//
// ********************************************************************
// * License and Disclaimer                                           *
// *                                                                  *
// * The  Geant4 software  is  copyright of the Copyright Holders  of *
// * the Geant4 Collaboration.  It is provided  under  the terms  and *
// * conditions of the Geant4 Software License,  included in the file *
// * LICENSE and available at  http://cern.ch/geant4/license .  These *
// * include a list of copyright holders.                             *
// *                                                                  *
// * Neither the authors of this software system, nor their employing *
// * institutes,nor the agencies providing financial support for this *
// * work  make  any representation or  warranty, express or implied, *
// * regarding  this  software system or assume any liability for its *
// * use.  Please see the license in the file  LICENSE  and URL above *
// * for the full disclaimer and the limitation of liability.         *
// *                                                                  *
// * This  code  implementation is the result of  the  scientific and *
// * technical work of the GEANT4 collaboration.                      *
// * By using,  copying,  modifying or  distributing the software (or *
// * any work based  on the software)  you  agree  to acknowledge its *
// * use  in  resulting  scientific  publications,  and indicate your *
// * acceptance of all terms of the Geant4 Software license.          *
// ********************************************************************
//
/// \file TrackingAction.cc
/// \brief Implementation of the TrackingAction class

#include "TrackingAction.hh"

#include "HistoManager.hh"
#include "PrimaryGeneratorAction.hh"
#include "Run.hh"

#include "G4RunManager.hh"

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......

TrackingAction::TrackingAction(PrimaryGeneratorAction* prim) : fPrimary(prim) {}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......

void TrackingAction::PostUserTrackingAction(const G4Track* track)
{
  // histograms
  //
  G4AnalysisManager* analysisManager = G4AnalysisManager::Instance();

  G4int trackID = track->GetTrackID();

  Run* run = static_cast<Run*>(G4RunManager::GetRunManager()->GetNonConstCurrentRun());

  // track length of primary particle or charged secondaries
  //
  G4double tracklen = track->GetTrackLength();
  if (trackID == 1) {
    run->AddTrackLength(tracklen);
    analysisManager->FillH1(3, tracklen);
  }
  else if (track->GetDefinition()->GetPDGCharge() != 0.)
    analysisManager->FillH1(6, tracklen);

  // extract projected range of primary particle
  //
  if (trackID == 1) {
    G4double pr =
      (track->GetPosition()) * (fPrimary->GetParticleGun()->GetParticleMomentumDirection());
    run->AddProjRange(pr);
    analysisManager->FillH1(5, pr);
  }

  // mean step size of primary particle
  //
  if (trackID == 1) {
    G4int nbOfSteps = track->GetCurrentStepNumber();
    G4double stepSize = tracklen / nbOfSteps;
    run->AddStepSize(nbOfSteps, stepSize);
  }
}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
