// This file is part of the ACTS project.

//

// Copyright (C) 2016 CERN for the benefit of the ACTS project

//

// 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 https://mozilla.org/MPL/2.0/.

#include "ActsExamples/Framework/RandomNumbers.hpp"

#include "Acts/Utilities/HashCombine.hpp"

#include "ActsExamples/Framework/AlgorithmContext.hpp"

namespace ActsExamples {

RandomNumbers::RandomNumbers(const Config& cfg) : m_cfg(cfg) {}

RandomEngine RandomNumbers::spawnGenerator(

const AlgorithmContext& context) const {

return RandomEngine(generateSeed(context));

}

RandomSeed RandomNumbers::generateSeed(const AlgorithmContext& context) const {

return Acts::hashMixAndCombine(m_cfg.seed, context.eventNumber,

context.algorithmNumber);

}

} // namespace ActsExamples