source/libr2c2/timetable.cpp

   1 #include <msp/strings/format.h>
   2 #include <msp/time/units.h>
   3 #include "block.h"
   4 #include "catalogue.h"
   5 #include "driver.h"
   6 #include "layout.h"
   7 #include "timetable.h"
   8 #include "train.h"
   9
  10 using namespace std;
  11 using namespace Msp;
  12
  13 namespace R2C2 {
  14
  15 Timetable::Timetable(Train &t):
  16         TrainAI(t),
  17         enabled(false),
  18         current_row(0),
  19         executing(true),
  20         pending_block(0),
  21         pending_train(0),
  22         arrived(false)
  23 {
  24         train.signal_advanced.connect(sigc::mem_fun(this, &Timetable::train_advanced));
  25         train.signal_ai_event.connect(sigc::mem_fun(this, &Timetable::event));
  26         Layout &layout = train.get_layout();
  27         layout.signal_block_state_changed.connect(sigc::mem_fun(this, &Timetable::block_state_changed));
  28         layout.signal_block_reserved.connect(sigc::mem_fun(this, &Timetable::block_reserved));
  29 }
  30
  31 void Timetable::set_enabled(bool e)
  32 {
  33         enabled = e;
  34 }
  35
  36 void Timetable::reset()
  37 {
  38         current_row = 0;
  39         wait_timeout = Time::TimeStamp();
  40         pending_block = 0;
  41         executing = true;
  42 }
  43
  44 void Timetable::clear()
  45 {
  46         rows.clear();
  47         reset();
  48 }
  49
  50 void Timetable::append(const Row &row)
  51 {
  52         rows.push_back(row);
  53 }
  54
  55 void Timetable::insert(unsigned i, const Row &row)
  56 {
  57         if(i>rows.size())
  58                 throw out_of_range("Timetable::insert");
  59
  60         rows.insert(rows.begin()+i, row);
  61         if(i<=current_row)
  62                 ++current_row;
  63 }
  64
  65 const Timetable::Row &Timetable::get_row(unsigned i) const
  66 {
  67         if(i>=rows.size())
  68                 throw out_of_range("Timetable::get_row");
  69         return rows[i];
  70 }
  71
  72 void Timetable::tick(const Time::TimeStamp &t, const Time::TimeDelta &)
  73 {
  74         if(rows.empty() || !enabled)
  75                 return;
  76
  77         if(wait_timeout && t>=wait_timeout)
  78         {
  79                 wait_timeout = Time::TimeStamp();
  80                 current_row = (current_row+1)%rows.size();
  81                 executing = true;
  82         }
  83
  84         if(executing)
  85         {
  86                 Row &row = rows[current_row];
  87                 switch(row.type)
  88                 {
  89                 case GOTO_SENSOR:
  90                         arrived = false;
  91                         train.ai_message(Message("go-to-track", &get_sensor(row.get_param<unsigned>(0))));
  92                         break;
  93                 case GOTO_ZONE:
  94                         arrived = false;
  95                         train.ai_message(Message("go-to-zone", &get_zone(row.get_param<string>(0))));
  96                         break;
  97                 case TRAVEL_TO:
  98                         {
  99                                 Block *block = &get_sensor(row.get_param<unsigned>(0)).get_block();
 100                                 if(block->get_train()!=&train || block->get_state()<Block::MAYBE_ACTIVE)
 101                                 {
 102                                         pending_block = block;
 103                                         pending_train = &train;
 104                                         executing = false;
 105                                 }
 106                         }
 107                         break;
 108                 case TRAVEL_PAST:
 109                         pending_block = &get_turnout(row.get_param<unsigned>(0)).get_block();
 110                         pending_train = (pending_block->get_train()==&train ? 0 : &train);
 111                         executing = false;
 112                         break;
 113                 case WAIT_TIME:
 114                         wait_timeout = t+row.get_param<unsigned>(0)*Time::sec;
 115                         executing = false;
 116                         break;
 117                 case WAIT_UNTIL:
 118                         {
 119                                 unsigned unixtime = t.to_unixtime();
 120                                 unsigned mod = row.get_param<unsigned>(1);
 121                                 unsigned secs = ((mod+row.get_param<unsigned>(0))-(unixtime%mod))%mod;
 122                                 wait_timeout = t+secs*Time::sec;
 123                                 executing = false;
 124                         }
 125                         break;
 126                 case WAIT_TRAIN:
