public void MovePiece(CellId source, CellId target)
{
if (!IsValidMove(source, target))
{
throw new InvalidOperationException("Invalid move!");
}
// Figure out if it is a castle operation.
//
var sourceCell = _chessboard.GetCell(source);
var targetCell = _chessboard.GetCell(target);
// We know it is a valid move. We just have to identify if it is a castle
// operation.
//
if (sourceCell.PieceType == EChessPieceType.King &&
targetCell.PieceType == EChessPieceType.Rook &&
sourceCell.PieceColor == targetCell.PieceColor)
{
_chessboard.SwapPiece(source, target);
}
else
{
_chessboard.MovePiece(source, target);
}
nextTurn();
}
public bool IsValidMove(CellId source, CellId target, IChessBoard board)
{
var sourceCell = board.GetCell(source);
var targetCell = board.GetCell(target);
return(IsValidMove(sourceCell, targetCell, board));
}
public IReadOnlyList <CellId> ValidMovesForCell(CellId cellId, IChessBoard board)
{
var validMoveList = new List <CellId>();
var source = board.GetCell(cellId);
for (int row = 0; row < board.NumRows; row++)
{
for (int col = 0; col < board.NumCols; col++)
{
// Figure out the status of the cell.
//
var target = board.GetCell(CellId.Create(row, col));
if (IsValidMove(source, target, board))
{
validMoveList.Add(CellId.Create(row, col));
}
}
}
return(validMoveList);
}
public void MovePiece(CellId source, CellId target)
{
if (!IsValidMove(source, target))
{
throw new InvalidOperationException("Invalid move!");
}
// Figure out if it is a castle operation.
//
var sourceCell = _chessboard.GetCell(source);
var targetCell = _chessboard.GetCell(target);
// We know it is a valid move. We just have to identify if it is a castle
// operation.
//
if (sourceCell.PieceType == EChessPieceType.King &&
targetCell.PieceType == EChessPieceType.Rook &&
sourceCell.PieceColor == targetCell.PieceColor)
{
_chessboard.SwapPiece(source, target);
}
else
{
if (targetCell.PieceColor != sourceCell.PieceColor) // The player captured a piece
{
PieceCaptured(this, new PieceCapturedEventArgs(targetCell.PieceType, targetCell.PieceColor));
// Check if the king was captured.
//
if (targetCell.PieceType == EChessPieceType.King)
{
GameFinished(this, new GameEndedEventArgs(ActivePlayer));
}
}
_chessboard.MovePiece(source, target);
}
nextTurn();
}
