SIP_example_1

private String assembleDirections() {
  available = new StringBuffer();
  nDirections = directions.size();
  directionsPlaced = 0;
  for (String dir: new String[]{Game.NORTH, Game.SOUTH, Game.EAST, Game.WEST}) {
    if (direction.contains(dir)) {
      placeDirection(dir);
    }
  }
}

private void placeDirection(String dir) {
  directionsPlaced++;
  if (isLastOfMany()) {
    available.append(" and ");
  } else if (notFirst()) {
    available.append(", ");
  }
  available.append(directionName(dir));
}