.find(id);
     return (it == mAttacks.end()) ? empty : it->second;
 }
 
@@ -107,7 +107,7 @@ void BeingInfo::addAttack(int id, std::string action, int effectId,
                           int hitEffectId, int criticalHitEffectId,
                           const std::string &missileParticleFilename)
 {
-    Attacks::iterator it = mAttacks.find(id);
+    auto it = mAttacks.find(id);
     if (it != mAttacks.end())
         delete it->second;
 
diff --git a/src/resources/beinginfo.h b/src/resources/beinginfo.h
index b2cae5e2..3fa5b8b6 100644
--- a/src/resources/beinginfo.h
+++ b/src/resources/beinginfo.h
@@ -47,7 +47,7 @@ struct Attack {
     }
 };
 
-typedef std::map<int, Attack*> Attacks;
+using Attacks = std::map<int, Attack *>;
 
 enum SoundEvent
 {
@@ -57,7 +57,7 @@ enum SoundEvent
     SOUND_EVENT_DIE
 };
 
-typedef std::map<SoundEvent, std::vector<std::string>* > SoundEvents;
+using SoundEvents = std::map<SoundEvent, std::vector<std::string> *>;
 
 /**
  * Holds information about a certain type of monster. This includes the name
@@ -128,7 +128,7 @@ class BeingInfo
         Map::BlockType mBlockType;
 };
 
-typedef std::map<int, BeingInfo*> BeingInfos;
-typedef BeingInfos::iterator BeingInfoIterator;
+using BeingInfos = std::map<int, BeingInfo *>;
+using BeingInfoIterator = BeingInfos::iterator;
 
 #endif // BEINGINFO_H
diff --git a/src/resources/dye.cpp b/src/resources/dye.cpp
index 4e4016e4..ba2ad4b5 100644
--- a/src/resources/dye.cpp
+++ b/src/resources/dye.cpp
@@ -179,7 +179,7 @@ void DyePalette::getColor(double intensity, int color[3]) const
 Dye::Dye(const std::string &description)
 {
     for (int i = 0; i < 7; ++i)
-        mDyePalettes[i] = 0;
+        mDyePalettes[i] = nullptr;
 
     if (description.empty())
         return;
diff --git a/src/resources/emotedb.cpp b/src/resources/emotedb.cpp
index 04dd4bbb..fde7030a 100644
--- a/src/resources/emotedb.cpp
+++ b/src/resources/emotedb.cpp
@@ -60,7 +60,7 @@ void EmoteDB::readEmoteNode(xmlNodePtr node, const std::string &filename)
         return;
     }
 
-    Emote *currentEmote = new Emote;
+    auto *currentEmote = new Emote;
 
     currentEmote->name = XML::getProperty(node, "name", "unknown");
     currentEmote->effect = XML::getProperty(node, "effectid", -1);
diff --git a/src/resources/emotedb.h b/src/resources/emotedb.h
index 33195d82..cdcb5cf6 100644
--- a/src/resources/emotedb.h
+++ b/src/resources/emotedb.h
@@ -36,7 +36,7 @@ struct Emote
     int effect;
 };
 
-typedef std::map<int, Emote*> Emotes;
+using Emotes = std::map<int, Emote *>;
 
 /**
  * Emote information database.
@@ -55,7 +55,7 @@ namespace EmoteDB
 
     int getLast();
 
-    typedef Emotes::iterator EmotesIterator;
+    using EmotesIterator = Emotes::iterator;
 }
 
 #endif // EMOTE_DB_H
diff --git a/src/resources/hairdb.cpp b/src/resources/hairdb.cpp
index 2e9747a2..4ca4fa5c 100644
--- a/src/resources/hairdb.cpp
+++ b/src/resources/hairdb.cpp
@@ -96,7 +96,7 @@ const std::string &HairDB::getHairColor(int id)
 std::vector<int> HairDB::getHairStyleIds(int maxId) const
 {
     std::vector<int> hairStylesIds;
-    for (HairStylesConstIterator it = mHairStyles.begin(),
+    for (auto it = mHairStyles.begin(),
         it_end = mHairStyles.end(); it != it_end; ++it)
     {
         // Don't give ids higher than the requested maximum.
@@ -110,7 +110,7 @@ std::vector<int> HairDB::getHairStyleIds(int maxId) const
 std::vector<int> HairDB::getHairColorIds(int maxId) const
 {
     std::vector<int> hairColorsIds;
-    for (ColorConstIterator it = mHairColors.begin(),
+    for (auto it = mHairColors.begin(),
         it_end = mHairColors.end(); it != it_end; ++it)
     {
         // Don't give ids higher than the requested maximum.
diff --git a/src/resources/hairdb.h b/src/resources/hairdb.h
index 502d7c21..48354243 100644
--- a/src/resources/hairdb.h
+++ b/src/resources/hairdb.h
@@ -88,14 +88,14 @@ class HairDB
     void loadHairStylesNode(xmlNodePtr stylesNode);
 
     // Hair colors Db
-    typedef std::map<int, std::string> Colors;
-    typedef Colors::iterator ColorIterator;
-    typedef Colors::const_iterator ColorConstIterator;
+    using Colors = std::map<int, std::string>;
+    using ColorIterator = Colors::iterator;
+    using ColorConstIterator = Colors::const_iterator;
     Colors mHairColors;
 
-    typedef std::set<int> HairStyles;
-    typedef HairStyles::iterator HairStylesIterator;
-    typedef HairStyles::const_iterator HairStylesConstIterator;
+    using HairStyles = std::set<int>;
+    using HairStylesIterator = HairStyles::iterator;
+    using HairStylesConstIterator = HairStyles::const_iterator;
     HairStyles mHairStyles;
 
     bool mLoaded;
diff --git a/src/resources/image.cpp b/src/resources/image.cpp
index 6f2609b0..c05b03aa 100644
--- a/src/resources/image.cpp
+++ b/src/resources/image.cpp
@@ -69,7 +69,7 @@ Image::Image(SDL_Texture *texture, int width, int height):
 #ifdef USE_OPENGL
 Image::Image(GLuint glimage, int width, int height, int texWidth, int texHeight):
     mAlpha(1.0f),
-    mTexture(0),
+    mTexture(nullptr),
     mGLImage(glimage),
     mTexWidth(texWidth),
     mTexHeight(texHeight)
@@ -102,7 +102,7 @@ Resource *Image::load(SDL_RWops *rw)
     if (!tmpImage)
     {
         logger->log("Error, image load failed: %s", IMG_GetError());
-        return NULL;
+        return nullptr;
     }
 
     Image *image = load(tmpImage);
@@ -118,11 +118,11 @@ Resource *Image::load(SDL_RWops *rw, Dye const &dye)
     if (!tmpImage)
     {
         logger->log("Error, image load failed: %s", IMG_GetError());
-        return NULL;
+        return nullptr;
     }
 
     SDL_PixelFormat rgba;
-    rgba.palette = NULL;
+    rgba.palette = nullptr;
     rgba.BitsPerPixel = 32;
     rgba.BytesPerPixel = 4;
     rgba.Rmask = 0xFF000000; rgba.Rloss = 0; rgba.Rshift = 24;
@@ -133,7 +133,7 @@ Resource *Image::load(SDL_RWops *rw, Dye const &dye)
     SDL_Surface *surf = SDL_ConvertSurface(tmpImage, &rgba, 0);
     SDL_FreeSurface(tmpImage);
 
-    Uint32 *pixels = static_cast< Uint32 * >(surf->pixels);
+    auto *pixels = static_cast< Uint32 * >(surf->pixels);
     for (Uint32 *p_end = pixels + surf->w * surf->h; pixels != p_end; ++pixels)
     {
         int alpha = *pixels & 255;
@@ -167,7 +167,7 @@ void Image::unload()
     if (mTexture)
     {
         SDL_DestroyTexture(mTexture);
-        mTexture = NULL;
+        mTexture = nullptr;
     }
 
 #ifdef USE_OPENGL
@@ -210,7 +210,7 @@ void Image::setAlpha(float alpha)
 Image *Image::_SDLload(SDL_Surface *image)
 {
     if (!image || !mRenderer)
-        return NULL;
+        return nullptr;
 
