public SimplexNoise(int seed)
{
_seed = seed;
hash = new XXHash(seed);
int i, j, k;
for (i = 0; i < 256; i++)
{
perm[i] = i;
}
while (--i != 0)
{
k = perm[i];
j = hash.Range(0, 256, i);
perm[i] = perm[j];
perm[j] = k;
}
for (i = 0; i < 256; i++)
{
perm[256 + i] = perm[i];
}
}
public QualitativeNoise(int seed)
{
_seed = seed;
hash = new XXHash(seed);
int i, j, k;
for (i = 0; i < B; i++)
{
m_perm[i] = i;
}
while (--i != 0)
{
k = m_perm[i];
j = hash.Range(0, B, i);
m_perm[i] = m_perm[j];
m_perm[j] = k;
}
for (i = 0; i < B; i++)
{
m_perm[B + i] = m_perm[i];
}
}