public static Dictionary <Direction, ulong> GetPossibleMoves(this ulong fld)
{
var retVal = new Dictionary <Direction, ulong>(4);
foreach (var d in XT.EnumVals <Direction>())
{
var val = fld.Slide(d);
if (val != fld)
{
retVal[d] = val;
}
}
return(retVal);
}
public static IEnumerable <Direction> PossibleMoves(this byte[,] squares)
{
return(XT.EnumVals <Direction>().Where(d => !squares.Slide(d).IsEqualTo(squares)));
}
public static IEnumerable <Direction> PossibleDirections(this ulong fld) => XT.EnumVals <Direction>().Where(d => fld.Slide(d) != fld);