private static bool captureKernel(BoardBase board, List <Tuple <byte, byte> > captureList, byte row, byte col, WColor color)
{
WColor flipColor = ColorUtils.Flip(color);
if (!BoardUtil.CheckBounds(board.Size, row, col))
{
return(true);
}
else if (board[row, col] == flipColor)
{
return(true);
}
else if (board.GetMark(row, col) == Mark.MARK1)
{
return(true);
}
else if (board[row, col] == WColor.EMPTY)
{
return(false);
}
else
{
captureList.Add(new Tuple <byte, byte>(row, col));
board.Mark(row, col, Mark.MARK1);
return(
captureKernel(board, captureList, (byte)(row + 1), col, color) &&
captureKernel(board, captureList, (byte)(row - 1), col, color) &&
captureKernel(board, captureList, row, (byte)(col + 1), color) &&
captureKernel(board, captureList, row, (byte)(col - 1), color)
);
}
}
public bool Play(byte row, byte col)
{
if (!BoardUtil.CheckBounds(_size, row, col))
{
return(false);
}
if (_currentStatus.Board.Get(row, col) != WColor.EMPTY)
{
return(false);
}
else
{
BoardStatus temptNew = _currentStatus;
if (!MoveUtils.Move(ref temptNew, row, col))
{
return(false);
}
if (!boardHistory.Contains(temptNew.ToString()))
{
boardHistory.Add(temptNew.ToString());
_currentStatus = temptNew;
_LatestMove = new Tuple <byte, byte>(row, col);
_numMoves++;
return(true);
}
return(false);
}
}
private IEnumerable <Tuple <int, int> > LoopNeighbor(int i, int j, int size)
{
for (int ii = -1; ii <= 1; ii++)
{
for (int jj = -1; jj <= 1; jj++)
{
if (ii * jj != 0)
{
if (BoardUtil.CheckBounds(size, i + ii, j + jj))
{
yield return(new Tuple <int, int>(i + ii, j + jj));
}
}
}
}
}