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         private:
  32                 bool state_bits_set;
  33
  34         public:
  35                 Loader(TrackType &);
  36         private:
  37                 virtual void finish();
  38                 void part();
  39                 void position(float, float, float);
  40                 void state_bits(unsigned);
  41         };
  42
  43 private:
  44         const TrackAppearance &appearance;
  45         std::vector<TrackPart> parts;
  46         std::vector<Endpoint> endpoints;
  47         unsigned state_bits;
  48         unsigned autofit_preference;
  49         std::string object;
  50
  51 public:
  52         TrackType(const ArticleNumber &, const TrackAppearance &);
  53
  54         const TrackAppearance &get_appearance() const { return appearance; }
  55         float get_total_length() const;
  56         float get_path_length(int) const;
  57         unsigned get_paths() const;
  58         unsigned get_n_paths() const;
  59         unsigned coerce_path(unsigned, unsigned) const;
  60         unsigned get_state_bits() const { return state_bits; }
  61         bool is_turnout() const;
  62         bool is_dead_end() const;
  63         unsigned get_autofit_preference() const { return autofit_preference; }
  64         const std::string &get_object() const { return object; }
  65         const std::vector<TrackPart> &get_parts() const { return parts; }
  66         const std::vector<Endpoint> &get_endpoints() const { return endpoints; }
  67         const Endpoint &get_endpoint(unsigned) const;
  68         OrientedPoint get_point(unsigned, unsigned, float) const;
  69         OrientedPoint get_nearest_point(const Vector &) const;
  70
  71 private:
  72         void collect_endpoints();
  73 };
  74
  75 } // namespace R2C2
  76
  77 #endif