TrainAI(t),
priority(0),
arrival(ON_THE_WAY),
- destination(0),
- destination_changed(false),
+ waypoints_changed(false),
metrics_stale(false),
current_sequence(0),
sequence_check_pending(false)
bool TrainRouter::set_route(const Route *r)
{
- BlockIter fncb = train.get_first_noncritical_block();
-
- Route *lead = 0;
- if(r && train.is_placed())
- {
- const BlockAllocator &allocator = train.get_block_allocator();
- TrackIter first = allocator.first().track_iter();
- TrackIter next = fncb.track_iter();
- if(!r->has_track(*next))
- {
- lead = Route::find(next, *r);
- if(!lead)
- return false;
- create_lead_route(lead, lead);
- }
- else if(!r->has_track(*first))
- lead = create_lead_route(0, r);
- }
-
routes.clear();
- if(lead)
- routes.push_back(lead);
- // TODO Check if eclipsed by lead route
if(r)
+ {
routes.push_back(r);
+ create_lead_route();
+ }
- destination = 0;
waypoints.clear();
sequence_points.clear();
current_sequence = 0;
return routes.front();
}
+void TrainRouter::use_planned_route()
+{
+ if(!planner || planner->get_result()!=TrainRoutePlanner::COMPLETE)
+ return;
+
+ const list<Route *> &planned_routes = planner->get_routes_for(train);
+
+ routes.clear();
+ routes.insert(routes.end(), planned_routes.begin(), planned_routes.end());
+ create_lead_route();
+
+ sequence_points = planner->get_sequence_for(train);
+ current_sequence = 0;
+ sequence_check_pending = false;
+
+ route_changed();
+}
+
void TrainRouter::route_changed()
{
BlockIter fncb = train.get_first_noncritical_block();
can't rely on the resync code in block_reserved since we may need to
clear the stop marker to continue allocation. */
TrackIter track = train.get_block_allocator().first().track_iter();
+ list<SequencePoint>::iterator seq_begin = sequence_points.begin();
for(; track; track=track.next())
{
- if(!advance_to_track(reserving_route, *track))
+ if(!advance_to_track(reserving_route, track))
{
already_at_end = true;
break;
}
if(&track->get_block()==fncb.block())
break;
+
+ if(seq_begin!=sequence_points.end() && seq_begin->block==&track->get_block())
+ {
+ current_sequence = seq_begin->sequence_out;
+ ++seq_begin;
+ }
}
+
+ sequence_points.erase(sequence_points.begin(), seq_begin);
}
if(!already_at_end)
void TrainRouter::set_destination(const TrackChain &d)
{
- destination = &d;
- destination_changed = true;
+ if(waypoints.empty())
+ waypoints.push_back(&d);
+ else
+ waypoints.back() = &d;
+ waypoints_changed = true;
metrics_stale = true;
}
void TrainRouter::add_waypoint(const TrackChain &wp)
{
waypoints.push_back(&wp);
- destination_changed = true;
+ waypoints_changed = true;
metrics_stale = true;
}
const TrainRouteMetric &TrainRouter::get_metric(int index) const
{
- if(!destination)
+ if(waypoints.empty())
throw logic_error("no metrics");
else if(metrics_stale)
throw logic_error("metrics are stale");
if(index<0)
- return *metrics.front();
+ return *metrics.back();
else if(static_cast<unsigned>(index)>=waypoints.size())
throw out_of_range("TrainRouter::get_metric");
else
- return *metrics[index+1];
+ return *metrics[index];
}
void TrainRouter::set_departure_delay(const Time::TimeDelta &d)
{
delay = d;
- destination_changed = true;
+ waypoints_changed = true;
}
void TrainRouter::set_trip_duration(const Time::TimeDelta &d)
else if(duration)
