source/libr2c2/trainrouter.h

   1 #ifndef LIBR2C2_TRAINROUTER_H_
   2 #define LIBR2C2_TRAINROUTER_H_
   3
   4 #include <list>
   5 #include <msp/datafile/objectloader.h>
   6 #include "trainai.h"
   7
   8 namespace R2C2 {
   9
  10 class Block;
  11 class Layout;
  12 class Track;
  13 class TrackChain;
  14 class TrainRouteMetric;
  15 class TrainRoutePlanner;
  16
  17 class TrainRouter: public TrainAI
  18 {
  19 public:
  20         class Loader: public Msp::DataFile::ObjectLoader<TrainRouter>
  21         {
  22         public:
  23                 Loader(TrainRouter &);
  24         private:
  25                 void route(const std::string &);
  26         };
  27
  28         sigc::signal<void, const Route *> signal_route_changed;
  29         sigc::signal<void, const TrackChain *> signal_arrived;
  30         sigc::signal<void, const TrackChain *> signal_waypoint_reached;
  31
  32         struct SequencePoint
  33         {
  34                 Block *block;
  35                 Train *preceding_train;
  36                 unsigned sequence_in;
  37                 unsigned sequence_out;
  38
  39                 SequencePoint(Block &, unsigned);
  40         };
  41
  42 private:
  43         typedef std::list<const Route *> RouteList;
  44
  45         int priority;
  46         RouteList routes;
  47         unsigned arriving;
  48         const TrackChain *destination;
  49         std::vector<const TrackChain *> waypoints;
  50         bool destination_changed;
  51         std::vector<TrainRouteMetric *> metrics;
  52         bool metrics_stale;
  53         std::list<SequencePoint> sequence_points;
  54         std::list<SequencePoint *> pending_sequence_checks;
  55         unsigned current_sequence;
  56         Msp::Time::TimeDelta delay;
  57         Msp::RefPtr<TrainRoutePlanner> planner;
  58
  59 public:
  60         TrainRouter(Train &);
  61         ~TrainRouter();
  62
  63         void set_priority(int);
  64         int get_priority() const { return priority; }
  65
  66         bool set_route(const Route *);
  67         const Route *get_route() const;
  68         unsigned get_current_sequence() const { return current_sequence; }
  69 private:
  70         void route_changed();
  71
  72 public:
  73         void set_destination(const TrackChain &);
  74         const TrackChain *get_destination() const { return destination; }
  75         bool is_destination(Track &) const;
  76         void add_waypoint(const TrackChain &);
  77         unsigned get_n_waypoints() const { return waypoints.size(); }
  78         bool is_waypoint(unsigned, Track &) const;
  79         const TrainRouteMetric &get_metric(int = -1) const;
  80         void set_departure_delay(const Msp::Time::TimeDelta &);
  81         const Msp::Time::TimeDelta &get_departure_delay() const { return delay; }
  82
  83         virtual void message(const Message &);
  84         virtual void tick(const Msp::Time::TimeDelta &);
  85
  86         void save(std::list<Msp::DataFile::Statement> &) const;
  87
  88 private:
  89         void block_reserved(Block &, Train *);
  90         void train_advanced(Block &);
  91         const Route *get_route_for_block(const Block &) const;
  92
  93         void create_metrics();
  94         Route *create_lead_route(Route *, const Route *);
  95         bool advance_route(RouteList::iterator &, const Block &);
  96         bool is_on_route(const Block &);
  97
  98         static void start_planning(Layout &);
  99 };
 100
 101 } // namespace R2C2
 102
 103 #endif