// Copyright CERN and copyright holders of ALICE O2. This software is

// distributed under the terms of the GNU General Public License v3 (GPL

// Version 3), copied verbatim in the file "COPYING".

//

// See http://alice-o2.web.cern.ch/license for full licensing information.

//

// In applying this license CERN does not waive the privileges and immunities

// granted to it by virtue of its status as an Intergovernmental Organization

// or submit itself to any jurisdiction.

#ifndef O2_SIMCONFIG_G4PARAM_H_

#define O2_SIMCONFIG_G4PARAM_H_

#include "CommonUtils/ConfigurableParam.h"

#include "CommonUtils/ConfigurableParamHelper.h"

namespace o2

{

namespace conf

{

// enumerating the possible G4 physics settings

enum class EG4Physics {

kFTFP_BERT_optical = 0, /* just ordinary */

kFTFP_BERT_optical_biasing = 1, /* with biasing enabled */

kFTFP_INCLXX_optical = 2 /* special INCL++ version */

};

// parameters to influence the G4 engine

struct G4Params : public o2::conf::ConfigurableParamHelper<G4Params> {

EG4Physics physicsmode = EG4Physics::kFTFP_BERT_optical; // physics mode with which to configure G4

std::string const& getPhysicsConfigString() const;

O2ParamDef(G4Params, "G4");

};

} // namespace conf

} // namespace o2

#endif /* O2_SIMCONFIG_G4PARAM_H_ */