IHGTD_ClusterTruthTool.h

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#ifndef IHGTD_CLUSTERTRUTHTOOL_H
#define IHGTD_CLUSTERTRUTHTOOL_H
 
#include "GaudiKernel/IAlgTool.h"
 
#include "xAODTruth/TruthParticle.h"
#include "AtlasHepMC/GenEvent.h"
 
 
class InDetSimDataCollection;
 
class HGTD_Cluster;
 
namespace HGTD {
enum class ClusterTruthOrigin {
  UNIDENTIFIED = 0,
  TRUTH_PARTICLE = 1, // originates from the tested truth particle
  HARD_SCATTER = 2,   // originates from a HS particle, but unclear which
  PILEUP = 3,         // originates from a pileup interaction
  SECONDARY = 4       // originates from some secondary interaction
};
 
struct ClusterTruthInfo {
  ClusterTruthOrigin origin = ClusterTruthOrigin::UNIDENTIFIED;
  bool is_shadowed = false;
  bool is_merged = false;
};
} // namespace HGTD
 
class IHGTD_ClusterTruthTool : virtual public IAlgTool {
 
public:
  DeclareInterfaceID(IHGTD_ClusterTruthTool, 1, 0);

  virtual HGTD::ClusterTruthInfo
  classifyCluster(const HGTD_Cluster* cluster,
                  const xAOD::TruthParticle* tp,
                  const InDetSimDataCollection* sim_data,
                  const HepMC::GenEvent* hard_scatter_evnt = nullptr) const = 0;
};
 
#endif // IHGTD_CLUSTERTRUTHTOOL_H