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//
/// \file EventAction.cc
/// \brief Implementation of the EventAction class

#include "EventAction.hh"

#include "RunAction.hh"

#include "G4AnalysisManager.hh"
#include "G4Event.hh"

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EventAction::EventAction() = default;

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EventAction::~EventAction() = default;

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void EventAction::BeginOfEventAction(const G4Event* evt)
{
  G4int evtNb = evt->GetEventID();
  if (evtNb % fPrintModulo == 0) {
    G4cout << "\n---> Begin of event: " << evtNb << G4endl;
  }

  // initialisation per event
  fEnergyAbs = fEnergyGap = 0.;
  fTrackLAbs = fTrackLGap = 0.;
}

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void EventAction::EndOfEventAction(const G4Event*)
{
  G4AnalysisManager* analysisManager = G4AnalysisManager::Instance();

  analysisManager->FillH1(0, fEnergyAbs);
  if (analysisManager->GetH1(1) != nullptr) {
    // histogram may not exist for all runs
    analysisManager->FillH1(1, fEnergyGap);
  }
  analysisManager->FillH1(2, fTrackLAbs);
  if (analysisManager->GetH1(3) != nullptr) {
    // histogram may not exist for all runs
    analysisManager->FillH1(3, fTrackLGap);
  }

  // fill ntuple
  //
  //  Fill 1st ntuple ( id = 0)
  analysisManager->FillNtupleDColumn(0, 0, fEnergyAbs);
  analysisManager->FillNtupleDColumn(0, 1, fEnergyGap);
  analysisManager->AddNtupleRow(0);
  // Fill 2nd ntuple ( id = 1)
  analysisManager->FillNtupleDColumn(1, 0, fTrackLAbs);
  analysisManager->FillNtupleDColumn(1, 1, fTrackLGap);
  analysisManager->AddNtupleRow(1);
}

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