3 This file is part of the MSP Märklin suite
4 Copyright © 2006-2009 Mikkosoft Productions, Mikko Rasa
5 Distributed under the GPL
9 #include <msp/strings/formatter.h>
10 #include <msp/time/units.h>
11 #include <msp/time/utils.h>
15 #include "tracktype.h"
16 #include "trafficmanager.h"
24 Train::Train(TrafficManager &tm, Locomotive &l):
37 trfc_mgr.add_train(this);
39 loco.signal_reverse_changed.connect(sigc::mem_fun(this, &Train::locomotive_reverse_changed));
41 const map<unsigned, Sensor *> &sensors = trfc_mgr.get_control().get_sensors();
42 for(map<unsigned, Sensor *>::const_iterator i=sensors.begin(); i!=sensors.end(); ++i)
43 i->second->signal_state_changed.connect(sigc::bind(sigc::mem_fun(this, &Train::sensor_event), i->second));
45 const map<unsigned, Turnout *> &turnouts = trfc_mgr.get_control().get_turnouts();
46 for(map<unsigned, Turnout *>::const_iterator i=turnouts.begin(); i!=turnouts.end(); ++i)
48 i->second->signal_path_changing.connect(sigc::bind(sigc::mem_fun(this, &Train::turnout_path_changing), i->second));
49 i->second->signal_path_changed.connect(sigc::bind(sigc::mem_fun(this, &Train::turnout_path_changed), i->second));
53 void Train::set_name(const string &n)
57 signal_name_changed.emit(name);
60 void Train::set_speed(unsigned speed)
62 if(speed==target_speed)
64 travel_speed = static_cast<int>(round(get_real_speed(speed)*87*3.6/5))*5;
69 trfc_mgr.get_control().set_timer(3*Time::sec).signal_timeout.connect(
70 sigc::bind_return(sigc::mem_fun(this, &Train::release_reserved_blocks), false));
75 signal_target_speed_changed.emit(target_speed);
81 void Train::set_reverse(bool rev)
83 loco.set_reverse(rev);
86 void Train::set_route(const Route *r)
89 signal_route_changed.emit(route);
92 void Train::place(Block *block, unsigned entry)
94 for(list<BlockRef>::iterator i=rsv_blocks.begin(); i!=rsv_blocks.end();)
97 i = rsv_blocks.erase(i);
100 for(list<BlockRef>::iterator i=cur_blocks.begin(); i!=cur_blocks.end();)
102 i->block->reserve(0);
103 i = cur_blocks.erase(i);
106 if(!block->reserve(this))
108 set_status("Unplaced");
112 cur_blocks.push_back(BlockRef(block, entry));
113 set_position(block->get_endpoints()[entry]);
115 set_status("Stopped");
118 bool Train::free_block(Block *block)
121 for(list<BlockRef>::iterator i=rsv_blocks.begin(); i!=rsv_blocks.end(); ++i)
127 while(i!=rsv_blocks.end())
129 i->block->reserve(0);
130 i = rsv_blocks.erase(i);
135 else if(i->block->get_sensor_id())
142 void Train::tick(const Time::TimeStamp &t, const Time::TimeDelta &dt)
144 if(try_reserve && t>try_reserve)
150 if(cur_track->get_turnout_id())
151 path = trfc_mgr.get_control().get_turnout(cur_track->get_turnout_id()).get_path();
153 offset += get_real_speed(loco.get_speed())*(dt/Time::sec);
154 if(offset>cur_track->get_type().get_path_length(path))
156 int out = cur_track->traverse(cur_track_ep, path);
159 Track *next = cur_track->get_link(out);
161 cur_track_ep = next->get_endpoint_by_link(*cur_track);
170 pos = cur_track->get_point(cur_track_ep, path, offset);
174 void Train::save(list<DataFile::Statement> &st) const
176 st.push_back((DataFile::Statement("name"), name));
177 for(unsigned i=0; i<=14; ++i)
178 if(real_speed[i].weight)