 127                         {
 128                                 Train *other_train = &train.get_layout().get_train(row.get_param<unsigned>(0));
 129                                 Block *block = &get_sensor(row.get_param<unsigned>(1)).get_block();
 130                                 if(block->get_train()!=other_train || block->get_state()<Block::MAYBE_ACTIVE)
 131                                 {
 132                                         pending_train = other_train;
 133                                         pending_block = block;
 134                                         executing = false;
 135                                 }
 136                         }
 137                         break;
 138                 case ARRIVE:
 139                         if(!arrived)
 140                                 executing = false;
 141                         arrived = false;
 142                         break;
 143                 case SPEED:
 144                         if(!arrived)
 145                         {
 146                                 float speed = row.get_param<unsigned>(0)/3.6*train.get_layout().get_catalogue().get_scale();
 147                                 train.ai_message(Message("set-target-speed", speed));
 148                         }
 149                         break;
 150                 case REVERSE:
 151                         train.ai_message(Message("toggle-reverse"));
 152                         break;
 153                 case ROUTE:
 154                         train.ai_message(Message("set-route", &train.get_layout().get_route(row.get_param<string>(0))));
 155                         break;
 156                 }
 157
 158                 if(executing)
 159                         current_row = (current_row+1)%rows.size();
 160         }
 161 }
 162
 163 void Timetable::save(list<DataFile::Statement> &st) const
 164 {
 165         for(vector<Row>::const_iterator i=rows.begin(); i!=rows.end(); ++i)
 166                 st.push_back(i->save());
 167 }
 168
 169 Track &Timetable::get_sensor(unsigned id)
 170 {
 171         Block &block = train.get_layout().get_block(id|0x1000);
 172         return **block.get_tracks().begin();
 173 }
 174
 175 Track &Timetable::get_turnout(unsigned id)
 176 {
 177         Block &block = train.get_layout().get_block(id|0x2000);
 178         return **block.get_tracks().begin();
 179 }
 180
 181 Zone &Timetable::get_zone(const string &name)
 182 {
 183         string::size_type space = name.rfind(' ');
 184         if(space==string::npos || space==0)
 185                 throw invalid_argument("Timetable::get_zone");
 186         unsigned number = lexical_cast<unsigned>(name.substr(space+1));
 187         return train.get_layout().get_zone(name.substr(0, space), number);
 188 }
 189
 190 void Timetable::block_state_changed(Block &block, Block::State state)
 191 {
 192         if(rows.empty() || !enabled)
 193                 return;
 194
 195         if(&block==pending_block && block.get_train()==pending_train && state>=Block::MAYBE_ACTIVE)
 196         {
 197                 pending_block = 0;
 198                 current_row = (current_row+1)%rows.size();
 199                 executing = true;
 200         }
 201 }
 202
 203 void Timetable::block_reserved(Block &block, Train *trn)
 204 {
 205         if(rows.empty() || !enabled)
 206                 return;
 207
 208         if(&block==pending_block && trn==pending_train)
 209         {
 210                 Row &row = rows[current_row];
 211                 if(row.type==TRAVEL_PAST && !pending_train)
 212                 {
 213                         pending_block = 0;
 214                         current_row = (current_row+1)%rows.size();
 215                         executing = true;
 216                 }
 217         }
 218 }
 219
 220 void Timetable::train_advanced(Block &block)
 221 {
 222         if(rows.empty() || !enabled)
 223                 return;
 224
 225         Row &row = rows[current_row];
 226         if(row.type==TRAVEL_PAST && &block==pending_block && pending_train)
 227                 pending_train = 0;
 228 }
 229
 230 void Timetable::event(TrainAI &, const Message &ev)
 231 {
 232         if(ev.type=="arrived")
 233         {
 234                 if(rows.empty() || !enabled)
 235                         return;
 236
 237                 Row &row = rows[current_row];
 238                 if(row.type==ARRIVE)
 239                 {
 240                         current_row = (current_row+1)%rows.size();
 241                         executing = true;
 242                 }
 243                 else
 244                         arrived = true;
 245         }
 246 }
 247
 248
