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#pragma once

#include "Range.h"

#include <random>

class RNG {
public:
	static RNG & get();
	static std::mt19937 & get_engine();

public:
	int rand_int(const int upper);
	//! \note upper is non-inclusive
	int rand_int(const int lower, const int upper);
	//! \note range is inclusive
	int rand_int(const Range<int> range);
	double rand_double();
	double rand_double(const double lower, const double upper);
	bool rand_bool();

private:
	RNG();

private:
	std::random_device dev;
	std::mt19937 rng;
};