     SDL_Texture *texture = SDL_CreateTextureFromSurface(mRenderer, image);
     return new Image(texture, image->w, image->h);
@@ -269,12 +269,12 @@ Image *Image::_GLload(SDL_Surface *image)
         if (!image)
         {
             logger->log("Error, image convert failed: out of memory");
-            return NULL;
+            return nullptr;
         }
 
         // Make sure the alpha channel is not used, but copied to destination
         SDL_SetSurfaceBlendMode(oldImage, SDL_BLENDMODE_NONE);
-        SDL_BlitSurface(oldImage, NULL, image, NULL);
+        SDL_BlitSurface(oldImage, nullptr, image, nullptr);
     }
 
     GLuint texture;
@@ -325,7 +325,7 @@ Image *Image::_GLload(SDL_Surface *image)
                 break;
         }
         logger->log("Error: Image GL import failed: %s", errmsg.c_str());
-        return NULL;
+        return nullptr;
     }
 
     return new Image(texture, width, height, realWidth, realHeight);
diff --git a/src/resources/image.h b/src/resources/image.h
index efe2262e..66c3ff78 100644
--- a/src/resources/image.h
+++ b/src/resources/image.h
@@ -51,7 +51,7 @@ class Image : public Resource
 #endif
 
     public:
-        virtual ~Image();
+        ~Image() override;
 
         /**
          * Loads an image from an SDL_RWops structure.
@@ -224,7 +224,7 @@ class SubImage : public Image
                  int width, int height, int texWidth, int textHeight);
 #endif
 
-        ~SubImage();
+        ~SubImage() override;
 
     private:
         Image *mParent;
diff --git a/src/resources/imageset.cpp b/src/resources/imageset.cpp
index 9fe75395..74b4034f 100644
--- a/src/resources/imageset.cpp
+++ b/src/resources/imageset.cpp
@@ -53,7 +53,7 @@ Image* ImageSet::get(size_type i) const
     if (i >= mImages.size())
     {
         logger->log("Warning: No sprite %d in this image set", (int) i);
-        return NULL;
+        return nullptr;
     }
     else
     {
diff --git a/src/resources/imageset.h b/src/resources/imageset.h
index 5d9bdc2e..c73e7e37 100644
--- a/src/resources/imageset.h
+++ b/src/resources/imageset.h
@@ -39,7 +39,7 @@ class ImageSet : public Resource
          */
         ImageSet(Image *img, int w, int h, int margin = 0, int spacing = 0);
 
-        ~ImageSet();
+        ~ImageSet() override;
 
         /**
          * Returns the width of the images in the image set.
@@ -51,7 +51,7 @@ class ImageSet : public Resource
          */
         int getHeight() const { return mHeight; }
 
-        typedef std::vector<Image*>::size_type size_type;
+        using size_type = std::vector<Image *>::size_type;
         Image* get(size_type i) const;
 
         size_type size() const { return mImages.size(); }
diff --git a/src/resources/imagewriter.cpp b/src/resources/imagewriter.cpp
index 7257e1b9..ddf1fbee 100644
--- a/src/resources/imagewriter.cpp
+++ b/src/resources/imagewriter.cpp
@@ -39,7 +39,7 @@ bool ImageWriter::writePNG(SDL_Surface *surface, const std::string &filename)
     if (SDL_MUSTLOCK(surface))
         SDL_LockSurface(surface);
 
-    png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, 0, 0, 0);
+    png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, nullptr, nullptr, nullptr);
     if (!png_ptr)
     {
         logger->log("Had trouble creating png_structp");
@@ -49,14 +49,14 @@ bool ImageWriter::writePNG(SDL_Surface *surface, const std::string &filename)
     info_ptr = png_create_info_struct(png_ptr);
     if (!info_ptr)
     {
-        png_destroy_write_struct(&png_ptr, (png_infopp)NULL);
+        png_destroy_write_struct(&png_ptr, (png_infopp)nullptr);
         logger->log("Could not create png_info");
         return false;
     }
 
     if (setjmp(png_jmpbuf(png_ptr)))
     {
-        png_destroy_write_struct(&png_ptr, (png_infopp)NULL);
+        png_destroy_write_struct(&png_ptr, (png_infopp)nullptr);
         logger->log("problem writing to %s", filename.c_str());
         return false;
     }
@@ -100,7 +100,7 @@ bool ImageWriter::writePNG(SDL_Surface *surface, const std::string &filename)
 
     delete [] row_pointers;
 
-    png_destroy_write_struct(&png_ptr, (png_infopp)NULL);
+    png_destroy_write_struct(&png_ptr, (png_infopp)nullptr);
 
     if (SDL_MUSTLOCK(surface))
         SDL_UnlockSurface(surface);
diff --git a/src/resources/itemdb.cpp b/src/resources/itemdb.cpp
index 8c1a8d15..225bdb71 100644
--- a/src/resources/itemdb.cpp
+++ b/src/resources/itemdb.cpp
@@ -180,7 +180,7 @@ void ItemDB::unload()
     logger->log("Unloading item database...");
 
     delete mUnknown;
-    mUnknown = NULL;
+    mUnknown = nullptr;
 
     delete_all(mItemInfos);
     mItemInfos.clear();
@@ -330,7 +330,7 @@ void TaItemDB::init()
 
 void TaItemDB::readItemNode(xmlNodePtr node, const std::string &filename)
 {
-    TaItemInfo *itemInfo = new TaItemInfo;
+    auto *itemInfo = new TaItemInfo;
 
     loadCommonRef(itemInfo, node, filename);
 
@@ -348,7 +348,7 @@ void TaItemDB::readItemNode(xmlNodePtr node, const std::string &filename)
             continue;
         effect.push_back(strprintf(gettext(fields[i][1]), value));
     }
-    for (std::list<ItemStat>::iterator it = extraStats.begin();
+    for (auto it = extraStats.begin();
             it != extraStats.end(); it++)
     {
         int value = XML::getProperty(node, it->mTag.c_str(), 0);
@@ -421,7 +421,7 @@ void ManaServItemDB::init()
 
 void ManaServItemDB::readItemNode(xmlNodePtr node, const std::string &filename)
 {
-    ManaServItemInfo *itemInfo = new ManaServItemInfo;
+    auto *itemInfo = new ManaServItemInfo;
 
     loadCommonRef(itemInfo, node, filename);
 
diff --git a/src/resources/itemdb.h b/src/resources/itemdb.h
index 2f19339d..016e6194 100644
--- a/src/resources/itemdb.h
+++ b/src/resources/itemdb.h
@@ -74,7 +74,7 @@ class ItemDB
 {
     public:
         ItemDB() :
-          mUnknown(0),
+          mUnknown(nullptr),
           mLoaded(false)
         {}
 
@@ -147,8 +147,8 @@ class ItemDB
         void loadFloorSprite(SpriteDisplay *display, xmlNodePtr node);
 
         // Items database
-        typedef std::map<int, ItemInfo*> ItemInfos;
-        typedef std::map<std::string, ItemInfo*> NamedItemInfos;
+        using ItemInfos = std::map<int, ItemInfo *>;
+        using NamedItemInfos = std::map<std::string, ItemInfo *>;
 
         ItemInfos mItemInfos;
         NamedItemInfos mNamedItemInfos;
@@ -167,14 +167,14 @@ class TaItemDB: public ItemDB
         TaItemDB() : ItemDB()
         { }
 
-        ~TaItemDB()
+        ~TaItemDB() override
         { unload(); }
 
-        virtual void init();
+        void init() override;
 
-        virtual void readItemNode(xmlNodePtr node, const std::string &filename);
+        void readItemNode(xmlNodePtr node, const std::string &filename) override;
 
-        virtual void checkStatus();
+        void checkStatus() override;
     private:
         /**
          * Check items id specific hard limits and log errors found.
@@ -183,7 +183,7 @@ class TaItemDB: public ItemDB
         void checkHairWeaponsRacesSpecialIds()
         {}
 
-        void checkItemInfo(ItemInfo* itemInfo);
+        void checkItemInfo(ItemInfo* itemInfo) override;
 };
 
 } // namespace TmwAthena
@@ -201,17 +201,17 @@ class ManaServItemDB: public ItemDB
         ManaServItemDB() : ItemDB()
         { }
 
-        ~ManaServItemDB()
+        ~ManaServItemDB() override
         { unload(); }
 
-        virtual void init();
+        void init() override;
 
-        virtual void readItemNode(xmlNodePtr node, const std::string &filename);
+        void readItemNode(xmlNodePtr node, const std::string &filename) override;
 
