1 #ifndef LIBR2C2_TRAINROUTEPLANNER_H_
2 #define LIBR2C2_TRAINROUTEPLANNER_H_
6 #include <msp/core/thread.h>
7 #include <msp/time/timedelta.h>
9 #include "trainrouter.h"
18 class TrainRoutePlanner
29 struct TrainRoutingState;
31 struct TrainRoutingInfo
35 Block *first_noncritical;
37 const TrackChain *destination;
38 std::vector<const TrackChain *> waypoints;
39 std::vector<const TrainRouteMetric *> metrics;
41 std::list<Route *> routes;
42 Track *track_history[2];
43 std::list<TrainRouter::SequencePoint> sequence;
45 TrainRoutingInfo(Train &);
56 OccupiedTrack(Track &, unsigned, OccupiedTrack *);
57 OccupiedTrack(const OccupiedTrack &);
69 struct TrainRoutingState
71 TrainRoutingInfo *info;
75 OccupiedTrack *occupied_tracks;
79 Msp::Time::TimeDelta delay;
80 Msp::Time::TimeDelta duration;
82 float distance_traveled;
83 float remaining_estimate;
84 Msp::Time::TimeDelta wait_time;
87 TrainRoutingState(TrainRoutingInfo &);
88 TrainRoutingState(const TrainRoutingState &);
91 Msp::Time::TimeDelta get_time_to_next_track() const;
92 bool is_occupying(Track &) const;
95 void advance(const Msp::Time::TimeDelta &);
96 void advance_track(unsigned);
97 void update_estimate();
102 Msp::Time::TimeDelta time;
103 Msp::Time::TimeDelta penalty;
104 Msp::Time::TimeDelta cost_estimate;
105 std::vector<TrainRoutingState> trains;
106 const RoutingStep *prev;
109 RoutingStep(const RoutingStep *);
111 void create_successors(std::list<RoutingStep> &) const;
112 bool update_states();
113 bool check_deadlocks() const;
114 int get_occupant(Track &) const;
115 int find_next_train() const;
116 void advance(const Msp::Time::TimeDelta &);
117 void update_estimate();
118 bool is_viable() const;
119 bool is_goal() const;
121 bool operator<(const RoutingStep &) const;
124 class PlanningThread: public Msp::Thread
127 TrainRoutePlanner &planner;
130 PlanningThread(TrainRoutePlanner &);
136 std::vector<TrainRoutingInfo> routed_trains;
137 std::list<RoutingStep> steps;
138 std::list<RoutingStep> queue;
139 const RoutingStep *goal;
141 PlanningThread *thread;
144 TrainRoutePlanner(Layout &);
145 ~TrainRoutePlanner();
150 Result get_result() const { return result; }
151 const std::list<Route *> &get_routes_for(const Train &) const;
152 const std::list<TrainRouter::SequencePoint> &get_sequence_for(const Train &) const;
154 const TrainRoutingInfo &get_train_info(const Train &) const;
155 const RoutingStep &get_step();
158 void add_steps(const RoutingStep &);
159 void finalize_plan();