Arbitrary code cleanups

Just some stuff that piles up while "looking" at the code, which
eventually gets annoying to ignore while staging real changes.

* Replaced a few NULL occurrences with 0
* Rely on default parameter for std::vector::resize.
* Replaced a few "" with std::string()
* Prefer .empty() to == ""
* Removed a few comparisons with NULL
* Don't check pointers before deleting them
* Removed a bunch of redundant semicolons
* Made some global variables static (local to their compilation unit)
* Prefer prefix ++/-- operators to postfix versions when possible
* Corrected location of a comment

4 files changed, 11 insertions, 21 deletions

diff --git a/src/net/tmwa/beinghandler.cpp b/src/net/tmwa/beinghandler.cpp
index b7cf7bd9..7adb6ed7 100644
--- a/src/net/tmwa/beinghandler.cpp
+++ b/src/net/tmwa/beinghandler.cpp
@@ -78,7 +78,7 @@ BeingHandler::BeingHandler(bool enableSync):
     handledMessages = _messages;
 }
 
-Being *createBeing(int id, short job)
+static Being *createBeing(int id, short job)
 {
     ActorSprite::Type type = ActorSprite::UNKNOWN;
     if (job <= 25 || (job >= 4001 && job <= 4049))
diff --git a/src/net/tmwa/generalhandler.h b/src/net/tmwa/generalhandler.h
index a4725b89..3698c6d3 100644
--- a/src/net/tmwa/generalhandler.h
+++ b/src/net/tmwa/generalhandler.h
@@ -73,4 +73,4 @@ class GeneralHandler : public MessageHandler, public Net::GeneralHandler,
 
 } // namespace TmwAthena
 
-#endif // NET_TA_GENERALHANDLER_H
+#endif // NET_TMWA_GENERALHANDLER_H
diff --git a/src/net/tmwa/inventoryhandler.cpp b/src/net/tmwa/inventoryhandler.cpp
index edb5e53f..48f40e11 100644
--- a/src/net/tmwa/inventoryhandler.cpp
+++ b/src/net/tmwa/inventoryhandler.cpp
@@ -49,7 +49,7 @@ extern Net::InventoryHandler *inventoryHandler;
 
 namespace TmwAthena {
 
-const EquipmentSlot EQUIP_POINTS[EQUIP_VECTOR_END] = {
+static const EquipmentSlot EQUIP_POINTS[EQUIP_VECTOR_END] = {
     EQUIP_LEGS_SLOT,
     EQUIP_FIGHT1_SLOT,
     EQUIP_ARMS_SLOT,
@@ -60,9 +60,10 @@ const EquipmentSlot EQUIP_POINTS[EQUIP_VECTOR_END] = {
     EQUIP_NECKLACE_SLOT,
     EQUIP_HEAD_SLOT,
     EQUIP_TORSO_SLOT,
-    EQUIP_PROJECTILE_SLOT};
+    EQUIP_PROJECTILE_SLOT
+};
 
-int getSlot(int eAthenaSlot)
+static int getSlot(int eAthenaSlot)
 {
     if (eAthenaSlot == 0)
     {
diff --git a/src/net/tmwa/inventoryhandler.h b/src/net/tmwa/inventoryhandler.h
index 315be16c..218723e6 100644
--- a/src/net/tmwa/inventoryhandler.h
+++ b/src/net/tmwa/inventoryhandler.h
@@ -49,10 +49,6 @@ class EquipBackend : public Equipment::Backend
         Item *getEquipment(int index) const
         {
             int invyIndex = mEquipment[index];
-            if (invyIndex == -1)
-            {
-                return NULL;
-            }
             return PlayerInfo::getInventory()->getItem(invyIndex);
         }
 
@@ -62,11 +58,8 @@ class EquipBackend : public Equipment::Backend
             {
                 if (mEquipment[i] != -1)
                 {
-                    Item* item = PlayerInfo::getInventory()->getItem(i);
-                    if (item)
-                    {
+                    if (Item *item = PlayerInfo::getInventory()->getItem(i))
                         item->setEquipped(false);
-                    }
                 }
 
                 mEquipment[i] = -1;
@@ -75,20 +68,16 @@ class EquipBackend : public Equipment::Backend
 
         void setEquipment(int index, int inventoryIndex)
         {
+            Inventory *inventory = PlayerInfo::getInventory();
+
             // Unequip existing item
-            Item* item = PlayerInfo::getInventory()->getItem(mEquipment[index]);
-            if (item)
-            {
+            if (Item *item = inventory->getItem(mEquipment[index]))
                 item->setEquipped(false);
-            }
 
             mEquipment[index] = inventoryIndex;
 
-            item = PlayerInfo::getInventory()->getItem(inventoryIndex);
-            if (item)
-            {
+            if (Item *item = inventory->getItem(inventoryIndex))
                 item->setEquipped(true);
-            }
 
             inventoryWindow->updateButtons();
         }