5 #include "trackchain.h"
6 #include "trainroutemetric.h"
7 #include "trainrouteplanner.h"
8 #include "trainrouter.h"
15 TrainRouter::TrainRouter(Train &t):
22 train.get_layout().signal_block_reserved.connect(sigc::mem_fun(this, &TrainRouter::block_reserved));
23 train.signal_advanced.connect(sigc::mem_fun(this, &TrainRouter::train_advanced));
26 TrainRouter::~TrainRouter()
28 for(vector<TrainRouteMetric *>::iterator i=metrics.begin(); i!=metrics.end(); ++i)
32 void TrainRouter::set_priority(int p)
37 bool TrainRouter::set_route(const Route *r)
39 BlockIter fncb = train.get_first_noncritical_block();
42 if(r && train.is_placed())
44 const BlockAllocator &allocator = train.get_block_allocator();
45 TrackIter first = allocator.first().track_iter();
46 TrackIter next = fncb.track_iter();
47 if(!r->has_track(*next))
49 lead = Route::find(next, *r);
52 create_lead_route(lead, lead);
54 else if(!r->has_track(*first))
55 lead = create_lead_route(0, r);
60 routes.push_back(lead);
66 /* TODO destination should also be cleared when manually setting a different
67 route, but not when the planner calls this. */
73 sequence_points.clear();
74 pending_sequence_checks.clear();
77 train.refresh_blocks_from(*fncb);
79 const Route *route = get_route();
80 signal_route_changed.emit(route);
81 signal_event.emit(Message("route-changed", route));
86 bool TrainRouter::add_route(const Route &r)
91 // TODO Check that it can be reached from previous routes
97 const Route *TrainRouter::get_route() const
101 return routes.front();
104 void TrainRouter::add_sequence_point(Block &b, unsigned o)
106 sequence_points.push_back(SequencePoint(b, o));
109 void TrainRouter::add_sequence_point(Block &b, Train &t, unsigned i, unsigned o)
111 SequencePoint sp(b, o);
112 sp.preceding_train = &t;
114 sequence_points.push_back(sp);
117 void TrainRouter::set_destination(const TrackChain &d)
120 update_pending = true;
123 bool TrainRouter::is_destination(Track &track) const
126 return destination->has_track(track);
131 void TrainRouter::add_waypoint(const TrackChain &wp)
133 waypoints.push_back(&wp);
134 update_pending = true;
137 bool TrainRouter::is_waypoint(unsigned index, Track &track) const
139 if(index>=waypoints.size())
140 throw out_of_range("TrainRouter::is_waypoint");
142 return waypoints[index]->has_track(track);
145 const TrainRouteMetric &TrainRouter::get_metric(int index) const
148 throw logic_error("no metrics");
149 else if(update_pending)
150 throw logic_error("metrics are stale");
153 return *metrics.front();
154 else if(static_cast<unsigned>(index)>=waypoints.size())
155 throw out_of_range("TrainRouter::get_metric");
157 return *metrics[index+1];
160 void TrainRouter::set_departure_delay(const Time::TimeDelta &d)
163 update_pending = true;
166 void TrainRouter::message(const Message &msg)
168 if(msg.type=="set-route")
170 if(msg.value.check_type<Route *>())
171 set_route(msg.value.value<Route *>());
173 set_route(msg.value.value<const Route *>());
175 else if(msg.type=="clear-route")
177 else if(msg.type=="set-destination")
179 if(msg.value.check_type<TrackChain *>())
180 set_destination(*msg.value.value<TrackChain *>());
182 set_destination(*msg.value.value<const TrackChain *>());
184 else if(msg.type=="add-waypoint")
186 if(msg.value.check_type<TrackChain *>())
187 add_waypoint(*msg.value.value<TrackChain *>());
189 add_waypoint(*msg.value.value<const TrackChain *>());
191 else if(msg.type=="set-departure-delay")
192 set_departure_delay(msg.value.value<Time::TimeDelta>());
195 void TrainRouter::tick(const Time::TimeDelta &dt)
200 if(delay<=Time::zero)
205 create_plans(train.get_layout());
207 for(list<SequencePoint *>::iterator i=pending_sequence_checks.begin(); i!=pending_sequence_checks.end(); ++i)
208 if((*i)->preceding_train->get_ai_of_type<TrainRouter>()->get_current_sequence()>=(*i)->sequence_in)
210 (*i)->preceding_train = 0;
211 if(*i==&sequence_points.front())
214 pending_sequence_checks.clear();
216 if(arriving==1 && !train.get_speed())
218 signal_arrived.emit(destination);
219 signal_event.emit(Message("arrived", destination));
222 else if(arriving==2 && !train.get_block_allocator().is_active())
226 void TrainRouter::save(list<DataFile::Statement> &st) const
228 st.push_back((DataFile::Statement("priority"), priority));
232 RouteList::const_iterator i = routes.begin();
233 for(; (i!=routes.end() && (*i)->is_temporary()); ++i) ;
235 st.push_back((DataFile::Statement("route"), (*i)->get_name()));
239 void TrainRouter::block_reserved(Block &block, Train *t)
246 TrainRouter *other_router = 0;
247 for(list<SequencePoint>::iterator i=sequence_points.begin(); i!=sequence_points.end(); ++i)
