private LinkedCoordsBuilder(LinkedCoords currentLinkedCoords) {
this.currentLinkedCoords = currentLinkedCoords;
}
public LinkedCoordsBuilder with(int x, int y) {
Coord coord = new Coord(x, y);
OccupiedCoords linkedCoords = new OccupiedCoords(coord, currentLinkedCoords);
return new LinkedCoordsBuilder(linkedCoords);
}