14 Track::Track(Layout &l, const TrackType &t):
22 links(type.get_endpoints().size()),
27 turnout_id = layout.allocate_turnout_id();
29 layout.add_track(*this);
31 if(layout.has_driver())
32 layout.get_driver().signal_turnout.connect(sigc::mem_fun(this, &Track::turnout_event));
34 for(unsigned paths = type.get_paths(); !(paths&1); ++active_path, paths>>=1) ;
40 layout.remove_track(*this);
43 Track *Track::clone(Layout *to_layout) const
45 Track *track = new Track((to_layout ? *to_layout : layout), type);
46 track->set_position(position);
47 track->set_rotation(rotation);
51 void Track::set_block(Block *b)
53 if(b && !b->has_track(*this))
54 throw logic_error("track not in block");
55 if(!b && block && block->has_track(*this))
56 throw logic_error("track still in block");
61 Block &Track::get_block() const
64 throw logic_error("!block");
69 void Track::set_position(const Vector &p)
72 for(vector<Track *>::const_iterator i=links.begin(); i!=links.end(); ++i)
77 void Track::set_rotation(float r)
82 while(rotation>M_PI*2)
86 void Track::set_slope(float s)
94 void Track::set_flex(bool f)
99 void Track::check_slope()
104 if(links[0] && links[1])
106 Vector epp0 = links[0]->get_snap_node(links[0]->get_link_slot(*this)).position;
107 Vector epp1 = links[1]->get_snap_node(links[1]->get_link_slot(*this)).position;
109 slope = epp1.z-position.z;
116 Vector epp = links[0]->get_snap_node(links[0]->get_link_slot(*this)).position;
121 Vector epp = links[1]->get_snap_node(links[1]->get_link_slot(*this)).position;
127 void Track::set_turnout_id(unsigned i)
129 if(!type.is_turnout())
130 throw logic_error("not a turnout");
133 layout.create_blocks(*this);
134 layout.update_routes();
135 if(layout.has_driver() && turnout_id)
136 layout.get_driver().add_turnout(turnout_id, type);
139 void Track::set_sensor_id(unsigned i)
141 if(type.is_turnout())
142 throw logic_error("is a turnout");
145 layout.create_blocks(*this);
146 if(layout.has_driver() && sensor_id)
147 layout.get_driver().add_sensor(sensor_id);
150 void Track::set_active_path(unsigned p)
153 throw logic_error("not a turnout");
154 if(!(type.get_paths()&(1<<p)))
155 throw invalid_argument("Track::set_active_path");
157 path_changing = true;
158 layout.get_driver().set_turnout(turnout_id, p);
161 TrackPoint Track::get_point(unsigned epi, unsigned path, float d) const
163 TrackPoint p = type.get_point(epi, path, d);
164 float c = cos(rotation);
165 float s = sin(rotation);
167 p.pos = Vector(position.x+c*p.pos.x-s*p.pos.y, position.y+s*p.pos.x+c*p.pos.y, position.z);
169 if(type.get_endpoints().size()==2)
171 float len = type.get_path_length(path);
172 float grade = slope/len;
180 p.pos.z += slope-grade*d;
188 TrackPoint Track::get_point(unsigned epi, float d) const
190 return get_point(epi, active_path, d);
193 unsigned Track::get_n_snap_nodes() const
195 return type.get_endpoints().size();
198 Snap Track::get_snap_node(unsigned i) const
200 const vector<TrackType::Endpoint> &eps = type.get_endpoints();
202 throw out_of_range("Track::get_snap_node");
205 const TrackType::Endpoint &ep = eps[i];
207 float c = cos(rotation);
208 float s = sin(rotation);
210 result.position = Vector(position.x+c*ep.pos.x-s*ep.pos.y, position.y+s*ep.pos.x+c*ep.pos.y, position.z);
211 if(eps.size()==2 && i==1)
212 result.position.z += slope;
214 result.rotation = rotation+ep.dir;
219 bool Track::snap(Snap &sn, float limit, SnapType what) const
221 if(Object::snap(sn, limit, what))
224 if(what&SNAP_SEGMENT)
226 Vector local(sn.position.x-position.x, sn.position.y-position.y, sn.position.z-position.z);
