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// This is the modified version of the example electromagnetic/TestEm7/src/SteppingAction.cc

#include "SteppingAction.hh"
#include "G4Step.hh"
#include "G4StepPoint.hh"
#include "DetectorConstruction.hh"
#include "RunAction.hh"
#include "Randomize.hh"

SteppingAction::SteppingAction(DetectorConstruction* det, RunAction* RuAct)
:G4UserSteppingAction(),fDetector(det), fRunAction(RuAct)
{ }

SteppingAction::~SteppingAction()
{ }

void SteppingAction::UserSteppingAction(const G4Step* step)
{
  G4double edep = step->GetTotalEnergyDeposit();
  if (edep <= 0.) return;
  
  fRunAction->FillEdep(edep);
  
  if (step->GetTrack()->GetTrackID() == 1) {
    fRunAction->AddPrimaryStep();
    /*
    G4cout << step->GetTrack()->GetMaterial()->GetName()
           << "  E1= " << step->GetPreStepPoint()->GetKineticEnergy()
           << "  E2= " << step->GetPostStepPoint()->GetKineticEnergy()
           << " Edep= " << edep << G4endl;
    */
  } 

  //Bragg curve
  G4StepPoint* prePoint  = step->GetPreStepPoint();
  G4StepPoint* postPoint = step->GetPostStepPoint();
   
  G4double x1 = prePoint->GetPosition().x();
  G4double x2 = postPoint->GetPosition().x();  
  G4double x  = x1 + G4UniformRand()*(x2-x1) + 0.5*(fDetector->GetAbsorSizeX());
  G4AnalysisManager* analysisManager = G4AnalysisManager::Instance();
  analysisManager->FillH1(1, x, edep); 
  analysisManager->FillH1(2, x, edep);
  
  //fill layers
  G4int copyNb = prePoint->GetTouchableHandle()->GetCopyNumber();
  if (copyNb > 0) fRunAction->FillLayerEdep(copyNb, edep); 
}