protected virtual void UseGameCreationData(GameCreationData data)
{
Board = CloneBoard(data.Board);
WhoseTurn = data.WhoseTurn;
ChessPiece e1 = GetPieceAt(ChessFile.E, 1);
ChessPiece e8 = GetPieceAt(ChessFile.E, 8);
ChessPiece a1 = GetPieceAt(ChessFile.A, 1);
ChessPiece h1 = GetPieceAt(ChessFile.H, 1);
ChessPiece a8 = GetPieceAt(ChessFile.A, 8);
ChessPiece h8 = GetPieceAt(ChessFile.H, 8);
CanBlackCastleKingSide = CanBlackCastleQueenSide = CanWhiteCastleKingSide = CanWhiteCastleQueenSide = CastlingCanBeLegal;
if (CastlingCanBeLegal)
{
if (!(e1 is King) || e1.Owner != ChessPlayer.White)
{
CanWhiteCastleKingSide = CanWhiteCastleQueenSide = false;
}
if (!(e8 is King) || e8.Owner != ChessPlayer.Black)
{
CanBlackCastleKingSide = CanBlackCastleQueenSide = false;
}
if (!(a1 is Rook) || a1.Owner != ChessPlayer.White || !data.CanWhiteCastleQueenSide)
{
CanWhiteCastleQueenSide = false;
}
if (!(h1 is Rook) || h1.Owner != ChessPlayer.White || !data.CanWhiteCastleKingSide)
{
CanWhiteCastleKingSide = false;
}
if (!(a8 is Rook) || a8.Owner != ChessPlayer.Black || !data.CanBlackCastleQueenSide)
{
CanBlackCastleQueenSide = false;
}
if (!(h8 is Rook) || h8.Owner != ChessPlayer.Black || !data.CanBlackCastleKingSide)
{
CanBlackCastleKingSide = false;
}
}
if (data.EnPassant != null)
{
DetailedMove latestMove = new DetailedMove(new Move(new BoardPosition(data.EnPassant.File, data.WhoseTurn == ChessPlayer.White ? 7 : 2),
new BoardPosition(data.EnPassant.File, data.WhoseTurn == ChessPlayer.White ? 5 : 4),
ChessUtility.GetOpponentOf(data.WhoseTurn)),
new Pawn(ChessUtility.GetOpponentOf(data.WhoseTurn)),
false,
CastlingType.None);
_moves.Add(latestMove);
}
_halfMoveClock = data.HalfMoveClock;
_fullMoveNumber = data.FullMoveNumber;
}
public virtual MoveType ApplyMove(Move move, bool alreadyValidated)
{
ChessUtility.ThrowIfNull(move, "move");
if (!alreadyValidated && !IsValidMove(move))
{
return(MoveType.Invalid);
}
MoveType type = MoveType.Move;
ChessPiece movingPiece = GetPieceAt(move.OriginalPosition.File, move.OriginalPosition.Rank);
ChessPiece capturedPiece = GetPieceAt(move.NewPosition.File, move.NewPosition.Rank);
ChessPiece newPiece = movingPiece;
bool isCapture = capturedPiece != null;
CastlingType castle = CastlingType.None;
if (movingPiece is Pawn)
{
_halfMoveClock = 0;
BoardDistance pd = new BoardDistance(move.OriginalPosition, move.NewPosition);
if (pd.X == 1 && pd.Y == 1 && GetPieceAt(move.NewPosition) == null)
{ // en passant
isCapture = true;
SetPieceAt(move.NewPosition.File, move.OriginalPosition.Rank, null);
}
if (move.NewPosition.Rank == (move.Player == ChessPlayer.White ? 8 : 1))
{
newPiece = MapPgnCharToPiece(move.Promotion.Value, move.Player);
type |= MoveType.Promotion;
}
}
else if (movingPiece is King)
{
if (movingPiece.Owner == ChessPlayer.White)
{
CanWhiteCastleKingSide = CanWhiteCastleQueenSide = false;
}
else
{
CanBlackCastleKingSide = CanBlackCastleQueenSide = false;
}
if (new BoardDistance(move.OriginalPosition, move.NewPosition).X == 2 && CastlingCanBeLegal)
{
castle = ApplyCastle(move);
type |= MoveType.Castling;
}
}
else if (movingPiece is Rook)
{
if (move.Player == ChessPlayer.White)
{
if (move.OriginalPosition.File == ChessFile.A && move.OriginalPosition.Rank == 1)
{
CanWhiteCastleQueenSide = false;
}
else if (move.OriginalPosition.File == ChessFile.H && move.OriginalPosition.Rank == 1)
{
CanWhiteCastleKingSide = false;
}
}
else
{
if (move.OriginalPosition.File == ChessFile.A && move.OriginalPosition.Rank == 8)
{
CanBlackCastleQueenSide = false;
}
else if (move.OriginalPosition.File == ChessFile.H && move.OriginalPosition.Rank == 8)
{
CanBlackCastleKingSide = false;
}
}
}
if (isCapture)
{
type |= MoveType.Capture;
_halfMoveClock = 0;
if (move.NewPosition.File == ChessFile.A && move.NewPosition.Rank == 1)
{
CanWhiteCastleQueenSide = false;
}
else if (move.NewPosition.File == ChessFile.H && move.NewPosition.Rank == 1)
{
CanWhiteCastleKingSide = false;
}
else if (move.NewPosition.File == ChessFile.A && move.NewPosition.Rank == 8)
{
CanBlackCastleQueenSide = false;
}
else if (move.NewPosition.File == ChessFile.H && move.NewPosition.Rank == 8)
{
CanBlackCastleKingSide = false;
}
}
if (!isCapture && !(movingPiece is Pawn))
{
_halfMoveClock++;
if (_halfMoveClock >= 100)
{
fiftyMoves = true;
}
else
{
fiftyMoves = false;
}
}
if (move.Player == ChessPlayer.Black)
{
_fullMoveNumber++;
}
SetPieceAt(move.NewPosition.File, move.NewPosition.Rank, newPiece);
SetPieceAt(move.OriginalPosition.File, move.OriginalPosition.Rank, null);
WhoseTurn = ChessUtility.GetOpponentOf(move.Player);
_moves.Add(new DetailedMove(move, movingPiece, isCapture, castle));
_positions.Add(GetPosition());
return(type);
}
public virtual bool IsWinner(ChessPlayer player)
{
return(IsCheckmated(ChessUtility.GetOpponentOf(player)));
}