179 st.push_back((DataFile::Statement("real_speed"), i, real_speed[i].speed, real_speed[i].weight));
182 void Train::locomotive_reverse_changed(bool)
184 for(list<BlockRef>::iterator i=rsv_blocks.begin(); i!=rsv_blocks.end(); ++i)
185 i->block->reserve(0);
187 cur_blocks.reverse();
188 for(list<BlockRef>::iterator i=cur_blocks.begin(); i!=cur_blocks.end(); ++i)
189 i->entry = i->block->traverse(i->entry);
195 if(unsigned turnout = cur_track->get_turnout_id())
196 path = trfc_mgr.get_control().get_turnout(turnout).get_path();
197 cur_track_ep = cur_track->traverse(cur_track_ep, path);
198 offset = cur_track->get_type().get_path_length(path)-offset;
202 void Train::sensor_event(bool state, Sensor *sensor)
204 unsigned addr = sensor->get_address();
208 list<BlockRef>::iterator i;
209 for(i=rsv_blocks.begin(); i!=rsv_blocks.end(); ++i)
210 if(i->block->get_sensor_id() && i->block->get_sensor_id()!=addr)
213 if(i!=rsv_blocks.begin())
215 float travel_time_secs = (Time::now()-last_entry_time)/Time::sec;
216 travel_speed = static_cast<int>(round(travel_dist/travel_time_secs*87*3.6/5))*5;
220 RealSpeed &rs = real_speed[loco.get_speed()];
221 rs.add(travel_dist/travel_time_secs, travel_time_secs);
226 for(list<BlockRef>::iterator j=rsv_blocks.begin(); j!=i; ++j)
228 j->block->traverse(j->entry, &block_len);
229 travel_dist += block_len;
231 last_entry_time = Time::now();
234 cur_blocks.splice(cur_blocks.end(), rsv_blocks, rsv_blocks.begin(), i);
237 for(i=cur_blocks.begin(); i!=cur_blocks.end(); ++i)
238 if(i->block->get_sensor_id()==addr)
239 set_position(i->block->get_endpoints()[i->entry]);
241 if(target_speed && reserve_more()<2)
246 for(list<BlockRef>::iterator i=cur_blocks.begin(); i!=cur_blocks.end(); ++i)
247 if(unsigned b_addr = i->block->get_sensor_id())
252 for(list<BlockRef>::iterator j=cur_blocks.begin(); j!=i; ++j)
253 j->block->reserve(0);
254 cur_blocks.erase(cur_blocks.begin(), i);
259 if(target_speed && pending_block && addr==pending_block->get_sensor_id())
264 void Train::turnout_path_changing(unsigned, Turnout *turnout)
266 unsigned tid = turnout->get_address();
267 for(list<BlockRef>::const_iterator i=cur_blocks.begin(); i!=cur_blocks.end(); ++i)
268 if(i->block->get_turnout_id()==tid)
269 throw TurnoutBusy(this);
272 for(list<BlockRef>::const_iterator i=rsv_blocks.begin(); i!=rsv_blocks.end(); ++i)
274 if(i->block->get_turnout_id()==tid)
277 throw TurnoutBusy(this);
280 else if(i->block->get_sensor_id())
285 void Train::turnout_path_changed(unsigned, Turnout *turnout)
287 unsigned tid = turnout->get_address();
288 for(list<BlockRef>::iterator i=rsv_blocks.begin(); i!=rsv_blocks.end(); ++i)
289 if(i->block->get_turnout_id()==tid)
291 while(i!=rsv_blocks.end())
293 i->block->reserve(0);
294 i = rsv_blocks.erase(i);
300 if(pending_block && tid==pending_block->get_turnout_id())
304 unsigned Train::reserve_more()
307 if(!rsv_blocks.empty())
308 last = &rsv_blocks.back();
309 else if(!cur_blocks.empty())
310 last = &cur_blocks.back();
317 for(list<BlockRef>::const_iterator i=rsv_blocks.begin(); i!=rsv_blocks.end(); ++i)
318 if(i->block->get_sensor_id())
321 bool got_more = false;
324 int exit = last->block->traverse(last->entry);
