Core/AI: delay all AI()->Respawn() hooks by 1 server tick, this way when creatures are just got created they will successfully find other objects in scripts at spawn time

--HG--
branch : trunk

src/server/game/Entities/Creature/Creature.cpp

@@ -161,6 +161,7 @@ m_formation(NULL)
     m_CombatDistance = 0;//MELEE_RANGE;
 
     ResetLootMode(); // restore default loot mode
+    TriggerJustRespawned = false;
 }
 
 Creature::~Creature()
@@ -437,6 +438,12 @@ void Creature::Update(uint32 diff)
     else
         m_GlobalCooldown -= diff;
 
+    if (IsAIEnabled && TriggerJustRespawned)
+    {
+        TriggerJustRespawned = false;
+        AI()->JustRespawned();
+    }
+
     switch(m_deathState)
     {
         case JUST_ALIVED:
@@ -1630,7 +1637,7 @@ void Creature::Respawn(bool force)
 
         //Call AI respawn virtual function
         if (IsAIEnabled)
-            AI()->JustRespawned();
+            TriggerJustRespawned = true;//delay event to next tick so all creatures are created on the map before processing
 
         uint32 poolid = GetDBTableGUIDLow() ? sPoolMgr.IsPartOfAPool<Creature>(GetDBTableGUIDLow()) : 0;
         if (poolid)

src/server/game/Entities/Creature/Creature.h

@@ -732,6 +732,7 @@ class Creature : public Unit, public GridObject<Creature>
 
         //Formation var
         CreatureGroup *m_formation;
+        bool TriggerJustRespawned;
 };
 
 class AssistDelayEvent : public BasicEvent