-        virtual void checkStatus();
+        void checkStatus() override;
 
     private:
-        void checkItemInfo(ItemInfo* itemInfo);
+        void checkItemInfo(ItemInfo* itemInfo) override;
 };
 
 } // namespace ManaServ
diff --git a/src/resources/iteminfo.cpp b/src/resources/iteminfo.cpp
index 3583bb27..9e7fd6b7 100644
--- a/src/resources/iteminfo.cpp
+++ b/src/resources/iteminfo.cpp
@@ -34,7 +34,7 @@ const std::string &ItemInfo::getSprite(Gender gender) const
     else
     {
         static const std::string empty;
-        std::map<int, std::string>::const_iterator i =
+        auto i =
             mAnimationFiles.find(gender);
 
         return (i != mAnimationFiles.end()) ? i->second : empty;
diff --git a/src/resources/mapreader.cpp b/src/resources/mapreader.cpp
index b2642ae8..af41da12 100644
--- a/src/resources/mapreader.cpp
+++ b/src/resources/mapreader.cpp
@@ -68,7 +68,7 @@ static std::string resolveRelativePath(std::string base, std::string relative)
 Map *MapReader::readMap(const std::string &filename)
 {
     logger->log("Attempting to read map %s", filename.c_str());
-    Map *map = NULL;
+    Map *map = nullptr;
 
     XML::Document doc(filename);
 
@@ -111,7 +111,7 @@ Map *MapReader::readMap(xmlNodePtr node, const std::string &path)
         logger->log("MapReader: Warning: "
                     "Unitialized tile width or height value for map: %s",
                     path.c_str());
-        return 0;
+        return nullptr;
     }
 
     Map *map = new Map(w, h, tilew, tileh);
@@ -237,7 +237,7 @@ static void setTile(Map *map, MapLayer *layer, int x, int y, unsigned gid)
     if (layer)
     {
         // Set regular tile on a layer
-        Image * const img = set ? set->get(gid - set->getFirstGid()) : 0;
+        Image * const img = set ? set->get(gid - set->getFirstGid()) : nullptr;
         layer->setTile(x, y, img);
     }
     else
@@ -261,7 +261,7 @@ void MapReader::readLayer(xmlNodePtr node, Map *map)
     const bool isFringeLayer = (name.substr(0,6) == "fringe");
     const bool isCollisionLayer = (name.substr(0,9) == "collision");
 
-    MapLayer *layer = 0;
+    MapLayer *layer = nullptr;
 
     if (!isCollisionLayer)
     {
@@ -300,7 +300,7 @@ void MapReader::readLayer(xmlNodePtr node, Map *map)
                 continue;
 
             int len = strlen((const char*)dataChild->content) + 1;
-            unsigned char *charData = new unsigned char[len + 1];
+            auto *charData = new unsigned char[len + 1];
             const char *charStart = (const char*) xmlNodeGetContent(dataChild);
             unsigned char *charIndex = charData;
 
@@ -440,8 +440,8 @@ Tileset *MapReader::readTileset(xmlNodePtr node, const std::string &path,
     unsigned firstGid = XML::getProperty(node, "firstgid", 0);
     int margin = XML::getProperty(node, "margin", 0);
     int spacing = XML::getProperty(node, "spacing", 0);
-    XML::Document* doc = NULL;
-    Tileset *set = NULL;
+    XML::Document* doc = nullptr;
+    Tileset *set = nullptr;
     std::string pathDir(path);
 
     if (xmlHasProp(node, BAD_CAST "source"))
@@ -507,7 +507,7 @@ Tileset *MapReader::readTileset(xmlNodePtr node, const std::string &path,
                 // create animation
                 if (!set) continue;
 
-                Animation *ani = new Animation;
+                auto *ani = new Animation;
                 for (int i = 0; ;i++)
                 {
                     std::map<std::string, int>::iterator iFrame, iDelay;
diff --git a/src/resources/monsterdb.cpp b/src/resources/monsterdb.cpp
index 8415b6ae..5fd74c24 100644
--- a/src/resources/monsterdb.cpp
+++ b/src/resources/monsterdb.cpp
@@ -63,7 +63,7 @@ void MonsterDB::init()
  */
 void MonsterDB::readMonsterNode(xmlNodePtr node, const std::string &filename)
 {
-    BeingInfo *currentInfo = new BeingInfo;
+    auto *currentInfo = new BeingInfo;
 
     currentInfo->setWalkMask(Map::BLOCKMASK_WALL
                              | Map::BLOCKMASK_CHARACTER
@@ -171,7 +171,7 @@ void MonsterDB::unload()
 
 BeingInfo *MonsterDB::get(int id)
 {
-    BeingInfoIterator i = mMonsterInfos.find(id);
+    auto i = mMonsterInfos.find(id);
 
     if (i == mMonsterInfos.end())
     {
diff --git a/src/resources/music.cpp b/src/resources/music.cpp
index 73ef2f85..c6760865 100644
--- a/src/resources/music.cpp
+++ b/src/resources/music.cpp
@@ -49,7 +49,7 @@ Resource *Music::load(SDL_RWops *rw)
     }
 #else
     SDL_FreeRW(rw);
-    return 0;
+    return nullptr;
 #endif
 }
 
diff --git a/src/resources/music.h b/src/resources/music.h
index d370f0a5..0c445b2b 100644
--- a/src/resources/music.h
+++ b/src/resources/music.h
@@ -32,7 +32,7 @@
 class Music : public Resource
 {
     public:
-        virtual ~Music();
+        ~Music() override;
 
         /**
          * Loads a music from a buffer in memory.
diff --git a/src/resources/npcdb.cpp b/src/resources/npcdb.cpp
index 7d0f72b0..fa12eced 100644
--- a/src/resources/npcdb.cpp
+++ b/src/resources/npcdb.cpp
@@ -52,7 +52,7 @@ void NPCDB::readNPCNode(xmlNodePtr node, const std::string &filename)
         return;
     }
 
-    BeingInfo *currentInfo = new BeingInfo;
+    auto *currentInfo = new BeingInfo;
 
     currentInfo->setTargetCursorSize(XML::getProperty(node,
                                      "targetCursor", "medium"));
@@ -94,7 +94,7 @@ void NPCDB::unload()
 
 BeingInfo *NPCDB::get(int id)
 {
-    BeingInfoIterator i = mNPCInfos.find(id);
+    auto i = mNPCInfos.find(id);
 
     if (i == mNPCInfos.end())
     {
diff --git a/src/resources/resourcemanager.cpp b/src/resources/resourcemanager.cpp
index a9e7e565..46e1ab30 100644
--- a/src/resources/resourcemanager.cpp
+++ b/src/resources/resourcemanager.cpp
@@ -43,7 +43,7 @@
 
 #include <sys/time.h>
 
-ResourceManager *ResourceManager::instance = NULL;
+ResourceManager *ResourceManager::instance = nullptr;
 
 ResourceManager::ResourceManager()
   : mOldestOrphan(0)
@@ -56,13 +56,13 @@ ResourceManager::~ResourceManager()
     mResources.insert(mOrphanedResources.begin(), mOrphanedResources.end());
 
     // Release any remaining spritedefs first because they depend on image sets
-    ResourceIterator iter = mResources.begin();
+    auto iter = mResources.begin();
     while (iter != mResources.end())
     {
-        if (dynamic_cast<SpriteDef*>(iter->second) != 0)
+        if (dynamic_cast<SpriteDef*>(iter->second) != nullptr)
         {
             cleanUp(iter->second);
-            ResourceIterator toErase = iter;
+            auto toErase = iter;
             ++iter;
             mResources.erase(toErase);
         }
@@ -76,10 +76,10 @@ ResourceManager::~ResourceManager()
     iter = mResources.begin();
     while (iter != mResources.end())
     {
-        if (dynamic_cast<ImageSet*>(iter->second) != 0)
+        if (dynamic_cast<ImageSet*>(iter->second) != nullptr)
         {
             cleanUp(iter->second);
-            ResourceIterator toErase = iter;
+            auto toErase = iter;
             ++iter;
             mResources.erase(toErase);
         }
@@ -115,7 +115,7 @@ void ResourceManager::cleanUp(Resource *res)
 void ResourceManager::cleanOrphans()
 {
     timeval tv;
-    gettimeofday(&tv, NULL);
+    gettimeofday(&tv, nullptr);
     // Delete orphaned resources after 30 seconds.
     time_t oldest = tv.tv_sec;
     time_t threshold = oldest - 30;
@@ -123,7 +123,7 @@ void ResourceManager::cleanOrphans()
     if (mOrphanedResources.empty() || mOldestOrphan >= threshold)
         return;
 
