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// $Id: RE01SteppingAction.cc,v 1.2 2006/06/29 17:44:23 gunter Exp $
// GEANT4 tag $Name: geant4-09-04-beta-01 $
//


#include "RE01SteppingAction.hh"
#include "G4Track.hh"
#include "G4Step.hh"
#include "G4StepPoint.hh"
#include "G4TrackStatus.hh"
#include "G4VPhysicalVolume.hh"
#include "G4LogicalVolume.hh"
#include "G4Region.hh"
#include "RE01RegionInformation.hh"

RE01SteppingAction::RE01SteppingAction()
{;}

RE01SteppingAction::~RE01SteppingAction()
{;}

void RE01SteppingAction::UserSteppingAction(const G4Step * theStep)
{
  // Suspend a track if it is entering into the calorimeter

  // check if it is alive
  G4Track * theTrack = theStep->GetTrack();
  if(theTrack->GetTrackStatus()!=fAlive) { return; }

  // get region information
  G4StepPoint * thePrePoint = theStep->GetPreStepPoint();
  G4LogicalVolume * thePreLV = thePrePoint->GetPhysicalVolume()->GetLogicalVolume();
  RE01RegionInformation* thePreRInfo
   = (RE01RegionInformation*)(thePreLV->GetRegion()->GetUserInformation());
  G4StepPoint * thePostPoint = theStep->GetPostStepPoint();
  G4LogicalVolume * thePostLV = thePostPoint->GetPhysicalVolume()->GetLogicalVolume();
  RE01RegionInformation* thePostRInfo
   = (RE01RegionInformation*)(thePostLV->GetRegion()->GetUserInformation());

  // check if it is entering to the calorimeter volume
  if(!(thePreRInfo->IsCalorimeter()) && (thePostRInfo->IsCalorimeter()))
  { theTrack->SetTrackStatus(fSuspend); }
}