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// 
/// \file B4aSteppingAction.cc
/// \brief Implementation of the B4aSteppingAction class

#include "B4aSteppingAction.hh"
#include "B4aEventAction.hh"
#include "B4DetectorConstruction.hh"

#include "G4Step.hh"
#include "G4RunManager.hh"

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B4aSteppingAction::B4aSteppingAction(
                      const B4DetectorConstruction* detectorConstruction,
                      B4aEventAction* eventAction)
  : G4UserSteppingAction(),
    fDetConstruction(detectorConstruction),
    fEventAction(eventAction)
{}

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B4aSteppingAction::~B4aSteppingAction()
{}

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void B4aSteppingAction::UserSteppingAction(const G4Step* step)
{
// Collect energy and track length step by step

  // get volume of the current step
  auto volume = step->GetPreStepPoint()->GetTouchableHandle()->GetVolume();
  
  // energy deposit
  auto edep = step->GetTotalEnergyDeposit();
  
  // step length
  G4double stepLength = 0.;
  if ( step->GetTrack()->GetDefinition()->GetPDGCharge() != 0. ) {
    stepLength = step->GetStepLength();
  }
      
  if ( volume == fDetConstruction->GetAbsorberPV() ) {
    fEventAction->AddAbs(edep,stepLength);
  }
  
  if ( volume == fDetConstruction->GetGapPV() ) {
    fEventAction->AddGap(edep,stepLength);
  }
}

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