-    ResourceIterator iter = mOrphanedResources.begin();
+    auto iter = mOrphanedResources.begin();
     while (iter != mOrphanedResources.end())
     {
         Resource *res = iter->second;
@@ -137,7 +137,7 @@ void ResourceManager::cleanOrphans()
         else
         {
             logger->log("ResourceManager::release(%s)", res->mIdPath.c_str());
-            ResourceIterator toErase = iter;
+            auto toErase = iter;
             ++iter;
             mOrphanedResources.erase(toErase);
             delete res; // delete only after removal from list, to avoid issues in recursion
@@ -239,20 +239,20 @@ bool ResourceManager::addResource(const std::string &idPath,
 
 Resource *ResourceManager::get(const std::string &idPath)
 {
-    ResourceIterator resIter = mResources.find(idPath);
+    auto resIter = mResources.find(idPath);
     if (resIter != mResources.end())
     {
         resIter->second->incRef();
         return resIter->second;
     }
-    return 0;
+    return nullptr;
 }
 
 Resource *ResourceManager::get(const std::string &idPath, generator fun,
                                void *data)
 {
     // Check if the id exists, and return the value if it does.
-    ResourceIterator resIter = mResources.find(idPath);
+    auto resIter = mResources.find(idPath);
     if (resIter != mResources.end())
     {
         resIter->second->incRef();
@@ -291,10 +291,10 @@ struct ResourceLoader
 
     static Resource *load(void *v)
     {
-        ResourceLoader *l = static_cast< ResourceLoader * >(v);
+        auto *l = static_cast< ResourceLoader * >(v);
         SDL_RWops *rw = PHYSFSRWOPS_openRead(l->path.c_str());
         if (!rw)
-            return NULL;
+            return nullptr;
         Resource *res = l->fun(rw);
         return res;
     }
@@ -322,10 +322,10 @@ struct DyedImageLoader
     std::string path;
     static Resource *load(void *v)
     {
-        DyedImageLoader *l = static_cast< DyedImageLoader * >(v);
+        auto *l = static_cast< DyedImageLoader * >(v);
         std::string path = l->path;
         std::string::size_type p = path.find('|');
-        Dye *d = NULL;
+        Dye *d = nullptr;
         if (p != std::string::npos)
         {
             d = new Dye(path.substr(p + 1));
@@ -335,7 +335,7 @@ struct DyedImageLoader
         if (!rw)
         {
             delete d;
-            return NULL;
+            return nullptr;
         }
         Resource *res = d ? Image::load(rw, *d)
                           : Image::load(rw);
@@ -357,10 +357,10 @@ struct ImageSetLoader
     int w, h;
     static Resource *load(void *v)
     {
-        ImageSetLoader *l = static_cast< ImageSetLoader * >(v);
+        auto *l = static_cast< ImageSetLoader * >(v);
         Image *img = l->manager->getImage(l->path);
-        if (!img) return NULL;
-        ImageSet *res = new ImageSet(img, l->w, l->h);
+        if (!img) return nullptr;
+        auto *res = new ImageSet(img, l->w, l->h);
         img->decRef();
         return res;
     }
@@ -381,7 +381,7 @@ struct SpriteDefLoader
     int variant;
     static Resource *load(void *v)
     {
-        SpriteDefLoader *l = static_cast< SpriteDefLoader * >(v);
+        auto *l = static_cast< SpriteDefLoader * >(v);
         return SpriteDef::load(l->path, l->variant);
     }
 };
@@ -396,13 +396,13 @@ SpriteDef *ResourceManager::getSprite(const std::string &path, int variant)
 
 void ResourceManager::release(Resource *res)
 {
-    ResourceIterator resIter = mResources.find(res->mIdPath);
+    auto resIter = mResources.find(res->mIdPath);
 
     // The resource has to exist
     assert(resIter != mResources.end() && resIter->second == res);
 
     timeval tv;
-    gettimeofday(&tv, NULL);
+    gettimeofday(&tv, nullptr);
     time_t timestamp = tv.tv_sec;
 
     res->mTimeStamp = timestamp;
@@ -429,7 +429,7 @@ ResourceManager *ResourceManager::getInstance()
 void ResourceManager::deleteInstance()
 {
     delete instance;
-    instance = NULL;
+    instance = nullptr;
 }
 
 void *ResourceManager::loadFile(const std::string &filename, int &filesize,
@@ -439,11 +439,11 @@ void *ResourceManager::loadFile(const std::string &filename, int &filesize,
     PHYSFS_file *file = PHYSFS_openRead(filename.c_str());
 
     // If the handler is an invalid pointer indicate failure
-    if (file == NULL)
+    if (file == nullptr)
     {
         logger->log("Warning: Failed to load %s: %s",
                 filename.c_str(), PHYSFS_getLastError());
-        return NULL;
+        return nullptr;
     }
 
     // Log the real dir of the file
@@ -471,11 +471,11 @@ void *ResourceManager::loadFile(const std::string &filename, int &filesize,
             inflateMemory((unsigned char*) buffer, filesize, inflated);
         free(buffer);
 
-        if (inflated == NULL)
+        if (inflated == nullptr)
         {
             logger->log("Could not decompress file: %s",
                         filename.c_str());
-            return NULL;
+            return nullptr;
         }
 
         filesize = inflatedSize;
@@ -539,7 +539,7 @@ std::vector<std::string> ResourceManager::loadTextFile(
 
 SDL_Surface *ResourceManager::loadSDLSurface(const std::string &filename)
 {
-    SDL_Surface *surface = 0;
+    SDL_Surface *surface = nullptr;
     if (SDL_RWops *rw = PHYSFSRWOPS_openRead(filename.c_str()))
         surface = IMG_Load_RW(rw, 1);
     return surface;
@@ -552,7 +552,7 @@ void ResourceManager::scheduleDelete(SDL_Surface* surface)
 
 void ResourceManager::clearScheduled()
 {
-    for (std::set<SDL_Surface*>::iterator i = mDeletedSurfaces.begin(),
+    for (auto i = mDeletedSurfaces.begin(),
          i_end = mDeletedSurfaces.end(); i != i_end; ++i)
     {
         SDL_FreeSurface(*i);
diff --git a/src/resources/resourcemanager.h b/src/resources/resourcemanager.h
index 5abc81e2..a087082d 100644
--- a/src/resources/resourcemanager.h
+++ b/src/resources/resourcemanager.h
@@ -47,8 +47,8 @@ class ResourceManager
 
     public:
 
-        typedef Resource *(*loader)(SDL_RWops *);
-        typedef Resource *(*generator)(void *);
+        using loader = Resource *(*)(SDL_RWops *);
+        using generator = Resource *(*)(void *);
 
         ResourceManager();
 
@@ -249,8 +249,8 @@ class ResourceManager
         void cleanOrphans();
 
         static ResourceManager *instance;
-        typedef std::map<std::string, Resource*> Resources;
-        typedef Resources::iterator ResourceIterator;
+        using Resources = std::map<std::string, Resource *>;
+        using ResourceIterator = Resources::iterator;
         std::set<SDL_Surface*> mDeletedSurfaces;
         Resources mResources;
         Resources mOrphanedResources;
diff --git a/src/resources/soundeffect.cpp b/src/resources/soundeffect.cpp
index d1b0227b..782d79d1 100644
--- a/src/resources/soundeffect.cpp
+++ b/src/resources/soundeffect.cpp
@@ -40,7 +40,7 @@ Resource *SoundEffect::load(SDL_RWops *rw)
     else
     {
         logger->log("Error, failed to load sound effect: %s", Mix_GetError());
-        return NULL;
+        return nullptr;
     }
 }
 
diff --git a/src/resources/soundeffect.h b/src/resources/soundeffect.h
index 38d58681..eada80b5 100644
--- a/src/resources/soundeffect.h
+++ b/src/resources/soundeffect.h
@@ -32,7 +32,7 @@
 class SoundEffect : public Resource
 {
     public:
-        virtual ~SoundEffect();
+        ~SoundEffect() override;
 
