coding convention crrections
[u/mrichter/AliRoot.git] / STEER / AliHit.cxx
CommitLineData
4c039060 1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
15
acd84897 16/* $Id$ */
4c039060 17
116cbefd 18//-----------------------------------------------------------------------
19//
20// Base Hit class for all detectors
21//
22//-----------------------------------------------------------------------
23
1578254f 24#include "TParticle.h"
e2afb3b6 25
26#include "AliHit.h"
fe4da5cc 27#include "AliRun.h"
effc3ed5 28
fe4da5cc 29ClassImp(AliHit)
30
e2afb3b6 31//_______________________________________________________________________
32AliHit::AliHit():
33 fTrack(0),
34 fX(0),
35 fY(0),
36 fZ(0)
fe4da5cc 37{
8918e700 38 //
39 // Default constructor
40 //
fe4da5cc 41}
42
e2afb3b6 43//_______________________________________________________________________
44AliHit::AliHit(Int_t shunt, Int_t track):
45 fTrack(0),
46 fX(0),
47 fY(0),
48 fZ(0)
fe4da5cc 49{
8918e700 50 //
51 // Standard constructor
52 //
effc3ed5 53 if(shunt == 1) {
fe4da5cc 54 int primary = gAlice->GetPrimary(track);
2ab0c725 55 gAlice->Particle(primary)->SetBit(kKeepBit);
fe4da5cc 56 fTrack=primary;
effc3ed5 57 }
58
59 else if (shunt == 2) {
60 // the "primary" particle associated to the hit is
61 // the last track that has been flagged in the StepManager
62 // used by PHOS to associate the hit with the decay gamma
63 // rather than with the original pi0
64 TParticle *part;
65 Int_t current;
66 Int_t parent=track;
67 while (1) {
68 current=parent;
69 part = gAlice->Particle(current);
70 parent=part->GetFirstMother();
71 if(parent<0 || part->TestBit(kKeepBit))
72 break;
73 }
74 fTrack=current;
75 }
76
77 else {
fe4da5cc 78 fTrack=track;
79 gAlice->FlagTrack(fTrack);
80 }
81}