class_name UnderlayViewport extends SubViewport

@export var apply_on_ready := false

func _ready() -> void:
	get_viewport().size_changed.connect(_update_size)
	_update_size()
	if apply_on_ready:
		apply()

func _exit_tree() -> void:
	dispose()

func apply() -> void:
	FX.set_underlay_viewport(self)

func dispose() -> void:
	FX.clear_underlay(self)

func _update_size() -> void:
	size = get_viewport().get_visible_rect().size