source/libmarklin/layout.cpp

   1 /* $Id$
   2
   3 This file is part of the MSP Märklin suite
   4 Copyright © 2006-2010  Mikkosoft Productions, Mikko Rasa
   5 Distributed under the GPL
   6 */
   7
   8 #include <algorithm>
   9 #include <msp/core/refptr.h>
  10 #include <msp/datafile/parser.h>
  11 #include <msp/datafile/writer.h>
  12 #include <msp/io/print.h>
  13 #include <msp/time/utils.h>
  14 #include "block.h"
  15 #include "catalogue.h"
  16 #include "driver.h"
  17 #include "layout.h"
  18 #include "route.h"
  19 #include "track.h"
  20 #include "tracktype.h"
  21 #include "train.h"
  22 #include "vehicletype.h"
  23
  24 using namespace std;
  25 using namespace Msp;
  26
  27 namespace Marklin {
  28
  29 Layout::Layout(Catalogue &c, Driver *d):
  30         catalogue(c),
  31         driver(d),
  32         next_turnout_id(0x800)
  33 {
  34         if(driver)
  35                 driver->signal_sensor.connect(sigc::mem_fun(this, &Layout::sensor_event));
  36 }
  37
  38 Layout::~Layout()
  39 {
  40         delete driver;
  41         while(!trains.empty())
  42                 delete trains.begin()->second;
  43         while(!routes.empty())
  44                 delete *routes.begin();
  45         while(!tracks.empty())
  46                 delete *tracks.begin();
  47         while(!blocks.empty())
  48                 delete *blocks.begin();
  49 }
  50
  51 Driver &Layout::get_driver() const
  52 {
  53         if(!driver)
  54                 throw InvalidState("No driver");
  55         return *driver;
  56 }
  57
  58 void Layout::add_track(Track &t)
  59 {
  60         if(tracks.insert(&t).second)
  61         {
  62                 create_blocks();
  63                 signal_track_added.emit(t);
  64         }
  65 }
  66
  67 void Layout::remove_track(Track &t)
  68 {
  69         if(tracks.erase(&t))
  70         {
  71                 create_blocks(t);
  72                 signal_track_removed.emit(t);
  73         }
  74 }
  75
  76 unsigned Layout::allocate_turnout_id(bool dbl)
  77 {
  78         unsigned result = next_turnout_id++;
  79         if(dbl)
  80                 ++next_turnout_id;
  81         return result;
  82 }
  83
  84 void Layout::add_block(Block &b)
  85 {
  86         blocks.insert(&b);
  87 }
  88
  89 Block &Layout::get_block(unsigned id) const
  90 {
  91         for(set<Block *>::const_iterator i=blocks.begin(); i!=blocks.end(); ++i)
  92                 if((*i)->get_id()==id)
  93                         return **i;
  94
  95         throw KeyError("Unknown block", lexical_cast(id));
  96 }
  97
  98 Block &Layout::get_block_by_track(const Track &t) const
  99 {
 100         for(set<Block *>::const_iterator i=blocks.begin(); i!=blocks.end(); ++i)
 101                 if((*i)->get_tracks().count(const_cast<Track *>(&t)))
 102                         return **i;
 103
 104         throw InvalidParameterValue("No block found for track");
 105 }
 106
 107 void Layout::create_blocks()
 108 {
 109         set<Track *> used_tracks;
 110         for(set<Block *>::const_iterator i=blocks.begin(); i!=blocks.end(); ++i)
 111         {
 112                 const set<Track *> &btracks = (*i)->get_tracks();
 113                 used_tracks.insert(btracks.begin(), btracks.end());
 114         }
 115
 116         for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 117                 if(used_tracks.count(*i)==0)
 118                 {
 119                         Block *block = new Block(*this, **i);
 120                         used_tracks.insert(block->get_tracks().begin(), block->get_tracks().end());
 121                 }
 122
 123         for(set<Block *>::iterator i=blocks.begin(); i!=blocks.end(); ++i)
 124                 for(set<Block *>::iterator j=i; j!=blocks.end(); ++j)
 125                         if(j!=i)
 126                                 (*i)->check_link(**j);
 127 }
 128
 129 void Layout::create_blocks(const Track &track)
 130 {
 131         const vector<Track *> &links = track.get_links();
 132         for(set<Block *>::iterator i=blocks.begin(); i!=blocks.end();)
 133         {
 134                 bool del = (*i)->get_tracks().count(const_cast<Track *>(&track));
 135                 for(vector<Track *>::const_iterator j=links.begin(); (!del && j!=links.end()); ++j)
 136                         del = (*i)->get_tracks().count(*j);
 137
 138                 if(del)
 139                         delete *i++;
 140                 else
 141                         ++i;
 142         }
 143
 144         create_blocks();
 145 }
 146
 147 void Layout::remove_block(Block &b)
 148 {
 149         blocks.erase(&b);
 150 }
 151
 152 void Layout::add_route(Route &r)
 153 {
 154         if(routes.insert(&r).second)
 155                 signal_route_added.emit(r);
 156 }
 157
 158 Route &Layout::get_route(const string &name) const
 159 {
 160         for(set<Route *>::const_iterator i=routes.begin(); i!=routes.end(); ++i)
 161                 if((*i)->get_name()==name)
 162                         return **i;
 163         throw KeyError("Unknown route", name);
 164 }
 165
 166 void Layout::update_routes()
 167 {
 168         for(set<Route *>::iterator i=routes.begin(); i!=routes.end(); ++i)
 169                 (*i)->update_turnouts();
 170 }
 171
 172 void Layout::remove_route(Route &r)
 173 {