 249 Timetable::Row::Row(RowType t):
 250         type(t)
 251 { }
 252
 253 template<typename T>
 254 Timetable::Row::Row(RowType t, const T &p):
 255         type(t)
 256 {
 257         params.push_back(p);
 258 }
 259
 260 template<typename T>
 261 const T &Timetable::Row::get_param(unsigned i) const
 262 {
 263         if(i>=params.size())
 264                 throw out_of_range("Timetable::Row::get_param");
 265         return params[i].value<T>();
 266 }
 267
 268 string Timetable::Row::str() const
 269 {
 270         switch(type)
 271         {
 272         case GOTO_SENSOR:
 273                 return format("set route to sensor %d", get_param<unsigned>(0));
 274         case GOTO_ZONE:
 275                 return "set route to "+get_param<string>(0);
 276         case TRAVEL_TO:
 277                 return format("travel to sensor %d", get_param<unsigned>(0));
 278         case TRAVEL_PAST:
 279                 return format("travel past turnout %d", get_param<unsigned>(0));
 280         case WAIT_TIME:
 281                 return format("wait for %d seconds", get_param<unsigned>(0));
 282         case WAIT_UNTIL:
 283                 return format("wait until %d mod %d seconds", get_param<unsigned>(0), get_param<unsigned>(1));
 284         case WAIT_TRAIN:
 285                 return format("wait for train %d at sensor %d", get_param<unsigned>(0), get_param<unsigned>(1));
 286         case ARRIVE:
 287                 return "travel until arrival";
 288         case SPEED:
 289                 return format("set speed %d km/h", get_param<unsigned>(0));
 290         case REVERSE:
 291                 return "reverse";
 292         case ROUTE:
 293                 return "set route "+get_param<string>(0);
 294         default:
 295                 return "invalid row";
 296         }
 297 }
 298
 299 DataFile::Statement Timetable::Row::save() const
 300 {
 301         switch(type)
 302         {
 303         case GOTO_SENSOR:
 304                 return DataFile::Statement("goto_sensor"), get_param<unsigned>(0);
 305         case GOTO_ZONE:
 306                 return DataFile::Statement("goto_zone"), get_param<string>(0);
 307         case TRAVEL_TO:
 308                 return DataFile::Statement("travel_to"), get_param<unsigned>(0);
 309         case TRAVEL_PAST:
 310                 return DataFile::Statement("travel_past"), get_param<unsigned>(0);
 311         case WAIT_TIME:
 312                 return DataFile::Statement("wait"), get_param<unsigned>(0);
 313         case WAIT_UNTIL:
 314                 return DataFile::Statement("wait_until"), get_param<unsigned>(0), get_param<unsigned>(1);
 315         case WAIT_TRAIN:
 316                 return DataFile::Statement("wait_train"), get_param<unsigned>(0), get_param<unsigned>(1);
 317         case ARRIVE:
 318                 return DataFile::Statement("arrive");
 319         case SPEED:
 320                 return DataFile::Statement("speed"), get_param<unsigned>(0);
 321         case REVERSE:
 322                 return DataFile::Statement("reverse");
 323         case ROUTE:
 324                 return DataFile::Statement("route"), get_param<string>(0);
 325         default:
 326                 return DataFile::Statement();
 327         }
 328 }
 329
 330 Timetable::Row Timetable::Row::parse(const string &s)
 331 {
 332         if(!s.compare(0, 7, "travel "))
 333         {
 334                 if(!s.compare(7, 10, "to sensor "))
 335                         return Row(TRAVEL_TO, lexical_cast<unsigned>(s.substr(17)));
 336                 else if(!s.compare(7, 13, "past turnout "))
 337                         return Row(TRAVEL_PAST, lexical_cast<unsigned>(s.substr(20)));
 338                 else if(!s.compare(7, string::npos, "until arrival"))
 339                         return Row(ARRIVE);
 340         }
 341         else if(!s.compare(0, 9, "wait for "))
 342         {
 343                 if(isdigit(s[9]))
 344                 {
 345                         unsigned nondigit = 10;
 346                         while(nondigit<s.size() && isdigit(s[nondigit]))
 347                                 ++nondigit;
 348                         return Row(WAIT_TIME, lexical_cast<unsigned>(s.substr(9, nondigit-9)));
 349                 }
 350                 else if(!s.compare(9, 6, "train "))
 351                 {
 352                         string::size_type at = s.find(" at sensor ", 15);
 353                         if(at!=string::npos)
 354                         {
 355                                 Row row(WAIT_TRAIN, lexical_cast<unsigned>(s.substr(15, at-15)));
 356                                 row.params.push_back(lexical_cast<unsigned>(s.substr(at+11)));
