Files
Tourmaline-Engine/source/Systems/Implementation/Random.cpp
2026-01-06 02:27:33 +02:00

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834 B
C++

/*
* SPDX-FileCopyrightText: Dora "cat" <cat@thenight.club>
* SPDX-License-Identifier: MPL-2.0
*
* This Source Code Form is subject to the terms of the Mozilla Public License,
* v. 2.0. If a copy of the MPL was not distributed with this file, You can
* obtain one at http://mozilla.org/MPL/2.0/.
*/
#include "../Random.hpp"
#include <bit>
#include <cstdint>
#include <ctime>
using namespace Tourmaline::Systems;
Xoshiro::Xoshiro256PP Random::generator(static_cast<uint64_t>(time(NULL)));
Tourmaline::Type::UUID Random::GenerateUUID() {
uint64_t random_ab = generator(), random_c = generator(), hold = 0;
hold = std::rotr(random_ab, 12);
hold = hold >> 4;
hold = (hold << 4) + 0b0100;
random_ab = std::rotl(hold, 12);
random_c = ((random_c >> 2) << 2) + 2;
return Tourmaline::Type::UUID(random_ab, random_c);
}