*Cleanup in single target auras (thanks to JuliuSZS some useable debug info)

*Add ToInstanceMap() and ToMapInstanced() typecast functions and CAST_INST macro to use in scripts.

--HG--
branch : trunk

src/server/game/Maps/Map.h

@@ -51,6 +51,8 @@ struct ScriptInfo;
 struct ScriptAction;
 struct Position;
 class BattleGround;
+class MapInstanced;
+class InstanceMap;
 
 //******************************************
 // Map file format defines
@@ -446,6 +448,12 @@ class Map : public GridRefManager<NGridType>
         Creature* GetCreature(uint64 guid);
         GameObject* GetGameObject(uint64 guid);
         DynamicObject* GetDynamicObject(uint64 guid);
+
+        MapInstanced* ToMapInstanced(){ if (Instanceable())  return reinterpret_cast<MapInstanced*>(this); else return NULL;  }
+        const MapInstanced* ToMapInstanced() const { if (Instanceable())  return (const MapInstanced*)((MapInstanced*)this); else return NULL;  }
+
+        InstanceMap* ToInstanceMap(){ if (IsDungeon())  return reinterpret_cast<InstanceMap*>(this); else return NULL;  }
+        const InstanceMap* ToInstanceMap() const { if (IsDungeon())  return (const InstanceMap*)((InstanceMap*)this); else return NULL;  }
     private:
         void LoadMapAndVMap(int gx, int gy);
         void LoadVMap(int gx, int gy);