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#ifndef G4CASCADE_COLLIDER_BASE_HH
#define G4CASCADE_COLLIDER_BASE_HH
// $Id$
//
// 20100714  M. Kelsey -- Move functionality from G4VCascadeCollider, and
//		provide conservation-checking here, with wrapper function
//		and control flag.
// 20100720  M. Kelsey -- Change G4CascadeCheckBalance to pointer member
// 20100925  M. Kelsey -- Add explosion(A,Z,Eex) and explosion(G4Fragment)
//		interfaces
// 20110225  M. Kelsey -- Add setVerboseLevel(), calls through to members
// 20110304  M. Kelsey -- Add dummy rescatter() interface here, to enforce
//		consistency in subclass colliders.
// 20110321  M. Kelsey -- Hide names of arguments to rescatter(), to avoid
//		compiler warnings on some GCC versions.

#include "G4VCascadeCollider.hh"

#include "globals.hh"
#include "G4InteractionCase.hh"
#include <vector>

class G4InuclElementaryParticle;
class G4InuclNuclei;
class G4InuclParticle;
class G4CollisionOutput;
class G4CascadeCheckBalance;
class G4Fragment;
class G4KineticTrackVector;
class G4V3DNucleus;


class G4CascadeColliderBase : public G4VCascadeCollider {
public:
  G4CascadeColliderBase(const char* name, G4int verbose=0);
  virtual ~G4CascadeColliderBase();

  // For use with top-level Propagate to preload a set of secondaries
  virtual void rescatter(G4InuclParticle* /*bullet*/,
			 G4KineticTrackVector* /*theSecondaries*/,
			 G4V3DNucleus* /*theNucleus*/,
			 G4CollisionOutput& /*globalOutput*/) { ; }

  virtual void setVerboseLevel(G4int verbose=0);

  virtual void setConservationChecks(G4bool doBalance=true) {
    doConservationChecks = doBalance;
  }

protected:
  G4InteractionCase interCase;		// Determine bullet vs. target
  G4bool doConservationChecks;		// Conservation-law validation
  G4CascadeCheckBalance* balance;

  // Decide whether to use G4ElementaryParticleCollider or not
  virtual G4bool useEPCollider(G4InuclParticle* bullet, 
			       G4InuclParticle* target) const;

  // Decide whether to use G4BigBanger or not
  virtual G4bool explosion(G4InuclNuclei* target) const;
  virtual G4bool explosion(G4Fragment* target) const;
  virtual G4bool explosion(G4int A, G4int Z, G4double excitation) const;

  // Decide whether to use G4IntraNuclearCascader or not
  virtual G4bool inelasticInteractionPossible(G4InuclParticle* bullet,
					      G4InuclParticle* target, 
					      G4double ekin) const;

  // ==> Provide same interfaces as G4CascadeCheckBalance itself

  // Validate output for energy, momentum conservation, etc.
  virtual G4bool validateOutput(G4InuclParticle* bullet,
				G4InuclParticle* target,
				G4CollisionOutput& output);

  // This is for use with G4EPCollider and G4BigBanger
  virtual G4bool validateOutput(G4InuclParticle* bullet,
				G4InuclParticle* target,
		const std::vector<G4InuclElementaryParticle>& particles);

  // This is for use with G4Fissioner
  virtual G4bool validateOutput(G4InuclParticle* bullet,
				G4InuclParticle* target,
		const std::vector<G4InuclNuclei>& fragments);
};        

#endif	/* G4CASCADE_COLLIDER_BASE_HH */