source/libr2c2/layout.cpp

   1 #include <algorithm>
   2 #include <msp/core/maputils.h>
   3 #include <msp/core/refptr.h>
   4 #include <msp/datafile/parser.h>
   5 #include <msp/datafile/writer.h>
   6 #include <msp/io/print.h>
   7 #include <msp/time/utils.h>
   8 #include "block.h"
   9 #include "catalogue.h"
  10 #include "driver.h"
  11 #include "layout.h"
  12 #include "route.h"
  13 #include "signal.h"
  14 #include "signaltype.h"
  15 #include "track.h"
  16 #include "tracktype.h"
  17 #include "train.h"
  18 #include "vehicletype.h"
  19 #include "zone.h"
  20
  21 using namespace std;
  22 using namespace Msp;
  23
  24 namespace {
  25
  26 bool zone_order(const R2C2::Zone *z1, const R2C2::Zone *z2)
  27 {
  28         return z1->get_number()<z2->get_number();
  29 }
  30
  31 }
  32
  33
  34 namespace R2C2 {
  35
  36 Layout::Layout(Catalogue &c, Driver *d):
  37         catalogue(c),
  38         driver(d),
  39         next_turnout_id(0x800)
  40 { }
  41
  42 Layout::~Layout()
  43 {
  44         delete driver;
  45         driver = 0;
  46
  47         while(!trains.empty())
  48                 delete trains.begin()->second;
  49         while(!routes.empty())
  50                 delete *routes.begin();
  51         while(!zones.empty())
  52                 delete *zones.begin();
  53         while(!tracks.empty())
  54                 delete *tracks.begin();
  55         while(!blocks.empty())
  56                 delete *blocks.begin();
  57 }
  58
  59 Driver &Layout::get_driver() const
  60 {
  61         if(!driver)
  62                 throw logic_error("!driver");
  63         return *driver;
  64 }
  65
  66 void Layout::add_track(Track &t)
  67 {
  68         if(tracks.insert(&t).second)
  69         {
  70                 create_blocks();
  71                 signal_track_added.emit(t);
  72         }
  73 }
  74
  75 void Layout::remove_track(Track &t)
  76 {
  77         if(tracks.erase(&t))
  78         {
  79                 create_blocks(t);
  80                 signal_track_removed.emit(t);
  81         }
  82 }
  83
  84 void Layout::add_signal(Signal &s)
  85 {
  86         if(signals.insert(&s).second)
  87                 signal_signal_added.emit(s);
  88 }
  89
  90 void Layout::remove_signal(Signal &s)
  91 {
  92         if(signals.erase(&s))
  93                 signal_signal_removed.emit(s);
  94 }
  95
  96 Track *Layout::pick_track(const Vector &start, const Vector &ray)
  97 {
  98         for(set<Track *>::iterator i=tracks.begin(); i!=tracks.end(); ++i)
  99                 if((*i)->collide_ray(start, ray))
 100                         return *i;
 101
 102         return 0;
 103 }
 104
 105 unsigned Layout::allocate_turnout_id()
 106 {
 107         set<unsigned> used_ids;
 108         for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 109                 if((*i)->get_turnout_id())
 110                         used_ids.insert((*i)->get_turnout_id());
 111
 112         unsigned result = next_turnout_id;
 113         while(used_ids.count(result))
 114                 ++result;
 115         next_turnout_id = result+1;
 116
 117         return result;
 118 }
 119
 120 void Layout::add_block(Block &b)
 121 {
 122         blocks.insert(&b);
 123         b.signal_reserved.connect(sigc::bind<0>(signal_block_reserved, sigc::ref(b)));
 124         if(b.get_sensor_id())
 125         {
 126                 b.signal_state_changed.connect(sigc::bind<0>(sigc::mem_fun(this, &Layout::block_state_changed), sigc::ref(b)));
 127                 b.signal_state_changed.connect(sigc::bind<0>(signal_block_state_changed, sigc::ref(b)));
