godot-TBL-extension-base/components/ui/stackable_control.gd

class_name StackableControl extends Control

@export
var _initial_scene: PackedScene

var _current_ref: Node
var _stacked_ref: Array[Node] = []

func _ready() -> void:
	to_prefab(_initial_scene)

func to(node: Node, push_prev: bool = false) -> void:
	if push_prev:
		_stacked_ref.push_back(_current_ref)
	if _current_ref != null:
		remove_child(_current_ref)
		_current_ref = null
	if node != null:
		add_child(node)
		_current_ref = node

func to_prefab(prefab: PackedScene, push_prev: bool = false) -> void:
	if prefab != null:
		to(prefab.instantiate(), push_prev)

func pop() -> void:
	to(_stacked_ref.pop_back(), false)

func clear_stacked() -> void:
	_stacked_ref.clear()