227 float c = cos(rotation);
228 float s = sin(rotation);
229 local = Vector(c*local.x+s*local.y, c*local.y-s*local.x, local.z);
231 TrackPoint tp = type.get_nearest_point(local);
232 Vector d(local.x-tp.pos.x, local.y-tp.pos.y, local.z-tp.pos.z);
233 if(d.x*d.x+d.y*d.y+d.z*d.z<=limit*limit)
235 sn.position = Vector(position.x+tp.pos.x*c-tp.pos.y*s, position.y+tp.pos.y*c+tp.pos.x*s, position.z+tp.pos.z);
236 sn.rotation = tp.dir+rotation;
244 SnapType Track::get_default_snap_type_to(const Object &other) const
246 if(dynamic_cast<const Track *>(&other))
252 unsigned Track::get_n_link_slots() const
257 Track *Track::get_link(unsigned i) const
260 throw out_of_range("Track::get_link");
265 int Track::get_link_slot(const Object &other) const
267 for(unsigned i=0; i<links.size(); ++i)
274 bool Track::link_to(Object &other)
276 Track *otrack = dynamic_cast<Track *>(&other);
280 float limit = layout.get_catalogue().get_gauge();
281 if(!flex && !otrack->get_flex())
285 unsigned nsn = get_n_snap_nodes();
286 unsigned other_nsn = other.get_n_snap_nodes();
287 for(unsigned i=0; i<nsn; ++i)
289 Snap sn = get_snap_node(i);
290 for(unsigned j=0; j<other_nsn; ++j)
292 Snap osn = other.get_snap_node(j);
293 Vector d(osn.position.x-sn.position.x, osn.position.y-sn.position.y, osn.position.z-sn.position.z);
294 float da = osn.rotation-sn.rotation-M_PI;
300 if(d.x*d.x+d.y*d.y<limit && d.z*d.z<limit && da>-0.01 && da<0.01)
304 otrack->links[j] = this;
306 layout.create_blocks(*this);
308 signal_link_changed.emit(i, otrack);
309 otrack->signal_link_changed.emit(j, this);
318 bool Track::break_link(unsigned i)
321 throw out_of_range("Track::break_link");
323 Track *other = links[i];
328 other->break_link(*this);
329 // XXX Creates the blocks twice, because the other track calls this too
330 layout.create_blocks(*this);
331 signal_link_changed.emit(i, 0);
336 bool Track::collide_ray(const Vector &start, const Vector &ray) const
338 Vector local_start(start.x-position.x, start.y-position.y, start.z-position.z);
339 float c = cos(rotation);
340 float s = sin(rotation);
341 local_start = Vector(c*local_start.x+s*local_start.y, c*local_start.y-s*local_start.x, local_start.z);
342 Vector local_ray(c*ray.x+s*ray.y, c*ray.y-s*ray.x, ray.z);
344 float width = layout.get_catalogue().get_ballast_profile().get_width();
346 return type.collide_ray(local_start, local_ray, width);
349 void Track::save(list<DataFile::Statement> &st) const
351 st.push_back((DataFile::Statement("position"), position.x, position.y, position.z));
352 st.push_back((DataFile::Statement("rotation"), rotation));
353 st.push_back((DataFile::Statement("slope"), slope));
355 st.push_back((DataFile::Statement("turnout_id"), turnout_id));
357 st.push_back((DataFile::Statement("sensor_id"), sensor_id));
359 st.push_back((DataFile::Statement("flex"), true));
362 void Track::turnout_event(unsigned addr, unsigned state)
370 path_changing = false;
371 signal_path_changed.emit(active_path);
376 Track::Loader::Loader(Track &t):
377 DataFile::ObjectLoader<Track>(t)
379 add("position", &Loader::position);
380 add("rotation", &Loader::rotation);
381 add("slope", &Track::slope);
382 add("turnout_id", &Loader::turnout_id);
383 add("sensor_id", &Loader::sensor_id);
384 add("flex", &Track::flex);
387 void Track::Loader::position(float x, float y, float z)
389 obj.position = Vector(x, y, z);
392 void Track::Loader::rotation(float r)
397 void Track::Loader::sensor_id(unsigned id)
399 obj.set_sensor_id(id);
402 void Track::Loader::turnout_id(unsigned id)
404 obj.set_turnout_id(id);