public GameOverEventArgs(GameWin winner)
{
Winning = winner;
}
public void Play(int index)
{
// Check if he can play
if (IsGameOver)
{
throw new GameException(GameErrorType.GameOver);
}
if (index <= 0 && index >= 8)
{
throw new GameException(GameErrorType.IndexOutOfRange);
}
if (plays[index] != GamePlay.None)
{
throw new GameException(GameErrorType.IndexPlayedOn);
}
// Play
plays[index] = CurrentPlayer;
// Chack if current player wins
foreach (var winLine in Winners)
{
if (plays[winLine[0]] == GamePlay.None || plays[winLine[1]] == GamePlay.None || plays[winLine[2]] == GamePlay.None)
{
continue;
}
if (plays[winLine[0]] == plays[winLine[1]] && plays[winLine[1]] == plays[winLine[2]])
{
Winning = new GameWin(CurrentPlayer, winLine);
IsGameOver = true;
Played?.Invoke(this, EventArgs.Empty);
GameOver?.Invoke(this, new GameOverEventArgs(Winning));
return;
}
}
// Chack if game is over with no winner
if (!plays.Contains(GamePlay.None) ||
(!plays.Select((value, i) => new { value, index = i })
.Where((play) => Array.IndexOf(new int[] { 0, 1, 2, 6, 7, 8 }, play.index) > -1)
.Select(p => p.value).Contains(GamePlay.None) &&
plays[0] == plays[2] && plays[2] == plays[7] &&
plays[1] == plays[6] && plays[6] == plays[8]) ||
(!plays.Select((value, i) => new { value, index = i })
.Where((play) => Array.IndexOf(new int[] { 0, 2, 3, 5, 6, 8 }, play.index) > -1)
.Select(p => p.value).Contains(GamePlay.None) &&
plays[0] == plays[5] && plays[5] == plays[6] &&
plays[2] == plays[3] && plays[3] == plays[8]))
{
Winning = new GameWin(GamePlay.None, null);
IsGameOver = true;
Played?.Invoke(this, EventArgs.Empty);
GameOver?.Invoke(this, new GameOverEventArgs(Winning));
return;
}
Played?.Invoke(this, EventArgs.Empty);
// If not over get ready for next round
CurrentPlayer = (GamePlay)((int)CurrentPlayer % 2 + 1);
// Auto play if only one left
if (plays.Where((p) => p == GamePlay.None).Count() == 1)
{
Play(plays.IndexOf(GamePlay.None));
}
}