2023-01-04 14:35:57 -05:00
|
|
|
/*
|
|
|
|
* Created by Brett on 04/01/23.
|
|
|
|
* Licensed under GNU General Public License V3.0
|
|
|
|
* See LICENSE file for license detail
|
|
|
|
*/
|
|
|
|
|
|
|
|
#ifndef BLT_RANDOM_H
|
|
|
|
#define BLT_RANDOM_H
|
|
|
|
|
|
|
|
#include <random>
|
|
|
|
|
2023-01-10 10:45:11 -05:00
|
|
|
namespace blt {
|
2023-01-04 14:35:57 -05:00
|
|
|
/**
|
|
|
|
* Creates a container class for generating random number distributions
|
|
|
|
* @tparam T numeric type
|
|
|
|
* @tparam dist std::uniform_real_distribution or std::uniform_int_distribution
|
|
|
|
*/
|
|
|
|
template<typename T, template<typename = T> typename dist = std::uniform_real_distribution>
|
2023-01-05 01:52:56 -05:00
|
|
|
class random {
|
2023-01-04 14:35:57 -05:00
|
|
|
private:
|
|
|
|
std::random_device rd; // obtain a random number from hardware
|
|
|
|
std::mt19937 gen;
|
|
|
|
dist<T>* distribution = nullptr;
|
|
|
|
public:
|
2023-01-05 01:52:56 -05:00
|
|
|
/**
|
|
|
|
* Construct the random number generator.
|
|
|
|
* @param min min value possible to generate. (default: 0)
|
|
|
|
* @param max max value possible to generate. (default: 1)
|
|
|
|
* @param seed seed to use in generating random values. (default: 0)
|
|
|
|
*/
|
|
|
|
explicit random(T min = (T)0, T max = (T)1, long seed = 0): gen(std::mt19937(seed)){
|
2023-01-04 14:35:57 -05:00
|
|
|
distribution = new dist(min, max);
|
|
|
|
}
|
2023-01-05 01:52:56 -05:00
|
|
|
/**
|
|
|
|
* Note the min/max are inclusive and defaults to a **uniform** distribution.
|
|
|
|
* @return random number between the defined min/max or the default of [0,1].
|
|
|
|
*/
|
2023-01-04 14:35:57 -05:00
|
|
|
T get(){
|
2023-01-04 14:38:17 -05:00
|
|
|
return (*distribution)(gen);
|
|
|
|
}
|
2023-01-05 01:52:56 -05:00
|
|
|
~random(){
|
2023-01-04 14:38:17 -05:00
|
|
|
delete distribution;
|
2023-01-04 14:35:57 -05:00
|
|
|
}
|
|
|
|
};
|
2023-03-05 12:00:45 -05:00
|
|
|
|
|
|
|
template<typename T>
|
|
|
|
class simplex_noise {
|
|
|
|
private:
|
|
|
|
|
|
|
|
public:
|
|
|
|
simplex_noise() {
|
|
|
|
|
|
|
|
}
|
|
|
|
};
|
2023-01-04 14:35:57 -05:00
|
|
|
}
|
|
|
|
|
|
|
|
#endif //BLT_RANDOM_H
|