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 void Layout::create_blocks()
  99 {
 100         set<Track *> used_tracks;
 101         for(set<Block *>::const_iterator i=blocks.begin(); i!=blocks.end(); ++i)
 102         {
 103                 const set<Track *> &btracks = (*i)->get_tracks();
 104                 used_tracks.insert(btracks.begin(), btracks.end());
 105         }
 106
 107         for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 108                 if(used_tracks.count(*i)==0)
 109                 {
 110                         Block *block = new Block(*this, **i);
 111                         used_tracks.insert(block->get_tracks().begin(), block->get_tracks().end());
 112                 }
 113
 114         for(set<Block *>::iterator i=blocks.begin(); i!=blocks.end(); ++i)
 115                 for(set<Block *>::iterator j=i; j!=blocks.end(); ++j)
 116                         if(j!=i)
 117                                 (*i)->check_link(**j);
 118 }
 119
 120 void Layout::create_blocks(Track &track)
 121 {
 122         /* Must collect the blocks in a set first while all tracks are still
 123         guaranteed to have blocks and to avoid duplicate deletes */
 124         set<Block *> del_blocks;
 125
 126         del_blocks.insert(&track.get_block());
 127
 128         const vector<Track *> &links = track.get_links();
 129         for(vector<Track *>::const_iterator i=links.begin(); i!=links.end(); ++i)
 130                 if(*i)
 131                         del_blocks.insert(&(*i)->get_block());
 132
 133         for(set<Block *>::iterator i=del_blocks.begin(); i!=del_blocks.end(); ++i)
 134                 delete *i;
 135
 136         create_blocks();
 137 }
 138
 139 void Layout::remove_block(Block &b)
 140 {
 141         blocks.erase(&b);
 142 }
 143
 144 void Layout::add_route(Route &r)
 145 {
 146         if(routes.insert(&r).second)
 147                 signal_route_added.emit(r);
 148 }
 149
 150 Route &Layout::get_route(const string &name) const
 151 {
 152         for(set<Route *>::const_iterator i=routes.begin(); i!=routes.end(); ++i)
 153                 if((*i)->get_name()==name)
 154                         return **i;
 155         throw KeyError("Unknown route", name);
 156 }
 157
 158 void Layout::update_routes()
 159 {
 160         for(set<Route *>::iterator i=routes.begin(); i!=routes.end(); ++i)
 161                 (*i)->update_turnouts();
 162 }
 163
 164 void Layout::remove_route(Route &r)
 165 {
 166         if(routes.erase(&r))
 167                 signal_route_removed.emit(r);
 168 }
 169
 170 void Layout::add_train(Train &t)
 171 {
 172         if(trains.count(t.get_address()))
 173                 throw KeyError("Duplicate train address", lexical_cast(t.get_address()));
 174
 175         trains[t.get_address()] = &t;
 176         signal_train_added.emit(t);
 177 }
 178
 179 Train &Layout::get_train(unsigned addr) const
 180 {
 181         map<unsigned, Train *>::const_iterator i = trains.find(addr);
 182         if(i==trains.end())
 183                 throw KeyError("Unknown train", lexical_cast(addr));
 184         return *i->second;
 185 }
 186
 187 void Layout::remove_train(Train &t)
 188 {
 189         if(trains.erase(t.get_address()))
 190                 signal_train_removed.emit(t);
 191 }
 192
 193 void Layout::add_vehicle(Vehicle &v)
 194 {
 195         if(vehicles.insert(&v).second)
 196                 signal_vehicle_added.emit(v);
 197 }
 198
 199 void Layout::remove_vehicle(Vehicle &v)
 200 {
 201         if(vehicles.erase(&v))
 202                 signal_vehicle_removed.emit(v);
 203 }
 204
 205 void Layout::tick()
 206 {
 207         if(driver)
 208                 driver->tick();
 209
 210         Time::TimeStamp t = Time::now();
 211         Time::TimeDelta dt;
 212         if(last_tick)
 213                 dt = t-last_tick;
 214         last_tick = t;
 215
