Test-Driven Java Development, Second Edition - Second Edition

Requirement 5 – win conditions (I)

The first game has a finished condition.

When no more discs can be inserted, the game finishes and it is considered a draw.

The following code shows one of the possible implementations:

...
public boolean isFinished() {
  int numOfDiscs = 0;
  for (int col = 0; col < COLUMNS; ++col) {
    numOfDiscs += getNumberOfDiscsInColumn(col);
  }
  if (numOfDiscs >= COLUMNS * ROWS) {
    System.out.println("It's a draw");
    return true;
  }
  return false;
}
...