private IEnumerable<BoardPosition> GetBoardPieces(IVirtualBoard board, BoardPosition piece, MainWindow.Surround direction)
{
Func<BoardPosition, BoardPosition> dir = p =>
{
switch (direction)
{
case MainWindow.Surround.Top:
return board.TopOf(p);
case MainWindow.Surround.Right:
return board.RightOf(p);
case MainWindow.Surround.Bottom:
return board.BottomOf(p);
case MainWindow.Surround.Left:
return board.LeftOf(p);
default:
throw new ArgumentOutOfRangeException("direction");
}
};
var borderingPiece = dir(piece);
if (borderingPiece != null && borderingPiece.Piece.RootBoardPiece == piece.Piece.RootBoardPiece)
{
yield return borderingPiece;
var borderingPiece2 = dir(borderingPiece);
if (borderingPiece2 != null && borderingPiece2.Piece.RootBoardPiece == piece.Piece.RootBoardPiece)
yield return borderingPiece2;
}
}
private IEnumerable <BoardPosition> GetBoardPieces(IVirtualBoard board, BoardPosition piece, MainWindow.Surround direction)
{
Func <BoardPosition, BoardPosition> dir = p =>
{
switch (direction)
{
case MainWindow.Surround.Top:
return(board.TopOf(p));
case MainWindow.Surround.Right:
return(board.RightOf(p));
case MainWindow.Surround.Bottom:
return(board.BottomOf(p));
case MainWindow.Surround.Left:
return(board.LeftOf(p));
default:
throw new ArgumentOutOfRangeException("direction");
}
};
var borderingPiece = dir(piece);
if (borderingPiece != null && borderingPiece.Piece.RootBoardPiece == piece.Piece.RootBoardPiece)
{
yield return(borderingPiece);
var borderingPiece2 = dir(borderingPiece);
if (borderingPiece2 != null && borderingPiece2.Piece.RootBoardPiece == piece.Piece.RootBoardPiece)
{
yield return(borderingPiece2);
}
}
}