 357                                 return row;
 358                         }
 359                 }
 360         }
 361         else if(!s.compare(0, 11, "wait until "))
 362         {
 363                 string::size_type mod = s.find(" mod ", 11);
 364                 unsigned nondigit = (mod!=string::npos ? mod+5 : 11);
 365                 while(nondigit<s.size() && isdigit(s[nondigit]))
 366                         ++nondigit;
 367                 if(mod!=string::npos)
 368                 {
 369                         unsigned time = lexical_cast<unsigned>(s.substr(11, mod-11));
 370                         Row row(WAIT_UNTIL, time);
 371                         row.params.push_back(lexical_cast<unsigned>(s.substr(mod+5, nondigit-mod-5)));
 372                         return row;
 373                 }
 374                 else
 375                 {
 376                         unsigned time = lexical_cast<unsigned>(s.substr(11, nondigit-11));
 377                         Row row(WAIT_UNTIL, time);
 378                         row.params.push_back(3600);
 379                         return row;
 380                 }
 381         }
 382         else if(!s.compare(0, 10, "set speed "))
 383         {
 384                 unsigned nondigit = 11;
 385                 while(nondigit<s.size() && (isdigit(s[nondigit]) || s[nondigit]=='-'))
 386                         ++nondigit;
 387                 return Row(SPEED, lexical_cast<unsigned>(s.substr(10, nondigit-10)));
 388         }
 389         else if(s=="reverse")
 390                 return Row(REVERSE);
 391         else if(!s.compare(0, 10, "set route "))
 392         {
 393                 if(!s.compare(10, 3, "to "))
 394                 {
 395                         if(!s.compare(13, 7, "sensor "))
 396                                 return Row(GOTO_SENSOR, lexical_cast<unsigned>(s.substr(20)));
 397                         else
 398                                 return Row(GOTO_ZONE, s.substr(13));
 399                 }
 400                 return Row(ROUTE, s.substr(10));
 401         }
 402
 403         throw invalid_argument("Timetable::Row::parse");
 404 }
 405
 406
 407 Timetable::Loader::Loader(Timetable &tt):
 408         DataFile::ObjectLoader<Timetable>(tt)
 409 {
 410         add("arrive",      &Loader::arrive);
 411         add("goto_sensor", &Loader::goto_sensor);
 412         add("goto_zone",   &Loader::goto_zone);
 413         add("route",       &Loader::route);
 414         add("speed",       &Loader::speed);
 415         add("reverse",     &Loader::reverse);
 416         add("travel_to",   &Loader::travel_to);
 417         add("travel_past", &Loader::travel_past);
 418         add("wait",        &Loader::wait);
 419         add("wait_train",  &Loader::wait_train);
 420         add("wait_until",  &Loader::wait_until);
 421
 422         // Deprecated alias
 423         add("goto",        &Loader::goto_sensor_str);
 424         add("travel",      &Loader::travel_to);
 425 }
 426
 427 void Timetable::Loader::arrive()
 428 {
 429         obj.rows.push_back(Row(ARRIVE));
 430 }
 431
 432 void Timetable::Loader::goto_sensor(unsigned s)
 433 {
 434         obj.rows.push_back(Row(GOTO_SENSOR, s));
 435 }
 436
 437 void Timetable::Loader::goto_sensor_str(const string &s)
 438 {
 439         if(!s.compare(0, 7, "sensor "))
 440                 obj.rows.push_back(Row(GOTO_SENSOR, lexical_cast<unsigned>(s.substr(7))));
 441 }
 442
 443 void Timetable::Loader::goto_zone(const string &z)
 444 {
 445         obj.rows.push_back(Row(GOTO_ZONE, z));
 446 }
 447
 448 void Timetable::Loader::route(const string &r)
 449 {
 450         obj.rows.push_back(Row(ROUTE, r));
 451 }
 452
 453 void Timetable::Loader::reverse()
 454 {
 455         obj.rows.push_back(Row(REVERSE));
 456 }
 457
 458 void Timetable::Loader::speed(unsigned s)
 459 {
 460         obj.rows.push_back(Row(SPEED, s));
 461 }
 462
 463 void Timetable::Loader::travel_to(unsigned s)
 464 {
 465         obj.rows.push_back(Row(TRAVEL_TO, s));
 466 }
 467
 468 void Timetable::Loader::travel_past(unsigned s)
 469 {
 470         obj.rows.push_back(Row(TRAVEL_PAST, s));
 471 }
 472
 473 void Timetable::Loader::wait(unsigned t)
 474 {
 475         obj.rows.push_back(Row(WAIT_TIME, t));
 476 }
 477
 478 void Timetable::Loader::wait_train(unsigned t, unsigned s)
 479 {
 480         Row row(WAIT_TRAIN, t);
 481         row.params.push_back(s);
 482         obj.rows.push_back(row);
 483 }
 484
 485 void Timetable::Loader::wait_until(unsigned t, unsigned m)
 486 {
 487         Row row(WAIT_UNTIL, t);
 488         row.params.push_back(m);
 489         obj.rows.push_back(row);
 490 }
 491
 492 } // namespace R2C2