//
// ********************************************************************
// * 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 WLSUserTrackInformation.cc
/// \brief Implementation of the WLSUserTrackInformation class

#include "WLSUserTrackInformation.hh"

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

G4bool WLSUserTrackInformation::AddStatusFlag(TrackStatus s)
// Try adding a status flag and return if it is successful or not
// Cannot Add Undefine or a flag that conflicts with another flag
// Return true if the addition of flag is successful, false otherwise
{
  switch (s) {
    case left:
    case right:

      // Allow the user to set left or right
      // only if the track is undefined
      if (fStatus == undefined) return fStatus |= s;

      return false;

    case EscapedFromSide:
    case EscapedFromReadOut:

      // Allow the user to set escaped flag
      // only if the photon hasn't exited the fiber yet

      if ((fStatus == undefined) || (fStatus & OutsideOfFiber)) return false;

      return fStatus |= s;

    case ReflectedAtMirror:
    case ReflectedAtReadOut:
    case murderee:

      return fStatus |= s;

    case InsideOfFiber:

      return (fStatus = (fStatus & ~(EscapedFromSide + EscapedFromReadOut + OutsideOfFiber)) | s);

    case OutsideOfFiber:

      return (fStatus = (fStatus & ~InsideOfFiber) | s);

    default:

      return false;
  }
}