         /**
          * Loads a sample from a buffer in memory.
diff --git a/src/resources/specialdb.cpp b/src/resources/specialdb.cpp
index 6601b586..b72c059f 100644
--- a/src/resources/specialdb.cpp
+++ b/src/resources/specialdb.cpp
@@ -55,7 +55,7 @@ void SpecialDB::readSpecialSetNode(xmlNodePtr node, const std::string &filename)
     {
         if (xmlStrEqual(special->name, BAD_CAST "special"))
         {
-            SpecialInfo *info = new SpecialInfo();
+            auto *info = new SpecialInfo();
             int id = XML::getProperty(special, "id", 0);
             info->id = id;
             info->set = setName;
@@ -98,16 +98,16 @@ void SpecialDB::unload()
 SpecialInfo *SpecialDB::get(int id)
 {
 
-    SpecialInfos::iterator i = mSpecialInfos.find(id);
+    auto i = mSpecialInfos.find(id);
 
     if (i == mSpecialInfos.end())
     {
-        return NULL;
+        return nullptr;
     }
     else
     {
         return i->second;
     }
-    return NULL;
+    return nullptr;
 }
 
diff --git a/src/resources/specialdb.h b/src/resources/specialdb.h
index f6987b71..71aae0ba 100644
--- a/src/resources/specialdb.h
+++ b/src/resources/specialdb.h
@@ -65,6 +65,6 @@ namespace SpecialDB
     SpecialInfo::TargetMode targetModeFromString(const std::string& str);
 }
 
-typedef std::map<int, SpecialInfo *> SpecialInfos;
+using SpecialInfos = std::map<int, SpecialInfo *>;
 
 #endif
diff --git a/src/resources/spritedef.cpp b/src/resources/spritedef.cpp
index 7ccf1ff6..f33ade55 100644
--- a/src/resources/spritedef.cpp
+++ b/src/resources/spritedef.cpp
@@ -41,12 +41,12 @@ std::set<std::string> processedFiles;
 
 Action *SpriteDef::getAction(const std::string &action) const
 {
-    Actions::const_iterator i = mActions.find(action);
+    auto i = mActions.find(action);
 
     if (i == mActions.end())
     {
         logger->log("Warning: no action \"%s\" defined!", action.c_str());
-        return NULL;
+        return nullptr;
     }
 
     return i->second;
@@ -77,11 +77,11 @@ SpriteDef *SpriteDef::load(const std::string &animationFile, int variant)
         }
         else
         {
-            return NULL;
+            return nullptr;
         }
     }
 
-    SpriteDef *def = new SpriteDef;
+    auto *def = new SpriteDef;
     def->loadSprite(rootNode, variant, palettes);
     def->substituteActions();
     return def;
@@ -91,7 +91,7 @@ void SpriteDef::substituteAction(std::string complete, std::string with)
 {
     if (mActions.find(complete) == mActions.end())
     {
-        Actions::iterator i = mActions.find(with);
+        auto i = mActions.find(with);
         if (i != mActions.end())
         {
             mActions[complete] = i->second;
@@ -175,7 +175,7 @@ void SpriteDef::loadAction(xmlNodePtr node, int variant_offset)
     const std::string actionName = XML::getProperty(node, "name", "");
     const std::string imageSetName = XML::getProperty(node, "imageset", "");
 
-    ImageSetIterator si = mImageSets.find(imageSetName);
+    auto si = mImageSets.find(imageSetName);
     if (si == mImageSets.end())
     {
         logger->log("Warning: imageset \"%s\" not defined in %s",
@@ -190,7 +190,7 @@ void SpriteDef::loadAction(xmlNodePtr node, int variant_offset)
                 actionName.c_str(), getIdPath().c_str());
         return;
     }
-    Action *action = new Action;
+    auto *action = new Action;
     mActions[actionName] = action;
 
     // When first action set it as default direction
@@ -224,7 +224,7 @@ void SpriteDef::loadAnimation(xmlNodePtr animationNode,
         return;
     }
 
-    Animation *animation = new Animation;
+    auto *animation = new Animation;
     action->setAnimation(directionType, animation);
 
     // Get animation frames
@@ -327,13 +327,13 @@ SpriteDef::~SpriteDef()
         actions.insert(i->second);
     }
 
-    for (std::set< Action * >::const_iterator i = actions.begin(),
+    for (auto i = actions.begin(),
          i_end = actions.end(); i != i_end; ++i)
     {
         delete *i;
     }
 
-    for (ImageSetIterator i = mImageSets.begin();
+    for (auto i = mImageSets.begin();
             i != mImageSets.end(); ++i)
     {
         i->second->decRef();
diff --git a/src/resources/spritedef.h b/src/resources/spritedef.h
index 5ece1308..b044e7b6 100644
--- a/src/resources/spritedef.h
+++ b/src/resources/spritedef.h
@@ -53,7 +53,7 @@ struct SpriteDisplay
     std::list<std::string> particles;
 };
 
-typedef std::list<SpriteReference>::const_iterator SpriteRefs;
+using SpriteRefs = std::list<SpriteReference>::const_iterator;
 
 /*
  * Remember those are the main action.
@@ -115,7 +115,7 @@ class SpriteDef : public Resource
     private:
         SpriteDef() {}
 
-        ~SpriteDef();
+        ~SpriteDef() override;
 
         /**
          * Loads a sprite element.
@@ -156,10 +156,10 @@ class SpriteDef : public Resource
          */
         void substituteAction(std::string complete, std::string with);
 
-        typedef std::map<std::string, ImageSet*> ImageSets;
-        typedef ImageSets::iterator ImageSetIterator;
+        using ImageSets = std::map<std::string, ImageSet *>;
+        using ImageSetIterator = ImageSets::iterator;
 
-        typedef std::map<std::string, Action*> Actions;
+        using Actions = std::map<std::string, Action *>;
 
         ImageSets mImageSets;
         Actions mActions;
diff --git a/src/resources/theme.cpp b/src/resources/theme.cpp
index 1490dbf5..c44b7401 100644
--- a/src/resources/theme.cpp
+++ b/src/resources/theme.cpp
@@ -42,7 +42,7 @@
 
 static std::string defaultThemePath;
 std::string Theme::mThemePath;
-Theme *Theme::mInstance = 0;
+Theme *Theme::mInstance = nullptr;
 
 // Set the theme path...
 static void initDefaultThemePath()
@@ -144,7 +144,7 @@ Theme *Theme::instance()
 void Theme::deleteInstance()
 {
     delete mInstance;
-    mInstance = 0;
+    mInstance = nullptr;
 }
 
 gcn::Color Theme::getProgressColor(int type, float progress)
@@ -160,7 +160,7 @@ gcn::Color Theme::getProgressColor(int type, float progress)
 Skin *Theme::load(const std::string &filename, const std::string &defaultPath)
 {
     // Check if this skin was already loaded
-    SkinIterator skinIterator = mSkins.find(filename);
+    auto skinIterator = mSkins.find(filename);
     if (mSkins.end() != skinIterator)
     {
         skinIterator->second->instances++;
@@ -204,7 +204,7 @@ void Theme::setMinimumOpacity(float minimumOpacity)
 
 void Theme::updateAlpha()
 {
-    for (SkinIterator iter = mSkins.begin(); iter != mSkins.end(); ++iter)
+    for (auto iter = mSkins.begin(); iter != mSkins.end(); ++iter)
         iter->second->updateAlpha(mMinimumOpacity);
 }
 
@@ -221,7 +221,7 @@ void Theme::event(Event::Channel channel, const Event &event)
 Skin *Theme::readSkin(const std::string &filename)
 {
     if (filename.empty())
-        return 0;
+        return nullptr;
 
     logger->log("Loading skin '%s'.", filename.c_str());
 
@@ -229,14 +229,14 @@ Skin *Theme::readSkin(const std::string &filename)
     xmlNodePtr rootNode = doc.rootNode();
 
     if (!rootNode || !xmlStrEqual(rootNode->name, BAD_CAST "skinset"))
-        return 0;
+        return nullptr;
 
     const std::string skinSetImage = XML::getProperty(rootNode, "image", "");
 
     if (skinSetImage.empty())
     {
         logger->log("Theme::readSkin(): Skinset does not define an image!");
-        return 0;
+        return nullptr;
     }
 
     logger->log("Theme::load(): <skinset> defines '%s' as a skin image.",
diff --git a/src/resources/theme.h b/src/resources/theme.h
index b2dd10de..9e7c4c3e 100644
--- a/src/resources/theme.h
+++ b/src/resources/theme.h
@@ -218,17 +218,17 @@ class Theme : public Palette, public EventListener
          */
         void setMinimumOpacity(float minimumOpacity);
 