 216         for(map<unsigned, Train *>::iterator i=trains.begin(); i!=trains.end(); ++i)
 217                 i->second->tick(t, dt);
 218 }
 219
 220 void Layout::emergency(const string &msg)
 221 {
 222         if(driver)
 223                 driver->halt(true);
 224         IO::print("Emergency: %s\n", msg);
 225         signal_emergency.emit(msg);
 226 }
 227
 228 void Layout::save(const string &fn)
 229 {
 230         IO::BufferedFile out(fn, IO::M_WRITE);
 231         DataFile::Writer writer(out);
 232
 233         if(!base.empty())
 234                 writer.write((DataFile::Statement("base"), base));
 235
 236         for(set<Track *>::iterator i=tracks.begin(); i!=tracks.end(); ++i)
 237         {
 238                 DataFile::Statement st("track");
 239                 st.append((*i)->get_type().get_article_number());
 240                 (*i)->save(st.sub);
 241                 writer.write(st);
 242         }
 243
 244         for(set<Route *>::iterator i=routes.begin(); i!=routes.end(); ++i)
 245         {
 246                 if((*i)->is_temporary())
 247                         continue;
 248
 249                 DataFile::Statement st("route");
 250                 (*i)->save(st.sub);
 251                 writer.write(st);
 252         }
 253 }
 254
 255 void Layout::save_trains(const string &fn)
 256 {
 257         IO::BufferedFile out(fn, IO::M_WRITE);
 258         DataFile::Writer writer(out);
 259
 260         for(map<unsigned, Train *>::const_iterator i=trains.begin(); i!=trains.end(); ++i)
 261         {
 262                 DataFile::Statement st("train");
 263                 st.append(i->second->get_locomotive_type().get_article_number());
 264                 st.append(i->second->get_address());
 265                 i->second->save(st.sub);
 266                 writer.write(st);
 267         }
 268 }
 269
 270 void Layout::sensor_event(unsigned addr, bool state)
 271 {
 272         if(state)
 273         {
 274                 for(set<Block *>::iterator i=blocks.begin(); i!=blocks.end(); ++i)
 275                         if((*i)->get_sensor_id()==addr)
 276                         {
 277                                 if(!(*i)->get_train())
 278                                         emergency(format("Unreserved sensor %d triggered", addr));
 279                                 break;
 280                         }
 281         }
 282 }
 283
 284
 285 Layout::Loader::Loader(Layout &l):
 286         DataFile::BasicLoader<Layout>(l),
 287         new_tracks(false)
 288 {
 289         add("base",  &Layout::base);
 290         add("route", static_cast<void (Loader::*)()>(&Loader::route));
 291         add("route", static_cast<void (Loader::*)(const string &)>(&Loader::route));
 292         add("track", &Loader::track);
 293         add("train", &Loader::train);
 294 }
 295
 296 void Layout::Loader::finish()
 297 {
 298         for(set<Track *>::iterator i=obj.tracks.begin(); i!=obj.tracks.end(); ++i)
 299                 (*i)->check_slope();
 300 }
 301
 302 void Layout::Loader::route()
 303 {
 304         Route *rte = new Route(obj);
 305         load_sub(*rte);
 306 }
 307
 308 void Layout::Loader::route(const string &n)
 309 {
 310         Route *rte = new Route(obj);
 311         rte->set_name(n);
 312         load_sub(*rte);
 313 }
 314
 315 void Layout::Loader::track(unsigned art_nr)
 316 {
 317         Track *trk = new Track(obj, obj.catalogue.get_track(art_nr));
 318         load_sub(*trk);
 319         new_tracks = true;
 320         for(set<Track *>::iterator i=obj.tracks.begin(); i!=obj.tracks.end(); ++i)
 321                 if(*i!=trk)
 322                         trk->snap_to(**i, true);
 323 }
 324
 325 void Layout::Loader::train(unsigned art_nr, unsigned addr)
 326 {
 327         Train *trn = new Train(obj, obj.catalogue.get_vehicle(art_nr), addr);
 328         load_sub(*trn);
 329 }
 330
 331 } // namespace Marklin