- for(Catalogue::TrackMap::const_iterator i=track_types.begin(); i!=track_types.end(); ++i)
- {
- const vector<TrackPart> &parts = i->second->get_parts();
- if(parts.size()!=1)
- continue;
- if(parts.front().is_curved() || parts.front().is_dead_end())
- continue;
+ for(Catalogue::ObjectMap::const_iterator i=object_types.begin(); i!=object_types.end(); ++i)
+ if(const TrackType *tt = dynamic_cast<const TrackType *>(i->second))
+ {
+ const vector<TrackPart> &parts = tt->get_parts();
+ if(parts.size()!=1)
+ continue;
+ if(parts.front().is_curved() || parts.front().is_dead_end())
+ continue;