Make network handler functions virtual

30 files changed, 234 insertions, 208 deletions

diff --git a/src/Makefile.am b/src/Makefile.am
index 81e40d06..0fe7fee7 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -178,12 +178,26 @@ tmw_SOURCES = gui/widgets/avatar.cpp \
 	      gui/window.h \
 	      gui/windowcontainer.cpp \
 	      gui/windowcontainer.h \
+	      net/adminhandler.h \
+	      net/charhandler.h \
+	      net/chathandler.h \
+	      net/generalhandler.h \
+	      net/guildhandler.h \
+	      net/inventoryhandler.h \
+	      net/loginhandler.h \
+	      net/maphandler.h \
 	      net/messagehandler.cpp \
 	      net/messagehandler.h \
 	      net/messagein.cpp \
 	      net/messagein.h \
 	      net/messageout.cpp \
 	      net/messageout.h \
+	      net/npchandler.h \
+	      net/net.h \
+	      net/partyhandler.h \
+	      net/playerhandler.h \
+	      net/skillhandler.h \
+	      net/tradehandler.h \
 	      resources/action.cpp \
 	      resources/action.h \
 	      resources/ambientoverlay.cpp \
diff --git a/src/net/adminhandler.h b/src/net/adminhandler.h
index df013eb3..c3a029b1 100644
--- a/src/net/adminhandler.h
+++ b/src/net/adminhandler.h
@@ -25,29 +25,29 @@
 #include <iosfwd>
 
 namespace Net {
-    class AdminHandler
-    {
-        public:
-            void announce(const std::string &text) {}
+class AdminHandler
+{
+    public:
+        virtual void announce(const std::string &text) {}
 
-            void localAnnounce(const std::string &text) {}
+        virtual void localAnnounce(const std::string &text) {}
 
-            void hide(bool hide) {}
+        virtual void hide(bool hide) {}
 
-            void kick(int playerId) {}
+        virtual void kick(int playerId) {}
 
-            void kick(const std::string &name) {}
+        virtual void kick(const std::string &name) {}
 
-            void ban(int playerId) {}
+        virtual void ban(int playerId) {}
 
-            void ban(const std::string &name) {}
+        virtual void ban(const std::string &name) {}
 
-            void unban(int playerId) {}
+        virtual void unban(int playerId) {}
 
-            void unban(const std::string &name) {}
+        virtual void unban(const std::string &name) {}
 
-            // TODO
-    };
+        // TODO
+};
 }
 
 #endif // ADMINHANDLER_H
diff --git a/src/net/charhandler.h b/src/net/charhandler.h
index f1535ac3..e7871aab 100644
--- a/src/net/charhandler.h
+++ b/src/net/charhandler.h
@@ -25,16 +25,16 @@
 #include <iosfwd>
 
 namespace Net {
-    class CharHandler
-    {
-        public:
-            void ChooseCharacter(int slot);
+class CharHandler
+{
+    public:
+        virtual void ChooseCharacter(int slot) {}
 
-            void NewCharacter(const std::string &name, bool gender,
-                              int hairstyle, int hairColor);
+        virtual void NewCharacter(const std::string &name, bool gender,
+                          int hairstyle, int hairColor) {}
 
-            void DeleteCharacter(int slot);
-    };
+        virtual void DeleteCharacter(int slot) {}
+};
 }
 
 #endif // CHARHANDLER_H
diff --git a/src/net/chathandler.h b/src/net/chathandler.h
index 237ab929..8e32313a 100644
--- a/src/net/chathandler.h
+++ b/src/net/chathandler.h
@@ -25,32 +25,32 @@
 #include <iosfwd>
 
 namespace Net {
-    class ChatHandler
-    {
-        public:
-            void talk(const std::string &text);
+class ChatHandler
+{
+    public:
+        virtual void talk(const std::string &text) {}
 
-            void me(const std::string &text);
+        virtual void me(const std::string &text) {}
 
-            void privateMessage(const std::string &recipient,
-                                const std::string &text);
+        virtual void privateMessage(const std::string &recipient,
+                            const std::string &text) {}
 
