Added Glitch Room Source code to Gitty

tests/space_invaders/render_preview.gd

@@ -0,0 +1,26 @@
+extends SceneTree
+func _initialize() -> void:
+	call_deferred("run")
+func run() -> void:
+	root.size = Vector2i(672,768)
+	root.content_scale_size = Vector2i(672,768)
+	var g = load("res://games/space_invaders/SpaceInvaders.tscn").instantiate()
+	root.add_child(g)
+	g.set_physics_process(false)
+	g.sound_enabled = false
+	for state in ["attract","play","demo"]:
+		g.phase=state
+		g.phase_time=8
+		if state=="play":
+			g.start_game()
+			g.phase="play"
+		if state=="demo":
+			g.begin_demo()
+			for i in range(720): g._physics_process(1.0/60)
+		g.board.queue_redraw()
+		await process_frame
+		await process_frame
+		await RenderingServer.frame_post_draw
+		root.get_texture().get_image().save_png("res://tests/space_invaders/"+state+".png")
+	g.free()
+	quit()