Core/Scripts: add new hook OnPlayerAddToBattleground

src/game/Scripting/ScriptMgr.cpp

@@ -1263,9 +1263,14 @@ void ScriptMgr::OnPlayerUpdateFaction(Player* player)
     FOREACH_SCRIPT(PlayerScript)->OnUpdateFaction(player);
 }
 
+void ScriptMgr::OnPlayerAddToBattleground(Player* player, Battleground *bg)
+{
+    FOREACH_SCRIPT(PlayerScript)->OnAddToBattleground(player, bg);
+}
+
 void ScriptMgr::OnPlayerRemoveFromBattleground(Player* player, Battleground* bg)
 {
-    FOREACH_SCRIPT(PlayerScript)->OnPlayerRemoveFromBattleground(player, bg);
+    FOREACH_SCRIPT(PlayerScript)->OnRemoveFromBattleground(player, bg);
 }
 
 void ScriptMgr::OnAchievementComplete(Player* player, AchievementEntry const* achievement)

src/game/Scripting/ScriptMgr.h

@@ -748,8 +748,11 @@ class PlayerScript : public ScriptObject
         // Called when team/faction is set on player
         virtual void OnUpdateFaction(Player* /*player*/) { }
 
+        // Called when a player is added to battleground
+        virtual void OnAddToBattleground(Player* /*player*/, Battleground* /*bg*/) { }
+
         // Called when a player is removed from battleground
-        virtual void OnPlayerRemoveFromBattleground(Player* /*player*/, Battleground* /*bg*/) { }
+        virtual void OnRemoveFromBattleground(Player* /*player*/, Battleground* /*bg*/) { }
 
         // Called when a player complete an achievement
         virtual void OnAchiComplete(Player* /*player*/, AchievementEntry const* /*achievement*/) { }
@@ -1048,6 +1051,7 @@ class ScriptMgr
         void OnCriteriaSave(SQLTransaction& trans, Player* player, uint16 critId, CriteriaProgress criteriaData);
         void OnGossipSelect(Player* player, uint32 menu_id, uint32 sender, uint32 action);
         void OnGossipSelectCode(Player* player, uint32 menu_id, uint32 sender, uint32 action, const char* code);
+        void OnPlayerAddToBattleground(Player* player, Battleground* bg);
 
     public: /* GuildScript */