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Add API for restoring PseudoRandom and PcgRandom state (#14123)

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sfence 2024-01-16 23:20:52 +01:00 • committed by GitHub
parent 8093044f07
commit ceaa7e2fb0
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9 changed files with 155 additions and 29 deletions
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12
src/noise.cpp
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@ -152,6 +152,18 @@ s32 PcgRandom::randNormalDist(s32 min, s32 max, int num_trials)
return myround((float)accum / num_trials);
}
void PcgRandom::getState(u64 state[2]) const
{
state[0] = m_state;
state[1] = m_inc;
}
void PcgRandom::setState(const u64 state[2])
{
m_state = state[0];
m_inc = state[1];
}
///////////////////////////////////////////////////////////////////////////////
float noise2d(int x, int y, s32 seed)