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 std::vector<TrainRouter::Waypoint> waypoints;
38 std::vector<const TrainRouteMetric *> metrics;
40 std::list<Route *> routes;
41 Track *track_history[2];
42 std::list<TrainRouter::SequencePoint> sequence;
44 TrainRoutingInfo(Train &);
55 OccupiedTrack(Track &, unsigned, OccupiedTrack *);
56 OccupiedTrack(const OccupiedTrack &);
68 struct TrainRoutingState
70 TrainRoutingInfo *info;
74 OccupiedTrack *occupied_tracks;
78 Msp::Time::TimeDelta delay;
79 Msp::Time::TimeDelta duration;
81 float distance_traveled;
82 float remaining_estimate;
83 Msp::Time::TimeDelta wait_time;
86 TrainRoutingState(TrainRoutingInfo &);
87 TrainRoutingState(const TrainRoutingState &);
90 Msp::Time::TimeDelta get_time_to_next_track() const;
91 bool is_occupying(Track &) const;
94 void advance(const Msp::Time::TimeDelta &);
95 void advance_track(unsigned);
96 void update_estimate();
97 bool is_viable() const;
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 static void create_successor(RoutingStep &, unsigned, unsigned, std::list<RoutingStep> &);
113 bool update_states();
114 bool check_deadlocks() const;
115 int get_occupant(Track &) const;
116 int find_next_train() const;
117 void advance(const Msp::Time::TimeDelta &);
118 void update_estimate();
119 bool is_viable() const;
120 bool is_goal() const;
122 bool operator<(const RoutingStep &) const;
125 class PlanningThread: public Msp::Thread
128 TrainRoutePlanner &planner;
131 PlanningThread(TrainRoutePlanner &);
137 std::vector<TrainRoutingInfo> routed_trains;
138 std::list<RoutingStep> steps;
139 std::list<RoutingStep> queue;
140 const RoutingStep *goal;
141 Msp::Time::TimeDelta timeout;
143 PlanningThread *thread;
146 TrainRoutePlanner(Layout &);
147 ~TrainRoutePlanner();
149 void set_timeout(const Msp::Time::TimeDelta &);
153 Result get_result() const { return result; }
154 const std::list<Route *> &get_routes_for(const Train &) const;
155 const std::list<TrainRouter::SequencePoint> &get_sequence_for(const Train &) const;
157 const TrainRoutingInfo &get_train_info(const Train &) const;
158 const RoutingStep &get_step();
161 void add_steps(const RoutingStep &);
162 void finalize_plan();