public int map_pf_move(Coord real_coord) {
		if (path != null) {
			path.clear();
			path_moving = false;
			path_step = 0;
			path_interact_object = null;
		}
		path = APXUtils._pf_find_path(real_coord, 0);
		update_pf_moving();
		return path == null ? -1 : path.size();
	}