1 #ifndef AliGenCocktailAfterBurner_H
2 #define AliGenCocktailAfterBurner_H
3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
8 // Container class for AliGenerator through recursion.
9 // (Container is itself an AliGenerator)
10 // Author: piotr.skowronski@cern.ch
13 #include <TMCProcess.h>
15 #include "AliGenCocktail.h"
16 #include "AliRunLoader.h"
18 class AliGenCocktailEntry;
20 class AliCollisionGeometry;
21 class AliGenCocktailEventHeader;
24 class AliGenCocktailAfterBurner : public AliGenCocktail
26 //container class for other generators
27 //extends AliGenCocktail functionality
28 //with possiblity of adding after-burners
31 AliGenCocktailAfterBurner();
32 virtual ~AliGenCocktailAfterBurner();
35 virtual void Generate();
36 virtual void SetTracks(Int_t stackno);
38 // Add a new generator to the list
39 virtual void AddAfterBurner
40 (AliGenerator *Generator, char* Name, Float_t RateExp );
42 AliStack* GetStack(Int_t n) const;
43 AliStack* GetActiveStack() const{return fActiveStack;}
45 AliCollisionGeometry* GetCollisionGeometry(Int_t n) const;
47 AliGenerator* GetCurrentGenerator() const;
48 virtual void SetActiveEventNumber(Int_t actev);
49 Int_t GetActiveEventNumber() const {return fActiveEvent;}
50 virtual Int_t GetNumberOfEvents() const {return AliRunLoader::Instance()->GetNumberOfEventsPerRun() + fNBgEvents;}
51 void SetNBgEvents(Int_t nbg=0){fNBgEvents = nbg;}
52 AliGenCocktailEventHeader* GetActiveEventHeader() const { return fHeaders[fActiveEvent]; }
54 static TMCProcess IntToMCProcess(Int_t no);
57 Int_t fNAfterBurners; // Number of afterburners
58 TList *fAfterBurnerEntries;// List of afterburners
59 Bool_t fGenerationDone; // flag if generation is already done
60 // during first call of Generate method
61 // if true just return event to gAlice
63 TObjArray *fInternalStacks; //! List of internal stacks
65 AliCollisionGeometry** fCollisionGeometries; //! List of Collision Geometries
66 AliGenCocktailEventHeader** fHeaders; //! List of Headers
68 Int_t fCurrentEvent; // Number of current event/stack
71 AliStack* fActiveStack; //! pointer to the current stack
72 Int_t fActiveEvent; //HBT Processor needs more then one event to do correlations
73 //Due to complications in fortran, it first calls C routine
74 //that sets the active event to be read. All alihbtp_gettrack
75 //are addressed to this event
77 AliGenerator *fCurrentGenerator; // Current event generator
78 Int_t fNBgEvents; //Nuber of backgrouns events
79 //(events that are generated only temporarly)
80 //needed by some afterburners that works better with higher statistics
81 //this generates such a artificial one
83 AliGenCocktailAfterBurner(const AliGenCocktailAfterBurner& in);
84 AliGenCocktailAfterBurner & operator=(const AliGenCocktailAfterBurner & rhs);
86 ClassDef(AliGenCocktailAfterBurner,2) // Particle cocktail generator a la SHAKER
87 //background events added
91 AliGenCocktailAfterBurner::GetCurrentGenerator() const
93 return fCurrentGenerator;