public override List <Tuple <int, int> > GetPossibleMoves(ChessBoard cb)
{
Tuple <int, int> position = Position;
List <Tuple <int, int> >
nonCaptureMoves = new List <Tuple <int, int> >(),
captureMoves = new List <Tuple <int, int> >(),
allMoves = new List <Tuple <int, int> >();
bool isPlayerBlack = (GetPlayer() == Player.Black);
if (StartingPosition.Equals(position) &&
cb.GetPieceInPosition(new Tuple <int, int>(position.Item1 + (isPlayerBlack ? 1 : -1), position.Item2)) ==
null)
{
nonCaptureMoves.Add(new Tuple <int, int>(position.Item1 + (isPlayerBlack ? 2 : -2),
position.Item2)); // moveForwardDouble
}
nonCaptureMoves.Add(new Tuple <int, int>(position.Item1 + (isPlayerBlack ? 1 : -1),
position.Item2)); // moveForward
captureMoves.Add(new Tuple <int, int>(position.Item1 + (isPlayerBlack ? 1 : -1),
position.Item2 + 1)); // moveCaptureRight
captureMoves.Add(new Tuple <int, int>(position.Item1 + (isPlayerBlack ? 1 : -1),
position.Item2 - 1)); // moveCaptureLeft
foreach (Tuple <int, int> move in nonCaptureMoves)
{
if (cb.GetPieceInPosition(move) == null)
{
allMoves.Add(move);
}
}
foreach (Tuple <int, int> move in captureMoves)
{
ChessPiece capturedPiece = cb.GetPieceInPosition(move);
if (capturedPiece != null && capturedPiece.GetPlayer() != GetPlayer())
{
allMoves.Add(move);
}
}
return(allMoves);
}
