fix(Core/Scripting): fix OnBeforeCreateInstanceScript hook (#19252)

- to me this hook should obviously provide an option to overwrite
  the InstanceScript pointer
- this is e.g. beeing used by mod-eluna (but currently broken)

2 files changed, 2 insertions, 2 deletions

diff --git a/src/server/game/Scripting/ScriptDefines/AllMapScript.cpp b/src/server/game/Scripting/ScriptDefines/AllMapScript.cpp
index e35700a127..c778b8fffb 100644
--- a/src/server/game/Scripting/ScriptDefines/AllMapScript.cpp
+++ b/src/server/game/Scripting/ScriptDefines/AllMapScript.cpp
@@ -279,7 +279,7 @@ void ScriptMgr::OnMapUpdate(Map* map, uint32 diff)
     });
 }
 
-void ScriptMgr::OnBeforeCreateInstanceScript(InstanceMap* instanceMap, InstanceScript* instanceData, bool load, std::string data, uint32 completedEncounterMask)
+void ScriptMgr::OnBeforeCreateInstanceScript(InstanceMap* instanceMap, InstanceScript** instanceData, bool load, std::string data, uint32 completedEncounterMask)
 {
     ExecuteScript<AllMapScript>([&](AllMapScript* script)
     {
diff --git a/src/server/game/Scripting/ScriptDefines/AllMapScript.h b/src/server/game/Scripting/ScriptDefines/AllMapScript.h
index f971988668..77479fc1b0 100644
--- a/src/server/game/Scripting/ScriptDefines/AllMapScript.h
+++ b/src/server/game/Scripting/ScriptDefines/AllMapScript.h
@@ -51,7 +51,7 @@ public:
      * @param data Contains information about the instance save data
      * @param completedEncounterMask Contains information about the completed encouter mask
      */
-    virtual void OnBeforeCreateInstanceScript(InstanceMap* /*instanceMap*/, InstanceScript* /*instanceData*/, bool /*load*/, std::string /*data*/, uint32 /*completedEncounterMask*/) { }
+    virtual void OnBeforeCreateInstanceScript(InstanceMap* /*instanceMap*/, InstanceScript** /*instanceData*/, bool /*load*/, std::string /*data*/, uint32 /*completedEncounterMask*/) { }
 
     /**
      * @brief This hook called before destroy instance