Add NewGame to EventHandler

https://forum.zdoom.org/viewtopic.php?t=61908

src/events.cpp

@@ -515,6 +515,14 @@ bool E_CheckReplacement( PClassActor *replacee, PClassActor **replacement )
 	return final;
 }
 
+void E_NewGame()
+{
+	for (DStaticEventHandler* handler = E_FirstEventHandler; handler; handler = handler->next)
+	{
+		handler->NewGame();
+	}
+}
+
 // normal event loopers (non-special, argument-less)
 DEFINE_EVENT_LOOPER(RenderFrame)
 DEFINE_EVENT_LOOPER(WorldLightning)
@@ -668,6 +676,8 @@ DEFINE_EMPTY_HANDLER(DStaticEventHandler, NetworkProcess);
 
 DEFINE_EMPTY_HANDLER(DStaticEventHandler, CheckReplacement);
 
+DEFINE_EMPTY_HANDLER(DStaticEventHandler, NewGame)
+
 // ===========================================
 //
 //  Event handlers
@@ -1154,6 +1164,18 @@ void DStaticEventHandler::CheckReplacement( PClassActor *replacee, PClassActor *
 	}
 }
 
+void DStaticEventHandler::NewGame()
+{
+	IFVIRTUAL(DStaticEventHandler, NewGame)
+	{
+		// don't create excessive DObjects if not going to be processed anyway
+		if (func == DStaticEventHandler_NewGame_VMPtr)
+			return;
+		VMValue params[1] = { (DStaticEventHandler*)this };
+		VMCall(func, params, 1, nullptr, 0);
+	}
+}
+
 //
 void DStaticEventHandler::OnDestroy()
 {

src/events.h

@@ -72,6 +72,9 @@ void E_Console(int player, FString name, int arg1, int arg2, int arg3, bool manu
 // called when looking up the replacement for an actor class
 bool E_CheckReplacement(PClassActor* replacee, PClassActor** replacement);
 
+// called on new game
+void E_NewGame();
+
 // send networked event. unified function.
 bool E_SendNetworkEvent(FString name, int arg1, int arg2, int arg3, bool manual);
 
@@ -172,6 +175,9 @@ public:
 
 	//
 	void CheckReplacement(PClassActor* replacee, PClassActor** replacement, bool* final);
+
+	//
+	void NewGame();
 };
 class DEventHandler : public DStaticEventHandler
 {

src/g_level.cpp

@@ -527,6 +527,10 @@ void G_InitNew (const char *mapname, bool bTitleLevel)
 		gamestate = GS_LEVEL;
 	}
 	G_DoLoadLevel (0, false);
+	if(!savegamerestore)
+	{
+		E_NewGame();
+	}
 }
 
 //

wadsrc/static/zscript/events.txt

@@ -339,6 +339,9 @@ class StaticEventHandler : Object native play version("2.4")
     //
     virtual native void CheckReplacement(ReplaceEvent e);
 
+    //
+    virtual native void NewGame();
+
     // this value will be queried on Register() to decide the relative order of this handler to every other.
     // this is most useful in UI systems.
     // default is 0.