-            void channelList() {}
+        virtual void channelList() {}
 
-            void enterChannel(int channelId, const std::string &password) {}
+        virtual void enterChannel(int channelId, const std::string &password) {}
 
-            void quitChannel(int channelId) {}
+        virtual void quitChannel(int channelId) {}
 
-            void sendToChannel(int channelId, const std::string &text) {}
+        virtual void sendToChannel(int channelId, const std::string &text) {}
 
-            void userList(int channelId) {}
+        virtual void userList(int channelId) {}
 
-            void setChannelTopic(int channelId, const std::string &text) {}
+        virtual void setChannelTopic(int channelId, const std::string &text) {}
 
-            void setUserMode(int channelId, const std::string &name, int mode) {}
+        virtual void setUserMode(int channelId, const std::string &name, int mode) {}
 
-            void kickUser(int channelId, const std::string &name) {}
-    };
+        virtual void kickUser(int channelId, const std::string &name) {}
+};
 }
 
 #endif // CHATHANDLER_H
diff --git a/src/net/ea/beinghandler.h b/src/net/ea/beinghandler.h
index 1246f1c1..83ac9fb4 100644
--- a/src/net/ea/beinghandler.h
+++ b/src/net/ea/beinghandler.h
@@ -29,7 +29,7 @@ class BeingHandler : public MessageHandler
     public:
         BeingHandler(bool enableSync);
 
-        void handleMessage(MessageIn &msg);
+        virtual void handleMessage(MessageIn &msg);
 
     private:
         // Should we honor server "Stop Walking" packets
diff --git a/src/net/ea/buysellhandler.h b/src/net/ea/buysellhandler.h
index 7b85b65d..983fd67a 100644
--- a/src/net/ea/buysellhandler.h
+++ b/src/net/ea/buysellhandler.h
@@ -29,7 +29,7 @@ class BuySellHandler : public MessageHandler
     public:
         BuySellHandler();
 
-        void handleMessage(MessageIn &msg);
+        virtual void handleMessage(MessageIn &msg);
 };
 
 #endif // NET_EA_BUYSELLHANDLER_H
diff --git a/src/net/ea/charserverhandler.h b/src/net/ea/charserverhandler.h
index 3b5a4cd8..ec21a357 100644
--- a/src/net/ea/charserverhandler.h
+++ b/src/net/ea/charserverhandler.h
@@ -38,7 +38,7 @@ class CharServerHandler : public MessageHandler
     public:
         CharServerHandler();
 
-        void handleMessage(MessageIn &msg);
+        virtual void handleMessage(MessageIn &msg);
 
         void setCharInfo(LockedArray<LocalPlayer*> *charInfo)
         { mCharInfo = charInfo; }
diff --git a/src/net/ea/chathandler.h b/src/net/ea/chathandler.h
index 62a8c663..93e3e272 100644
--- a/src/net/ea/chathandler.h
+++ b/src/net/ea/chathandler.h
@@ -29,7 +29,7 @@ class ChatHandler : public MessageHandler
     public:
         ChatHandler();
 
-        void handleMessage(MessageIn &msg);
+        virtual void handleMessage(MessageIn &msg);
 };
 
 #endif // NET_EA_CHATHANDLER_H
diff --git a/src/net/ea/equipmenthandler.h b/src/net/ea/equipmenthandler.h
index 2bb73c97..afac0c30 100644
--- a/src/net/ea/equipmenthandler.h
+++ b/src/net/ea/equipmenthandler.h
@@ -29,7 +29,7 @@ class EquipmentHandler : public MessageHandler
     public:
         EquipmentHandler();
 
-        void handleMessage(MessageIn &msg);
+        virtual void handleMessage(MessageIn &msg);
 };
 
 #endif // NET_EA_EQUIPMENTHANDLER_H
diff --git a/src/net/ea/inventoryhandler.h b/src/net/ea/inventoryhandler.h
index 7374fed9..a35021f5 100644
--- a/src/net/ea/inventoryhandler.h
+++ b/src/net/ea/inventoryhandler.h
@@ -29,7 +29,7 @@ class InventoryHandler : public MessageHandler
     public:
         InventoryHandler();
 