-        void event(Event::Channel channel, const Event &event);
+        void event(Event::Channel channel, const Event &event) override;
 
     private:
         Theme();
-        ~Theme();
+        ~Theme() override;
 
         Skin *readSkin(const std::string &filename);
 
         // Map containing all window skins
-        typedef std::map<std::string, Skin*> Skins;
-        typedef Skins::iterator SkinIterator;
+        using Skins = std::map<std::string, Skin *>;
+        using SkinIterator = Skins::iterator;
 
         Skins mSkins;
 
@@ -245,7 +245,7 @@ class Theme : public Palette, public EventListener
          */
         float mMinimumOpacity;
 
-        typedef std::vector<DyePalette*> ProgressColors;
+        using ProgressColors = std::vector<DyePalette *>;
         ProgressColors mProgressColors;
 };
 
diff --git a/src/resources/userpalette.cpp b/src/resources/userpalette.cpp
index 073f5b03..8bc681b3 100644
--- a/src/resources/userpalette.cpp
+++ b/src/resources/userpalette.cpp
@@ -115,7 +115,7 @@ UserPalette::UserPalette():
 
 UserPalette::~UserPalette()
 {
-    for (Colors::iterator col = mColors.begin(),
+    for (auto col = mColors.begin(),
          colEnd = mColors.end(); col != colEnd; ++col)
     {
         const std::string &configName = ColorTypeNames[col->type];
@@ -176,7 +176,7 @@ std::string UserPalette::getElementAt(int i)
 
 void UserPalette::commit(bool commitNonStatic)
 {
-    for (Colors::iterator i = mColors.begin(), iEnd = mColors.end();
+    for (auto i = mColors.begin(), iEnd = mColors.end();
          i != iEnd; ++i)
     {
         i->committedGrad = i->grad;
@@ -194,7 +194,7 @@ void UserPalette::commit(bool commitNonStatic)
 
 void UserPalette::rollback()
 {
-    for (Colors::iterator i = mColors.begin(), iEnd = mColors.end();
+    for (auto i = mColors.begin(), iEnd = mColors.end();
          i != iEnd; ++i)
     {
         if (i->grad != i->committedGrad)
diff --git a/src/resources/userpalette.h b/src/resources/userpalette.h
index fa295f40..93056867 100644
--- a/src/resources/userpalette.h
+++ b/src/resources/userpalette.h
@@ -58,7 +58,7 @@ class UserPalette : public Palette, public gcn::ListModel
 
         UserPalette();
 
-        ~UserPalette();
+        ~UserPalette() override;
 
         /**
          * Gets the committed color associated with the specified type.
@@ -123,7 +123,7 @@ class UserPalette : public Palette, public gcn::ListModel
          *
          * @return the number of colors known
          */
-        int getNumberOfElements() { return mColors.size(); }
+        int getNumberOfElements() override { return mColors.size(); }
 
         /**
          * Returns the name of the ith color.
@@ -132,7 +132,7 @@ class UserPalette : public Palette, public gcn::ListModel
          *
          * @return the name of the color
          */
-        std::string getElementAt(int i);
+        std::string getElementAt(int i) override;
 
         /**
          * Commit the colors
diff --git a/src/rotationalparticle.cpp b/src/rotationalparticle.cpp
index e45ffb9d..f06172a5 100644
--- a/src/rotationalparticle.cpp
+++ b/src/rotationalparticle.cpp
@@ -26,14 +26,14 @@
 #define PI 3.14159265
 
 RotationalParticle::RotationalParticle(Map *map, Animation *animation):
-    ImageParticle(map, NULL),
+    ImageParticle(map, nullptr),
     mAnimation(new SimpleAnimation(animation))
 {
 }
 
 RotationalParticle::RotationalParticle(Map *map, xmlNodePtr animationNode,
                                        const std::string& dyePalettes):
-    ImageParticle(map, 0),
+    ImageParticle(map, nullptr),
     mAnimation(new SimpleAnimation(animationNode, dyePalettes))
 {
 }
@@ -41,7 +41,7 @@ RotationalParticle::RotationalParticle(Map *map, xmlNodePtr animationNode,
 RotationalParticle::~RotationalParticle()
 {
     delete mAnimation;
-    mImage = NULL;
+    mImage = nullptr;
 }
 
 bool RotationalParticle::update()
diff --git a/src/rotationalparticle.h b/src/rotationalparticle.h
index 34471666..465be989 100644
--- a/src/rotationalparticle.h
+++ b/src/rotationalparticle.h
@@ -38,9 +38,9 @@ class RotationalParticle : public ImageParticle
         RotationalParticle(Map *map, xmlNodePtr animationNode,
                            const std::string& dyePalettes = std::string());
 
-        ~RotationalParticle();
+        ~RotationalParticle() override;
 
-        virtual bool update();
+        bool update() override;
 
     private:
         SimpleAnimation *mAnimation; /**< Used animation for this particle */
diff --git a/src/shopitem.cpp b/src/shopitem.cpp
index ad9990a2..6eb52d18 100644
--- a/src/shopitem.cpp
+++ b/src/shopitem.cpp
@@ -56,7 +56,7 @@ ShopItem::~ShopItem()
 
 void ShopItem::addDuplicate(int inventoryIndex, int quantity)
 {
-    DuplicateItem* di = new DuplicateItem;
+    auto* di = new DuplicateItem;
     di->inventoryIndex = inventoryIndex;
     di->quantity = quantity;
     mDuplicates.push(di);
@@ -65,7 +65,7 @@ void ShopItem::addDuplicate(int inventoryIndex, int quantity)
 
 void ShopItem::addDuplicate()
 {
-    DuplicateItem* di = new DuplicateItem;
+    auto* di = new DuplicateItem;
     di->inventoryIndex = -1;
     di->quantity = 0;
     mDuplicates.push(di);
diff --git a/src/shopitem.h b/src/shopitem.h
index 74521789..996e04ec 100644
--- a/src/shopitem.h
+++ b/src/shopitem.h
@@ -52,7 +52,7 @@ class ShopItem : public Item
          */
         ShopItem(int id, int price);
 
-        ~ShopItem();
+        ~ShopItem() override;
 
         /**
          * Add a duplicate. Id and price will be taken from this item.
@@ -126,10 +126,10 @@ class ShopItem : public Item
         /**
          * Struct to keep track of duplicates.
          */
-        typedef struct {
+        using DuplicateItem = struct {
             int inventoryIndex;
             int quantity;
-        } DuplicateItem;
+        };
         std::stack<DuplicateItem*> mDuplicates; /** <-- Stores duplicates */
 };
 
diff --git a/src/simpleanimation.cpp b/src/simpleanimation.cpp
index d6bc5bd8..5ab7cf63 100644
--- a/src/simpleanimation.cpp
+++ b/src/simpleanimation.cpp
@@ -115,7 +115,7 @@ Image *SimpleAnimation::getCurrentImage() const
     if (mCurrentFrame)
         return mCurrentFrame->image;
     else
-        return NULL;
+        return nullptr;
 }
 
 void SimpleAnimation::initializeAnimation(xmlNodePtr animationNode,
diff --git a/src/sound.cpp b/src/sound.cpp
index 44f55cba..60cc2c10 100644
--- a/src/sound.cpp
+++ b/src/sound.cpp
@@ -54,7 +54,7 @@ Sound::Sound():
     mSfxVolume(100),
     mNotificationsVolume(100),
     mMusicVolume(60),
-    mMusic(NULL)
+    mMusic(nullptr)
 {
     // This set up our callback function used to
     // handle fade outs endings.
@@ -65,7 +65,7 @@ Sound::Sound():
 Sound::~Sound()
 {
     // Unlink the callback function.
-    Mix_HookMusicFinished(NULL);
+    Mix_HookMusicFinished(nullptr);
 }
 
 void Sound::init()
@@ -252,7 +252,7 @@ void Sound::logic()
         if (mMusic)
         {
             mMusic->decRef();
-            mMusic = 0;
+            mMusic = nullptr;
         }
         sFadingOutEnded = false;
 
