5 #include "trackchain.h"
6 #include "trainroutemetric.h"
7 #include "trainrouteplanner.h"
8 #include "trainrouter.h"
15 TrainRouter::TrainRouter(Train &t):
20 destination_changed(false),
23 sequence_check_pending(false)
25 train.get_layout().signal_block_reserved.connect(sigc::mem_fun(this, &TrainRouter::block_reserved));
26 train.signal_advanced.connect(sigc::mem_fun(this, &TrainRouter::train_advanced));
29 TrainRouter::~TrainRouter()
31 for(vector<TrainRouteMetric *>::iterator i=metrics.begin(); i!=metrics.end(); ++i)
35 void TrainRouter::set_priority(int p)
40 bool TrainRouter::set_route(const Route *r)
42 BlockIter fncb = train.get_first_noncritical_block();
45 if(r && train.is_placed())
47 const BlockAllocator &allocator = train.get_block_allocator();
48 TrackIter first = allocator.first().track_iter();
49 TrackIter next = fncb.track_iter();
50 if(!r->has_track(*next))
52 lead = Route::find(next, *r);
55 create_lead_route(lead, lead);
57 else if(!r->has_track(*first))
58 lead = create_lead_route(0, r);
63 routes.push_back(lead);
69 sequence_points.clear();
71 sequence_check_pending = false;
78 const Route *TrainRouter::get_route() const
82 return routes.front();
85 void TrainRouter::route_changed()
89 BlockIter fncb = train.get_first_noncritical_block();
90 train.refresh_blocks_from(*fncb);
92 const Route *route = get_route();
93 signal_route_changed.emit(route);
94 signal_event.emit(Message("route-changed", route));
97 void TrainRouter::set_destination(const TrackChain &d)
100 destination_changed = true;
101 metrics_stale = true;
104 bool TrainRouter::is_destination(Track &track) const
107 return destination->has_track(track);
112 void TrainRouter::add_waypoint(const TrackChain &wp)
114 waypoints.push_back(&wp);
115 destination_changed = true;
116 metrics_stale = true;
119 bool TrainRouter::is_waypoint(unsigned index, Track &track) const
121 if(index>=waypoints.size())
122 throw out_of_range("TrainRouter::is_waypoint");
124 return waypoints[index]->has_track(track);
127 const TrainRouteMetric &TrainRouter::get_metric(int index) const
130 throw logic_error("no metrics");
131 else if(metrics_stale)
132 throw logic_error("metrics are stale");
135 return *metrics.front();
136 else if(static_cast<unsigned>(index)>=waypoints.size())
137 throw out_of_range("TrainRouter::get_metric");
139 return *metrics[index+1];
142 void TrainRouter::set_departure_delay(const Time::TimeDelta &d)
145 destination_changed = true;
148 void TrainRouter::message(const Message &msg)
150 if(msg.type=="set-route")
152 if(msg.value.check_type<Route *>())
153 set_route(msg.value.value<Route *>());
155 set_route(msg.value.value<const Route *>());
157 else if(msg.type=="clear-route")
159 else if(msg.type=="set-destination")
161 if(msg.value.check_type<TrackChain *>())
162 set_destination(*msg.value.value<TrackChain *>());
164 set_destination(*msg.value.value<const TrackChain *>());
166 else if(msg.type=="add-waypoint")
168 if(msg.value.check_type<TrackChain *>())
169 add_waypoint(*msg.value.value<TrackChain *>());
171 add_waypoint(*msg.value.value<const TrackChain *>());
173 else if(msg.type=="set-departure-delay")
174 set_departure_delay(msg.value.value<Time::TimeDelta>());
177 void TrainRouter::tick(const Time::TimeDelta &dt)
182 if(delay<=Time::zero)
186 if(destination_changed)
189 start_planning(train.get_layout());
190 else if(planner->get_result()!=TrainRoutePlanner::PENDING)
192 destination_changed = false;
193 if(planner->get_result()==TrainRoutePlanner::COMPLETE)
195 const list<Route *> &planned_routes = planner->get_routes_for(train);
197 routes.push_back(create_lead_route(0, planned_routes.front()));
198 routes.insert(routes.end(), planned_routes.begin(), planned_routes.end());
199 sequence_points = planner->get_sequence_for(train);
200 current_sequence = 0;
201 sequence_check_pending = false;
209 if(sequence_check_pending)
211 if(sequence_points.front().is_cleared())
213 sequence_check_pending = false;
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 SequencePoint &sp = sequence_points.front();
247 if(sp.preceding_train==t && sp.block==&block)
252 sequence_check_pending = true;
258 if(!sequence_points.empty())
260 SequencePoint &sp = sequence_points.front();
263 current_sequence = sp.sequence_out;
264 sequence_points.pop_front();
268 BlockIter b_iter = t->get_block_allocator().iter_for(block);