328 Block *link = last->block->get_link(exit);
329 if(!link || !link->reserve(this))
331 pending_block = link;
335 if(route && link->get_turnout_id())
337 int path = route->get_turnout(link->get_turnout_id());
338 Turnout &turnout = trfc_mgr.get_control().get_turnout(link->get_turnout_id());
339 if(path>=0 && path!=turnout.get_path())
342 pending_block = link;
343 turnout.set_path(path);
348 rsv_blocks.push_back(BlockRef(link, link->get_endpoint_by_link(*last->block)));
349 last = &rsv_blocks.back();
350 if(last->block->get_sensor_id())
357 while(!rsv_blocks.empty() && !last->block->get_sensor_id())
359 last->block->reserve(0);
360 rsv_blocks.erase(--rsv_blocks.end());
361 if(!rsv_blocks.empty())
362 last = &rsv_blocks.back();
373 void Train::update_speed()
378 try_reserve = Time::TimeStamp();
379 set_status("Stopped");
384 for(list<BlockRef>::const_iterator i=rsv_blocks.begin(); i!=rsv_blocks.end(); ++i)
385 if(i->block->get_sensor_id())
388 unsigned slow_speed = find_speed(0.1); // 31.3 km/h
393 try_reserve = Time::now()+2*Time::sec;
394 set_status("Blocked");
396 else if(nsens==1 && target_speed>slow_speed)
398 loco.set_speed(slow_speed);
400 try_reserve = Time::now()+2*Time::sec;
405 loco.set_speed(target_speed);
406 try_reserve = Time::TimeStamp();
407 set_status(format("Traveling %d kmh", travel_speed));
412 float Train::get_real_speed(unsigned i) const
414 if(real_speed[i].weight)
415 return real_speed[i].speed;
419 for(low=i; low>0; --low)
420 if(real_speed[low].weight)
422 for(high=i; high<14; ++high)
423 if(real_speed[high].weight)
426 if(real_speed[high].weight)
428 if(real_speed[low].weight)
430 float f = float(i-low)/(high-low);
431 return real_speed[low].speed*(1-f)+real_speed[high].speed*f;
434 return real_speed[high].speed*float(i)/high;
436 else if(real_speed[low].weight)
437 return real_speed[low].speed*float(i)/low;
442 unsigned Train::find_speed(float real) const
444 if(real<=real_speed[0].speed)
449 for(unsigned i=0; (!high && i<=14); ++i)
450 if(real_speed[i].weight)
452 if(real_speed[i].speed<real)
461 return min(static_cast<unsigned>(low*real/real_speed[low].speed), 14U);
464 float f = (real-real_speed[low].speed)/(real_speed[high].speed-real_speed[low].speed);
465 return static_cast<unsigned>(low*(1-f)+high*f+0.5);
468 void Train::set_status(const string &s)
471 signal_status_changed.emit(s);
474 void Train::set_position(const Block::Endpoint &bep)
476 cur_track = bep.track;
477 cur_track_ep = bep.track_ep;
479 pos = cur_track->get_endpoint_position(cur_track_ep);
482 void Train::release_reserved_blocks()
484 for(list<BlockRef>::iterator i=rsv_blocks.begin(); i!=rsv_blocks.end(); ++i)
485 i->block->reserve(0);
490 Train::RealSpeed::RealSpeed():
495 void Train::RealSpeed::add(float s, float w)
497 speed = (speed*weight+s*w)/(weight+w);
498 weight = min(weight+w, 300.0f);
502 Train::Loader::Loader(Train &t):
503 DataFile::BasicLoader<Train>(t)
505 add("name", &Train::name);
506 add("real_speed", &Loader::real_speed);
509 void Train::Loader::real_speed(unsigned i, float speed, float weight)
511 obj.real_speed[i].speed = speed;
512 obj.real_speed[i].weight = weight;
515 } // namespace Marklin