random.hpp

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#pragma once
#ifndef _RANDOM_HPP
#define _RANDOM_HPP

#include "settings.hpp"


class Random
{
public:
    Random();
    Random(unsigned long _init);
    ~Random();

    void next();

    template<typename T>
    inline T rand();
    inline int rand();
    template<typename T>
    inline T rand(T _max);
    template<typename T>
    inline T rand(T _min, T _max);


    inline static void Next();

    template<typename T>
    inline static T Rand();
    inline static int Rand();
    template<typename T>
    inline static T Rand(T _max);
    template<typename T>
    inline static T Rand(T _min, T _max);

private:
    static Random   m_RandomGenerator;
    unsigned long   m_RandomSeed;
};


template<typename T>
inline T Random::rand()
{
    next();
    return static_cast<T>(m_RandomSeed);
}

inline int Random::rand()
{
    return rand<int>();
}

template<typename T>
inline T Random::rand(T _max)
{
    return rand(static_cast<T>(0), _max);
}

template<typename T>
inline T Random::rand(T _min, T _max)
{
    return static_cast<T>(_min + ((rand<int>() - 1) / 2147483646.0) * (_max - _min));
}



inline void Random::Next()
{
    m_RandomGenerator.next();
}

template<typename T>
inline T Random::Rand()
{
    return m_RandomGenerator.rand<T>();
}

inline int Random::Rand()
{
    return m_RandomGenerator.rand<int>();
}

template<typename T>
inline T Random::Rand(T _max)
{
    return m_RandomGenerator.rand(_max);
}

template<typename T>
inline T Random::Rand(T _min, T _max)
{
    return m_RandomGenerator.rand(_min, _max);
}


#endif