Core/SAI: Implemented SMARTCAST_AURA_NOT_PRESENT as castflag, the spell will only be casted if the target does not have the aura

Signed-off-by: Subv <s.v.h21@hotmail.com>

2 files changed, 18 insertions, 4 deletions

diff --git a/src/server/game/AI/SmartScripts/SmartScript.cpp b/src/server/game/AI/SmartScripts/SmartScript.cpp
index ae2558830b5..95574e6d21d 100644
--- a/src/server/game/AI/SmartScripts/SmartScript.cpp
+++ b/src/server/game/AI/SmartScripts/SmartScript.cpp
@@ -479,7 +479,10 @@ void SmartScript::ProcessAction(SmartScriptHolder& e, Unit* unit, uint32 var0, u
                     if (e.action.cast.flags & SMARTCAST_INTERRUPT_PREVIOUS)
                         me->InterruptNonMeleeSpells(false);
 
-                    me->CastSpell((*itr)->ToUnit(), e.action.cast.spell, (e.action.cast.flags & SMARTCAST_TRIGGERED) ? true : false);
+                    if (!(e.action.cast.flags & SMARTCAST_AURA_NOT_PRESENT) || !(*itr)->ToUnit()->HasAura(e.action.cast.spell))
+                        me->CastSpell((*itr)->ToUnit(), e.action.cast.spell, (e.action.cast.flags & SMARTCAST_TRIGGERED) ? true : false);
+                    else
+                        sLog->outDebug(LOG_FILTER_DATABASE_AI, "Spell %u not casted because it has flag SMARTCAST_AURA_NOT_PRESENT and the target (Guid: %u Entry: %u Type: %u) already has the aura", e.action.cast.spell, (*itr)->GetGUID(), (*itr)->GetEntry(), uint32((*itr)->GetTypeId()));
                     sLog->outDebug(LOG_FILTER_DATABASE_AI, "SmartScript::ProcessAction:: SMART_ACTION_CAST:: Creature %u casts spell %u on target %u with castflags %u",
                         me->GetGUIDLow(), e.action.cast.spell, (*itr)->GetGUIDLow(), e.action.cast.flags);
                 }
@@ -505,7 +508,11 @@ void SmartScript::ProcessAction(SmartScriptHolder& e, Unit* unit, uint32 var0, u
                     if (e.action.cast.flags & SMARTCAST_INTERRUPT_PREVIOUS)
                         tempLastInvoker->InterruptNonMeleeSpells(false);
 
-                    tempLastInvoker->CastSpell((*itr)->ToUnit(), e.action.cast.spell, (e.action.cast.flags & SMARTCAST_TRIGGERED) ? true : false);
+                    if (!(e.action.cast.flags & SMARTCAST_AURA_NOT_PRESENT) || !(*itr)->ToUnit()->HasAura(e.action.cast.spell))
+                        tempLastInvoker->CastSpell((*itr)->ToUnit(), e.action.cast.spell, (e.action.cast.flags & SMARTCAST_TRIGGERED) ? true : false);
+                    else
+                        sLog->outDebug(LOG_FILTER_DATABASE_AI, "Spell %u not casted because it has flag SMARTCAST_AURA_NOT_PRESENT and the target (Guid: %u Entry: %u Type: %u) already has the aura", e.action.cast.spell, (*itr)->GetGUID(), (*itr)->GetEntry(), uint32((*itr)->GetTypeId()));
+
                     sLog->outDebug(LOG_FILTER_DATABASE_AI, "SmartScript::ProcessAction:: SMART_ACTION_INVOKER_CAST: Invoker %u casts spell %u on target %u with castflags %u",
                         tempLastInvoker->GetGUIDLow(), e.action.cast.spell, (*itr)->GetGUIDLow(), e.action.cast.flags);
                 }
@@ -1563,8 +1570,15 @@ void SmartScript::ProcessAction(SmartScriptHolder& e, Unit* unit, uint32 var0, u
                         (*itr)->ToUnit()->InterruptNonMeleeSpells(false);
 
                     for (ObjectList::const_iterator it = targets->begin(); it != targets->end(); ++it)
+                    {
                         if (IsUnit(*it))
-                            (*itr)->ToUnit()->CastSpell((*it)->ToUnit(), e.action.cast.spell, (e.action.cast.flags & SMARTCAST_TRIGGERED) ? true : false);
+                        {
+                            if (!(e.action.cast.flags & SMARTCAST_AURA_NOT_PRESENT) || !(*it)->ToUnit()->HasAura(e.action.cast.spell))
+                                (*itr)->ToUnit()->CastSpell((*it)->ToUnit(), e.action.cast.spell, (e.action.cast.flags & SMARTCAST_TRIGGERED) ? true : false);
+                            else
+                                sLog->outDebug(LOG_FILTER_DATABASE_AI, "Spell %u not casted because it has flag SMARTCAST_AURA_NOT_PRESENT and the target (Guid: %u Entry: %u Type: %u) already has the aura", e.action.cast.spell, (*it)->GetGUID(), (*it)->GetEntry(), uint32((*it)->GetTypeId()));
+                        }
+                    }
                 }
             }
 
diff --git a/src/server/game/AI/SmartScripts/SmartScriptMgr.h b/src/server/game/AI/SmartScripts/SmartScriptMgr.h
index 5cc7d0e716c..0d182e1beb3 100644
--- a/src/server/game/AI/SmartScripts/SmartScriptMgr.h
+++ b/src/server/game/AI/SmartScripts/SmartScriptMgr.h
@@ -1180,7 +1180,7 @@ enum SmartCastFlags
     //CAST_FORCE_CAST             = 0x04,                     //Forces cast even if creature is out of mana or out of range
     //CAST_NO_MELEE_IF_OOM        = 0x08,                     //Prevents creature from entering melee if out of mana or out of range
     //CAST_FORCE_TARGET_SELF      = 0x10,                     //Forces the target to cast this spell on itself
-    //CAST_AURA_NOT_PRESENT       = 0x20,                     //Only casts the spell if the target does not have an aura from the spell
+    SMARTCAST_AURA_NOT_PRESENT       = 0x20,                     //Only casts the spell if the target does not have an aura from the spell
 };
 
 // one line in DB is one event