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
36 Block *first_noncritical;
38 std::vector<TrainRouter::Waypoint> 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;
85 Msp::Time::TimeDelta estimated_wait;
88 TrainRoutingState(TrainRoutingInfo &);
89 TrainRoutingState(const TrainRoutingState &);
92 Msp::Time::TimeDelta get_time_to_next_track() const;
93 Msp::Time::TimeDelta get_time_to_pass(Track &) const;
94 bool is_occupying(Track &) const;
97 void advance(const Msp::Time::TimeDelta &);
98 void advance_track(unsigned);
99 void update_estimate();
100 bool is_viable() const;
105 Msp::Time::TimeDelta time;
106 Msp::Time::TimeDelta penalty;
107 Msp::Time::TimeDelta cost_estimate;
108 std::vector<TrainRoutingState> trains;
109 const RoutingStep *prev;
112 RoutingStep(const RoutingStep *);
114 void create_successors(std::list<RoutingStep> &) const;
115 static void create_successor(RoutingStep &, unsigned, unsigned, std::list<RoutingStep> &);
116 bool update_states();
117 bool check_deadlocks() const;
118 int get_occupant(Track &) const;
119 int find_next_train() const;
120 void advance(const Msp::Time::TimeDelta &);
121 void update_estimate();
122 bool is_viable() const;
123 bool is_goal() const;
125 bool operator<(const RoutingStep &) const;
128 class PlanningThread: public Msp::Thread
131 TrainRoutePlanner &planner;
134 PlanningThread(TrainRoutePlanner &);
140 std::vector<TrainRoutingInfo> routed_trains;
141 std::list<RoutingStep> steps;
142 std::list<RoutingStep> queue;
143 const RoutingStep *goal;
144 Msp::Time::TimeDelta timeout;
146 PlanningThread *thread;
149 TrainRoutePlanner(Layout &);
150 ~TrainRoutePlanner();
152 void set_timeout(const Msp::Time::TimeDelta &);
156 Result get_result() const { return result; }
157 const std::list<Route *> &get_routes_for(const Train &) const;
158 const std::list<TrainRouter::SequencePoint> &get_sequence_for(const Train &) const;
160 const TrainRoutingInfo &get_train_info(const Train &) const;
161 const RoutingStep &get_step();
164 void add_steps(const RoutingStep &);
165 void finalize_plan();