public override bool CanMove(FigurePosition to, BoardState boardState, bool afterMove = false)
{
if (Math.Abs(to.Y - Position.Y) > 1)
{
return(false);
}
if (Math.Abs(to.X - Position.X) > 2)
{
return(false);
}
if (Math.Abs(to.X - Position.X) == 2) //castleing??
{
var vectorsToCheck = new List <Vector>();
if (to.X > Position.X)
{
if (!boardState.GetCastling(Color, CastlingTypes.Kingside))
{
return(false);
}
vectorsToCheck.Add(new Vector(1, 0));
}
else
{
if (!boardState.GetCastling(Color, CastlingTypes.Queenside))
{
return(false);
}
vectorsToCheck.Add(new Vector(-1, 0));
vectorsToCheck.Add(new Vector(-2, 0));
}
foreach (var vector in vectorsToCheck)
{
if (boardState.IsPositionOccupied(Position + vector, afterMove))
{
return(false);
}
/* Cell is attacked? */
if (boardState.CanAttackOnCopyBoard(Position + vector)) //king can be attacked at move?
{
return(false);
}
}
if (boardState.IsPositionOccupied(to, afterMove))
{
return(false);
}
}
return(true);
}
