[10493] Implement EVENT_T_TARGET_MISSING_BUFF

doc/EventAI.txt

@@ -88,6 +88,7 @@ Some events such as EVENT_T_AGGRO, EVENT_T_DEATH, EVENT_T_SPAWNED, and EVENT_T_E
 25   EVENT_T_SUMMONED_JUST_DIED     CreatureId, RepeatMin, RepeatMax                        Expires after creature with entry = (Param1) is die (Param1 = 0 means all spawns). Will repeat every (Param2) and (Param3).
 26   EVENT_T_SUMMONED_JUST_DESPAWN  CreatureId, RepeatMin, RepeatMax                        Expires before creature with entry = (Param1) is despawn (Param1 = 0 means all spawns). Will repeat every (Param2) and (Param3).
 27   EVENT_T_MISSING_BUFF           SpellID, AmmountInStack, RepeatMin, RepeatMax           Expires when a creature not has spell (Param1) auras applied in a stack greater or equal to value provided in (Param2). Will repeat every (Param3) and (Param4).
+28   EVENT_T_TARGET_MISSING_BUFF    SpellID, AmmountInStack, RepeatMin, RepeatMax           Expires when a target unit not has spell (Param1) auras applied in a stack greater or equal to value provided in (Param2). Will repeat every (Param3) and (Param4).
 
 
 =========================================

src/game/CreatureEventAI.cpp

@@ -344,6 +344,20 @@ bool CreatureEventAI::ProcessEvent(CreatureEventAIHolder& pHolder, Unit* pAction
             pHolder.UpdateRepeatTimer(m_creature,event.buffed.repeatMin,event.buffed.repeatMax);
             break;
         }
+        case EVENT_T_TARGET_MISSING_BUFF:
+        {
+            //Prevent event from occuring on no unit
+            if (!pActionInvoker)
+                return false;
+
+            SpellAuraHolder* holder = pActionInvoker->GetSpellAuraHolder(event.buffed.spellId);
+            if (holder && holder->GetStackAmount() >= event.buffed.amount)
+                return false;
+
+            //Repeat Timers
+            pHolder.UpdateRepeatTimer(m_creature,event.buffed.repeatMin,event.buffed.repeatMax);
+            break;
+        }
         default:
             sLog.outErrorDb("CreatureEventAI: Creature %u using Event %u has invalid Event Type(%u), missing from ProcessEvent() Switch.", m_creature->GetEntry(), pHolder.Event.event_id, pHolder.Event.event_type);
             break;

src/game/CreatureEventAI.h

@@ -61,6 +61,7 @@ enum EventAI_Type
     EVENT_T_SUMMONED_JUST_DIED      = 25,                   // CreatureId, RepeatMin, RepeatMax
     EVENT_T_SUMMONED_JUST_DESPAWN   = 26,                   // CreatureId, RepeatMin, RepeatMax
     EVENT_T_MISSING_BUFF            = 27,                   // Param1 = SpellID, Param2 = Number of time stacked expected, Param3/4 Repeat Min/Max
+    EVENT_T_TARGET_MISSING_BUFF     = 28,                   // Param1 = SpellID, Param2 = Number of time stacked expected, Param3/4 Repeat Min/Max
 
     EVENT_T_END,
 };
@@ -521,6 +522,7 @@ struct CreatureEventAI_Event
         // EVENT_T_BUFFED                                   = 23
         // EVENT_T_TARGET_BUFFED                            = 24
         // EVENT_T_MISSING_BUFF                             = 27
+        // EVENT_T_TARGET_MISSING_BUFF                      = 28
         struct
         {
             uint32 spellId;

src/game/CreatureEventAIMgr.cpp

@@ -463,6 +463,7 @@ void CreatureEventAIMgr::LoadCreatureEventAI_Scripts()
                 case EVENT_T_BUFFED:
                 case EVENT_T_TARGET_BUFFED:
                 case EVENT_T_MISSING_BUFF:
+                case EVENT_T_TARGET_MISSING_BUFF:
                 {
                     SpellEntry const* pSpell = sSpellStore.LookupEntry(temp.buffed.spellId);
                     if (!pSpell)

src/shared/revision_nr.h

@@ -1,4 +1,4 @@
 #ifndef __REVISION_NR_H__
 #define __REVISION_NR_H__
- #define REVISION_NR "10492"
+ #define REVISION_NR "10493"
 #endif // __REVISION_NR_H__