Core/Scripts: Add ZoneScript hook for AreaTrigger creation/deletion (#29236)

src/server/game/Entities/AreaTrigger/AreaTrigger.cpp

@@ -39,6 +39,7 @@
 #include "Transport.h"
 #include "Unit.h"
 #include "UpdateData.h"
+#include "ZoneScript.h"
 #include "advstd.h"
 #include <bit>
 
@@ -63,6 +64,9 @@ void AreaTrigger::AddToWorld()
     ///- Register the AreaTrigger for guid lookup and for caster
     if (!IsInWorld())
     {
+        if (m_zoneScript)
+            m_zoneScript->OnAreaTriggerCreate(this);
+
         GetMap()->GetObjectsStore().Insert<AreaTrigger>(GetGUID(), this);
         if (_spawnId)
             GetMap()->GetAreaTriggerBySpawnIdStore().insert(std::make_pair(_spawnId, this));
@@ -76,6 +80,9 @@ void AreaTrigger::RemoveFromWorld()
     ///- Remove the AreaTrigger from the accessor and from all lists of objects in world
     if (IsInWorld())
     {
+        if (m_zoneScript)
+            m_zoneScript->OnAreaTriggerRemove(this);
+
         _isRemoved = true;
 
         if (Unit* caster = GetCaster())
@@ -114,6 +121,8 @@ bool AreaTrigger::Create(uint32 areaTriggerCreatePropertiesId, Unit* caster, Uni
         return false;
     }
 
+    SetZoneScript();
+
     _areaTriggerTemplate = _areaTriggerCreateProperties->Template;
 
     Object::_Create(ObjectGuid::Create<HighGuid::AreaTrigger>(GetMapId(), GetTemplate() ? GetTemplate()->Id.Id : 0, caster->GetMap()->GenerateLowGuid<HighGuid::AreaTrigger>()));
@@ -254,6 +263,8 @@ bool AreaTrigger::CreateServer(Map* map, AreaTriggerTemplate const* areaTriggerT
         return false;
     }
 
+    SetZoneScript();
+
     _areaTriggerTemplate = areaTriggerTemplate;
 
     Object::_Create(ObjectGuid::Create<HighGuid::AreaTrigger>(GetMapId(), areaTriggerTemplate->Id.Id, GetMap()->GenerateLowGuid<HighGuid::AreaTrigger>()));

src/server/game/Maps/ZoneScript.h

@@ -21,6 +21,7 @@
 #include "Define.h"
 #include "ObjectGuid.h"
 
+class AreaTrigger;
 class Creature;
 class GameObject;
 class Player;
@@ -49,6 +50,9 @@ class TC_GAME_API ZoneScript
         virtual void OnGameObjectCreate(GameObject* ) { }
         virtual void OnGameObjectRemove(GameObject* ) { }
 
+        virtual void OnAreaTriggerCreate([[maybe_unused]] AreaTrigger* areaTrigger) { }
+        virtual void OnAreaTriggerRemove([[maybe_unused]] AreaTrigger* areaTrigger) { }
+
         virtual void OnUnitDeath(Unit*) { }
 
         //All-purpose data storage ObjectGuid