extends SceneTree
## Dev helper: run the game windowed for N frames, save a screenshot, quit.
## Usage: godot --path . -s res://src/test/take_screenshot.gd   (windowed)

var frames := 0
const TARGET_FRAMES := 300

func _initialize() -> void:
	# Launch the main scene.
	var packed: PackedScene = load("res://scenes/main.tscn")
	var inst: Node = packed.instantiate()
	root.add_child(inst)

func _process(_delta: float) -> bool:
	frames += 1
	if frames == 60:
		var img: Image = root.get_texture().get_image()
		var err := img.save_png("user://screenshot.png")
		print("screenshot saved err=", err)
		quit(0)
		return true
	if frames > TARGET_FRAMES:
		quit(0)
		return true
	return false