ParticleKillAction.hpp

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// This file is part of the Acts project.
//
// Copyright (C) 2023 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 http://mozilla.org/MPL/2.0/.

#pragma once

#include "Acts/Geometry/Volume.hpp"
#include "Acts/Utilities/Logger.hpp"

#include <memory>
#include <string>

#include <G4UserSteppingAction.hh>

class G4Step;
namespace Acts {
class Volume;
}  // namespace Acts

namespace ActsExamples {

class ParticleKillAction : public G4UserSteppingAction {
 public:
  struct Config {
    std::shared_ptr<const Acts::Volume> volume;
    double maxTime = std::numeric_limits<double>::infinity();
    bool secondaries = false;
  };

  ParticleKillAction(const Config& cfg,
                     std::unique_ptr<const Acts::Logger> logger =
                         Acts::getDefaultLogger("ParticleKillAction",
                                                Acts::Logging::INFO));
  ~ParticleKillAction() override = default;

  void UserSteppingAction(const G4Step* step) override;

 private:
  const Acts::Logger& logger() const { return *m_logger; }

  Config m_cfg;
  std::unique_ptr<const Acts::Logger> m_logger;
};

}  // namespace ActsExamples