/** * specify two Caves as mutual neighbours; Each is an exit of the other. * * <p>This requires Cave.addExit(Cave) * * @param from * @param to */ private void join2(Cave from, Cave to) { from.addExit(to); to.addExit(from); }
/** * specify one Cave as an exit from another Cave. * * <p>This requires Cave.addExit(Cave) * * @param from * @param to */ private void join(Cave from, Cave to) { from.addExit(to); }