Implement option to use delay in ForcedDespawn for creature, allow use delayed forced despawn also in EAI, by NoFantasy.

--HG--
branch : trunk

src/game/Creature.h

@@ -589,7 +589,7 @@ class TRINITY_DLL_SPEC Creature : public Unit, public GridObject<Creature>
         void RemoveCorpse();
         bool isDeadByDefault() const { return m_isDeadByDefault; };
 
-        void ForcedDespawn();
+        void ForcedDespawn(uint32 timeMSToDespawn = 0);
 
         time_t const& GetRespawnTime() const { return m_respawnTime; }
         time_t GetRespawnTimeEx() const;
@@ -710,6 +710,7 @@ class TRINITY_DLL_SPEC Creature : public Unit, public GridObject<Creature>
         CreatureData const* m_creatureData;
 
         uint16 m_LootMode;                                  // bitmask, default DEFAULT_LOOT_MODE, determines what loot will be lootable
+
     private:
         //WaypointMovementGenerator vars
         uint32 m_waypointID;
@@ -734,4 +735,14 @@ class AssistDelayEvent : public BasicEvent
         Unit&             m_owner;
 };
 
+class ForcedDespawnDelayEvent : public BasicEvent
+{
+    public:
+        ForcedDespawnDelayEvent(Creature& owner) : BasicEvent(), m_owner(owner) { }
+        bool Execute(uint64 e_time, uint32 p_time);
+
+    private:
+        Creature& m_owner;
+};
+
 #endif