/// <summary>
/// Expand 32 bit seed to 64 bit deterministically, ensuring there are bits set in the upper part
/// </summary>
public static ulong ExpandSeed(uint seed)
{
unchecked
{
ulong upper = (ulong)HashUtil.XorFold64To32(seed * 7199369) << 32;
return(((ulong)seed | upper) ^ 0b11100000_01111101_01000011_11110110_01001111_10100000_01100000_10011011UL);
}
}
static RandomSeed()
{
s_seedIncrement = 997;
int sysSeed = (int)HashUtil.XorFold64To32((ulong)Stopwatch.GetTimestamp() ^ (ulong)Environment.TickCount);
s_systemRandom = new Random(sysSeed);
}
public static uint Hash32(ulong one, ulong two)
{
return(HashUtil.XorFold64To32(Hash64(one, two)));
}
public static uint Hash32(float x, float y)
{
return(HashUtil.XorFold64To32(Hash64(x, y)));
}