*implement new creatureAI called: AOEAI

-it takes the spell1 from creature_template and casts on him self if aura not found, it can not attack or move
-creature becomes unattackable and invisible
NOTE: flag 128 should not be set in flags_extra field in creature_template, otherwise spells will be only visible to GMs

--HG--
branch : trunk

src/game/CombatAI.cpp

@@ -54,6 +54,11 @@ int TurretAI::Permissible(const Creature *creature)
     return PERMIT_BASE_NO;
 }
 
+int AOEAI::Permissible(const Creature *creature)
+{
+    return PERMIT_BASE_NO;
+}
+
 void CombatAI::InitializeAI()
 {
     for (uint32 i = 0; i < CREATURE_MAX_SPELLS; ++i)
@@ -246,3 +251,32 @@ void TurretAI::UpdateAI(const uint32 diff)
         //if(HostilReference *ref = me->getThreatManager().getCurrentVictim())
             //ref->removeReference();
 }
+
+//////////////
+//AOEAI
+//////////////
+
+AOEAI::AOEAI(Creature *c) : CreatureAI(c)
+{
+    ASSERT(me->m_spells[0]);    
+    me->SetVisibility(VISIBILITY_ON);//visible to see all spell anims
+    me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);//can't be targeted
+    me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_ATTACKABLE_1);//can't be damaged
+    me->SetDisplayId(11686);//invisible model,around a size of a player
+}
+
+bool AOEAI::CanAIAttack(const Unit *who) const
+{
+    return false;
+}
+
+void AOEAI::AttackStart(Unit *who)
+{
+    
+}
+
+void AOEAI::UpdateAI(const uint32 diff)
+{
+    if(!me->HasAura(me->m_spells[0]))
+        me->CastSpell(me, me->m_spells[0],false);
+}

src/game/CombatAI.h

@@ -90,4 +90,15 @@ struct TRINITY_DLL_SPEC TurretAI : public CreatureAI
         float m_minRange;
 };
 
+struct TRINITY_DLL_SPEC AOEAI : public CreatureAI
+{
+    public:
+        explicit AOEAI(Creature *c);
+        bool CanAIAttack(const Unit *who) const;
+        void AttackStart(Unit *who);
+        void UpdateAI(const uint32 diff);
+
+        static int Permissible(const Creature *);
+};
+
 #endif

src/game/CreatureAIRegistry.cpp

@@ -49,6 +49,7 @@ namespace AIRegistry
         (new CreatureAIFactory<ArchorAI>("ArchorAI"))->RegisterSelf();
         (new CreatureAIFactory<TurretAI>("TurretAI"))->RegisterSelf();
         (new CreatureAIFactory<CreatureEventAI>("EventAI"))->RegisterSelf();
+        (new CreatureAIFactory<AOEAI>("AOEAI"))->RegisterSelf();
 
         (new MovementGeneratorFactory<RandomMovementGenerator<Creature> >(RANDOM_MOTION_TYPE))->RegisterSelf();
         (new MovementGeneratorFactory<WaypointMovementGenerator<Creature> >(WAYPOINT_MOTION_TYPE))->RegisterSelf();