270 RouteList::iterator route = routes.begin();
271 if(advance_route(route, block))
273 // Check if the block is a turnout and set it to proper path
274 if(unsigned taddr = block.get_turnout_address())
276 int path = (*route)->get_turnout(taddr);
278 b_iter.track_iter()->set_active_path(path);
281 // Check if the next block is still part of the designated route
282 BlockIter b_iter_next = b_iter.next(*route);
284 RouteList::iterator next_route = route;
285 if(!advance_route(next_route, *b_iter_next))
287 train.stop_at(&block);
291 if(!sequence_points.empty())
293 SequencePoint &sp = sequence_points.front();
294 if(sp.block==b_iter_next.block() && !sp.is_cleared())
295 train.stop_at(&block);
300 void TrainRouter::train_advanced(Block &block)
302 BlockIter b_iter = train.get_block_allocator().iter_for(block);
304 // Check if we've reached the next route
307 Track &track = *b_iter.endpoint().track;
308 const Route *route = get_route();
309 bool change_route = false;
311 change_route = (*++routes.begin())->has_track(track);
313 change_route = !route->has_track(track);
320 signal_route_changed.emit(route);
321 signal_event.emit(Message("route-changed", route));
325 if(!waypoints.empty())
327 const TrackChain &wp = *waypoints.front();
328 TrackIter t_iter = b_iter.track_iter();
329 if(wp.has_track(*t_iter))
331 for(; t_iter; t_iter=t_iter.next())
333 if(!wp.has_track(*t_iter))
335 waypoints.erase(waypoints.begin());
336 signal_waypoint_reached.emit(&wp);
337 signal_event.emit(Message("waypoint-reached", &wp));
340 else if(!block.has_track(*t_iter))
348 b_iter = b_iter.next();
349 if(b_iter && !is_on_route(*b_iter))
354 const Route *TrainRouter::get_route_for_block(const Block &block) const
356 const set<Track *> &tracks = block.get_tracks();
357 for(RouteList::const_iterator i=routes.begin(); i!=routes.end(); ++i)
358 for(set<Track *>::const_iterator j=tracks.begin(); j!=tracks.end(); ++j)
359 if((*i)->has_track(**j))
365 void TrainRouter::create_metrics()
367 for(vector<TrainRouteMetric *>::iterator i=metrics.begin(); i!=metrics.end(); ++i)
374 metrics.push_back(new TrainRouteMetric(*destination));
375 for(vector<const TrackChain *>::const_iterator i=waypoints.begin(); i!=waypoints.end(); ++i)
376 metrics.push_back(new TrainRouteMetric(**i));
378 for(unsigned i=metrics.size(); --i>0; )
379 metrics[i]->chain_to(*metrics[(i+1)%metrics.size()]);
382 Route *TrainRouter::create_lead_route(Route *lead, const Route *target)
386 lead = new Route(train.get_layout());
387 lead->set_name("Lead");
388 lead->set_temporary(true);
391 bool target_reached = false;
392 for(TrackIter i=train.get_block_allocator().first().track_iter(); i; i=i.next())
394 if(i->get_block().get_train()!=&train)
398 if(target->has_track(*i))
399 target_reached = true;
400 else if(target_reached)
409 bool TrainRouter::advance_route(RouteList::iterator &iter, const Block &block)
411 const set<Track *> &tracks = block.get_tracks();
412 unsigned turnout_addr = block.get_turnout_address();
413 for(; iter!=routes.end(); ++iter)
415 if(turnout_addr && (*iter)->get_turnout(turnout_addr)<0)
417 for(set<Track *>::const_iterator j=tracks.begin(); j!=tracks.end(); ++j)
418 if((*iter)->has_track(**j))
425 bool TrainRouter::is_on_route(const Block &block)
427 RouteList::iterator iter = routes.begin();
428 return advance_route(iter, block);
431 void TrainRouter::start_planning(Layout &layout)
433 RefPtr<TrainRoutePlanner> planner = new TrainRoutePlanner(layout);
435 const map<unsigned, Train *> &trains = layout.get_trains();
436 for(map<unsigned, Train *>::const_iterator i=trains.begin(); i!=trains.end(); ++i)
437 if(TrainRouter *router = i->second->get_ai_of_type<TrainRouter>())
439 if(router->metrics_stale)
441 router->create_metrics();
442 router->metrics_stale = false;
444 router->planner = planner;
451 TrainRouter::SequencePoint::SequencePoint(Block &b, unsigned o):
458 bool TrainRouter::SequencePoint::is_cleared() const
463 TrainRouter *router = preceding_train->get_ai_of_type<TrainRouter>();
464 return router->get_current_sequence()>=sequence_in;
468 TrainRouter::Loader::Loader(TrainRouter &r):
469 DataFile::ObjectLoader<TrainRouter>(r)
471 add("priority", &TrainRouter::priority);
472 add("route", &Loader::route);
475 void TrainRouter::Loader::route(const string &n)
477 obj.set_route(&obj.train.get_layout().get_route(n));