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#ifndef G4FTFParticipants_h
#define G4FTFParticipants_h 1

// ------------------------------------------------------------
//      GEANT 4 class header file
//
//      ---------------- G4FTFParticipants----------------
//             by Gunter Folger, June 1998.
//       class finding colliding particles in FTFPartonStringModel
// ------------------------------------------------------------

#include "G4VParticipants.hh"
#include "G4FTFParameters.hh"
#include <vector>
#include "G4Nucleon.hh"
#include "G4V3DNucleus.hh"
#include "G4Fancy3DNucleus.hh"
#include "G4ReactionProduct.hh"
#include "G4InteractionContent.hh"


class G4FTFParticipants : public G4VParticipants {
  public:
    G4FTFParticipants();
    const G4FTFParticipants& operator=( const G4FTFParticipants& right );
    ~G4FTFParticipants();
    G4bool operator==( const G4FTFParticipants& right ) const;
    G4bool operator!=( const G4FTFParticipants& right ) const;

    void GetList( const G4ReactionProduct& thePrimary, G4FTFParameters* theParameters );
    void StartLoop();
    G4bool Next();
    void SortInteractionsIncT();
    void ShiftInteractionTime();
    G4InteractionContent& GetInteraction();  
    void Clean();
    std::vector< G4InteractionContent* > theInteractions;

  private:
    G4FTFParticipants( const G4FTFParticipants& right );
    G4int currentInteraction;
};


inline void G4FTFParticipants::StartLoop() {
  currentInteraction = -1;
}


inline G4bool G4FTFParticipants::Next() {
  return ++currentInteraction < static_cast< G4int >( theInteractions.size() );
}


inline G4InteractionContent& G4FTFParticipants::GetInteraction() {
  return *theInteractions[ currentInteraction ];
}

#endif

