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// -------------------------------------------------------------------
//      GEANT4 Class file
//
//
//      File name:    G4QMDReaction.hh 
//
//      Author: Koi, Tatsumi (tkoi@slac.stanford.edu)       
// 
//      Creation date: 02 April 2007
// -----------------------------------------------------------------------------
//
// 081107 Add UnUseGEM (then use the default channel of G4Evaporation)
//            UseFrag (chage criterion of a inelastic reaction)
//

#ifndef G4QMDReaction_hh
#define G4QMDReaction_hh

#include "G4QMDSystem.hh"
#include "G4QMDCollision.hh"
#include "G4QMDMeanField.hh"
#include "G4QMDParticipant.hh"

#include "G4IonsShenCrossSection.hh"
#include "G4GeneralSpaceNNCrossSection.hh"

#include "G4HadronicInteraction.hh"

#include "G4Evaporation.hh"
#include "G4ExcitationHandler.hh"
//#include "G4PreCompoundModel.hh"

class G4QMDReaction : public G4HadronicInteraction
{
   public:
      G4QMDReaction();
      ~G4QMDReaction();

      std::vector< G4QMDSystem* > GetFinalStates(); 


      G4HadFinalState *ApplyYourself( const G4HadProjectile &aTrack, G4Nucleus & targetNucleus );

      void UnUseGEM(){ gem = false; setEvaporationCh(); };
      void UseFRAG(){ frag = true; };

   private:

      void setEvaporationCh();

      G4QMDMeanField* meanField;

      G4QMDCollision* collision;

      void doCollision();
      std::vector< G4QMDSystem* > doClusterJudgment();
      
      G4QMDSystem* system;
      G4double deltaT;
      G4int maxTime;

      G4Evaporation* evaporation;
      G4ExcitationHandler* excitationHandler;

//      G4VPreCompoundModel* preco; 


      //                            b        pd_proj                pd_targ                  z_p     a_p     z_t     a_t      plab       elab
//      G4double offSetOfCollision( G4double , G4ParticleDefinition* , G4ParticleDefinition* , G4int , G4int , G4int , G4int , G4double , G4double  );  
      //                           b          pd_proj                 pd_targ                 plab       elab      bmax boostToCM
      void calcOffSetOfCollision( G4double , G4ParticleDefinition* , G4ParticleDefinition* , G4double , G4double , G4double , G4ThreeVector );  
      G4double coulomb_collision_gamma_proj;
      G4double coulomb_collision_rx_proj;
      G4double coulomb_collision_rz_proj;
      G4double coulomb_collision_px_proj;
      G4double coulomb_collision_pz_proj;

      G4double coulomb_collision_gamma_targ;
      G4double coulomb_collision_rx_targ;
      G4double coulomb_collision_rz_targ;
      G4double coulomb_collision_px_targ;
      G4double coulomb_collision_pz_targ;

      G4IonsShenCrossSection shenXS;
      G4IonsShenCrossSection genspaXS;

      G4bool gem;
      G4bool frag;

};

#endif