PHHepMCParticleSelectorDecayProductChain.h

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#ifndef PHHEPMC_PHHEPMCPARTICLESELECTORDECAYPRODUCTCHAIN_H
#define PHHEPMC_PHHEPMCPARTICLESELECTORDECAYPRODUCTCHAIN_H

#include <fun4all/SubsysReco.h>

#include <string>                // for string
#include <vector>

class PHCompositeNode;

namespace HepMC
{
class GenParticle;
class GenEvent;
}  // namespace HepMC
class PHHepMCParticleSelectorDecayProductChain : public SubsysReco
{
 public:
  PHHepMCParticleSelectorDecayProductChain(const std::string& name = "PARTICLESELECTOR");
  ~PHHepMCParticleSelectorDecayProductChain() override {}

  int InitRun(PHCompositeNode* topNode) override;
  int process_event(PHCompositeNode* topNode) override;

  virtual void SetParticle(const int pid);

  virtual void AddAncestor(const int pid);

  virtual void AddDaughter(const int pid);

  int get_embedding_id() const { return _embedding_id; }
  //
  void set_embedding_id(int id) { _embedding_id = id; }

 protected:
  HepMC::GenParticle* GetParent(HepMC::GenParticle* p, HepMC::GenEvent* event);

  int _theParticle;
  std::vector<int> _theDaughters;
  std::vector<int> _theAncestors;

  int _embedding_id;
};

#endif