public Move CopyMove()
{
PiecePossibleMove piecePossibleMove = new PiecePossibleMove(new Point(_move.MoveToPosition.X, _move.MoveToPosition.Y), new Point(_move.FromPosition.X, _move.FromPosition.Y))
{
IsCastlingMove = _move.IsCastlingMove,
CastlingRook = _move.CastlingRook,
RookPosition = new Point(_move.RookPosition.X, _move.RookPosition.Y)
};
return(new Move(piecePossibleMove, _actualPiece, _takenPiece, _promotionPiece));
}
public Move(PiecePossibleMove move, BasePiece piece, BasePiece takenPiece = null, BasePiece promotionPiece = null)
{
_move = move;
_fromPosition = (int)piece.Position.X + (int)piece.Position.Y * 8;
_toPosition = (int)move.MoveToPosition.X + (int)move.MoveToPosition.Y * 8;
_actualPiece = piece.CopyPiece();
_isPieceTaken = takenPiece == null ? false : true;
_takenPiece = takenPiece == null ? null : takenPiece.CopyPiece();
_takenPiecePosition = takenPiece == null ? 0 : (int)takenPiece.Position.X + (int)takenPiece.Position.Y * 8;
_isCastling = move.IsCastlingMove;
_castlingRook = move.IsCastlingMove ? move.CastlingRook.CopyPiece() : null;
_castlingRookFromPosition = move.IsCastlingMove ? (int)move.CastlingRook.Position.X + (int)move.CastlingRook.Position.Y * 8 : 0;
_castlingRookToPosition = move.IsCastlingMove ? (int)move.RookPosition.X + (int)move.RookPosition.Y * 8 : 0;
_isPromotionMove = promotionPiece == null ? false : true;
_promotionPiece = promotionPiece == null ? null : promotionPiece.CopyPiece();
_hasMadeMove = true;
}
public bool IsValidMove(PiecePossibleMove move, bool isWhite)
{
Point?location = FindKingLocation(isWhite);
if (location.HasValue)
{
Point kingLocation = location.Value;
if (move.IsCastlingMove)
{
if (move.RookPosition.X == 0)
{
for (int x = 4; x > 1; x--)
{
if (IsAttacked(new Point(x, kingLocation.Y), isWhite))
{
return(false);
}
}
return(true);
}
else
{
for (int x = 4; x < 7; x++)
{
if (IsAttacked(new Point(x, kingLocation.Y), isWhite))
{
return(false);
}
}
return(true);
}
}
if (IsAttacked(kingLocation, isWhite))
{
return(false);
}
else
{
return(true);
}
}
else
{
return(true);
}
}
/// <summary>
/// Makes a move on chess board
/// </summary>
/// <returns></returns>
public void MakeMove(int index, bool useLog)
{
if (CurrentPiece != null)
{
AssignCellBlackBorder();
PiecePossibleMove move = CurrentPiecePossibleMoves.Where(m => (int)(m.MoveToPosition.Y * 8 + m.MoveToPosition.X) == index).Single();
BasePiece promotionPiece = null;
if (CurrentPiece is Pawn && (Board[index].Position.Y == 0 || Board[index].Position.Y == 7))
{
PromotionWindow dialog = new PromotionWindow(CurrentPiece.IsWhite);
if (dialog.ShowDialog() == true)
{
promotionPiece = dialog.SelectedPiece;
}
}
Move madeMove = new Move(move, CurrentPiece, Board[index].Piece, promotionPiece);
HistoryOfMoves.Add(madeMove);
madeMove.MakeMove(ref Board);
LastMadeMove = madeMove.CopyMove();
if (madeMove.IsCastlingMove)
{
hasCastled[madeMove.IsWhiteMove] = true;
}
bool isWhite = CurrentPiece.IsWhite;
CurrentPiece = null;
bool isGameOver = IsGameOver(!isWhite);
bool isChecked = IsAttacked((Point)FindKingLocation(!isWhite), !isWhite);
if (isGameOver)
{
MessageBox.Show("Game over! " + (isWhite ? "White" : "Black") + " wins!");
GameFinished = true;
}
if (useLog)
{
WriteLogMove(isGameOver, isChecked);
}
}
}
public Move MakeFakeMove(PiecePossibleMove move, BasePiece actualPiece)
{
int index = (int)(move.MoveToPosition.Y * 8 + move.MoveToPosition.X);
Move madeMove;
//TODO if piece is a pawn then promote to queen if it's at row 0 or row 7
if (actualPiece is Pawn && (move.MoveToPosition.Y == 0 || move.MoveToPosition.Y == 7))
{
madeMove = new Move(move, actualPiece, Board[index].Piece, new Queen((int)move.MoveToPosition.X, (int)move.MoveToPosition.Y, actualPiece.IsWhite));
}
else
{
madeMove = new Move(move, actualPiece, Board[index].Piece);
}
HistoryOfMoves.Add(madeMove);
madeMove.MakeMove(ref Board);
if (madeMove.IsCastlingMove)
{
hasCastled[madeMove.IsWhiteMove] = true;
}
LastMadeMove = madeMove.CopyMove();
return(madeMove);
}