 174         if(routes.erase(&r))
 175                 signal_route_removed.emit(r);
 176 }
 177
 178 void Layout::add_train(Train &t)
 179 {
 180         if(trains.count(t.get_address()))
 181                 throw KeyError("Duplicate train address", lexical_cast(t.get_address()));
 182
 183         trains[t.get_address()] = &t;
 184         signal_train_added.emit(t);
 185 }
 186
 187 Train &Layout::get_train(unsigned addr) const
 188 {
 189         map<unsigned, Train *>::const_iterator i = trains.find(addr);
 190         if(i==trains.end())
 191                 throw KeyError("Unknown train", lexical_cast(addr));
 192         return *i->second;
 193 }
 194
 195 void Layout::remove_train(Train &t)
 196 {
 197         if(trains.erase(t.get_address()))
 198                 signal_train_removed.emit(t);
 199 }
 200
 201 void Layout::add_vehicle(Vehicle &v)
 202 {
 203         if(vehicles.insert(&v).second)
 204                 signal_vehicle_added.emit(v);
 205 }
 206
 207 void Layout::remove_vehicle(Vehicle &v)
 208 {
 209         if(vehicles.erase(&v))
 210                 signal_vehicle_removed.emit(v);
 211 }
 212
 213 void Layout::tick()
 214 {
 215         if(driver)
 216                 driver->tick();
 217
 218         Time::TimeStamp t = Time::now();
 219         Time::TimeDelta dt;
 220         if(last_tick)
 221                 dt = t-last_tick;
 222         last_tick = t;
 223
 224         for(map<unsigned, Train *>::iterator i=trains.begin(); i!=trains.end(); ++i)
 225                 i->second->tick(t, dt);
 226 }
 227
 228 void Layout::emergency(const string &msg)
 229 {
 230         if(driver)
 231                 driver->halt(true);
 232         IO::print("Emergency: %s\n", msg);
 233         signal_emergency.emit(msg);
 234 }
 235
 236 void Layout::save(const string &fn)
 237 {
 238         IO::BufferedFile out(fn, IO::M_WRITE);
 239         DataFile::Writer writer(out);
 240
 241         if(!base.empty())
 242                 writer.write((DataFile::Statement("base"), base));
 243
 244         for(set<Track *>::iterator i=tracks.begin(); i!=tracks.end(); ++i)
 245         {
 246                 DataFile::Statement st("track");
 247                 st.append((*i)->get_type().get_article_number());
 248                 (*i)->save(st.sub);
 249                 writer.write(st);
 250         }
 251
 252         for(set<Route *>::iterator i=routes.begin(); i!=routes.end(); ++i)
 253         {
 254                 if((*i)->is_temporary())
 255                         continue;
 256
 257                 DataFile::Statement st("route");
 258                 (*i)->save(st.sub);
 259                 writer.write(st);
 260         }
 261 }
 262
 263 void Layout::save_trains(const string &fn)
 264 {
 265         IO::BufferedFile out(fn, IO::M_WRITE);
 266         DataFile::Writer writer(out);
 267
 268         for(map<unsigned, Train *>::const_iterator i=trains.begin(); i!=trains.end(); ++i)
 269         {
 270                 DataFile::Statement st("train");
 271                 st.append(i->second->get_locomotive_type().get_article_number());
 272                 st.append(i->second->get_address());
 273                 i->second->save(st.sub);
 274                 writer.write(st);
 275         }
 276 }
 277
 278 void Layout::sensor_event(unsigned addr, bool state)
 279 {
 280         if(state)
 281         {
 282                 for(set<Block *>::iterator i=blocks.begin(); i!=blocks.end(); ++i)
 283                         if((*i)->get_sensor_id()==addr)
 284                         {
 285                                 if(!(*i)->get_train())
 286                                         emergency(format("Unreserved sensor %d triggered", addr));
 287                                 break;
 288                         }
 289         }
 290 }
 291
 292
 293 Layout::Loader::Loader(Layout &l):
 294         DataFile::BasicLoader<Layout>(l),
 295         new_tracks(false)
 296 {
 297         add("base",  &Layout::base);
 298         add("route", static_cast<void (Loader::*)()>(&Loader::route));
 299         add("route", static_cast<void (Loader::*)(const string &)>(&Loader::route));
 300         add("track", &Loader::track);
 301         add("train", &Loader::train);
 302 }
 303
 304 void Layout::Loader::finish()
 305 {
 306         for(set<Track *>::iterator i=obj.tracks.begin(); i!=obj.tracks.end(); ++i)
 307                 (*i)->check_slope();
 308 }
 309
 310 void Layout::Loader::route()
 311 {
 312         Route *rte = new Route(obj);
 313         load_sub(*rte);
 314 }
 315
 316 void Layout::Loader::route(const string &n)
 317 {
 318         Route *rte = new Route(obj);
 319         rte->set_name(n);
 320         load_sub(*rte);
 321 }
 322
 323 void Layout::Loader::track(unsigned art_nr)
 324 {
 325         Track *trk = new Track(obj, obj.catalogue.get_track(art_nr));
 326         load_sub(*trk);
 327         new_tracks = true;
 328         for(set<Track *>::iterator i=obj.tracks.begin(); i!=obj.tracks.end(); ++i)
 329                 if(*i!=trk)
 330                         trk->snap_to(**i, true);
 331 }
 332
 333 void Layout::Loader::train(unsigned art_nr, unsigned addr)
 334 {
 335         Train *trn = new Train(obj, obj.catalogue.get_vehicle(art_nr), addr);
 336         load_sub(*trn);
 337 }
 338
 339 } // namespace Marklin