59 lines
1.1 KiB
C++
59 lines
1.1 KiB
C++
#include "cRandom.hpp"
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/*** ANSI C Header Files ***/
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#include <stdlib.h>
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#include <time.h>
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using MathEngine::cRandom;
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/*static*/ cRandom* cRandom::sp_inst = nullptr;
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cRandom::cRandom()
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{
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Setup();
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}
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cRandom::~cRandom()
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{}
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/// Functions
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/*static*/ cRandom& cRandom::Inst()
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{
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if (sp_inst == nullptr)
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sp_inst = new cRandom();
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return *sp_inst;
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}
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/*static*/ void cRandom::Delete()
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{
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delete sp_inst;
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sp_inst = nullptr;
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}
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const bool cRandom::Setup() const
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{
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bool rtn = false;
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srand((unsigned int)time(nullptr));
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return rtn = true;
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}
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const unsigned long int cRandom::Rand( const unsigned long int max, const unsigned long int min /*= 0*/ ) const
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{
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return (unsigned long int)rand() % max + min;
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}
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const float cRandom::Rand( const float max, const float min /*= 0.0f*/ ) const
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{
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return (float)((max - min) * rand()/(float)RAND_MAX + min);
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}
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const double cRandom::Rand(const double max, const double min) const
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{
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return (double)((max - min) * rand() / (double)RAND_MAX + min);
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}
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const long double cRandom::Rand(const long double max, const long double min) const
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{
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return (long double)((max - min) * rand() / (long double)RAND_MAX + min);
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}
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