 128         }
 129 }
 130
 131 Block &Layout::get_block(unsigned id) const
 132 {
 133         for(set<Block *>::const_iterator i=blocks.begin(); i!=blocks.end(); ++i)
 134                 if((*i)->get_id()==id)
 135                         return **i;
 136
 137         throw key_error(id);
 138 }
 139
 140 void Layout::create_blocks()
 141 {
 142         set<Track *> used_tracks;
 143         for(set<Block *>::const_iterator i=blocks.begin(); i!=blocks.end(); ++i)
 144         {
 145                 const set<Track *> &btracks = (*i)->get_tracks();
 146                 used_tracks.insert(btracks.begin(), btracks.end());
 147         }
 148
 149         for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 150                 if(used_tracks.count(*i)==0)
 151                 {
 152                         Block *block = new Block(*this, **i);
 153                         used_tracks.insert(block->get_tracks().begin(), block->get_tracks().end());
 154                 }
 155
 156         for(set<Block *>::iterator i=blocks.begin(); i!=blocks.end(); ++i)
 157                 for(set<Block *>::iterator j=i; j!=blocks.end(); ++j)
 158                         if(j!=i)
 159                                 (*i)->check_link(**j);
 160 }
 161
 162 void Layout::create_blocks(Track &track)
 163 {
 164         /* Must collect the blocks in a set first while all tracks are still
 165         guaranteed to have blocks and to avoid duplicate deletes */
 166         set<Block *> del_blocks;
 167
 168         del_blocks.insert(&track.get_block());
 169
 170         const vector<Track *> &links = track.get_links();
 171         for(vector<Track *>::const_iterator i=links.begin(); i!=links.end(); ++i)
 172                 if(*i)
 173                         del_blocks.insert(&(*i)->get_block());
 174
 175         for(set<Block *>::iterator i=del_blocks.begin(); i!=del_blocks.end(); ++i)
 176                 delete *i;
 177
 178         create_blocks();
 179 }
 180
 181 void Layout::remove_block(Block &b)
 182 {
 183         blocks.erase(&b);
 184 }
 185
 186 void Layout::add_route(Route &r)
 187 {
 188         if(routes.insert(&r).second)
 189                 signal_route_added.emit(r);
 190 }
 191
 192 Route &Layout::get_route(const string &name) const
 193 {
 194         for(set<Route *>::const_iterator i=routes.begin(); i!=routes.end(); ++i)
 195                 if((*i)->get_name()==name)
 196                         return **i;
 197         throw key_error(name);
 198 }
 199
 200 void Layout::update_routes()
 201 {
 202         for(set<Route *>::iterator i=routes.begin(); i!=routes.end(); ++i)
 203                 (*i)->update_turnouts();
 204 }
 205
 206 void Layout::remove_route(Route &r)
 207 {
 208         if(routes.erase(&r))
 209                 signal_route_removed.emit(r);
 210 }
 211
 212 void Layout::add_zone(Zone &z)
 213 {
 214         if(zones.insert(&z).second)
 215                 signal_zone_added.emit(z);
 216 }
 217
 218 Layout::ZoneArray Layout::get_zones(const string &group) const
 219 {
 220         ZoneArray result;
 221         for(ZoneSet::const_iterator i=zones.begin(); i!=zones.end(); ++i)
 222                 if((*i)->get_group()==group)
 223                         result.push_back(*i);
 224
 225         sort(result.begin(), result.end(), zone_order);
 226
 227         return result;
 228 }
 229
 230 Zone &Layout::get_zone(const string &group, unsigned num) const
 231 {
 232         for(ZoneSet::const_iterator i=zones.begin(); i!=zones.end(); ++i)
 233                 if((*i)->get_group()==group && (*i)->get_number()==num)
 234                         return **i;
