diff -u -r1.14 -r1.15
--- SteppingAction.hh	27 Nov 2012 19:32:18 -0000	1.14
+++ SteppingAction.hh	30 Apr 2013 23:08:37 -0000	1.15
@@ -1,8 +1,11 @@

-// $Header: /cvs/lcd/slic/include/SteppingAction.hh,v 1.14 2012/11/27 19:32:18 jeremy Exp $

+// $Header: /cvs/lcd/slic/include/SteppingAction.hh,v 1.15 2013/04/30 23:08:37 jeremy Exp $

 
 #ifndef SLIC_STEPPINGACTION_HH
 #define SLIC_STEPPINGACTION_HH 1
 

+// slic
+#include "Module.hh"
+

 // geant4
 #include "G4UserSteppingAction.hh"
 #include "G4Track.hh"

@@ -17,11 +20,16 @@

  @class SteppingAction
  @brief Implementation of G4UserSteppingAction.
  */

-class SteppingAction: public G4UserSteppingAction {

+class SteppingAction: public G4UserSteppingAction, Module {

 public:
 	SteppingAction();
 	virtual ~SteppingAction();
 	virtual void UserSteppingAction(const G4Step*);

+private:
+	/**
+	 * Check if a G4Track should be killed.
+	 */
+	void checkKillTrack(const G4Step*);

 };
 }
 

diff -u -r1.13 -r1.14
--- SteppingAction.cc	27 Nov 2012 19:32:19 -0000	1.13
+++ SteppingAction.cc	30 Apr 2013 23:08:37 -0000	1.14
@@ -1,4 +1,4 @@

-// $Header: /cvs/lcd/slic/src/SteppingAction.cc,v 1.13 2012/11/27 19:32:19 jeremy Exp $

+// $Header: /cvs/lcd/slic/src/SteppingAction.cc,v 1.14 2013/04/30 23:08:37 jeremy Exp $

 #include "SteppingAction.hh"
 
 // slic

@@ -8,19 +8,34 @@

 #include "G4UserRegionInformation.hh"
 #include "TrackInformation.hh"
 

+// geant4

 #include "G4UserSteppingAction.hh"

+#include "G4Track.hh"

 
 namespace slic {
 

-SteppingAction::SteppingAction() {

+SteppingAction::SteppingAction() : Module("SteppingAction", false, true) {

 }
 
 SteppingAction::~SteppingAction() {
 }
 
 void SteppingAction::UserSteppingAction(const G4Step* aStep) {

-	// TrajectoryManager's stepping action

+	/* TrajectoryManager's stepping action */

 	TrajectoryManager::instance()->stepping(aStep);

+
+	/* Check if the track should be killed. */
+	checkKillTrack(aStep);

 }

+
+void SteppingAction::checkKillTrack(const G4Step* aStep) {
+	/* Check if the preStepPoint region has tracking killing enabled. */
+	G4UserRegionInformation* regionInfo = G4UserRegionInformation::getRegionInformation(aStep->GetPreStepPoint());
+	if (regionInfo->getKillTracks()) {
+		/* Kill the track if region track kill flag is set to true. */
+		log() << LOG::always << "Killing track: " << aStep->GetTrack()->GetTrackID() << LOG::done;
+		aStep->GetTrack()->SetTrackStatus(fStopAndKill);
+	}

 }
 

+} // namespace slic