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/// \file electromagnetic/TestEm1/src/StackingAction.cc
/// \brief Implementation of the StackingAction class
//
//
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#include "StackingAction.hh"
//#include "HistoManager.hh"
#include "G4SystemOfUnits.hh"
#include "G4Track.hh"
#include "G4RunManager.hh"
#include "g4analysis.hh"
#include "G4DynamicParticle.hh"
#include "globals.hh"
#include "G4ThreeVector.hh"
#include "G4Event.hh"
#include "G4PrimaryParticle.hh"
#include "G4PrimaryVertex.hh"
#include "G4Step.hh"
#include "G4ThreeVector.hh"
#include "G4Track.hh"
#include "G4TrackStatus.hh"
#include "G4VProcess.hh"
#include "G4UImanager.hh"
#include "G4Ions.hh"
#include "G4Navigator.hh"
#include "G4TransportationManager.hh"
#include "G4ProcessManager.hh"
#include "G4StepStatus.hh"


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StackingAction::StackingAction()
 : G4UserStackingAction()
{ }

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StackingAction::~StackingAction()
{ }

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G4ClassificationOfNewTrack
StackingAction::ClassifyNewTrack(const G4Track* track)
{  
//This code looks for gammas emitted by nuclear decays
  //and counts how many primary particles are emitted in the decay

  G4int parentID = track->GetParentID();
  G4String particleName =  track->GetDefinition()->GetParticleName();
  G4String particleType = track->GetDefinition()->GetParticleType();
  
  G4cout <<"Process is " << track->GetCreatorProcess()->GetProcessName() << G4endl;
  G4int pdggamma;
  G4double energy;
  
  G4AnalysisManager* analysisManager = G4AnalysisManager::Instance();
  
  if ((parentID == 0 && particleName == "gamma") || (track->GetCreatorProcess()->GetProcessName() == "RadioactiveDecay" && particleName == "gamma")) {
  	pdggamma = track->GetParticleDefinition()->GetPDGEncoding();
  	energy = track->GetDynamicParticle()->GetKineticEnergy();
  	analysisManager->FillNtupleDColumn(2,0, pdggamma);
  	//if (energy > 0) {
      analysisManager->FillNtupleDColumn(2,1, energy/keV);
      analysisManager->AddNtupleRow(2);  	
       analysisManager->FillH1(1, energy/keV);
   // }
  }
  return fUrgent;
}

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