duration = max(duration-dt, Time::zero);
- if(destination_changed && !planner)
+ if(waypoints_changed && !planner)
start_planning(train.get_layout());
if(planner && planner->check()!=TrainRoutePlanner::PENDING)
- {
- destination_changed = false;
- if(planner->get_result()==TrainRoutePlanner::COMPLETE)
- {
- const list<Route *> &planned_routes = planner->get_routes_for(train);
-
- routes.clear();
- Route *lead = create_lead_route(0, planned_routes.front());
- routes.push_back(lead);
-
- list<Route *>::const_iterator begin = planned_routes.begin();
- for(; begin!=planned_routes.end(); ++begin)
- {
- const Route::TrackSet &tracks = (*begin)->get_tracks();
- bool eclipsed = true;
- for(Route::TrackSet::const_iterator i=tracks.begin(); (eclipsed && i!=tracks.end()); ++i)
- eclipsed = lead->has_track(**i);
- if(!eclipsed)
- break;
- }
- routes.insert(routes.end(), begin, planned_routes.end());
-
- sequence_points = planner->get_sequence_for(train);
- current_sequence = 0;
- sequence_check_pending = false;
-
- route_changed();
- }
- planner = 0;
- }
+ apply_plan(train.get_layout(), *planner);
if(sequence_check_pending)
{
if(arrival==RESERVED_TO_END && !train.get_speed())
{
- signal_arrived.emit(destination);
- signal_event.emit(Message("arrived", destination));
+ signal_arrived.emit(waypoints.back());
+ signal_event.emit(Message("arrived", waypoints.back()));
arrival = ARRIVED;
}
else if(arrival==ARRIVED && !train.get_block_allocator().is_active())
track = t->get_block_allocator().first().track_iter();
for(; track; track=track.next())
{
- if(!advance_to_track(reserving_route, *track))
+ if(!advance_to_track(reserving_route, track))
throw logic_error("internal error (reservation outside of route)");
else if(&track->get_block()==&block)
break;
expected to be allocated next. */
for(; track; track=track.next((*reserving_route)->get_path(*track)))
{
- if(!advance_to_track(reserving_route, *track))
+ if(!advance_to_track(reserving_route, track))
{
// We've reached the end of the route. Stop here.
arrival = RESERVED_TO_END;
{
BlockIter b_iter = train.get_block_allocator().iter_for(block);
- if(!waypoints.empty())
+ if(waypoints.size()>1)
{
// A waypoint is considered reached when the train has advanced through it.
const TrackChain &wp = *waypoints.front();
if(!wp.has_track(*t_iter))
{
waypoints.erase(waypoints.begin());
+ metrics_stale = true;
signal_waypoint_reached.emit(&wp);
signal_event.emit(Message("waypoint-reached", &wp));
break;
delete *i;
metrics.clear();
- if(!destination)
+ metrics_stale = false;
+
+ if(waypoints.empty())
return;
- metrics.push_back(new TrainRouteMetric(*destination));
for(vector<const TrackChain *>::const_iterator i=waypoints.begin(); i!=waypoints.end(); ++i)
metrics.push_back(new TrainRouteMetric(**i));
- for(unsigned i=metrics.size(); --i>0; )
- metrics[i]->chain_to(*metrics[(i+1)%metrics.size()]);
-
- metrics_stale = false;
+ for(unsigned i=metrics.size()-1; i-->0; )
+ metrics[i]->chain_to(*metrics[i+1]);
}
-Route *TrainRouter::create_lead_route(Route *lead, const Route *target)
+bool TrainRouter::create_lead_route()
{
- if(!lead)
+ if(routes.empty() || !train.is_placed())
+ return false;
+
+ BlockIter fncb = train.get_first_noncritical_block();
+ TrackIter next_track = fncb.track_iter();
+
+ unsigned count = 0;
