zero_one_pdbs.h

#ifndef PDBS_ZERO_ONE_PDBS_H
#define PDBS_ZERO_ONE_PDBS_H
 
#include "downward/pdbs/types.h"
 
class State;
class TaskProxy;
 
namespace utils {
class LogProxy;
}
 
namespace pdbs {
class ZeroOnePDBs {
    PDBCollection pattern_databases;
 
public:
    ZeroOnePDBs(const TaskProxy& task_proxy, const PatternCollection& patterns);
    ~ZeroOnePDBs() = default;
 
    int get_value(const State& state) const;
    /*
      Returns the sum of all mean finite h-values of every PDB.
      This is an approximation of the real mean finite h-value of the Heuristic,
      because dead-ends are ignored for the computation of the mean finite
      h-values for a PDB. As a consequence, if different PDBs have different
      states which are dead-end, we do not calculate the real mean h-value for
      these states.
    */
    double compute_approx_mean_finite_h() const;
    void dump(utils::LogProxy& log) const;
};
} // namespace pdbs
 
#endif