internal static Delta DecodeNd(int nd)
{
Requires.Range(nd, nameof(nd), 0, 26);
int dx = (nd / 9) % 3 - 1;
int dy = (nd / 3) % 3 - 1;
int dz = (nd / 1) % 3 - 1;
Delta decoded = Delta.Of(dx, dy, dz);
Requires.Arg(decoded.IsNd(), nameof(nd),
$"{nd} is not a valid encoding of a near difference.");
return(decoded);
}
public static Command Fission(Delta nd, int m)
{
Requires.Arg(nd.IsNd(), nameof(nd), "Argument is not a valid nd.");
Requires.Range(m, nameof(m), 0, 255);
return(new FissionCommand(nd, m));
}
public static Command Fill(Delta nd)
{
Requires.Arg(nd.IsNd(), nameof(nd), "Argument is not a valid nd.");
return(new FillCommand(nd));
}