source/libr2c2/vehicle.h

   1 #ifndef LIBR2C2_VEHICLE_H_
   2 #define LIBR2C2_VEHICLE_H_
   3
   4 #include "geometry.h"
   5 #include "vehicletype.h"
   6
   7 namespace R2C2 {
   8
   9 class Layout;
  10 class Track;
  11
  12 class Vehicle
  13 {
  14 public:
  15         enum PlaceMode
  16         {
  17                 CENTER,
  18                 FRONT_AXLE,
  19                 FRONT_BUFFER,
  20                 BACK_AXLE,
  21                 BACK_BUFFER
  22         };
  23
  24         struct Axle
  25         {
  26                 const VehicleType::Axle *type;
  27                 float angle;
  28
  29                 Axle(const VehicleType::Axle &);
  30         };
  31
  32         struct Bogie
  33         {
  34                 const VehicleType::Bogie *type;
  35                 float direction;
  36                 std::vector<Axle> axles;
  37
  38                 Bogie(const VehicleType::Bogie &);
  39         };
  40
  41         struct Rod
  42         {
  43                 const VehicleType::Rod *type;
  44                 Vector position;
  45                 float angle;
  46
  47                 Rod(const VehicleType::Rod &);
  48         };
  49
  50 private:
  51         struct TrackPosition
  52         {
  53                 Track *track;
  54                 unsigned ep;
  55                 float offs;
  56
  57                 TrackPosition();
  58                 TrackPosition(Track *, unsigned, float);
  59                 void advance(float);
  60                 TrackPoint get_point() const;
  61         };
  62
  63         Layout &layout;
  64         const VehicleType &type;
  65         Vehicle *next;
  66         Vehicle *prev;
  67         TrackPosition track_pos;
  68         Vector position;
  69         float direction;
  70         std::vector<Axle> axles;
  71         std::vector<Bogie> bogies;
  72         std::vector<Rod> rods;
  73         unsigned front_sensor;
  74         unsigned back_sensor;
  75
  76 public:
  77         Vehicle(Layout &, const VehicleType &);
  78         ~Vehicle();
  79
  80         const VehicleType &get_type() const { return type; }
  81
  82         void attach_back(Vehicle &);
  83         void attach_front(Vehicle &);
  84         void detach_back();
  85         void detach_front();
  86         Vehicle *get_next() const { return next; }
  87         Vehicle *get_previous() const { return prev; }
  88
  89         void place(Track &, unsigned, float, PlaceMode = CENTER);
  90         void unplace();
  91         void advance(float);
  92         Track *get_track() const { return track_pos.track; }
  93         unsigned get_entry() const { return track_pos.ep; }
  94         float get_offset() const { return track_pos.offs; }
  95         const Vector &get_position() const { return position; }
  96         float get_direction() const { return direction; }
  97         const Axle &get_fixed_axle(unsigned) const;
  98         const Bogie &get_bogie(unsigned) const;
  99         const Axle &get_bogie_axle(unsigned, unsigned) const;
 100         const Rod &get_rod(unsigned) const;
 101 private:
 102         void update_position();
 103         void update_position_from(const Vehicle &);
 104         void propagate_position();
 105         void propagate_forward();
 106         void propagate_backward();
 107         void check_sensor(float, unsigned &);
 108         void turn_axles(float);
 109         void update_rods();
 110
 111         void adjust_for_distance(TrackPosition &, TrackPosition &, float, float = 0.5) const;
 112         TrackPoint get_point(const Vector &, const Vector &, float = 0.5) const;
 113         TrackPoint get_point(const TrackPosition &, float, float = 0.5) const;
 114 };
 115
 116 } // namespace R2C2
 117
 118 #endif