extends SceneTree

func _initialize() -> void:
	call_deferred("run_test")

func run_test() -> void:
	var world = load("res://scenes/main.tscn").instantiate()
	root.add_child(world)
	world.set_process(false)
	var player = world.player
	player.set_physics_process(false)
	player.hp = 90.0
	player._regenerate_health(0.5)
	assert(player.hp == 90.0)
	player._regenerate_health(0.5)
	assert(player.hp == 91.0)
	player._regenerate_health(3.0)
	assert(player.hp == 94.0)
	print("PASS: +1 HP ogni secondo, recupero frame lunghi")
	player.hp = 99.5
	player._regenerate_health(5.0)
	assert(player.hp == 100.0)
	player._regenerate_health(0.0)
	player.hp = 90.0
	player._regenerate_health(0.5)
	assert(player.hp == 90.0)
	print("PASS: limite 100 HP, nessun accumulo a vita piena")
	if "--screenshot" in OS.get_cmdline_user_args():
		player.position = Vector3(0, 0, -6)
		player.camera.rotation = Vector3.ZERO
		await create_timer(0.5).timeout
		await RenderingServer.frame_post_draw
		root.get_texture().get_image().save_png("/tmp/zombie-star-window.png")
	player.hp = 0
	player._regenerate_health(10.0)
	assert(player.hp == 0)
	player.hp = 30
	player.death_started = true
	player._regenerate_health(10.0)
	assert(player.hp == 30)
	print("PASS: nessuna rigenerazione dopo morte")
	var environment: Environment
	for node in world.get_children():
		if node is WorldEnvironment:
			environment = node.environment
	assert(environment.background_mode == Environment.BG_SKY)
	assert(environment.sky.sky_material is PanoramaSkyMaterial)
	var texture = environment.sky.sky_material.panorama
	assert(texture.get_width() == 2048 and texture.get_height() == 1024)
	assert(environment.ambient_light_source == Environment.AMBIENT_SOURCE_COLOR)
	print("PASS: panorama stellato caricato, illuminazione stanza preservata")
	world.queue_free()
	await process_frame
	quit()