G4Interaction.hh

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//
//               __        __ __  __  __
//   ____ ______/ /_____ _/ // / / /_/ /__
//  / __ `/ ___/ __/ __ `/ // /_/ __/ //_/
// / /_/ / /  / /_/ /_/ /__  __/ /_/ ,<
// \__,_/_/   \__/\__, /  /_/  \__/_/|_|
//               /____/
//
// artg4tk: art based Geant 4 Toolkit
//
//=============================================================================
// G4Interaction.hh: holds outcome of an interaction + checks if 1st interaction or not
// Author: Julia Yarba (Fermilab)
//=============================================================================
#ifndef artg4tk_DataProducts_G4DetectorHits_G4Interaction_hh
#define artg4tk_DataProducts_G4DetectorHits_G4Interaction_hh

#include "Geant4/G4VParticleChange.hh"

class G4Interaction : public G4VParticleChange {

public:
  G4Interaction() : fIsFirstInter(false), fIncomingTrack(0) {}
  G4Interaction(bool isFirst) : fIsFirstInter(isFirst), fIncomingTrack(0) {}
  virtual ~G4Interaction()
  {
    if (fIncomingTrack)
      delete fIncomingTrack;
    fIncomingTrack = 0;
  }

  void
  SetIncomingTrack(G4Track* trk)
  {
    if (fIncomingTrack)
      delete fIncomingTrack;
    fIncomingTrack = new G4Track(*trk);
    fIncomingTrack->SetTouchableHandle(trk->GetTouchableHandle());
    fIncomingTrack->SetStep(new G4Step(*(trk->GetStep())));
    return;
  }
  bool
  IsFirstInteraction() const
  {
    return fIsFirstInter;
  }
  const G4Track*
  GetIncomingTrack() const
  {
    return fIncomingTrack;
  }

private:
  bool fIsFirstInter;
  G4Track* fIncomingTrack;
};

#endif /* artg4tk_DataProducts_G4DetectorHits_G4Interaction_hh */