@@ -327,5 +327,5 @@ void Sound::haltMusic()
 
     Mix_HaltMusic();
     mMusic->decRef();
-    mMusic = 0;
+    mMusic = nullptr;
 }
diff --git a/src/statuseffect.cpp b/src/statuseffect.cpp
index bdaaf566..42b48783 100644
--- a/src/statuseffect.cpp
+++ b/src/statuseffect.cpp
@@ -55,7 +55,7 @@ void StatusEffect::deliverMessage()
 Particle *StatusEffect::getParticle()
 {
     if (mParticleEffect.empty())
-        return NULL;
+        return nullptr;
     else
         return particleEngine->addEffect(mParticleEffect, 0, 0);
 }
@@ -63,7 +63,7 @@ Particle *StatusEffect::getParticle()
 AnimatedSprite *StatusEffect::getIcon()
 {
     if (mIcon.empty())
-        return NULL;
+        return nullptr;
     else
     {
         AnimatedSprite *sprite = AnimatedSprite::load(
@@ -120,7 +120,7 @@ void StatusEffect::init()
 
 void StatusEffect::readStatusEffectNode(xmlNodePtr node, const std::string &filename)
 {
-    status_effect_map *the_map = NULL;
+    status_effect_map *the_map = nullptr;
     int index = atoi(XML::getProperty(node, "id", "-1").c_str());
     if (xmlStrEqual(node->name, BAD_CAST "status-effect"))
     {
@@ -135,8 +135,8 @@ void StatusEffect::readStatusEffectNode(xmlNodePtr node, const std::string &file
 
     if (the_map)
     {
-        StatusEffect *startEffect = new StatusEffect;
-        StatusEffect *endEffect = new StatusEffect;
+        auto *startEffect = new StatusEffect;
+        auto *endEffect = new StatusEffect;
 
         startEffect->mMessage = XML::getProperty(node, "start-message", "");
         startEffect->mSFXEffect = XML::getProperty(node, "start-audio", "");
diff --git a/src/text.cpp b/src/text.cpp
index 0b619836..14ae747b 100644
--- a/src/text.cpp
+++ b/src/text.cpp
@@ -50,7 +50,7 @@ Text::Text(const std::string &text, int x, int y,
     else
         mFont = font;
 
-    if (textManager == 0)
+    if (textManager == nullptr)
     {
         textManager = new TextManager;
         Image *sbImage = Theme::getImageFromTheme("bubble.png|W:#"
@@ -100,7 +100,7 @@ Text::~Text()
     if (--mInstances == 0)
     {
         delete textManager;
-        textManager = 0;
+        textManager = nullptr;
         delete mBubble.grid[0];
         delete mBubble.grid[1];
         delete mBubble.grid[2];
diff --git a/src/text.h b/src/text.h
index 9b215259..3e6c7913 100644
--- a/src/text.h
+++ b/src/text.h
@@ -40,7 +40,7 @@ class Text
         Text(const std::string &text, int x, int y,
              gcn::Graphics::Alignment alignment,
              const gcn::Color *color, bool isSpeech = false,
-             gcn::Font *font = 0);
+             gcn::Font *font = nullptr);
 
         /**
          * Destructor. The text is removed from the screen.
@@ -85,12 +85,12 @@ class FlashText : public Text
         FlashText(const std::string &text, int x, int y,
                   gcn::Graphics::Alignment alignment,
                   const gcn::Color* color,
-                  gcn::Font *font = 0);
+                  gcn::Font *font = nullptr);
 
         /**
          * Remove the text from the screen
          */
-        virtual ~FlashText() {}
+        ~FlashText() override {}
 
         /**
          * Flash the text for so many refreshes.
@@ -100,7 +100,7 @@ class FlashText : public Text
         /**
          * Draws the text.
          */
-        virtual void draw(gcn::Graphics *graphics, int xOff, int yOff);
+        void draw(gcn::Graphics *graphics, int xOff, int yOff) override;
 
     private:
         int mTime;             /**< Time left for flashing */
diff --git a/src/textmanager.cpp b/src/textmanager.cpp
index 00bdd49c..5f87bd29 100644
--- a/src/textmanager.cpp
+++ b/src/textmanager.cpp
@@ -25,7 +25,7 @@
 
 #include <cstring>
 
-TextManager *textManager = 0;
+TextManager *textManager = nullptr;
 
 TextManager::TextManager()
 {
@@ -33,7 +33,7 @@ TextManager::TextManager()
 
 void TextManager::addText(Text *text)
 {
-    place(text, 0, text->mX, text->mY, text->mHeight);
+    place(text, nullptr, text->mX, text->mY, text->mHeight);
     mTextList.push_back(text);
 }
 
@@ -46,7 +46,7 @@ void TextManager::moveText(Text *text, int x, int y)
 
 void TextManager::removeText(const Text *text)
 {
-    for (TextList::iterator ptr = mTextList.begin(),
+    for (auto ptr = mTextList.begin(),
              pEnd = mTextList.end(); ptr != pEnd; ++ptr)
     {
         if (*ptr == text)
@@ -63,7 +63,7 @@ TextManager::~TextManager()
 
 void TextManager::draw(gcn::Graphics *graphics, int xOff, int yOff)
 {
-    for (TextList::iterator bPtr = mTextList.begin(), ePtr = mTextList.end();
+    for (auto bPtr = mTextList.begin(), ePtr = mTextList.end();
          bPtr != ePtr; ++bPtr)
     {
         (*bPtr)->draw(graphics, xOff, yOff);
diff --git a/src/textmanager.h b/src/textmanager.h
index 74428108..9043e583 100644
--- a/src/textmanager.h
+++ b/src/textmanager.h
@@ -65,7 +65,7 @@ class TextManager
         void place(const Text *textObj, const Text *omit,
         int &x, int &y, int h);
 
-        typedef std::list<Text *> TextList; /**< The container type */
+        using TextList = std::list<Text *>; /**< The container type */
         TextList mTextList; /**< The container */
 };
 
diff --git a/src/textparticle.h b/src/textparticle.h
index ef79314d..d70cc5b9 100644
--- a/src/textparticle.h
+++ b/src/textparticle.h
@@ -34,17 +34,17 @@ class TextParticle : public Particle
         /**
          * Draws the particle image.
          */
-        virtual bool draw(Graphics *graphics, int offsetX, int offsetY) const;
+        bool draw(Graphics *graphics, int offsetX, int offsetY) const override;
 
         // hack to improve text visibility
-        virtual int getDrawOrder() const
+        int getDrawOrder() const override
         { return (int) (mPos.y) + 32; }
 
         /** In contrary to other particles, text particles should not be
          *  obscured by objects, because their information is too
          *  important.
          */
-        virtual bool drawnWhenBehind() const
+        bool drawnWhenBehind() const override
         { return true; }
 
     private:
diff --git a/src/utils/base64.cpp b/src/utils/base64.cpp
index 57a9fc84..cf10c8fd 100644
--- a/src/utils/base64.cpp
+++ b/src/utils/base64.cpp
@@ -46,7 +46,7 @@ unsigned char *php3_base64_encode(const unsigned char *string, int length, int *
 {
     const unsigned char *current = string;
     int i = 0;
-    unsigned char *result = (unsigned char *)malloc(((length + 3 - length % 3) * 4 / 3 + 1) * sizeof(char));
+    auto *result = (unsigned char *)malloc(((length + 3 - length % 3) * 4 / 3 + 1) * sizeof(char));
 
     while (length > 2)
     { /* keep going until we have less than 24 bits */
@@ -91,11 +91,11 @@ unsigned char *php3_base64_decode(const unsigned char *string, int length, int *
     int ch, i = 0, j = 0, k;
     char *chp;
 
-    unsigned char *result = (unsigned char *)malloc(length + 1);
+    auto *result = (unsigned char *)malloc(length + 1);
 
-    if (result == NULL)
+    if (result == nullptr)
     {
-        return NULL;
+        return nullptr;
     }
 