-        void handleMessage(MessageIn &msg);
+        virtual void handleMessage(MessageIn &msg);
 };
 
 #endif // NET_EA_INVENTORYHANDLER_H
diff --git a/src/net/ea/itemhandler.h b/src/net/ea/itemhandler.h
index 42a9e4e7..412d8783 100644
--- a/src/net/ea/itemhandler.h
+++ b/src/net/ea/itemhandler.h
@@ -29,7 +29,7 @@ class ItemHandler : public MessageHandler
     public:
         ItemHandler();
 
-        void handleMessage(MessageIn &msg);
+        virtual void handleMessage(MessageIn &msg);
 };
 
 #endif // NET_EA_ITEMHANDLER_H
diff --git a/src/net/ea/loginhandler.h b/src/net/ea/loginhandler.h
index 074bc9e2..9afaab23 100644
--- a/src/net/ea/loginhandler.h
+++ b/src/net/ea/loginhandler.h
@@ -33,7 +33,7 @@ class LoginHandler : public MessageHandler
     public:
         LoginHandler();
 
-        void handleMessage(MessageIn &msg);
+        virtual void handleMessage(MessageIn &msg);
 
         void setLoginData(LoginData *loginData) { mLoginData = loginData; }
 
diff --git a/src/net/ea/maploginhandler.h b/src/net/ea/maploginhandler.h
index 40f8e7bc..33ac9ee7 100644
--- a/src/net/ea/maploginhandler.h
+++ b/src/net/ea/maploginhandler.h
@@ -29,7 +29,7 @@ class MapLoginHandler : public MessageHandler
     public:
         MapLoginHandler();
 
-        void handleMessage(MessageIn &msg);
+        virtual void handleMessage(MessageIn &msg);
 };
 
 #endif // NET_EA_MAPLOGINHANDLER_H
diff --git a/src/net/ea/npchandler.cpp b/src/net/ea/npchandler.cpp
index 136f07fd..0b9a4cf6 100644
--- a/src/net/ea/npchandler.cpp
+++ b/src/net/ea/npchandler.cpp
@@ -25,6 +25,8 @@
 
 #include "net/messagein.h"
 #include "net/messageout.h"
+#include "net/net.h"
+#include "net/npchandler.h"
 
 #include "beingmanager.h"
 #include "localplayer.h"
diff --git a/src/net/ea/npchandler.h b/src/net/ea/npchandler.h
index 71e15e02..a8212ce0 100644
--- a/src/net/ea/npchandler.h
+++ b/src/net/ea/npchandler.h
@@ -30,27 +30,27 @@ class NPCHandler : public MessageHandler, public Net::NpcHandler
     public:
         NPCHandler();
 
-        void handleMessage(MessageIn &msg);
+        virtual void handleMessage(MessageIn &msg);
 
-        void talk(int npcId);
+        virtual void talk(int npcId);
 
-        void nextDialog(int npcId);
+        virtual void nextDialog(int npcId);
 
-        void closeDialog(int npcId);
+        virtual void closeDialog(int npcId);
 
-        void listInput(int npcId, int value);
+        virtual void listInput(int npcId, int value);
 
-        void integerInput(int npcId, int value);
+        virtual void integerInput(int npcId, int value);
 
-        void stringInput(int npcId, const std::string &value);
+        virtual void stringInput(int npcId, const std::string &value);
 
-        void buy(int beingId);
+        virtual void buy(int beingId);
 
-        void sell(int beingId);
+        virtual void sell(int beingId);
 
-        void buyItem(int beingId, int itemId, int amount);
+        virtual void buyItem(int beingId, int itemId, int amount);
 
-        void sellItem(int beingId, int itemId, int amount);
+        virtual void sellItem(int beingId, int itemId, int amount);
 };
 
 extern NPCHandler *npcHandler;
diff --git a/src/net/ea/partyhandler.h b/src/net/ea/partyhandler.h
index c6ee261b..34c3022e 100644
--- a/src/net/ea/partyhandler.h
+++ b/src/net/ea/partyhandler.h
@@ -31,7 +31,7 @@ class PartyHandler : public MessageHandler
 
         ~PartyHandler();
 
