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                 TrackIter track_iter() const;
  36         };
  37
  38         sigc::signal<void, Train *> signal_reserved;
  39         sigc::signal<void, State> signal_state_changed;
  40
  41 private:
  42         Layout &layout;
  43         unsigned id;
  44         unsigned sensor_id;
  45         unsigned turnout_id;
  46         State state;
  47         Msp::Time::TimeDelta state_confirm_timeout;
  48         std::set<Track *> tracks;
  49         std::vector<Endpoint> endpoints;
  50         Train *train;
  51
  52 public:
  53         Block(Layout &, Track &);
  54         ~Block();
  55
  56         unsigned get_id() const { return id; }
  57         unsigned get_sensor_id() const { return sensor_id; }
  58         unsigned get_turnout_id() const { return turnout_id; }
  59         State get_state() const { return state; }
  60         const std::set<Track *> &get_tracks() const { return tracks; }
  61         bool has_track(Track &) const;
  62         const std::vector<Endpoint> &get_endpoints() const { return endpoints; }
  63         const Endpoint &get_endpoint(unsigned) const;
  64         int get_endpoint_by_link(Block &) const;
  65         float get_path_length(unsigned, const Route * = 0) const;
  66         void check_link(Block &);
  67         void break_link(Block &);
  68         Block *get_link(unsigned) const;
  69         bool reserve(Train *);
  70         Train *get_train() const { return train; }
  71         void tick(const Msp::Time::TimeDelta &);
  72 private:
  73         void find_paths(const TrackIter &, unsigned);
  74         void determine_id();
  75         void sensor_event(unsigned, bool);
  76 };
  77
  78 } // namespace R2C2
  79
  80 #endif