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Support routing through multiple waypoints
[r2c2.git] / 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
15 class TrainRouter: public TrainAI
16 {
17 public:
18         class Loader: public Msp::DataFile::ObjectLoader<TrainRouter>
19         {
20         public:
21                 Loader(TrainRouter &);
22         private:
23                 void route(const std::string &);
24         };
25
26         sigc::signal<void, const Route *> signal_route_changed;
27         sigc::signal<void> signal_arrived;
28
29 private:
30         struct Wait
31         {
32                 Block *block;
33                 Train *train;
34
35                 Wait();
36         };
37
38         typedef std::list<const Route *> RouteList;
39
40         int priority;
41         RouteList routes;
42         unsigned arriving;
43         const TrackChain *destination;
44         std::vector<const TrackChain *> waypoints;
45         std::list<Wait> waits;
46         Msp::Time::TimeDelta delay;
47
48         bool update_pending;
49
50 public:
51         TrainRouter(Train &);
52
53         void set_priority(int);
54         int get_priority() const { return priority; }
55
56         bool set_route(const Route *);
57         void add_wait(Block &, Train *);
58         const Route *get_route() const;
59
60         void set_destination(const TrackChain &);
61         const TrackChain *get_destination() const { return destination; }
62         bool is_destination(Track &) const;
63         void add_waypoint(const TrackChain &);
64         unsigned get_n_waypoints() const { return waypoints.size(); }
65         bool is_waypoint(unsigned, Track &) const;
66         void set_departure_delay(const Msp::Time::TimeDelta &);
67         const Msp::Time::TimeDelta &get_departure_delay() const { return delay; }
68
69         virtual void message(const Message &);
70         virtual void tick(const Msp::Time::TimeDelta &);
71
72         void save(std::list<Msp::DataFile::Statement> &) const;
73
74 private:
75         void block_reserved(Block &, Train *);
76         void train_advanced(Block &);
77         const Route *get_route_for_block(const Block &) const;
78
79         Route *create_lead_route(Route *, const Route *);
80         bool advance_route(RouteList::iterator &, const Block &);
81         bool is_on_route(const Block &);
82
83         static void create_plans(Layout &);
84 };
85
86 } // namespace R2C2
87
88 #endif