source-engine/mathlib/halton.cpp
FluorescentCIAAfricanAmerican 3bf9df6b27 1
2020-04-22 12:56:21 -04:00

31 lines
558 B
C++

//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
//=====================================================================================//
#include <halton.h>
HaltonSequenceGenerator_t::HaltonSequenceGenerator_t(int b)
{
base=b;
fbase=(float) b;
seed=1;
}
float HaltonSequenceGenerator_t::GetElement(int elem)
{
int tmpseed=seed;
float ret=0.0;
float base_inv=1.0/fbase;
while(tmpseed)
{
int dig=tmpseed % base;
ret+=((float) dig)*base_inv;
base_inv/=fbase;
tmpseed/=base;
}
return ret;
}