source/libr2c2/tracktype.h

   1 #ifndef LIBR2C2_TRACKTYPE_H_
   2 #define LIBR2C2_TRACKTYPE_H_
   3
   4 #include <msp/datafile/objectloader.h>
   5 #include "articlenumber.h"
   6 #include "geometry.h"
   7 #include "objecttype.h"
   8 #include "trackpart.h"
   9
  10 namespace R2C2 {
  11
  12 class TrackAppearance;
  13
  14 class TrackType: public ObjectType
  15 {
  16 public:
  17         struct Endpoint
  18         {
  19                 Vector pos;
  20                 Angle dir;  // Direction outwards from the endpoint
  21                 unsigned paths;
  22
  23                 Endpoint(float, float, const Angle &, unsigned);
  24
  25                 bool has_path(unsigned p) const { return paths&(1<<p); }
  26                 bool has_common_paths(const Endpoint &e) const { return paths&e.paths; }
  27         };
  28
  29         class Loader: public Msp::DataFile::DerivedObjectLoader<TrackType, ObjectType::Loader>
  30         {
  31         public:
  32                 typedef Msp::DataFile::Collection Collection;
  33
  34         private:
  35                 Collection &coll;
  36                 bool state_bits_set;
  37
  38         public:
  39                 Loader(TrackType &, Collection &);
  40
  41                 virtual Collection &get_collection() const { return coll; }
  42         private:
  43                 virtual void finish();
  44                 void appearance(const std::string &);
  45                 void part();
  46                 void state_bits(unsigned);
  47         };
  48
  49 private:
  50         const TrackAppearance *appearance;
  51         std::vector<TrackPart> parts;
  52         std::vector<Endpoint> endpoints;
  53         unsigned state_bits;
  54         unsigned autofit_preference;
  55         std::string object;
  56
  57 public:
  58         TrackType();
  59
  60         const TrackAppearance &get_appearance() const;
  61         float get_gauge() const;
  62         float get_total_length() const;
  63         float get_path_length(int) const;
  64         unsigned get_paths() const;
  65         unsigned get_n_paths() const;
  66         unsigned coerce_path(unsigned, unsigned) const;
  67         unsigned get_state_bits() const { return state_bits; }
  68         bool is_turnout() const;
  69         bool is_dead_end() const;
  70         unsigned get_autofit_preference() const { return autofit_preference; }
  71         const std::string &get_object() const { return object; }
  72         const std::vector<TrackPart> &get_parts() const { return parts; }
  73         const std::vector<Endpoint> &get_endpoints() const { return endpoints; }
  74         const Endpoint &get_endpoint(unsigned) const;
  75         OrientedPoint get_point(unsigned, unsigned, float) const;
  76         OrientedPoint get_nearest_point(const Vector &) const;
  77
  78 private:
  79         void collect_endpoints();
  80 };
  81
  82 } // namespace R2C2
  83
  84 #endif