+ for(TrackIter i=next_track.flip(); (i && i->get_block().get_train()==&train); i=i.next())
{
- lead = new Route(train.get_layout());
- lead->set_name("Lead");
- lead->set_temporary(true);
+ if(routes.front()->has_track(*i))
+ ++count;
+ else if(count>0)
+ {
+ if(count==routes.front()->get_tracks().size())
+ next_track = i.flip();
+ break;
+ }
}
- bool target_tracks = 0;
- for(TrackIter i=train.get_block_allocator().first().track_iter(); (target_tracks<2 && i); i=i.next())
+ if(!routes.front()->has_track(*next_track) && !routes.front()->has_track(*next_track.flip()))
{
- if(i->get_block().get_train()!=&train)
- break;
- if(target)
+ Route *pf = Route::find(next_track, *routes.front());
+ if(!pf)
+ return false;
+
+ routes.push_front(pf);
+ }
+
+ Route *lead = 0;
+ for(TrackIter i=next_track.flip(); (i && i->get_block().get_train()==&train); i=i.next())
+ {
+ if(!lead && !routes.front()->has_track(*i))
{
- if(target->has_track(*i))
- ++target_tracks;
- else if(target_tracks>0)
- break;
+ lead = new Route(train.get_layout());
+ lead->set_name("Lead");
+ lead->set_temporary(true);
+ routes.push_front(lead);
+
+ TrackIter j = i.flip();
+ lead->add_track(*j);
+ lead->add_track(*j.next());
}
- lead->add_track(*i);
+
+ if(lead)
+ lead->add_track(*i);
}
- return lead;
+ return true;
}
-bool TrainRouter::is_valid_for_track(const Route &route, Track &track) const
+bool TrainRouter::is_valid_for_track(const Route &route, const TrackIter &track) const
{
- if(!route.has_track(track))
+ if(!route.has_track(*track))
return false;
- if(track.get_type().is_turnout() && route.get_turnout(track.get_turnout_address())<0)
+ if(track->get_type().is_turnout() && route.get_turnout(track->get_turnout_address())<0 && route.has_track(*track.flip()))
return false;
return true;
}
-bool TrainRouter::advance_to_track(RouteList::iterator &route, Track &track)
+bool TrainRouter::advance_to_track(RouteList::iterator &route, const TrackIter &track)
{
if(!is_valid_for_track(**route, track))
{
return true;
}
-void TrainRouter::start_planning(Layout &layout)
+void TrainRouter::get_routers(Layout &layout, vector<TrainRouter *> &routers)
{
- vector<TrainRouter *> routers;
const map<unsigned, Train *> &trains = layout.get_trains();
routers.reserve(trains.size());
for(map<unsigned, Train *>::const_iterator i=trains.begin(); i!=trains.end(); ++i)
if(TrainRouter *router = i->second->get_ai_of_type<TrainRouter>())
routers.push_back(router);
+}
+
+void TrainRouter::start_planning(Layout &layout)
+{
+ vector<TrainRouter *> routers;
+ get_routers(layout, routers);
for(vector<TrainRouter *>::const_iterator i=routers.begin(); i!=routers.end(); ++i)
if((*i)->metrics_stale)
RefPtr<TrainRoutePlanner> planner = new TrainRoutePlanner(layout);
for(vector<TrainRouter *>::const_iterator i=routers.begin(); i!=routers.end(); ++i)
+ {
+ (*i)->waypoints_changed = false;
(*i)->planner = planner;
+ }
planner->plan_async();
}
+void TrainRouter::apply_plan(Layout &layout, TrainRoutePlanner &planner)
+{
+ vector<TrainRouter *> routers;
+ get_routers(layout, routers);
+
+ for(vector<TrainRouter *>::const_iterator i=routers.begin(); i!=routers.end(); ++i)
+ if((*i)->planner.get()==&planner)
+ {
+ (*i)->use_planned_route();
+ (*i)->planner = 0;
+ }
+}
+
TrainRouter::SequencePoint::SequencePoint(Block &b, unsigned o):
block(&b),