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):
36 trfc_mgr.add_train(this);
38 loco.signal_reverse_changed.connect(sigc::mem_fun(this, &Train::locomotive_reverse_changed));
40 const map<unsigned, Sensor *> &sensors = trfc_mgr.get_control().get_sensors();
41 for(map<unsigned, Sensor *>::const_iterator i=sensors.begin(); i!=sensors.end(); ++i)
42 i->second->signal_state_changed.connect(sigc::bind(sigc::mem_fun(this, &Train::sensor_event), i->second));
44 const map<unsigned, Turnout *> &turnouts = trfc_mgr.get_control().get_turnouts();
45 for(map<unsigned, Turnout *>::const_iterator i=turnouts.begin(); i!=turnouts.end(); ++i)
47 i->second->signal_path_changing.connect(sigc::bind(sigc::mem_fun(this, &Train::turnout_path_changing), i->second));
48 i->second->signal_path_changed.connect(sigc::bind(sigc::mem_fun(this, &Train::turnout_path_changed), i->second));
52 void Train::set_name(const string &n)
56 signal_name_changed.emit(name);
59 void Train::set_speed(unsigned speed)
61 if(speed==target_speed)
63 travel_speed = static_cast<int>(round(get_real_speed(speed)*87*3.6/5))*5;
68 trfc_mgr.get_control().set_timer(3*Time::sec).signal_timeout.connect(
69 sigc::bind_return(sigc::mem_fun(this, &Train::release_reserved_blocks), false));
74 signal_target_speed_changed.emit(target_speed);
80 void Train::set_reverse(bool rev)
82 loco.set_reverse(rev);
85 void Train::set_route(const Route *r)
88 signal_route_changed.emit(route);
91 void Train::place(Block *block, unsigned entry)
93 for(list<BlockRef>::iterator i=rsv_blocks.begin(); i!=rsv_blocks.end();)
96 i = rsv_blocks.erase(i);
99 for(list<BlockRef>::iterator i=cur_blocks.begin(); i!=cur_blocks.end();)
101 i->block->reserve(0);
102 i = cur_blocks.erase(i);
105 if(!block->reserve(this))
107 set_status("Unplaced");
111 cur_blocks.push_back(BlockRef(block, entry));
112 set_position(block->get_endpoints()[entry]);
114 set_status("Stopped");
117 bool Train::free_block(Block *block)
120 for(list<BlockRef>::iterator i=rsv_blocks.begin(); i!=rsv_blocks.end(); ++i)
126 while(i!=rsv_blocks.end())
128 i->block->reserve(0);
129 i = rsv_blocks.erase(i);
134 else if(i->block->get_sensor_id())
141 void Train::tick(const Time::TimeStamp &t, const Time::TimeDelta &dt)
143 if(try_reserve && t>try_reserve)
149 if(cur_track->get_turnout_id())
150 path = trfc_mgr.get_control().get_turnout(cur_track->get_turnout_id()).get_path();
152 offset += get_real_speed(loco.get_speed())*(dt/Time::sec);
153 if(offset>cur_track->get_type().get_path_length(path))
155 int out = cur_track->traverse(cur_track_ep, path);
158 Track *next = cur_track->get_link(out);
160 cur_track_ep = next->get_endpoint_by_link(*cur_track);
169 pos = cur_track->get_point(cur_track_ep, path, offset);
173 void Train::save(list<DataFile::Statement> &st) const
175 st.push_back((DataFile::Statement("name"), name));
176 for(unsigned i=0; i<=14; ++i)
177 if(real_speed[i].weight)
178 st.push_back((DataFile::Statement("real_speed"), i, real_speed[i].speed, real_speed[i].weight));
181 void Train::locomotive_reverse_changed(bool)
183 for(list<BlockRef>::iterator i=rsv_blocks.begin(); i!=rsv_blocks.end(); ++i)
184 i->block->reserve(0);
186 cur_blocks.reverse();
187 for(list<BlockRef>::iterator i=cur_blocks.begin(); i!=cur_blocks.end(); ++i)
188 i->entry = i->block->traverse(i->entry);
194 if(unsigned turnout = cur_track->get_turnout_id())
195 path = trfc_mgr.get_control().get_turnout(turnout).get_path();
196 cur_track_ep = cur_track->traverse(cur_track_ep, path);
197 offset = cur_track->get_type().get_path_length(path)-offset;
201 void Train::sensor_event(bool state, Sensor *sensor)
203 unsigned addr = sensor->get_address();
207 list<BlockRef>::iterator i;
208 for(i=rsv_blocks.begin(); i!=rsv_blocks.end(); ++i)
209 if(i->block->get_sensor_id() && i->block->get_sensor_id()!=addr)
212 if(i!=rsv_blocks.begin())
214 float travel_time_secs = (Time::now()-last_entry_time)/Time::sec;
215 travel_speed = static_cast<int>(round(travel_dist/travel_time_secs*87*3.6/5))*5;
219 RealSpeed &rs = real_speed[loco.get_speed()];
220 rs.add(travel_dist/travel_time_secs, travel_time_secs);
225 for(list<BlockRef>::iterator j=rsv_blocks.begin(); j!=i; ++j)
227 j->block->traverse(j->entry, &block_len);
228 travel_dist += block_len;
230 last_entry_time = Time::now();
233 cur_blocks.splice(cur_blocks.end(), rsv_blocks, rsv_blocks.begin(), i);
236 for(i=cur_blocks.begin(); i!=cur_blocks.end(); ++i)
237 if(i->block->get_sensor_id()==addr)
238 set_position(i->block->get_endpoints()[i->entry]);
240 if(target_speed && reserve_more()<2)
245 for(list<BlockRef>::iterator i=cur_blocks.begin(); i!=cur_blocks.end(); ++i)
