Core/Scripts: Add support for spawn specific C++ scripts

Closes #19247

4 files changed, 15 insertions, 2 deletions

diff --git a/src/server/game/Entities/Creature/Creature.cpp b/src/server/game/Entities/Creature/Creature.cpp
index 68c0065095b..3d6c0a25740 100644
--- a/src/server/game/Entities/Creature/Creature.cpp
+++ b/src/server/game/Entities/Creature/Creature.cpp
@@ -936,7 +936,7 @@ bool Creature::Create(ObjectGuid::LowType guidlow, Map* map, uint32 /*phaseMask*
         SetByteValue(UNIT_FIELD_BYTES_0, UNIT_BYTES_0_OFFSET_GENDER, minfo->gender);
     }
 
-    LastUsedScriptID = GetCreatureTemplate()->ScriptID;
+    LastUsedScriptID = GetScriptId();
 
     /// @todo Replace with spell, handle from DB
     if (IsSpiritHealer() || IsSpiritGuide())
@@ -2500,6 +2500,9 @@ std::string Creature::GetScriptName() const
 
 uint32 Creature::GetScriptId() const
 {
+    if (CreatureData const* creatureData = GetCreatureData())
+        return creatureData->ScriptId;
+
     return sObjectMgr->GetCreatureTemplate(GetEntry())->ScriptID;
 }
 
diff --git a/src/server/game/Entities/Creature/Creature.h b/src/server/game/Entities/Creature/Creature.h
index 8bcebd60bf7..d5cebc6bd06 100644
--- a/src/server/game/Entities/Creature/Creature.h
+++ b/src/server/game/Entities/Creature/Creature.h
@@ -543,6 +543,7 @@ struct CreatureData
     uint32 dynamicflags;
     uint32 phaseid;
     uint32 phaseGroup;
+    uint32 ScriptId;
     bool dbData;
 };
 
diff --git a/src/server/game/Entities/GameObject/GameObject.cpp b/src/server/game/Entities/GameObject/GameObject.cpp
index d5931dc1718..e2dfed4fb8c 100644
--- a/src/server/game/Entities/GameObject/GameObject.cpp
+++ b/src/server/game/Entities/GameObject/GameObject.cpp
@@ -1988,6 +1988,14 @@ void GameObject::EventInform(uint32 eventId, WorldObject* invoker /*= nullptr*/)
             bgMap->GetBG()->ProcessEvent(this, eventId, invoker);
 }
 
+uint32 GameObject::GetScriptId() const
+{
+    if (GameObjectData const* gameObjectData = GetGOData())
+        return gameObjectData->ScriptId;
+
+    return GetGOInfo()->ScriptId;
+}
+
 // overwrite WorldObject function for proper name localization
 std::string const & GameObject::GetNameForLocaleIdx(LocaleConstant loc_idx) const
 {
diff --git a/src/server/game/Entities/GameObject/GameObject.h b/src/server/game/Entities/GameObject/GameObject.h
index 0e22c841022..7e265ebf2cd 100644
--- a/src/server/game/Entities/GameObject/GameObject.h
+++ b/src/server/game/Entities/GameObject/GameObject.h
@@ -913,6 +913,7 @@ struct GameObjectData
     uint8 artKit;
     uint32 phaseid;
     uint32 phaseGroup;
+    uint32 ScriptId;
     bool dbData;
 };
 
@@ -1124,7 +1125,7 @@ class TC_GAME_API GameObject : public WorldObject, public GridObject<GameObject>
 
         void EventInform(uint32 eventId, WorldObject* invoker = NULL);
 
-        virtual uint32 GetScriptId() const { return GetGOInfo()->ScriptId; }
+        virtual uint32 GetScriptId() const;
         GameObjectAI* AI() const { return m_AI; }
 
         std::string GetAIName() const;