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Refactor and rename some things around Misc::Rng

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ζeh Matt 2022-03-06 15:58:16 +02:00
parent 9396cc7592
commit d83a381f79
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5 changed files with 57 additions and 77 deletions
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38
components/misc/rng.cpp
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@ -3,50 +3,42 @@
#include <chrono>
#include <random>
namespace
namespace Misc::Rng
{
Misc::Rng::Seed sSeed;
}
static Generator sGenerator;
namespace Misc
{
Rng::Seed::Seed(unsigned int seed)
Generator& getGenerator()
{
mGenerator.seed(seed);
return sGenerator;
}
Rng::Seed& Rng::getSeed()
void init(unsigned int seed)
{
return sSeed;
sGenerator.seed(seed);
}
void Rng::init(unsigned int seed)
float rollProbability(Generator& prng)
{
sSeed.mGenerator.seed(seed);
return std::uniform_real_distribution<float>(0, 1 - std::numeric_limits<float>::epsilon())(prng);
}
float Rng::rollProbability(Seed& seed)
float rollClosedProbability(Generator& prng)
{
return std::uniform_real_distribution<float>(0, 1 - std::numeric_limits<float>::epsilon())(seed.mGenerator);
return std::uniform_real_distribution<float>(0, 1)(prng);
}
float Rng::rollClosedProbability(Seed& seed)
int rollDice(int max, Generator& prng)
{
return std::uniform_real_distribution<float>(0, 1)(seed.mGenerator);
return max > 0 ? std::uniform_int_distribution<int>(0, max - 1)(prng) : 0;
}
int Rng::rollDice(int max, Seed& seed)
{
return max > 0 ? std::uniform_int_distribution<int>(0, max - 1)(seed.mGenerator) : 0;
}
unsigned int Rng::generateDefaultSeed()
unsigned int generateDefaultSeed()
{
return static_cast<unsigned int>(std::chrono::high_resolution_clock::now().time_since_epoch().count());
}
float Rng::deviate(float mean, float deviation, Seed& seed)
float deviate(float mean, float deviation, Generator& prng)
{
return std::uniform_real_distribution<float>(mean - deviation, mean + deviation)(seed.mGenerator);
return std::uniform_real_distribution<float>(mean - deviation, mean + deviation)(prng);
}
}