# Guests cross by can_customer_cross_door() and ignore the world layer.
	# The hero stays inside even while the dining-room door is open.
	var player_boundary := StaticBody2D.new()
	player_boundary.name = "PlayerBoundary"
	player_boundary.collision_layer = 2
	player_boundary.collision_mask = 0
	var player_collision := CollisionShape2D.new()
	player_collision.shape = door_shape
	player_boundary.add_child(player_collision)
	door.add_child(player_boundary)