EventAction.h

/**************************************************************************
 * basf2 (Belle II Analysis Software Framework)                           *
 * Author: The Belle II Collaboration                                     *
 *                                                                        *
 * See git log for contributors and copyright holders.                    *
 * This file is licensed under LGPL-3.0, see LICENSE.md.                  *
 **************************************************************************/
 
#pragma once
 
#include <framework/datastore/StoreObjPtr.h>
#include <mdst/dataobjects/MCParticleGraph.h>
 
#include <G4UserEventAction.hh>
 
#include <fstream>
 
class G4Event;
 
namespace Belle2 {
 
  class EventMetaData;
 
  namespace Simulation {

    class EventAction : public G4UserEventAction {
 
    public:
      EventAction(const std::string& mcCollectionName, MCParticleGraph& mcParticleGraph);

      virtual ~EventAction();

      void BeginOfEventAction(const G4Event* event);

      void EndOfEventAction(const G4Event* event);

      std::ofstream* getVREventStream() const { return m_VREventStream; }
 
    protected:
 
      std::string m_mcCollectionName;     
      MCParticleGraph& m_mcParticleGraph; 
 
    private:
 
      bool m_writeSimSteps{false}; 
      std::ofstream* m_VREventStream{nullptr};  
      StoreObjPtr<EventMetaData> m_evtMetaData; 
 
    };
 
  }  // end namespace Simulation
} // end namespace Belle2