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// $Id: SteppingAction.cc,v 1.5 2007/08/19 20:52:53 maire Exp $
// GEANT4 tag $Name: geant4-09-03-cand-01 $
//
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#include "SteppingAction.hh"
#include "DetectorConstruction.hh"
#include "RunAction.hh"
#include "EventAction.hh"
#include "HistoManager.hh"

#include "G4SteppingManager.hh"
#include "Randomize.hh"

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SteppingAction::SteppingAction(DetectorConstruction* det, RunAction* RuAct,
                               EventAction* event, HistoManager* histo)
:detector(det), runAction(RuAct), eventAction(event), histoManager(histo)
{ }

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SteppingAction::~SteppingAction()
{ }

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void SteppingAction::UserSteppingAction(const G4Step* aStep)
{
 G4double edep = aStep->GetTotalEnergyDeposit();
 if (edep <= 0.) return;
 
 //total energy deposit in absorber
 //
 eventAction->AddEdep(edep);     
 
 //longitudinal profile of deposited energy
 //
 G4ThreeVector prePoint  = aStep->GetPreStepPoint() ->GetPosition();
 G4ThreeVector postPoint = aStep->GetPostStepPoint()->GetPosition();
 G4ThreeVector point = prePoint + G4UniformRand()*(postPoint - prePoint);
 G4double x = point.x() + 0.5*detector->GetAbsorSizeX();  
 histoManager->FillHisto(1, x, edep);
 
 G4double r0 = histoManager->GetcsdaRange();
 if (r0 > 0.) histoManager->FillHisto(8, x/r0, edep);
  
 //step size of primary particle or charged secondaries
 //
 G4double steplen = aStep->GetStepLength();
 const G4Track* track = aStep->GetTrack();
 if      (track->GetTrackID() == 1) histoManager->FillHisto(4, steplen);
 else if (track->GetDefinition()->GetPDGCharge() != 0.)
                                    histoManager->FillHisto(7, steplen); 
}

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