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// $Id$
//
/// \file B1SteppingAction.cc
/// \brief Implementation of the B1SteppingAction class

#include "B1SteppingAction.hh"
#include "B1EventAction.hh"
#include "B1DetectorConstruction.hh"

#include "G4Step.hh"
#include "G4Event.hh"
#include "G4RunManager.hh"
#include "G4LogicalVolume.hh"

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B1SteppingAction::B1SteppingAction(B1EventAction* eventAction)
: G4UserSteppingAction(),
  fEventAction(eventAction),
  fScoringVolume(0)
{}

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B1SteppingAction::~B1SteppingAction()
{}

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void B1SteppingAction::UserSteppingAction(const G4Step* step)
{
  if (!fScoringVolume) { 
    const B1DetectorConstruction* detectorConstruction
      = static_cast<const B1DetectorConstruction*>
        (G4RunManager::GetRunManager()->GetUserDetectorConstruction());
    fScoringVolume = detectorConstruction->GetScoringVolume();   
  }

  // get volume of the current step
  G4LogicalVolume* volume 
    = step->GetPreStepPoint()->GetTouchableHandle()
      ->GetVolume()->GetLogicalVolume();
      
  // check if we are in scoring volume
  if (volume != fScoringVolume) return;

  // collect energy deposited in this step
  G4double edepStep = step->GetTotalEnergyDeposit();
  fEventAction->AddEdep(edepStep);  
}

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