+ // We must copy the turnout map, since adding tracks to the route will (temporarily) mess it up
+ const map<unsigned, int> turnouts = (*i)->get_turnouts();
+
+ Track *track = 0;
+ unsigned trk_route = 0;
+ for(set<Track *>::const_iterator j=tracks.begin(); j!=tracks.end(); ++j)
+ {
+ map<unsigned, int>::const_iterator k = turnouts.find((*j)->get_turnout_id());
+ if(k!=turnouts.end())
+ {
+ track = *j;
+ trk_route = k->second;
+ break;
+ }
+ }
+
+ (*i)->add_track(*track);
+
+ const vector<Endpoint> &eps = track->get_type().get_endpoints();
+ unsigned ep = 0;
+ for(unsigned j=0; j<eps.size(); ++i)
+ if(eps[j].routes&(1<<trk_route))
+ {
+ ep = j;
+ break;
+ }
+
+ Track *start = track;
+ while(1)
+ {
+ int out_ep = track->traverse(ep, trk_route);
+ if(out_ep<0)
+ break;
+ Track *next = track->get_links()[out_ep];
+ if(!next || next == start)
+ break;
+ ep = next->get_endpoint_by_link(*track);
+ if(next->get_type().get_n_routes()>1)
+ {
+ map<unsigned, int>::const_iterator j = turnouts.find(next->get_turnout_id());
+ if(j==turnouts.end())
+ break;
+ trk_route = j->second;
+ }
+ else
+ trk_route = 0;
+ (*i)->add_track(*next);
+ track = next;
+ }