-        void handleMessage(MessageIn &msg);
+        virtual void handleMessage(MessageIn &msg);
 };
 
 #endif // NET_EA_PARTYHANDLER_H
diff --git a/src/net/ea/playerhandler.h b/src/net/ea/playerhandler.h
index 9fb2c982..6b36d86f 100644
--- a/src/net/ea/playerhandler.h
+++ b/src/net/ea/playerhandler.h
@@ -29,7 +29,7 @@ class PlayerHandler : public MessageHandler
     public:
         PlayerHandler();
 
-        void handleMessage(MessageIn &msg);
+        virtual void handleMessage(MessageIn &msg);
 };
 
 #endif // NET_EA_PLAYERHANDLER_H
diff --git a/src/net/ea/skillhandler.h b/src/net/ea/skillhandler.h
index f2c950c9..8aa35c19 100644
--- a/src/net/ea/skillhandler.h
+++ b/src/net/ea/skillhandler.h
@@ -29,7 +29,7 @@ class SkillHandler : public MessageHandler
     public:
         SkillHandler();
 
-        void handleMessage(MessageIn &msg);
+        virtual void handleMessage(MessageIn &msg);
 };
 
 #endif // NET_EA_SKILLHANDLER_H
diff --git a/src/net/ea/tradehandler.h b/src/net/ea/tradehandler.h
index e141f6b5..04a3c3e3 100644
--- a/src/net/ea/tradehandler.h
+++ b/src/net/ea/tradehandler.h
@@ -29,7 +29,7 @@ class TradeHandler : public MessageHandler
     public:
         TradeHandler();
 
-        void handleMessage(MessageIn &msg);
+        virtual void handleMessage(MessageIn &msg);
 };
 
 #endif // NET_EA_TRADEHANDLER_H
diff --git a/src/net/generalhandler.h b/src/net/generalhandler.h
index dd823240..573e5062 100644
--- a/src/net/generalhandler.h
+++ b/src/net/generalhandler.h
@@ -23,13 +23,15 @@
 #define GENERALHANDLER_H
 
 namespace Net {
-    class GeneralHandler
-    {
-        public:
-            virtual void load();
-            virtual void unload();
-            virtual void guiWindowsLoaded() {}
-    };
+class GeneralHandler
+{
+    public:
+        virtual void load() {}
+
+        virtual void unload() {}
+
+        virtual void guiWindowsLoaded() {}
+};
 }
 
 #endif // GENERALHANDLER_H
diff --git a/src/net/guildhandler.h b/src/net/guildhandler.h
index 2385819a..d7bd73e6 100644
--- a/src/net/guildhandler.h
+++ b/src/net/guildhandler.h
@@ -25,33 +25,33 @@
 #include <iosfwd>
 
 namespace Net {
-    class GuildHandler
-    {
-        public:
-            void create(const std::string &name) {}
+class GuildHandler
+{
+    public:
+        virtual void create(const std::string &name) {}
 
-            void join(int guildId) {}
+        virtual void join(int guildId) {}
 
-            void invite(int guidId, int playerId) {}
+        virtual void invite(int guidId, int playerId) {}
 
-            void inviteResponse(int guidId, bool response) {}
+        virtual void inviteResponse(int guidId, bool response) {}
 
-            void leave(int guidId) {}
+        virtual void leave(int guidId) {}
 
-            void kick(int guidId, int playerId) {}
+        virtual void kick(int guidId, int playerId) {}
 
-            void chat(int guidId, const std::string &text) {}
+        virtual void chat(int guidId, const std::string &text) {}
 
-            void memberList(int guidId) {}
+        virtual void memberList(int guidId) {}
 
-            void changeMemberPostion(int guildId, int playerId, int level) {}
+        virtual void changeMemberPostion(int guildId, int playerId, int level) {}
 
-            void requestAlliance(int guildId, int otherGuildId) {}
+        virtual void requestAlliance(int guildId, int otherGuildId) {}
 
-            void requestAllianceResponse(int guildId, int otherGuildId, bool response) {}
+        virtual void requestAllianceResponse(int guildId, int otherGuildId, bool response) {}
 
