nextPosition method

void nextPosition()

Implementation

void nextPosition() {
  lastPosition = position;
  switch (position) {
    case '|':
      position = '/';
      break;
    case '/':
      position = '-';
      break;
    case '-':
      position = '\\';
      break;
    case '\\':
      position = '|';
      break;
    default:
      position = '|';
      break;
  }
}