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

#ifndef BiasingOperator_hh
#define BiasingOperator_hh 1

#include "G4VBiasingOperator.hh"

#include <vector>

class G4ParticleDefinition;
class BiasingOperation;

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

class BiasingOperator : public G4VBiasingOperator
{
    // When a proton, or neutron, or pion+ or pion- inelastic process occurs
    // (naturally, without any biasing) in the logical volume(s) where this
    // biasing operator has been attached to, this class uses the biasing "trick"
    // of calling FTFP+INCLXX instead of FTFP+BERT for determining the final-state.
    // Note that the weights of the produced secondaries are left to their default values, 1.0.
  public:
    BiasingOperator();
    virtual ~BiasingOperator() {}
    void AddParticle(G4String particleName);
    virtual G4VBiasingOperation*
    ProposeFinalStateBiasingOperation(const G4Track* track,
                                      const G4BiasingProcessInterface* callingProcess) final;
    // Not used:
    virtual G4VBiasingOperation* ProposeNonPhysicsBiasingOperation(const G4Track*,
                                                                   const G4BiasingProcessInterface*)
    {
      return 0;
    }
    virtual G4VBiasingOperation* ProposeOccurenceBiasingOperation(const G4Track*,
                                                                  const G4BiasingProcessInterface*)
    {
      return 0;
    }

  private:
    std::vector<const G4ParticleDefinition*> fParticlesToBias;
    BiasingOperation* fBiasingOperation;
};

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

#endif