 235
 236         throw key_error(format("%s %d", group, num));
 237 }
 238
 239 void Layout::remove_zone(Zone &z)
 240 {
 241         if(zones.erase(&z))
 242                 signal_zone_removed.emit(z);
 243 }
 244
 245 void Layout::add_train(Train &t)
 246 {
 247         insert_unique(trains, t.get_address(), &t);
 248         signal_train_added.emit(t);
 249 }
 250
 251 Train &Layout::get_train(unsigned addr) const
 252 {
 253         return *get_item(trains, addr);
 254 }
 255
 256 void Layout::remove_train(Train &t)
 257 {
 258         if(trains.erase(t.get_address()))
 259                 signal_train_removed.emit(t);
 260 }
 261
 262 void Layout::add_vehicle(Vehicle &v)
 263 {
 264         if(vehicles.insert(&v).second)
 265                 signal_vehicle_added.emit(v);
 266 }
 267
 268 void Layout::remove_vehicle(Vehicle &v)
 269 {
 270         if(vehicles.erase(&v))
 271                 signal_vehicle_removed.emit(v);
 272 }
 273
 274 void Layout::tick()
 275 {
 276         if(driver)
 277                 driver->tick();
 278
 279         Time::TimeStamp t = Time::now();
 280         Time::TimeDelta dt;
 281         if(last_tick)
 282                 dt = t-last_tick;
 283         last_tick = t;
 284
 285         for(set<Block *>::iterator i=blocks.begin(); i!=blocks.end(); ++i)
 286                 (*i)->tick(dt);
 287         for(set<Signal *>::iterator i=signals.begin(); i!=signals.end(); ++i)
 288                 (*i)->tick(dt);
 289         for(map<unsigned, Train *>::iterator i=trains.begin(); i!=trains.end(); ++i)
 290                 i->second->tick(t, dt);
 291 }
 292
 293 void Layout::emergency(const string &msg)
 294 {
 295         if(driver)
 296                 driver->halt(true);
 297         IO::print("Emergency: %s\n", msg);
 298         signal_emergency.emit(msg);
 299 }
 300
 301 void Layout::save(const string &fn) const
 302 {
 303         IO::BufferedFile out(fn, IO::M_WRITE);
 304         DataFile::Writer writer(out);
 305
 306         if(!base.empty())
 307                 writer.write((DataFile::Statement("base"), base));
 308
 309         for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 310         {
 311                 DataFile::Statement st("track");
 312                 st.append((*i)->get_type().get_article_number());
 313                 (*i)->save(st.sub);
 314                 writer.write(st);
 315         }
 316
 317         for(set<Signal *>::const_iterator i=signals.begin(); i!=signals.end(); ++i)
 318         {
 319                 DataFile::Statement st("signal");
 320                 st.append((*i)->get_type().get_article_number());
 321                 (*i)->save(st.sub);
 322                 writer.write(st);
 323         }
 324
 325         for(set<Route *>::const_iterator i=routes.begin(); i!=routes.end(); ++i)
 326         {
 327                 if((*i)->is_temporary())
 328                         continue;
 329
 330                 DataFile::Statement st("route");
 331                 (*i)->save(st.sub);
 332                 writer.write(st);
 333         }
 334
 335         for(ZoneSet::const_iterator i=zones.begin(); i!=zones.end(); ++i)
 336         {
 337                 DataFile::Statement st("zone");
 338                 (*i)->save(st.sub);
 339                 writer.write(st);
 340         }
 341 }
 342
 343 void Layout::save_dynamic(const string &fn) const
 344 {
 345         IO::BufferedFile out(fn, IO::M_WRITE);
 346         DataFile::Writer writer(out);
 347
 348         for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 349                 if(unsigned tid = (*i)->get_turnout_id())
