public bool Add(IChessBoardPiece piece, int xCoordinate, int yCoordinate, PieceColor pieceColor)
{
// chck if play board is ok with this new position
if (!IsLegalBoardPosition(xCoordinate, yCoordinate))
{
return(false);
}
// is the position already occupied?
if (places[xCoordinate, yCoordinate].Allowed &&
places[xCoordinate, yCoordinate].Piece != null)
{
return(false);
}
// assign the new chess piece to the desired position
places[xCoordinate, yCoordinate].Piece = piece;
// link the piece to the chessboard and position
piece.ChessBoard = this;
piece.XCoordinate = xCoordinate;
piece.YCoordinate = yCoordinate;
return(true);
// should we check if we need to unassign the old position from the board?
}
public bool MovePiece(int xCoordinate, int yCoordinate, int newX, int newY)
{
// check with the board if the new position is valid
if (!IsLegalBoardPosition(newX, newY))
{
return(false);
}
IChessBoardPiece piece = places[xCoordinate, yCoordinate].Piece;
var result = Add(piece, newX, newY, piece.PieceColor);
// unassign the old position for this piece
places[xCoordinate, yCoordinate].Piece = null;
return(result);
}