00001 // 00002 // ******************************************************************** 00003 // * License and Disclaimer * 00004 // * * 00005 // * The Geant4 software is copyright of the Copyright Holders of * 00006 // * the Geant4 Collaboration. It is provided under the terms and * 00007 // * conditions of the Geant4 Software License, included in the file * 00008 // * LICENSE and available at http://cern.ch/geant4/license . These * 00009 // * include a list of copyright holders. * 00010 // * * 00011 // * Neither the authors of this software system, nor their employing * 00012 // * institutes,nor the agencies providing financial support for this * 00013 // * work make any representation or warranty, express or implied, * 00014 // * regarding this software system or assume any liability for its * 00015 // * use. Please see the license in the file LICENSE and URL above * 00016 // * for the full disclaimer and the limitation of liability. * 00017 // * * 00018 // * This code implementation is the result of the scientific and * 00019 // * technical work of the GEANT4 collaboration. * 00020 // * By using, copying, modifying or distributing the software (or * 00021 // * any work based on the software) you agree to acknowledge its * 00022 // * use in resulting scientific publications, and indicate your * 00023 // * acceptance of all terms of the Geant4 Software license. * 00024 // ******************************************************************** 00025 // 00026 // $Id$ 00027 // 00028 // 20100518 M. Kelsey -- Move code from Colliders' "bulletTargetSetter()" 00029 // to setBulletTarget(). 00030 00031 #include "G4InteractionCase.hh" 00032 #include "G4InuclParticle.hh" 00033 #include "G4InuclElementaryParticle.hh" 00034 #include "G4InuclNuclei.hh" 00035 00036 00037 // Evaluate concrete types of input particles and assign bullet, target 00038 00039 void G4InteractionCase::set(G4InuclParticle* part1, 00040 G4InuclParticle* part2) { 00041 clear(); // Reset everything in case of failure 00042 00043 // See which one of the two (or both) is a nucleus 00044 G4InuclNuclei* nucl1 = dynamic_cast<G4InuclNuclei*>(part1); 00045 G4InuclNuclei* nucl2 = dynamic_cast<G4InuclNuclei*>(part2); 00046 00047 G4InuclElementaryParticle* had1 = dynamic_cast<G4InuclElementaryParticle*>(part1); 00048 G4InuclElementaryParticle* had2 = dynamic_cast<G4InuclElementaryParticle*>(part2); 00049 00050 if (nucl1 && nucl2) { // Nuclear collision, lighter is projectile 00051 inter_case = -2; 00052 if (nucl2->getA() >= nucl1->getA()) { 00053 bullet = part1; 00054 target = part2; 00055 } else { 00056 bullet = part2; 00057 target = part1; 00058 } 00059 } else if (nucl1 || nucl2) { // Hadron on nucleus, hadron projectile 00060 inter_case = -1; 00061 if (nucl1 && had2) { 00062 bullet = part2; 00063 target = part1; 00064 } else { 00065 bullet = part1; 00066 target = part2; 00067 } 00068 } else if (had1 && had2) { // Hadron-hadron interaction, order irrelevant 00069 inter_case = had1->type() * had2->type(); 00070 bullet = part1; 00071 target = part2; 00072 } 00073 }