     /* run through the whole string, converting as we go */
@@ -113,7 +113,7 @@ unsigned char *php3_base64_decode(const unsigned char *string, int length, int *
         if (ch == ' ') ch = '+';
 
         chp = strchr(base64_table, ch);
-        if (chp == NULL) continue;
+        if (chp == nullptr) continue;
         ch = chp - base64_table;
 
         switch(i % 4)
@@ -145,7 +145,7 @@ unsigned char *php3_base64_decode(const unsigned char *string, int length, int *
             case 0:
             case 1:
                 free(result);
-                return NULL;
+                return nullptr;
             case 2:
                 k++;
             case 3:
diff --git a/src/utils/mutex.h b/src/utils/mutex.h
index d0120cfa..ad95b17b 100644
--- a/src/utils/mutex.h
+++ b/src/utils/mutex.h
@@ -96,7 +96,7 @@ inline MutexLocker::MutexLocker(Mutex *mutex):
 inline MutexLocker::MutexLocker(MutexLocker&& rhs):
     mMutex(rhs.mMutex)
 {
-    rhs.mMutex = NULL;
+    rhs.mMutex = nullptr;
 }
 
 inline MutexLocker::~MutexLocker()
diff --git a/src/utils/sha256.cpp b/src/utils/sha256.cpp
index 761f4edb..a97dce3c 100644
--- a/src/utils/sha256.cpp
+++ b/src/utils/sha256.cpp
@@ -78,8 +78,8 @@
 #ifdef HAVE_STDINT_H
 #include <stdint.h>
 #else
-typedef unsigned char uint8_t;
-typedef unsigned int uint32_t;
+using uint8_t = unsigned char;
+using uint32_t = unsigned int;
 #endif
 
 #define SHA256_BLOCK_SIZE  (512 / 8)
diff --git a/src/utils/stringutils.cpp b/src/utils/stringutils.cpp
index 05f1bf7b..59a3f17d 100644
--- a/src/utils/stringutils.cpp
+++ b/src/utils/stringutils.cpp
@@ -194,7 +194,7 @@ bool getBoolFromString(const std::string &text, bool def)
 std::string autocomplete(std::vector<std::string> &candidates,
                          std::string base)
 {
-    std::vector<std::string>::iterator i = candidates.begin();
+    auto i = candidates.begin();
     toLower(base);
     std::string newName("");
 
diff --git a/src/utils/xml.cpp b/src/utils/xml.cpp
index 839479d7..d0f51230 100644
--- a/src/utils/xml.cpp
+++ b/src/utils/xml.cpp
@@ -46,7 +46,7 @@ namespace XML
     };
 
     Document::Document(const std::string &filename, bool useResman):
-        mDoc(0)
+        mDoc(nullptr)
     {
         XMLContext ctx;
         ctx.file = filename;
@@ -54,7 +54,7 @@ namespace XML
         xmlSetStructuredErrorFunc(&ctx, xmlLogger);
 
         int size;
-        char *data = NULL;
+        char *data = nullptr;
         if (useResman)
         {
             ResourceManager *resman = ResourceManager::getInstance();
@@ -78,7 +78,7 @@ namespace XML
             logger->log("Error loading %s", filename.c_str());
         }
 
-        xmlSetStructuredErrorFunc(NULL, xmlLogger);
+        xmlSetStructuredErrorFunc(nullptr, xmlLogger);
     }
 
     Document::~Document()
@@ -89,7 +89,7 @@ namespace XML
 
     xmlNodePtr Document::rootNode()
     {
-        return mDoc ? xmlDocGetRootElement(mDoc) : 0;
+        return mDoc ? xmlDocGetRootElement(mDoc) : nullptr;
     }
 
     int getProperty(xmlNodePtr node, const char* name, int def)
@@ -152,12 +152,12 @@ namespace XML
             if (xmlStrEqual(child->name, BAD_CAST name))
                 return child;
 
-        return NULL;
+        return nullptr;
     }
 
     static void xmlLogger(void *ctx, xmlErrorPtr error)
     {
-        XMLContext *context = static_cast<XMLContext*>(ctx);
+        auto *context = static_cast<XMLContext*>(ctx);
 
         if (context)
             logger->log("Error in XML file '%s' on line %d",
@@ -180,7 +180,7 @@ namespace XML
         LIBXML_TEST_VERSION;
 
         // Handle libxml2 error messages
-        xmlSetStructuredErrorFunc(NULL, xmlLogger);
+        xmlSetStructuredErrorFunc(nullptr, xmlLogger);
     }
 
 } // namespace XML
diff --git a/src/utils/zlib.cpp b/src/utils/zlib.cpp
index 7a5421fd..8234766e 100644
--- a/src/utils/zlib.cpp
+++ b/src/utils/zlib.cpp
@@ -57,7 +57,7 @@ int inflateMemory(unsigned char *in, unsigned int inLength,
 
     do
     {
-        if (strm.next_out == NULL)
+        if (strm.next_out == nullptr)
         {
             inflateEnd(&strm);
             return Z_MEM_ERROR;
@@ -80,7 +80,7 @@ int inflateMemory(unsigned char *in, unsigned int inLength,
         {
             out = (unsigned char*) realloc(out, bufferSize * 2);
 
-            if (out == NULL)
+            if (out == nullptr)
             {
                 inflateEnd(&strm);
                 return Z_MEM_ERROR;
@@ -105,7 +105,7 @@ int inflateMemory(unsigned char *in, unsigned int inLength,
     unsigned int outLength = 0;
     int ret = inflateMemory(in, inLength, out, outLength);
 
-    if (ret != Z_OK || out == NULL)
+    if (ret != Z_OK || out == nullptr)
     {
         if (ret == Z_MEM_ERROR)
         {
@@ -125,7 +125,7 @@ int inflateMemory(unsigned char *in, unsigned int inLength,
         }
 
         free(out);
-        out = NULL;
+        out = nullptr;
         outLength = 0;
     }
 
@@ -163,7 +163,7 @@ void *loadCompressedFile(const std::string &filename, int &filesize)
             {
                 logger->log("Could not decompress file: %s",
                             filename.c_str());
-                return NULL;
+                return nullptr;
             }
 
             filesize = inflatedSize;
@@ -179,5 +179,5 @@ void *loadCompressedFile(const std::string &filename, int &filesize)
         logger->log("Error loading file from drive: %s", filename.c_str());
     }
 
-    return NULL;
+    return nullptr;
 }
diff --git a/src/variabledata.h b/src/variabledata.h
index 90eca967..be822050 100644
--- a/src/variabledata.h
+++ b/src/variabledata.h
@@ -52,7 +52,7 @@ public:
 
     int getData() const { return mData; }
 
-    int getType() const { return DATA_INT; }
+    int getType() const override { return DATA_INT; }
 
 private:
     int mData;
@@ -65,7 +65,7 @@ public:
 
     const std::string &getData() const { return mData; }
 
-    int getType() const { return DATA_STRING; }
+    int getType() const override { return DATA_STRING; }
 
 private:
     std::string mData;
@@ -78,7 +78,7 @@ public:
 
     double getData() const { return mData; }
 
-    int getType() const { return DATA_FLOAT; }
+    int getType() const override { return DATA_FLOAT; }
 
 private:
     double mData;
@@ -91,7 +91,7 @@ public:
 
     bool getData() const { return mData; }
 
-    int getType() const { return DATA_BOOL; }
+    int getType() const override { return DATA_BOOL; }
 
 private:
     bool mData;
@@ -104,7 +104,7 @@ public:
 
     Item *getData() const { return mData; }
 
-    int getType() const { return DATA_ITEM; }
+    int getType() const override { return DATA_ITEM; }
 
 private:
     Item *mData;
@@ -117,7 +117,7 @@ public:
 
     ActorSprite *getData() const { return mData; }
 
-    int getType() const { return DATA_ACTOR; }
+    int getType() const override { return DATA_ACTOR; }
 
 private:
     ActorSprite *mData;
author	Thorbjørn Lindeijer <bjorn@lindeijer.nl>	2024-01-26 16:07:54 +0100
committer	Thorbjørn Lindeijer <bjorn@lindeijer.nl>	2024-01-26 16:07:54 +0100
commit	5afe88df2538274859a162ffd63ed52118e80c19 (patch)
tree	b610dfd58dc748fd63f49565b2a43eea2316714f /src
parent	73ba2a95f5bd4a0dd09af52d5864800be2b0a4c6 (diff)
download	mana-5afe88df2538274859a162ffd63ed52118e80c19.tar.gz mana-5afe88df2538274859a162ffd63ed52118e80c19.tar.bz2 mana-5afe88df2538274859a162ffd63ed52118e80c19.tar.xz mana-5afe88df2538274859a162ffd63ed52118e80c19.zip