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/// \file BiasingOperation.hh
/// \brief Definition of the BiasingOperation class

#ifndef BiasingOperation_hh
#define BiasingOperation_hh 1

#include "G4VBiasingOperation.hh"

class G4HadronInelasticProcess;

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

class BiasingOperation : public G4VBiasingOperation
{
    // The biasing operation implemented in this class is indeed a "trick" to
    // use FTFP+INCLXX instead of FTFP+BERT for determining the final-state of
    // proton, neutron, pion+, pion- inelastic interactions happening in one
    // particular logical volume, Tracking_region, where the biasing is applied.
  public:
    BiasingOperation(G4String name);
    virtual ~BiasingOperation();
    virtual G4VParticleChange* ApplyFinalStateBiasing(const G4BiasingProcessInterface*,
                                                      const G4Track*, const G4Step*, G4bool&);
    // Unused :
    virtual const G4VBiasingInteractionLaw*
    ProvideOccurenceBiasingInteractionLaw(const G4BiasingProcessInterface*, G4ForceCondition&)
    {
      return 0;
    }
    virtual G4double DistanceToApplyOperation(const G4Track*, G4double, G4ForceCondition*)
    {
      return DBL_MAX;
    }
    virtual G4VParticleChange* GenerateBiasingFinalState(const G4Track*, const G4Step*)
    {
      return 0;
    }

  private:
    G4HadronInelasticProcess* fProtonInelasticProcess;
    G4HadronInelasticProcess* fNeutronInelasticProcess;
    G4HadronInelasticProcess* fPionPlusInelasticProcess;
    G4HadronInelasticProcess* fPionMinusInelasticProcess;
};

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

#endif