-            void endAlliance(int guildId, int otherGuildId) {}
-    };
+        virtual void endAlliance(int guildId, int otherGuildId) {}
+};
 }
 
 #endif // GUILDHANDLER_H
diff --git a/src/net/inventoryhandler.h b/src/net/inventoryhandler.h
index 22427099..ebd35489 100644
--- a/src/net/inventoryhandler.h
+++ b/src/net/inventoryhandler.h
@@ -27,34 +27,34 @@
 #include <iosfwd>
 
 namespace Net {
-    class InvyHandler
-    {
-        public:
-            void equipItem(Item *item);
+class InvyHandler
+{
+    public:
+        virtual void equipItem(Item *item) {}
 
-            void unequipItem(Item *item);
+        virtual void unequipItem(Item *item) {}
 
-            void useItem(int slot, Item *item);
+        virtual void useItem(int slot, Item *item) {}
 
-            void dropItem(int slot, int amount);
+        virtual void dropItem(int slot, int amount) {}
 
-            void splitItem(int slot, int amount) {}
+        virtual void splitItem(int slot, int amount) {}
 
-            void openStorage() {}
+        virtual void openStorage() {}
 
-            void closeStorage() {}
+        virtual void closeStorage() {}
 
-            //void changeCart() {}
+        //void changeCart() {}
 
-            enum StorageType {
-                INVENTORY,
-                STORAGE,
-                CART
-            };
+        enum StorageType {
+            INVENTORY,
+            STORAGE,
+            CART
+        };
 
-            void moveItem(StorageType source, int slot, int amount,
-                     StorageType destination) {}
-    };
+        virtual void moveItem(StorageType source, int slot, int amount,
+                 StorageType destination) {}
+};
 }
 
 #endif // INVENTORYHANDLER_H
diff --git a/src/net/loginhandler.h b/src/net/loginhandler.h
index ca72248a..19f8c90b 100644
--- a/src/net/loginhandler.h
+++ b/src/net/loginhandler.h
@@ -25,22 +25,27 @@
 #include <iosfwd>
 
 namespace Net {
-    class LoginHandler
-    {
-        public:
-            virtual void loginAccount(const std::string &username,
-                               const std::string &password);
-            virtual void changeEmail(const std::string &email) {}
-            virtual void changePassword(const std::string &username,
-                               const std::string &oldPassword,
-                               const std::string &newPassword) {}
-            virtual void chooseServer(int server) {}
-            virtual void registerAccount(const std::string &username,
-                               const std::string &password,
-                               const std::string &email = "");
-            virtual void unregisterAccount(const std::string &username,
-                               const std::string &password);
-    };
+class LoginHandler
+{
+    public:
+        virtual void loginAccount(const std::string &username,
+                           const std::string &password) {}
+
+        virtual void changeEmail(const std::string &email) {}
+
+        virtual void changePassword(const std::string &username,
+                           const std::string &oldPassword,
+                           const std::string &newPassword) {}
+
+        virtual void chooseServer(int server) {}
+
+        virtual void registerAccount(const std::string &username,
+                           const std::string &password,
+                           const std::string &email = "") {}
+
+        virtual void unregisterAccount(const std::string &username,
+                           const std::string &password) {}
+};
 }
 
 #endif // LOGINHANDLER_H
diff --git a/src/net/maphandler.h b/src/net/maphandler.h
index e5157fc6..be33e074 100644
--- a/src/net/maphandler.h
+++ b/src/net/maphandler.h
@@ -25,17 +25,17 @@
 #include <iosfwd>
 
 namespace Net {
-    class MapHandler
-    {
-        public:
-            void connect() {}
+class MapHandler
+{
+    public:
+        virtual void connect() {}
 
-            void mapLoaded(const std::string &mapName) {}
+        virtual void mapLoaded(const std::string &mapName) {}
 
-            void who() {}
+        virtual void who() {}
 
-            void quit() {}
-    };
+        virtual void quit() {}
+};
 }
 
 #endif // MAPHANDLER_H
diff --git a/src/net/net.h b/src/net/net.h
index 0d2beffc..aa2c8a27 100644
--- a/src/net/net.h
+++ b/src/net/net.h
@@ -37,31 +37,31 @@
 #include "net/tradehandler.h"
 
 namespace Net {
-    Net::AdminHandler *getAdminHandler();
+Net::AdminHandler *getAdminHandler();
 
