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/// \file electromagnetic/TestEm17/src/SteppingAction.cc
/// \brief Implementation of the SteppingAction class
//
// $Id$
// 
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#include "SteppingAction.hh"
#include "RunAction.hh"
#include "HistoManager.hh"

#include "G4RunManager.hh"

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SteppingAction::SteppingAction(RunAction* RuAct, HistoManager* Hist)
  :G4UserSteppingAction(),fRunAction(RuAct), fHistoManager(Hist)
{ }

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SteppingAction::~SteppingAction()
{ }

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void SteppingAction::UserSteppingAction(const G4Step* aStep)
{  
  G4StepPoint* endPoint = aStep->GetPostStepPoint();
  G4String procName = endPoint->GetProcessDefinedStep()->GetProcessName();

  //count processes 
  //    
  fRunAction->CountProcesses(procName);
  
  //plot energy transfered
  //
  G4StepPoint* startPoint = aStep->GetPreStepPoint();
  G4double E0 = startPoint->GetKineticEnergy();
  G4double edep = aStep->GetTotalEnergyDeposit();
  G4double E1 = E0 - edep;
  G4double E2 = endPoint->GetKineticEnergy();
  G4double etrans = E1 - E2;
  G4double lgepsE = 0.;
  if (etrans > 0.) lgepsE = std::log10(etrans/E1);

  G4int id = 0;
  if (procName == "muIoni")          id = 1; 
  else if (procName == "muPairProd") id = 2;
  else if (procName == "muBrems")    id = 3;
  //  else if (procName == "muNucl")     id = 4;    
  else if (procName == "muonNuclear")id = 4;    
  else if (procName == "hIoni")      id = 5; 
  else if (procName == "hPairProd")  id = 6;
  else if (procName == "hBrems")     id = 7;
  fHistoManager->FillHisto(id,lgepsE);                       
}

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