class_name AnchorDetector2D
extends Area2D

signal anchor_detached
signal anchor_updated(anchor)

var current_anchor = null setget update_anchor
var candidate_anchor = null

func _ready():
	connect("anchor_updated", GameManager, "on_room_changed")

func update_anchor(new):
	current_anchor = new
	new.room_entered()
	emit_signal("anchor_updated", new)


func _on_AnchorDetector2d_area_entered(area: Anchor2D) -> void:
	area.room_pre_entered() #Для подгрузки комнаты в память
	if current_anchor == null:
		update_anchor(area)
	else:
		candidate_anchor = area


func _on_AnchorDetector2d_area_exited(area: Anchor2D) -> void:
	if candidate_anchor == null:
		current_anchor = null
		emit_signal("anchor_detached")
	else:
		if area == current_anchor:
			update_anchor(candidate_anchor)
			area.room_exited()
		candidate_anchor = null