-    Net::CharHandler *getCharHandler();
+Net::CharHandler *getCharHandler();
 
-    Net::ChatHandler *getChatHandler();
+Net::ChatHandler *getChatHandler();
 
-    Net::GeneralHandler *getGeneralHandler();
+Net::GeneralHandler *getGeneralHandler();
 
-    Net::GuildHandler *getGuildHandler();
+Net::GuildHandler *getGuildHandler();
 
-    Net::InvyHandler *getInvyHandler();
+Net::InvyHandler *getInvyHandler();
 
-    Net::LoginHandler *getLoginHandler();
+Net::LoginHandler *getLoginHandler();
 
-    Net::MapHandler *getMapHandler();
+Net::MapHandler *getMapHandler();
 
-    Net::NpcHandler *getNpcHandler();
+Net::NpcHandler *getNpcHandler();
 
-    Net::PartyHandler *getPartyHandler();
+Net::PartyHandler *getPartyHandler();
 
-    Net::PlayerHandler *getPlayerHandler();
+Net::PlayerHandler *getPlayerHandler();
 
-    Net::SkillHandler *getSkillHandler();
+Net::SkillHandler *getSkillHandler();
 
-    Net::TradeHandler *getTradeHandler();
+Net::TradeHandler *getTradeHandler();
 }
 
 #endif // NET_H
diff --git a/src/net/npchandler.h b/src/net/npchandler.h
index 9ff02f28..18e52b48 100644
--- a/src/net/npchandler.h
+++ b/src/net/npchandler.h
@@ -25,36 +25,36 @@
 #include <iosfwd>
 
 namespace Net {
-    class NpcHandler
-    {
-        public:
-            void talk(int npcId);
+class NpcHandler
+{
+    public:
+        virtual void talk(int npcId) {}
 
-            void nextDialog(int npcId);
+        virtual void nextDialog(int npcId) {}
 
-            void closeDialog(int npcId);
+        virtual void closeDialog(int npcId) {}
 
-            void listInput(int npcId, int value) {}
+        virtual void listInput(int npcId, int value) {}
 
-            void integerInput(int npcId, int value){}
+        virtual void integerInput(int npcId, int value){}
 
-            void stringInput(int npcId, const std::string &value) {}
+        virtual void stringInput(int npcId, const std::string &value) {}
 
-            void sendLetter(int npcId, const std::string &recipient,
-                            const std::string &text) {}
+        virtual void sendLetter(int npcId, const std::string &recipient,
+                        const std::string &text) {}
 
-            void startShoping(int beingId) {}
+        virtual void startShoping(int beingId) {}
 
-            void buy(int beingId) {}
+        virtual void buy(int beingId) {}
 
-            void sell(int beingId) {}
+        virtual void sell(int beingId) {}
 
-            void buyItem(int beingId, int itemId, int ammount) {}
+        virtual void buyItem(int beingId, int itemId, int ammount) {}
 
-            void sellItem(int beingId, int itemId, int ammount) {}
+        virtual void sellItem(int beingId, int itemId, int ammount) {}
 
-            void endShoping(int beingId) {}
-    };
+        virtual void endShoping(int beingId) {}
+};
 }
 
 #endif // NPCHANDLER_H
diff --git a/src/net/partyhandler.h b/src/net/partyhandler.h
index 6c400bf1..b58bd5f4 100644
--- a/src/net/partyhandler.h
+++ b/src/net/partyhandler.h
@@ -25,29 +25,29 @@
 #include <iosfwd>
 
 namespace Net {
-    class PartyHandler
-    {
-        public:
-            void create(const std::string &name="") {}
+class PartyHandler
+{
+    public:
+        virtual void create(const std::string &name="") {}
 
-            void join(int partyId) {}
+        virtual void join(int partyId) {}
 
-            void invite(int playerId) {}
+        virtual void invite(int playerId) {}
 
