private List <Square> GetSquaresCanAttack(Board board, int moveDirection)
{
Square mySquare = board.FindPiece(this);
List <Square> availableMoves = new List <Square>();
for (int colOffset = -1; colOffset < 2; colOffset += 2)
{
Square captureSquare = mySquare + new MoveOffset(moveDirection, colOffset);
if (BoardQuery.IsWithinBounds(captureSquare) &&
BoardQuery.IsOppositeColourOnSquares(board, mySquare, captureSquare))
{
availableMoves.Add(captureSquare);
}
}
return(availableMoves);
}
private List <Square> GetSquaresEnPassant(Board board, int moveDirection)
{
Square mySquare = board.FindPiece(this);
List <Square> availableMoves = new List <Square>();
for (int colOffset = -1; colOffset < 2; colOffset += 2)
{
Square sidewaysSquare = mySquare + new MoveOffset(0, colOffset);
if (BoardQuery.IsWithinBounds(sidewaysSquare) &&
BoardQuery.IsOppositeColourOnSquares(board, mySquare, sidewaysSquare))
{
Square previousSquare = sidewaysSquare + new MoveOffset(moveDirection * 2, 0);
if (board.PreviousBoard[previousSquare.Row, previousSquare.Col] == board.GetPiece(sidewaysSquare))
{
availableMoves.Add(sidewaysSquare + new MoveOffset(moveDirection, 0));
}
}
}
return(availableMoves);
}