Implemented RenderOverlay hook that executes directly after level and statusbar

src/d_main.cpp

@@ -900,6 +900,8 @@ void D_Display ()
 	{
 		NetUpdate ();			// send out any new accumulation
 		// normal update
+		// draw ZScript UI stuff
+		E_RenderOverlay();
 		C_DrawConsole (hw2d);	// draw console
 		M_Drawer ();			// menu is drawn even on top of everything
 		FStat::PrintStat ();

src/events.cpp

@@ -411,6 +411,7 @@ bool E_CheckUiProcessors()
 
 // normal event loopers (non-special, argument-less)
 DEFINE_EVENT_LOOPER(RenderFrame)
+DEFINE_EVENT_LOOPER(RenderOverlay)
 DEFINE_EVENT_LOOPER(WorldLightning)
 DEFINE_EVENT_LOOPER(WorldTick)
 
@@ -589,6 +590,7 @@ DEFINE_EMPTY_HANDLER(DStaticEventHandler, WorldLightning)
 DEFINE_EMPTY_HANDLER(DStaticEventHandler, WorldTick)
 
 DEFINE_EMPTY_HANDLER(DStaticEventHandler, RenderFrame)
+DEFINE_EMPTY_HANDLER(DStaticEventHandler, RenderOverlay)
 
 DEFINE_EMPTY_HANDLER(DStaticEventHandler, PlayerEntered)
 DEFINE_EMPTY_HANDLER(DStaticEventHandler, PlayerRespawned)
@@ -798,6 +800,19 @@ void DStaticEventHandler::RenderFrame()
 	}
 }
 
+void DStaticEventHandler::RenderOverlay()
+{
+	IFVIRTUAL(DStaticEventHandler, RenderOverlay)
+	{
+		// don't create excessive DObjects if not going to be processed anyway
+		if (func == DStaticEventHandler_RenderOverlay_VMPtr)
+			return;
+		DRenderEvent* e = E_SetupRenderEvent();
+		VMValue params[2] = { (DStaticEventHandler*)this, e };
+		GlobalVMStack.Call(func, params, 2, nullptr, 0, nullptr);
+	}
+}
+
 static DPlayerEvent* E_SetupPlayerEvent()
 {
 	static DPlayerEvent* e = nullptr;

src/events.h

@@ -45,6 +45,8 @@ void E_WorldLightning();
 void E_WorldTick();
 // called on each render frame once.
 void E_RenderFrame();
+// called after everything's been rendered, but before console/menus
+void E_RenderOverlay();
 // this executes when a player enters the level (once). PlayerEnter+inhub = RETURN
 void E_PlayerEntered(int num, bool fromhub);
 // this executes when a player respawns. includes resurrect cheat.
@@ -125,6 +127,7 @@ public:
 
 	//
 	void RenderFrame();
+	void RenderOverlay();
 
 	//
 	void PlayerEntered(int num, bool fromhub);

wadsrc/static/zscript/events.txt

@@ -301,6 +301,7 @@ class StaticEventHandler : Object native
 
     //
     virtual native void RenderFrame(RenderEvent e);
+    virtual native void RenderOverlay(RenderEvent e);
     
     //
     virtual native void PlayerEntered(PlayerEvent e);