246 if(unsigned b_addr = i->block->get_sensor_id())
251 for(list<BlockRef>::iterator j=cur_blocks.begin(); j!=i; ++j)
252 j->block->reserve(0);
253 cur_blocks.erase(cur_blocks.begin(), i);
258 if(target_speed && pending_block && addr==pending_block->get_sensor_id())
263 void Train::turnout_path_changing(unsigned, Turnout *turnout)
265 unsigned tid = turnout->get_address();
266 for(list<BlockRef>::const_iterator i=cur_blocks.begin(); i!=cur_blocks.end(); ++i)
267 if(i->block->get_turnout_id()==tid)
268 throw TurnoutBusy(this);
271 for(list<BlockRef>::const_iterator i=rsv_blocks.begin(); i!=rsv_blocks.end(); ++i)
273 if(i->block->get_turnout_id()==tid)
276 throw TurnoutBusy(this);
279 else if(i->block->get_sensor_id())
284 void Train::turnout_path_changed(unsigned, Turnout *turnout)
286 unsigned tid = turnout->get_address();
287 for(list<BlockRef>::iterator i=rsv_blocks.begin(); i!=rsv_blocks.end(); ++i)
288 if(i->block->get_turnout_id()==tid)
290 while(i!=rsv_blocks.end())
292 i->block->reserve(0);
293 i = rsv_blocks.erase(i);
299 if(pending_block && tid==pending_block->get_turnout_id())
303 unsigned Train::reserve_more()
306 if(!rsv_blocks.empty())
307 last = &rsv_blocks.back();
308 else if(!cur_blocks.empty())
309 last = &cur_blocks.back();
316 for(list<BlockRef>::const_iterator i=rsv_blocks.begin(); i!=rsv_blocks.end(); ++i)
317 if(i->block->get_sensor_id())
320 bool got_more = false;
323 int exit = last->block->traverse(last->entry);
327 Block *link = last->block->get_link(exit);
328 if(!link || !link->reserve(this))
330 pending_block = link;
334 if(route && link->get_turnout_id())
336 int path = route->get_turnout(link->get_turnout_id());
337 Turnout &turnout = trfc_mgr.get_control().get_turnout(link->get_turnout_id());
338 if(path>=0 && path!=turnout.get_path())
341 pending_block = link;
342 turnout.set_path(path);
347 rsv_blocks.push_back(BlockRef(link, link->get_endpoint_by_link(*last->block)));
348 last = &rsv_blocks.back();
349 if(last->block->get_sensor_id())
356 while(!rsv_blocks.empty() && !last->block->get_sensor_id())
358 last->block->reserve(0);
359 rsv_blocks.erase(--rsv_blocks.end());
360 if(!rsv_blocks.empty())
361 last = &rsv_blocks.back();
372 void Train::update_speed()
377 try_reserve = Time::TimeStamp();
378 set_status("Stopped");
383 for(list<BlockRef>::const_iterator i=rsv_blocks.begin(); i!=rsv_blocks.end(); ++i)
384 if(i->block->get_sensor_id())
387 unsigned slow_speed = find_speed(0.1); // 31.3 km/h
392 try_reserve = Time::now()+2*Time::sec;
393 set_status("Blocked");
395 else if(nsens==1 && target_speed>slow_speed)
397 loco.set_speed(slow_speed);
399 try_reserve = Time::now()+2*Time::sec;
404 loco.set_speed(target_speed);
405 try_reserve = Time::TimeStamp();
406 set_status(format("Traveling %d kmh", travel_speed));
411 float Train::get_real_speed(unsigned i) const
413 if(real_speed[i].weight)
414 return real_speed[i].speed;
418 for(low=i; low>0; --low)
419 if(real_speed[low].weight)
421 for(high=i; high<14; ++high)
422 if(real_speed[high].weight)
425 if(real_speed[high].weight)
427 if(real_speed[low].weight)
429 float f = float(i-low)/(high-low);
430 return real_speed[low].speed*(1-f)+real_speed[high].speed*f;
433 return real_speed[high].speed*float(i)/high;
435 else if(real_speed[low].weight)
436 return real_speed[low].speed*float(i)/low;
441 unsigned Train::find_speed(float real) const
443 if(real<=real_speed[0].speed)
448 for(unsigned i=0; (!high && i<=14); ++i)
449 if(real_speed[i].weight)
451 if(real_speed[i].speed<real)
460 return min(static_cast<unsigned>(low*real/real_speed[low].speed), 14U);
463 float f = (real-real_speed[low].speed)/(real_speed[high].speed-real_speed[low].speed);
464 return static_cast<unsigned>(low*(1-f)+high*f+0.5);
467 void Train::set_status(const string &s)
470 signal_status_changed.emit(s);
473 void Train::set_position(const Block::Endpoint &bep)
475 cur_track = bep.track;
476 cur_track_ep = bep.track_ep;
478 pos = cur_track->get_endpoint_position(cur_track_ep);
481 void Train::release_reserved_blocks()
483 for(list<BlockRef>::iterator i=rsv_blocks.begin(); i!=rsv_blocks.end(); ++i)
484 i->block->reserve(0);
489 Train::RealSpeed::RealSpeed():
494 void Train::RealSpeed::add(float s, float w)
496 speed = (speed*weight+s*w)/(weight+w);
497 weight = min(weight+w, 300.0f);
501 Train::Loader::Loader(Train &t):
502 DataFile::BasicLoader<Train>(t)
504 add("name", &Train::name);
505 add("real_speed", &Loader::real_speed);
508 void Train::Loader::real_speed(unsigned i, float speed, float weight)
510 obj.real_speed[i].speed = speed;
511 obj.real_speed[i].weight = weight;
514 } // namespace Marklin