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#pragma once
namespace util {
class Random {
public:
static constexpr int MAX_VALUE = 0x7fffffff;
static constexpr int HALF_MAX_VALUE = MAX_VALUE / 2;
static constexpr float INV_F_MAX_VALUE = 1.0f / static_cast<float>(MAX_VALUE);
// seed(1) will result in RNG using its default seed
static void seed(unsigned int val);
// return a value in [0, MAX_VALUE]
static int next(); // uniformly between 0 and MAX_VALUE
// return a value in [0, modulus-1]
static int next(int modulus);
// return a value in [low, high]
static int next(int low, int high);
// return true/false with equal probability
static bool flip_coin();
// jump ahead in the RNG sequence
static void advance(unsigned long long distance);
private:
Random();
};
} // namespace util
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