//
// ********************************************************************
// * DISCLAIMER                                                       *
// *                                                                  *
// * The following disclaimer summarizes all the specific disclaimers *
// * of contributors to this software. The specific disclaimers,which *
// * govern, are listed with their locations in:                      *
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//
// $Id: G4ParallelImportanceProcess.cc,v 1.8 2002/11/04 10:47:56 dressel Exp $
// GEANT4 tag $Name: geant4-05-00 $
//
// ----------------------------------------------------------------------
// GEANT 4 class source file
//
// G4ParallelImportanceProcess.cc
//
// ----------------------------------------------------------------------

#include "G4ParallelImportanceProcess.hh"
#include "G4VImportanceSplitExaminer.hh"
#include "g4std/strstream"
#include "G4VTrackTerminator.hh"

G4ParallelImportanceProcess::
G4ParallelImportanceProcess(const G4VImportanceSplitExaminer &aImportanceSplitExaminer,
			    G4VPGeoDriver &pgeodriver,
			    G4VParallelStepper &aStepper, 
			    const G4VTrackTerminator *TrackTerminator,
			    const G4String &aName)
 : 
  G4ParallelTransport(pgeodriver, aStepper, aName),
  fTrackTerminator(TrackTerminator ? TrackTerminator : this),
  fParticleChange(G4ParallelTransport::fParticleChange),
  fImportanceSplitExaminer(aImportanceSplitExaminer),
  fImportancePostStepDoIt(*fTrackTerminator)
{}

G4ParallelImportanceProcess::~G4ParallelImportanceProcess()
{}


G4VParticleChange *G4ParallelImportanceProcess::
PostStepDoIt(const G4Track& aTrack, const G4Step &aStep)
{
  if (aTrack.GetTrackStatus()==fStopAndKill) {
    G4cout << "G4ParallelImportanceProcess::PostStepDoIt StopAndKill" << G4endl;
  }
  G4ParallelTransport::PostStepDoIt(aTrack, aStep);

  // get new weight and number of clones
  G4Nsplit_Weight nw(fImportanceSplitExaminer.Examine(aTrack.GetWeight()));

  fImportancePostStepDoIt.DoIt(aTrack, fParticleChange, nw);
  return fParticleChange;
}
  
void G4ParallelImportanceProcess::Error(const G4String &m)
{
  G4cout << "ERROR - G4ImportanceProcess::" << m << G4endl;
  G4Exception("Program aborted.");
}



void G4ParallelImportanceProcess::KillTrack() const{
  fParticleChange->SetStatusChange(fStopAndKill);
}


const G4String &G4ParallelImportanceProcess::GetName() const {
  return G4ParallelTransport::GetProcessName();
}