public List<MapPoint> find(FieldObjectType type) {
		List<MapPoint> ret = new ArrayList<>();
		for (int i = 0; i < FIELD_SIZE; i++) {
			for (int j = 0; j < FIELD_SIZE; j++) {
				if (type == getObjectTypeAt(i, j)) {
					ret.add(new MapPoint(i, j));
				}
			}
		}
		return ret;
	}