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// $Id: StackingAction.cc,v 1.8 2009/03/06 18:04:23 maire Exp $
// GEANT4 tag $Name: geant4-09-03-cand-01 $
//
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#include "StackingAction.hh"

#include "RunAction.hh"
#include "EventAction.hh"
#include "HistoManager.hh"
#include "StackingMessenger.hh"

#include "G4Track.hh"

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StackingAction::StackingAction(RunAction* RA, EventAction* EA, HistoManager* HM)
:runaction(RA), eventaction(EA), histoManager(HM)
{
  killSecondary  = 0;
  stackMessenger = new StackingMessenger(this);
}

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StackingAction::~StackingAction()
{
  delete stackMessenger;
}

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G4ClassificationOfNewTrack
StackingAction::ClassifyNewTrack(const G4Track* aTrack)
{
  //keep primary particle
  if (aTrack->GetParentID() == 0) return fUrgent;

  //count secondary particles
  runaction->CountParticles(aTrack->GetDefinition());

  //
  //energy spectrum of secondaries
  //
  G4double energy = aTrack->GetKineticEnergy();
  G4double charge = aTrack->GetDefinition()->GetPDGCharge();

  if (charge != 0.) histoManager->FillHisto(2,energy);

  if (aTrack->GetDefinition() == G4Gamma::Gamma())
      histoManager->FillHisto(3, std::log10(energy/MeV));

  //stack or delete secondaries
  G4ClassificationOfNewTrack status = fUrgent;
  if (killSecondary) {
    if (killSecondary == 1) {
     eventaction->AddEnergy(energy);
    }  
     status = fKill;
  }
    
  return status;
}

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