@tool
extends ReferenceRect
class_name PaintingPile


func _get_minimum_size() -> Vector2:
	return Vector2(0, size.x * 20. / 31.)


func _set_height_from_width():
	size.y = size.x * 20. / 31.
	update_minimum_size()


func _ready() -> void:
	resized.connect(_set_height_from_width)


var tracking: Array[Node]

func push_tracking(node: Node) -> Rect2:
	tracking.push_back(node)
	var rect := get_global_rect()
	rect.position += Vector2(8, 4) * (tracking.size() - 1)
	return rect

func pop_tracking() -> Node:
	return tracking.pop_back()