source/libr2c2/trainroutemetric.h

   1 #ifndef LIBR2C2_TRAINROUTEMETRIC_H_
   2 #define LIBR2C2_TRAINROUTEMETRIC_H_
   3
   4 #include <map>
   5 #include <vector>
   6
   7 namespace R2C2 {
   8
   9 class Layout;
  10 class Track;
  11 class TrackChain;
  12
  13 // Metrics store iterators facing away from the goal
  14 class TrainRouteMetric
  15 {
  16 private:
  17         typedef std::pair<const Track *, unsigned> Key;
  18
  19         struct Goal
  20         {
  21                 TrackIter track;
  22                 float base_distance;
  23
  24                 Goal();
  25                 Goal(const TrackIter &);
  26         };
  27
  28         struct Data
  29         {
  30                 float distance;
  31                 const Goal *goal;
  32
  33                 Data();
  34                 Data(float, const Goal *);
  35         };
  36
  37         std::vector<Goal> goals;
  38         std::map<Key, Data> tracks;
  39
  40 public:
  41         TrainRouteMetric() { }
  42         TrainRouteMetric(const TrackChain &);
  43
  44         void chain_to(const TrainRouteMetric &);
  45         float get_distance_from(const Track &, unsigned) const;
  46 };
  47
  48 } // namespace R2C2
  49
  50 #endif