public bool IsSatisfied(PieceMovement input)
{
if (PositionComparer.FileDistanceAbs(input.From, input.To) == 0)
{
int rankDistance = PositionComparer.RankDistance(input.From, input.To);
if (input.Piece.Color == PieceColor.White &&
rankDistance < 0 && rankDistance >= (input.Piece.HasMoved ? -1 : -2))
{
return(true);
}
if (input.Piece.Color == PieceColor.Black &&
rankDistance > 0 && rankDistance <= (input.Piece.HasMoved ? 1 : 2))
{
return(true);
}
}
else if (PositionComparer.FileDistanceAbs(input.From, input.To) == 1 &&
PositionComparer.RankDistanceAbs(input.From, input.To) == 1)
{
Square squareDestination = _board.GetSquare(input.To.Id);
if (!squareDestination.IsEmpty && squareDestination.Piece.Color != input.Piece.Color)
{
return(true);
}
}
return(false);
}
public bool IsSatisfied(PieceMovement input)
{
if (PositionComparer.FileDistanceAbs(input.From, input.To) == PositionComparer.RankDistanceAbs(input.From, input.To))
{
return(true);
}
return(false);
}
public bool IsSatisfied(PieceMovement candidate)
{
if (PositionComparer.FileDistanceAbs(candidate.From, candidate.To) <= 1 &&
PositionComparer.RankDistanceAbs(candidate.From, candidate.To) <= 1)
{
return(true);
}
else
{
CastlingMovementSpecification castlingMovementSpecification = CastlingMovementSpecification.Create(_board);
return(castlingMovementSpecification.IsSatisfied(candidate));
}
}
public bool IsSatisfied(PieceMovement candidate)
{
if (PositionComparer.FileDistanceAbs(candidate.From, candidate.To) <= 1 &&
PositionComparer.RankDistanceAbs(candidate.From, candidate.To) <= 1)
{
return(false);
}
if (candidate.From.FileIndex == candidate.To.FileIndex ||
candidate.From.RankIndex == candidate.To.RankIndex)
{
return(StraightMovementIsSatisfied(candidate));
}
else
{
return(DiagonalMovementIsSatisfied(candidate));
}
}