source/libr2c2/block.h

   1 #ifndef LIBR2C2_BLOCK_H_
   2 #define LIBR2C2_BLOCK_H_
   3
   4 #include <list>
   5 #include <set>
   6 #include "track.h"
   7
   8 namespace R2C2 {
   9
  10 class Layout;
  11 class Route;
  12 class TrackIter;
  13 class Train;
  14
  15 class Block: public sigc::trackable
  16 {
  17 public:
  18         enum State
  19         {
  20                 INACTIVE,
  21                 MAYBE_INACTIVE,
  22                 MAYBE_ACTIVE,
  23                 ACTIVE
  24         };
  25
  26         struct Endpoint
  27         {
  28                 Track *track;
  29                 unsigned track_ep;
  30                 Block *link;
  31                 unsigned paths;
  32
  33                 Endpoint(Track *, unsigned);
  34         };
  35
  36         sigc::signal<void, Train *> signal_reserved;
  37         sigc::signal<void, State> signal_state_changed;
  38
  39 private:
  40         Layout &layout;
  41         unsigned id;
  42         unsigned sensor_id;
  43         unsigned turnout_id;
  44         State state;
  45         Msp::Time::TimeDelta state_confirm_timeout;
  46         std::set<Track *> tracks;
  47         std::vector<Endpoint> endpoints;
  48         Train *train;
  49
  50 public:
  51         Block(Layout &, Track &);
  52         ~Block();
  53
  54         unsigned get_id() const { return id; }
  55         unsigned get_sensor_id() const { return sensor_id; }
  56         unsigned get_turnout_id() const { return turnout_id; }
  57         State get_state() const { return state; }
  58         const std::set<Track *> &get_tracks() const { return tracks; }
  59         bool has_track(Track &) const;
  60         const std::vector<Endpoint> &get_endpoints() const { return endpoints; }
  61         const Endpoint &get_endpoint(unsigned) const;
  62         int get_endpoint_by_link(Block &) const;
  63         float get_path_length(unsigned, const Route * = 0) const;
  64         void check_link(Block &);
  65         void break_link(Block &);
  66         Block *get_link(unsigned) const;
  67         bool reserve(Train *);
  68         Train *get_train() const { return train; }
  69         void tick(const Msp::Time::TimeDelta &);
  70 private:
  71         void find_paths(TrackIter, unsigned);
  72         void determine_id();
  73         void sensor_event(unsigned, bool);
  74 };
  75
  76 } // namespace R2C2
  77
  78 #endif