fRandomized field added - needed by HBTAN

[u/mrichter/AliRoot.git] / EVGEN / AliGenFixed.cxx

diff --git a/EVGEN/AliGenFixed.cxx b/EVGEN/AliGenFixed.cxx
index 744cef294617a58c60b7bc2019f01cc13301ac69..4fab8afbf460b0c7a9ccbd3af87e9e95fa279a28 100644 (file)
--- a/EVGEN/AliGenFixed.cxx
+++ b/EVGEN/AliGenFixed.cxx
@@ -13,43 +13,18 @@
  * provided "as is" without express or implied warranty.                  *
  **************************************************************************/
 
-/*
-$Log$
-Revision 1.3  2000/11/30 07:12:50  alibrary
-Introducing new Rndm and QA classes
-
-Revision 1.2  2000/10/02 15:17:54  morsch
-Unused includes removed.
-
-Revision 1.1  2000/06/09 20:24:00  morsch
-Same class as previously in AliSimpleGen.cxx
-All coding rule violations except RS3 corrected (AM)
-
-*/
-
-
+/* $Id$ */
 
 // Simple particle gun. 
 // Momentum, phi and theta of the partice as well as the particle type can be set.
+// If fExplicit is true the user set momentum vector is used,
+// otherwise it is calculated.
 // andreas.morsch@cern.ch
-//Begin_Html
-/*
-<img src="picts/AliGeneratorClass.gif">
-</pre>
-<br clear=left>
-<font size=+2 color=red>
-<p>The responsible person for this module is
-<a href="mailto:andreas.morsch@cern.ch">Andreas Morsch</a>.
-</font>
-<pre>
-*/
-//End_Html
-//                                                               //
-///////////////////////////////////////////////////////////////////
+
+#include "TPDGCode.h"
 
 #include "AliGenFixed.h"
 #include "AliRun.h"
-#include "AliPDG.h"
   
 ClassImp(AliGenFixed)
 
@@ -61,6 +36,7 @@ AliGenFixed::AliGenFixed()
   // Default constructor
   //
   fIpart = 0;
+  fExplicit = kFALSE;
 }
 
 //_____________________________________________________________________________
@@ -74,6 +50,7 @@ AliGenFixed::AliGenFixed(Int_t npart)
   fTitle="Fixed Particle Generator";
   // Generate Proton by default
   fIpart=kProton;
+  fExplicit = kFALSE;
 }
 
 //_____________________________________________________________________________
@@ -83,18 +60,19 @@ void AliGenFixed::Generate()
   // Generate one trigger
   //
   Float_t polar[3]= {0,0,0};
-  Float_t p[3] = {fPMin*TMath::Cos(fPhiMin)*TMath::Sin(fThetaMin),
-                 fPMin*TMath::Sin(fPhiMin)*TMath::Sin(fThetaMin),
-                 fPMin*TMath::Cos(fThetaMin)};
+  if(!fExplicit) {
+    fP[0] = fPMin*TMath::Cos(fPhiMin)*TMath::Sin(fThetaMin);
+    fP[1] = fPMin*TMath::Sin(fPhiMin)*TMath::Sin(fThetaMin);
+    fP[2] = fPMin*TMath::Cos(fThetaMin);
+  }
   Int_t i, nt;
   //
-  for(i=0;i<fNpart;i++) {
-    gAlice->SetTrack(fTrackIt,-1,fIpart,p,fOrigin.GetArray(),polar,0,kPPrimary,nt);
-  }
+  for(i=0;i<fNpart;i++) 
+    PushTrack(fTrackIt,-1,fIpart,fP,fOrigin.GetArray(),polar,0,kPPrimary,nt);
 }
   
 //_____________________________________________________________________________
-void AliGenFixed::SetSigma(Float_t sx, Float_t sy, Float_t sz)
+void AliGenFixed::SetSigma(Float_t /*sx*/, Float_t /*sy*/, Float_t /*sz*/)
 {
   //
   // Set the interaction point sigma