MMSteppingAction.hpp

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// This file is part of the Acts project.
//
// Copyright (C) 2017-2018 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/.

// MMMaterialStepAction.hpp

#pragma once

#include <vector>

#include "ACTFW/EventData/SimHit.hpp"
#include "Acts/Propagator/MaterialInteractor.hpp"
#include "G4UserSteppingAction.hh"
#include "globals.hh"

namespace FW {
namespace Geant4 {

class MMSteppingAction : public G4UserSteppingAction {
 public:
  MMSteppingAction();

  ~MMSteppingAction() override;

  static MMSteppingAction* Instance();

  void UserSteppingAction(const G4Step* step) final override;

  void Reset();

  std::vector<Acts::MaterialInteraction> materialSteps() { return m_steps; }

  FW::SimHitContainer::sequence_type trackSteps() { return m_tracksteps; }

 private:
  static MMSteppingAction* fgInstance;

  std::vector<Acts::MaterialInteraction> m_steps = {};
  FW::SimHitContainer::sequence_type m_tracksteps;
};

}  // namespace Geant4
}  // namespace FW