gf-tankmen optimisation

source/funkin/desktop/DesktopScreen.hx

@@ -0,0 +1,55 @@
+package funkin.desktop;
+
+import flixel.util.FlxDestroyUtil.IFlxDestroyable;
+import flixel.FlxCamera;
+import openfl.events.Event;
+import flixel.FlxG;
+import lime.app.Application;
+import lime.ui.Window;
+
+class DesktopScreen implements IFlxDestroyable {
+    public var cameras:Array<FlxCamera> = [];
+    public var window:Window;
+
+    public function new() {
+        window = Application.current.createWindow({
+            x: 0,
+            y: 0,
+            width: FlxG.width,
+            height: FlxG.height
+        });
+        @:privateAccess
+        Application.current.__addWindow(window);
+
+        window.stage.addEventListener(Event.ENTER_FRAME, onFrameEnter);
+
+        FlxG.signals.preDraw.add(__onPreDraw);
+        FlxG.signals.postDraw.add(__onPostDraw);
+
+        window.onClose.add(destroy);
+    }
+
+    public function addCamera(cam:FlxCamera) {
+        cameras.push(cam);
+        window.stage.addChild(cam.flashSprite);
+    }
+
+    private inline function __onPreDraw() {}
+    private inline function __onPostDraw() {}
+
+    private function onFrameEnter(event:Event) {
+        try {
+            @:privateAccess
+            for(c in cameras)
+                c.render();
+        } catch(e) {
+            trace(e.toString());
+        }
+    }
+
+    public function destroy() {
+        for(c in cameras)
+            c.destroy();
+        window.close();
+    }
+}

source/funkin/menus/MainMenuState.hx

@@ -103,9 +103,20 @@ class MainMenuState extends MusicBeatState
 
 		if (!selectedSomethin)
 		{
-			if (canAccessDebugMenus)
+			if (canAccessDebugMenus) {
+				
 				if (FlxG.keys.justPressed.SEVEN)
 					FlxG.switchState(new funkin.desktop.DesktopMain());
+				if (FlxG.keys.justPressed.EIGHT) {
+					var scr = new funkin.desktop.DesktopScreen();
+					var camList = [for(c in FlxG.cameras.list) c];
+					for(c in camList) {
+						FlxG.cameras.remove(c, false);
+						scr.addCamera(c);
+					}
+					cameras = camList;
+				}
+			}
 
 			if (controls.UP_P)
 				changeItem(-1);