Added Glitch Room Source code to Gitty

tests/robotron/benchmark.gd

@@ -0,0 +1,30 @@
+extends SceneTree
+func _initialize() -> void:
+	call_deferred("run")
+func run() -> void:
+	DisplayServer.window_set_vsync_mode(DisplayServer.VSYNC_DISABLED)
+	root.size=Vector2i(960,720)
+	root.content_scale_size=Vector2i(960,720)
+	var g=load("res://games/robotron/Robotron.tscn").instantiate()
+	root.add_child(g)
+	g.set_physics_process(false)
+	g.sound_enabled=false
+	g.demo=true
+	g.wave=20
+	g.setup_wave()
+	g.phase="play"
+	for i in range(30): await process_frame
+	var started := Time.get_ticks_usec()
+	var peak := 0
+	for i in range(360):
+		g.invulnerable=10
+		g.step_world(1.0/60,Vector2.ZERO,Vector2.from_angle(i*.04))
+		g.clock+=1.0/60
+		g.board.queue_redraw()
+		peak=maxi(peak,g.entities.size())
+		await process_frame
+		await RenderingServer.frame_post_draw
+	var elapsed := (Time.get_ticks_usec()-started)/1000000.0
+	print("360 dense-wave frames; peak entities ",peak,"; ",snappedf(elapsed,.001)," seconds; ",snappedf(360/elapsed,1)," FPS desktop uncapped")
+	g.free()
+	quit()