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/// \file electromagnetic/TestEm12/src/SteppingAction.cc
/// \brief Implementation of the SteppingAction class
//
// $Id$
//
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#include "SteppingAction.hh"
#include "Run.hh"
#include "EventAction.hh"
#include "HistoManager.hh"

#include "G4RunManager.hh"

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SteppingAction::SteppingAction(EventAction* event)
:G4UserSteppingAction(),
 fEventAction(event)
{ }

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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
 //
 fEventAction->AddEdep(edep);     
 
 //longitudinal profile of deposited energy
 //        
 G4ThreeVector prePoint  = aStep->GetPreStepPoint() ->GetPosition();
 G4ThreeVector postPoint = aStep->GetPostStepPoint()->GetPosition();
 G4ThreeVector point = prePoint + G4UniformRand()*(postPoint - prePoint);
 G4double r = point.mag();
 G4AnalysisManager* analysisManager = G4AnalysisManager::Instance();
 analysisManager->FillH1(1, r, edep);
 
 Run* run
   = static_cast<Run*>(G4RunManager::GetRunManager()->GetNonConstCurrentRun());
    
 G4double r0 = run->GetCsdaRange();
 if (r0 > 0.) analysisManager->FillH1(8, r/r0, edep);
 
 //step size of primary particle or charged secondaries
 //
 G4double steplen = aStep->GetStepLength();
 const G4Track* track = aStep->GetTrack();
 if      (track->GetTrackID() == 1) analysisManager->FillH1(4, steplen);
 else if (track->GetDefinition()->GetPDGCharge() != 0.)
                                    analysisManager->FillH1(7, steplen); 
}

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