30 lines
795 B
C++
30 lines
795 B
C++
#include "random.hpp"
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#include <random>
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static bool init = false;
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static std::mt19937_64 generator;
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//Initialize with seed specified
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void Random_Init(uint32_t seed) {
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init = true;
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generator = std::mt19937_64{seed};
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}
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//Returns a random integer in range [min, max-1]
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uint32_t Random(int min, int max) {
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if (!init) {
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//No seed given, get a random number from device to seed
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const auto seed = static_cast<uint32_t>(std::random_device{}());
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Random_Init(seed);
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}
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std::uniform_int_distribution<uint32_t> distribution(min, max-1);
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return distribution(generator);
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}
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//Returns a random floating point number in [0.0, 1.0]
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double RandomDouble() {
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std::uniform_real_distribution<double> distribution(0.0, 1.0);
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return distribution(generator);
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}
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