static void Main(string[] args)
{
byte[] seed;
if (args.Length > 0)
{
string hexSeed = args[0];
if (hexSeed.Length != 64 || hexSeed.Any(c => !"0123456789abcdef".Contains(c)))
{
Console.WriteLine("Invalid seed value (expected 64 hex characters)");
return;
}
seed = BinaryUtils.StringToByteArray(hexSeed);
}
else
{
seed = BinaryUtils.GenerateSeed(Environment.TickCount);
}
try
{
var random = new Xoshiro256Plus();
var factory = new ProgramFactory(ProgramOptions.FromXml(), random);
var p = factory.GenProgram(seed);
p.WriteTo(Console.Out);
Console.WriteLine($"// {random.Counter} random numbers used");
}
catch (Exception e)
{
Console.WriteLine(e);
}
}
public static unsafe byte[] GenerateSeed(long init)
{
ulong smallSeed = (ulong)init;
byte[] bigSeed = new byte[4 * sizeof(ulong)];
fixed(byte *buffer = bigSeed)
{
ulong *s = (ulong *)buffer;
s[0] = Xoshiro256Plus.SplitMix64(ref smallSeed);
s[1] = Xoshiro256Plus.SplitMix64(ref smallSeed);
s[2] = Xoshiro256Plus.SplitMix64(ref smallSeed);
s[3] = Xoshiro256Plus.SplitMix64(ref smallSeed);
}
return(bigSeed);
}