Method PrepareNewEvent

source/event/src/G4StackManager.cc:241–309

}

G4int G4StackManager::PrepareNewEvent(G4Event* currentEvent)
{
  if(userStackingAction != nullptr)
  {
    userStackingAction->PrepareNewEvent();
  }
  
  // Set the urgentStack in a defined state. Not doing it would
  // affect reproducibility
  //
  urgentStack->clearAndDestroy();
  
  G4int n_passedFromPrevious = 0;
  
  if( GetNPostponedTrack() > 0 )
  {
#ifdef G4VERBOSE
    if( verboseLevel > 1 )
    {
      G4cout << GetNPostponedTrack()
             << " postponed tracked are now shifted to the stack." << G4endl;
    }
#endif
    
    G4StackedTrack aStackedTrack;
    G4TrackStack   tmpStack;
    
    postponeStack->TransferTo(&tmpStack);
    
    while( tmpStack.GetNTrack() > 0 )
    {
      aStackedTrack=tmpStack.PopFromStack();
      G4Track* aTrack = aStackedTrack.GetTrack();
      DefineDefaultClassification( aTrack );
      G4ClassificationOfNewTrack classification = fDefaultClassification;
      if(userStackingAction!=nullptr)
      {
        classification = userStackingAction->ClassifyNewTrack( aTrack );
        if(classification != fDefaultClassification)
        {
          if(fExceptionSeverity!=G4ExceptionSeverity::IgnoreTheIssue)
          {
            G4ExceptionDescription ed;
            ed << "UserStackingAction has changed the track classification from "
               << fDefaultClassification << " to " << classification << ". ";
            G4Exception("G4StackManager::PushOneTrack","Event10052",
                        fExceptionSeverity,ed);
          }
        }
      }
      if(classification!=fKill)
      {
        aTrack->SetParentID(-1);
        aTrack->SetTrackID(-(++n_passedFromPrevious)); 
      }
      else if(aTrack->GetTrackStatus() == fSuspendAndWait && classification > 0)
      // to avoid this track sent to Waiting stack again
      { aTrack->SetTrackStatus( fSuspend ); }