-            void inviteResponse(bool accept) {}
+        virtual void inviteResponse(bool accept) {}
 
-            void leave() {}
+        virtual void leave() {}
 
-            void kick(int playerId) {}
+        virtual void kick(int playerId) {}
 
-            void chat(const std::string &text) {}
+        virtual void chat(const std::string &text) {}
 
-            void partyMembers() {}
+        virtual void partyMembers() {}
 
-            // void options() {}
+        // virtual void options() {}
 
-            // void message() {}
-    };
+        // virtual void message() {}
+};
 }
 
 #endif // PARTYHANDLER_H
diff --git a/src/net/playerhandler.h b/src/net/playerhandler.h
index df5e341e..87b51e2f 100644
--- a/src/net/playerhandler.h
+++ b/src/net/playerhandler.h
@@ -28,31 +28,31 @@
 #include <iosfwd>
 
 namespace Net {
-    class PlayerHandler
-    {
-        public:
-            void attack(Being *being);
+class PlayerHandler
+{
+    public:
+        virtual void attack(Being *being) {}
 
-            void emote(int emoteId) {}
+        virtual void emote(int emoteId) {}
 
-            void increaseStat(int statId) {}
+        virtual void increaseStat(int statId) {}
 
-            void decreaseStat(int statId) {}
+        virtual void decreaseStat(int statId) {}
 
-            void pickUp(FloorItem *floorItem) {}
+        virtual void pickUp(FloorItem *floorItem) {}
 
-            void setDirection(int direction) {}
+        virtual void setDirection(int direction) {}
 
-            void setDestination(int x, int y, int direction = -1);
+        virtual void setDestination(int x, int y, int direction = -1);
 
-            void sit() {}
+        virtual void sit() {}
 
-            void respawn() {}
+        virtual void respawn() {}
 
-            void ingorePlayer(const std::string &player, bool ignore) {}
+        virtual void ingorePlayer(const std::string &player, bool ignore) {}
 
-            void ingoreAll(bool ignore) {}
-    };
+        virtual void ingoreAll(bool ignore) {}
+};
 }
 
 #endif // PLAYERHANDLER_H
diff --git a/src/net/skillhandler.h b/src/net/skillhandler.h
index 1ab16f05..d0e6cd23 100644
--- a/src/net/skillhandler.h
+++ b/src/net/skillhandler.h
@@ -25,14 +25,17 @@
 #include <iosfwd>
 
 namespace Net {
-    class SkillHandler
-    {
-        public:
-            void up(int skillId) {}
-            void use(int skillId, int level, int beingId) {}
-            void use(int skillId, int level, int x, int y) {}
-            void use(int skillId, const std::string &map) {}
-    };
+class SkillHandler
+{
+    public:
+        virtual void up(int skillId) {}
+
+        virtual void use(int skillId, int level, int beingId) {}
+
+        virtual void use(int skillId, int level, int x, int y) {}
+
+        virtual void use(int skillId, const std::string &map) {}
+};
 }
 
 #endif // SKILLHANDLER_H
diff --git a/src/net/tradehandler.h b/src/net/tradehandler.h
index 84de3196..912e336d 100644
--- a/src/net/tradehandler.h
+++ b/src/net/tradehandler.h
@@ -27,25 +27,25 @@
 #include <iosfwd>
 
 namespace Net {
-    class TradeHandler
-    {
-        public:
-            void request(Being *being) {}
+class TradeHandler
+{
+    public:
+        virtual void request(Being *being) {}
 
-            void respond(bool accepet) {}
+        virtual void respond(bool accepet) {}
 
-            void addItem(int slotNum, int amount) {}
+        virtual void addItem(int slotNum, int amount) {}
 
-            void removeItem(int slotNum, int amount) {}
+        virtual void removeItem(int slotNum, int amount) {}
 
-            void setMoney(int amount) {}
+        virtual void setMoney(int amount) {}
 
-            void confirm() {}
+        virtual void confirm() {}
 
-            void finish() {}
+        virtual void finish() {}
 
-            void cancel() {}
-    };
+        virtual void cancel() {}
+};
 }
 
 #endif // TRADEHANDLER_H