248 if(i->block==&block && i->preceding_train==t)
251 other_router = t->get_ai_of_type<TrainRouter>();
252 if(other_router->get_current_sequence()>=i->sequence_in)
254 i->preceding_train = 0;
255 if(i==sequence_points.begin())
259 pending_sequence_checks.push_back(&*i);
265 if(!sequence_points.empty())
267 SequencePoint &sp = sequence_points.front();
270 current_sequence = sp.sequence_out;
271 sequence_points.pop_front();
275 BlockIter b_iter = t->get_block_allocator().iter_for(block);
277 RouteList::iterator route = routes.begin();
278 if(advance_route(route, block))
280 // Check if the block is a turnout and set it to proper path
281 if(unsigned taddr = block.get_turnout_address())
283 int path = (*route)->get_turnout(taddr);
285 b_iter.track_iter()->set_active_path(path);
288 // Check if the next block is still part of the designated route
289 BlockIter b_iter_next = b_iter.next(*route);
291 RouteList::iterator next_route = route;
292 if(!advance_route(next_route, *b_iter_next))
294 train.stop_at(&block);
298 if(!sequence_points.empty())
300 SequencePoint &sp = sequence_points.front();
301 if(sp.preceding_train && sp.block==b_iter_next.block())
302 train.stop_at(&block);
307 void TrainRouter::train_advanced(Block &block)
309 BlockIter b_iter = train.get_block_allocator().iter_for(block);
311 // Check if we've reached the next route
314 Track &track = *b_iter.endpoint().track;
315 const Route *route = get_route();
316 bool change_route = false;
318 change_route = (*++routes.begin())->has_track(track);
320 change_route = !route->has_track(track);
327 signal_route_changed.emit(route);
328 signal_event.emit(Message("route-changed", route));
332 if(!waypoints.empty())
334 const TrackChain &wp = *waypoints.front();
335 TrackIter t_iter = b_iter.track_iter();
336 if(wp.has_track(*t_iter))
338 for(; t_iter; t_iter=t_iter.next())
340 if(!wp.has_track(*t_iter))
342 waypoints.erase(waypoints.begin());
343 signal_waypoint_reached.emit(&wp);
344 signal_event.emit(Message("waypoint-reached", &wp));
347 else if(!block.has_track(*t_iter))
355 b_iter = b_iter.next();
356 if(b_iter && !is_on_route(*b_iter))
361 const Route *TrainRouter::get_route_for_block(const Block &block) const
363 const set<Track *> &tracks = block.get_tracks();
364 for(RouteList::const_iterator i=routes.begin(); i!=routes.end(); ++i)
365 for(set<Track *>::const_iterator j=tracks.begin(); j!=tracks.end(); ++j)
366 if((*i)->has_track(**j))
372 void TrainRouter::create_metrics()
374 for(vector<TrainRouteMetric *>::iterator i=metrics.begin(); i!=metrics.end(); ++i)
381 metrics.push_back(new TrainRouteMetric(*destination));
382 for(vector<const TrackChain *>::const_iterator i=waypoints.begin(); i!=waypoints.end(); ++i)
383 metrics.push_back(new TrainRouteMetric(**i));
385 for(unsigned i=metrics.size(); --i>0; )
386 metrics[i]->chain_to(*metrics[(i+1)%metrics.size()]);
389 Route *TrainRouter::create_lead_route(Route *lead, const Route *target)
393 lead = new Route(train.get_layout());
394 lead->set_name("Lead");
395 lead->set_temporary(true);
398 bool target_reached = false;
399 for(TrackIter i=train.get_block_allocator().first().track_iter(); i; i=i.next())
401 if(i->get_block().get_train()!=&train)
405 if(target->has_track(*i))
406 target_reached = true;
407 else if(target_reached)
416 bool TrainRouter::advance_route(RouteList::iterator &iter, const Block &block)
418 const set<Track *> &tracks = block.get_tracks();
419 unsigned turnout_addr = block.get_turnout_address();
420 for(; iter!=routes.end(); ++iter)
422 if(turnout_addr && (*iter)->get_turnout(turnout_addr)<0)
424 for(set<Track *>::const_iterator j=tracks.begin(); j!=tracks.end(); ++j)
425 if((*iter)->has_track(**j))
432 bool TrainRouter::is_on_route(const Block &block)
434 RouteList::iterator iter = routes.begin();
435 return advance_route(iter, block);
438 void TrainRouter::create_plans(Layout &layout)
440 const map<unsigned, Train *> &trains = layout.get_trains();
441 for(map<unsigned, Train *>::const_iterator i=trains.begin(); i!=trains.end(); ++i)
442 if(TrainRouter *router = i->second->get_ai_of_type<TrainRouter>())
444 if(router->update_pending)
445 router->create_metrics();
446 router->update_pending = false;
449 TrainRoutePlanner planner(layout);
454 TrainRouter::SequencePoint::SequencePoint(Block &b, unsigned o):
462 TrainRouter::Loader::Loader(TrainRouter &r):
463 DataFile::ObjectLoader<TrainRouter>(r)
465 add("priority", &TrainRouter::priority);
466 add("route", &Loader::route);
469 void TrainRouter::Loader::route(const string &n)
471 obj.set_route(&obj.train.get_layout().get_route(n));