G4InteractionCase.hh

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// 20100518  M. Kelsey -- Why use std::pair<> at all?  Never exported; just
//      store pointers.  Add clear() function.  Move code from
//      Colliders' "bulletTargetSetter()" to set().
 
#ifndef G4INTERACTION_CASE_HH
#define G4INTERACTION_CASE_HH
 
#include "globals.hh"
 
class G4InuclParticle;
 
 
class G4InteractionCase {
public:
  G4InteractionCase() : bullet(0), target(0), inter_case(0) {}
 
  G4InteractionCase(G4InuclParticle* part1, G4InuclParticle* part2) {
    set(part1, part2);
  }
 
  void set(G4InuclParticle* part1, G4InuclParticle* part2);
 
  void clear() {
    bullet = target = 0;
    inter_case = 0;
  }
 
  G4InuclParticle* getBullet() const { return bullet; }
  G4InuclParticle* getTarget() const { return target; }
 
  G4bool valid() const      { return inter_case != 0; }
 
  G4bool twoNuclei() const  { return inter_case == -2; }
  G4bool hadNucleus() const { return inter_case == -1; }
  G4int  hadrons() const    { return inter_case; }  // "rtype" or "is" code
 
  // For compatibility with G4IntraNucleiCascader code
  G4int  code() const { return ((inter_case<0) ? -inter_case : 0); }
 
private:
  G4InuclParticle* bullet;
  G4InuclParticle* target;
 
  G4int inter_case;
};
 
#endif // G4INTERACTION_CASE_HH