ExampleAction.h

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#ifndef ALTNS_EXAMPLEACTION_H
#define ALTNS_EXAMPLEACTION_H

#include "nutools/G4Base/UserAction.h"

// Forward declarations.
class G4Event;
class G4Track;
class G4Step;

namespace altns {

  // accumulate a list of particles modeled in G4
  class ExampleAction : public g4b::UserAction {

  public:
    // Standard constructors and destructors;
    ExampleAction();
    virtual ~ExampleAction();

    void Config(fhicl::ParameterSet const& pset);
    void PrintConfig(std::string const& opt);

    void BeginOfEventAction(const G4Event*);
    void EndOfEventAction(const G4Event*);
    void PreTrackingAction(const G4Track*);
    void PostTrackingAction(const G4Track*);
    void SteppingAction(const G4Step*);

    bool ProvidesStacking() { return true; } 
    G4ClassificationOfNewTrack StackClassifyNewTrack(const G4Track*);
    void StackNewStage();
    void StackPrepareNewEvent();

  private:

    double           fSomeValue;            
    int              fVerbose;              
    int              fStepMsgMaxPerEvt;     
    int              fTrack2ndMsgMaxPerEvt; 

    int              fStepMsg;      
    int              fTrack2ndMsg;  

   };

} // namespace altns

#endif // ALTNS_EXAMPLEACTION_h