 350                         writer.write((DataFile::Statement("turnout"), tid, (*i)->get_active_path()));
 351
 352         for(map<unsigned, Train *>::const_iterator i=trains.begin(); i!=trains.end(); ++i)
 353         {
 354                 DataFile::Statement st("train");
 355                 st.append(i->second->get_locomotive_type().get_article_number());
 356                 st.append(i->second->get_address());
 357                 st.append(i->second->get_protocol());
 358                 i->second->save(st.sub);
 359                 writer.write(st);
 360         }
 361 }
 362
 363 void Layout::block_state_changed(Block &block, Block::State state)
 364 {
 365         if(state==Block::ACTIVE && !block.get_train())
 366                 emergency(format("Unreserved sensor %d triggered", block.get_sensor_id()));
 367 }
 368
 369
 370 Layout::Loader::Loader(Layout &l):
 371         DataFile::ObjectLoader<Layout>(l),
 372         new_tracks(false)
 373 {
 374         add("base",  &Layout::base);
 375         add("route", static_cast<void (Loader::*)()>(&Loader::route));
 376         add("signal", &Loader::signal);
 377         add("track", static_cast<void (Loader::*)(ArticleNumber)>(&Loader::track));
 378         add("train", static_cast<void (Loader::*)(ArticleNumber, unsigned, const std::string &)>(&Loader::train));
 379         add("turnout", &Loader::turnout);
 380         add("zone",  &Loader::zone);
 381
 382         // Deprecated aliases
 383         add("route", static_cast<void (Loader::*)(const string &)>(&Loader::route));
 384         add("track", static_cast<void (Loader::*)(unsigned)>(&Loader::track));
 385         add("train", static_cast<void (Loader::*)(unsigned, unsigned, const std::string &)>(&Loader::train));
 386 }
 387
 388 void Layout::Loader::finish()
 389 {
 390         for(set<Track *>::iterator i=obj.tracks.begin(); i!=obj.tracks.end(); ++i)
 391                 (*i)->check_slope();
 392 }
 393
 394 void Layout::Loader::route()
 395 {
 396         Route *rte = new Route(obj);
 397         load_sub(*rte);
 398 }
 399
 400 void Layout::Loader::route(const string &n)
 401 {
 402         Route *rte = new Route(obj);
 403         rte->set_name(n);
 404         load_sub(*rte);
 405 }
 406
 407 void Layout::Loader::signal(ArticleNumber art_nr)
 408 {
 409         Signal *sig = new Signal(obj, obj.catalogue.get_signal(art_nr));
 410         load_sub(*sig);
 411 }
 412
 413 void Layout::Loader::track(unsigned art_nr)
 414 {
 415         track(ArticleNumber(art_nr));
 416 }
 417
 418 void Layout::Loader::track(ArticleNumber art_nr)
 419 {
 420         Track *trk = new Track(obj, obj.catalogue.get_track(art_nr));
 421         load_sub(*trk);
 422         new_tracks = true;
 423         for(set<Track *>::iterator i=obj.tracks.begin(); i!=obj.tracks.end(); ++i)
 424                 if(*i!=trk)
 425                         trk->snap_to(**i, true);
 426 }
 427
 428 void Layout::Loader::train(unsigned art_nr, unsigned addr, const std::string &proto)
 429 {
 430         train(ArticleNumber(art_nr), addr, proto);
 431 }
 432
 433 void Layout::Loader::train(ArticleNumber art_nr, unsigned addr, const std::string &proto)
 434 {
 435         Train *trn = new Train(obj, obj.catalogue.get_vehicle(art_nr), addr, proto);
 436         load_sub(*trn);
 437 }
 438
 439 void Layout::Loader::turnout(unsigned addr, unsigned path)
 440 {
 441         if(obj.driver)
 442                 obj.driver->set_turnout(addr, path);
 443 }
 444
 445 void Layout::Loader::zone()
 446 {
 447         Zone *zne = new Zone(obj);
 448         load_sub(*zne);
 449 }
 450
 451 } // namespace R2C2