#include "includes.h"
#pragma once

double UnitRandom ();    
double RangeRandom (double fLow, double fHigh); 
double SymmetricRandom ();

class Halton
{
	float value;
	float inv_base;

public:
	Halton(long i,int base)
	{
		Number(i,base);
	}

	void Number(long i,int base)
	{
		float f=inv_base=1.0/base;
		value=0.0;
		while(i>0)
		{
			value+=f*(double)(i%base);
			i/=base;
			f*=inv_base;
		}
	}
	void Next()
	{
		float r=1.0-value-0.0000001;
		if(inv_base<r)
			value+=inv_base;
		else
		{
			float h=inv_base,hh;
			do{hh=h;h*=inv_base;}while(h>=r);
			value+=hh+h-1.0;
		}
	}
	float Get(){return value;}
	float Random(){
		float n=Get();
		n=2*n-1;
		Next();
		return n;}
};