75 lines
1.3 KiB
C++
75 lines
1.3 KiB
C++
#ifndef __derand_inl__
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#define __derand_inl__
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#include <ctime>
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#if !(defined(__derand_h__))
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# error "derand.inl should only be included by derand.h"
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#endif
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inline DE::Random::Random()
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{
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Seed(static_cast<u32>(clock()));
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}
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inline void DE::Random::Seed(u32 seed)
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{
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this->seed = seed;
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}
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inline DE::u32 DE::Random::Rand()
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{
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seed = ( (seed * DE::Random::MULTIPLIER) + DE::Random::INCREMENT );
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seed %= DE::Random::MODULUS;
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return seed;
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}
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inline DE::u32 DE::Random::operator()()
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{
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return this->Rand();
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}
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inline float DE::Random::RandFloat()
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{
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return (float)Rand() / (float)DE::Random::U32_MAX;
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}
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inline float DE::Random::RandFloat(float min, float max)
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{
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return ( RandFloat() * (max - min) + min );
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}
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inline double DE::Random::RandDouble()
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{
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return (double)Rand() / (double)DE::Random::U32_MAX;
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}
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inline double DE::Random::RandDouble(double min, double max)
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{
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return ( RandDouble() * (max - min) + min );
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}
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inline DE::u32 DE::Random::RandU32()
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{
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return Rand();
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}
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inline DE::u32 DE::Random::RandU32(DE::u32 min, DE::u32 max)
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{
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return ( ( Rand() % (max - min) ) + min );
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}
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inline DE::s32 DE::Random::RandS32()
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{
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return (DE::s32)Rand();
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}
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inline DE::s32 DE::Random::RandS32(DE::s32 min, DE::s32 max)
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{
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return (DE::s32)( ( Rand() % (max - min) ) + min );
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}
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#endif // __derand_inl__
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