Find pathable tiles

utils.ts

findPathableAround(target: RoomPosition): RoomPosition[]
findPathableAround(target: { pos: RoomPosition }): RoomPosition[]
findPathableAround(target: any, ignoreCreeps: boolean = false): RoomPosition[] {
	var pos: RoomPosition = target.pos ? target.pos : target;
	var room = Game.rooms[pos.roomName];
	var pathableTiles: RoomPosition[] = [];
	var area = room.lookAtArea(pos.y - 1, pos.x - 1, pos.y + 1, pos.x + 1);
	for (var x in area) {
		for (var y in area[x]) {
			var results: LookAtResult[] = y;
			if (!results.some(lookAt => 
				lookAt.type === "constructionSite" ||
				lookAt.type === "exit" ||
				lookAt.type === "source" ||
				lookAt.type === "structure" ||
				(ignoreCreeps ? true : lookAt.type === "creep") ||
				lookAt.type === "terrain" && 
				lookAt.terrain !== "normal" && 
				lookAt.terrain !== "swamp")) {
					pathableTiles.push(room.getPositionAt(x, y));
				}
		}
	}
	return pathableTiles;
}