public static List <AttackedSquare> GetDiagonalLine(GameState gameState, Square square, Piece attackingPiece, DiagonalDirection direction)
{
var attacks = new List <AttackedSquare>();
var diagonalLine = getIteratorByDirectionEnum(direction);
var position = square.Index;
var attackPosition = square.Index;
do
{
if (!canDoDiagonalsFromStartPosition(position, diagonalLine))
{
break;
}
attackPosition = attackPosition + diagonalLine;
var moveViability = GeneralEngine.DetermineMoveViability(gameState, attackingPiece, attackPosition);
//I don't think either of these conditions should occur.
if (!moveViability.IsValidCoordinate || moveViability.SquareToAdd == null)
{
continue;
}
var attack = new AttackedSquare(square, moveViability.SquareToAdd, isProtecting: moveViability.IsTeamPiece);
attacks.Add(attack);
if (moveViability.SquareToAdd.Occupied)
{
break;
}
} while (isValidDiagonalCoordinate(attackPosition));
return(attacks);
}
private static bool isValidDiagonalCoordinate(int position)
{
if (!GeneralEngine.IsValidCoordinate(position))
{
return(false);
}
if (position % 8 == 0 || position % 8 == 7)
{
return(false);
}
if (position < 7 || position > 56)
{
return(false);
}
return(true);
}
public static MoveViability DetermineMoveViability(GameState gameState, Piece attacker, int position)
{
if (!GeneralEngine.IsValidCoordinate(position))
{
return(new MoveViability(false, false, null));
}
var square = gameState.Squares.GetSquare(position);
if (!square.Occupied)
{
return(new MoveViability(true, false, square));
}
var blockingPiece = square.Piece;
var isTeamPiece = GeneralEngine.IsTeamPiece(attacker.Color, blockingPiece);
if (!isTeamPiece)
{
return(new MoveViability(true, true, square));
}
return(new MoveViability(true, false, square));
}
