source/libmarklin/timetable.cpp

   1 /* $Id$
   2
   3 This file is part of the MSP Märklin suite
   4 Copyright © 2010  Mikkosoft Productions, Mikko Rasa
   5 Distributed under the GPL
   6 */
   7
   8 #include <msp/strings/formatter.h>
   9 #include <msp/time/units.h>
  10 #include "block.h"
  11 #include "catalogue.h"
  12 #include "driver.h"
  13 #include "layout.h"
  14 #include "timetable.h"
  15 #include "train.h"
  16
  17 using namespace std;
  18 using namespace Msp;
  19
  20 namespace Marklin {
  21
  22 Timetable::Timetable(Train &t):
  23         train(t),
  24         enabled(false),
  25         current_row(0),
  26         executing(true),
  27         pending_block(0),
  28         pending_train(0)
  29 {
  30         train.signal_arrived.connect(sigc::mem_fun(this, &Timetable::train_arrived));
  31         train.get_layout().get_driver().signal_sensor.connect(sigc::mem_fun(this, &Timetable::sensor_event));
  32 }
  33
  34 void Timetable::set_enabled(bool e)
  35 {
  36         enabled = e;
  37 }
  38
  39 void Timetable::reset()
  40 {
  41         current_row = 0;
  42         wait_timeout = Time::TimeStamp();
  43         pending_block = 0;
  44         executing = true;
  45 }
  46
  47 void Timetable::clear()
  48 {
  49         rows.clear();
  50         reset();
  51 }
  52
  53 void Timetable::append(const Row &row)
  54 {
  55         rows.push_back(row);
  56 }
  57
  58 void Timetable::insert(unsigned i, const Row &row)
  59 {
  60         if(i>rows.size())
  61                 throw InvalidParameterValue("Insert position out of range");
  62
  63         rows.insert(rows.begin()+i, row);
  64         if(i<=current_row)
  65                 ++current_row;
  66 }
  67
  68 const Timetable::Row &Timetable::get_row(unsigned i) const
  69 {
  70         if(i>=rows.size())
  71                 throw InvalidParameterValue("Row index out of range");
  72         return rows[i];
  73 }
  74
  75 void Timetable::tick(const Time::TimeStamp &t)
  76 {
  77         if(rows.empty() || !enabled)
  78                 return;
  79
  80         if(wait_timeout && t>=wait_timeout)
  81         {
  82                 wait_timeout = Time::TimeStamp();
  83                 current_row = (current_row+1)%rows.size();
  84                 executing = true;
  85         }
  86
  87         if(executing)
  88         {
  89                 Row &row = rows[current_row];
  90                 switch(row.type)
  91                 {
  92                 case GOTO:
  93                         train.go_to(**parse_location(row.get_param<string>(0)).get_tracks().begin());
  94                         break;
  95                 case TRAVEL:
  96                         pending_block = &parse_location(row.get_param<string>(0));
  97                         pending_train = &train;
  98                         executing = false;
  99                         break;
 100                 case WAIT_TIME:
 101                         wait_timeout = t+row.get_param<unsigned>(0)*Time::sec;
 102                         executing = false;
 103                         break;
 104                 case WAIT_TRAIN:
 105                         pending_train = &train.get_layout().get_train(row.get_param<unsigned>(0));
 106                         pending_block = &parse_location(row.get_param<string>(1));
 107                         executing = false;
 108                         break;
 109                 case ARRIVE:
 110                         executing = false;
 111                         break;
 112                 case SPEED:
 113                         train.set_control("speed", row.get_param<unsigned>(0)/3.6*train.get_layout().get_catalogue().get_scale());
 114                         break;
 115                 case REVERSE:
 116                         train.set_control("reverse", !train.get_control("reverse"));
 117                         break;
 118                 case ROUTE:
 119                         train.set_route(&train.get_layout().get_route(row.get_param<string>(0)));
 120                         break;
 121                 }
 122
 123                 if(executing)
 124                         current_row = (current_row+1)%rows.size();
 125         }
 126 }
 127
 128 void Timetable::save(list<DataFile::Statement> &st) const
 129 {
 130         for(vector<Row>::const_iterator i=rows.begin(); i!=rows.end(); ++i)
 131                 st.push_back(i->save());
 132 }
 133
 134 Block &Timetable::parse_location(const string &loc)
 135 {
 136         if(!loc.compare(0, 7, "sensor "))
 137                 return train.get_layout().get_block(lexical_cast<unsigned>(loc.substr(7))|0x1000);
 138         throw Exception("Named blocks are not supported yet");
 139 }
 140
 141 void Timetable::sensor_event(unsigned addr, bool state)
 142 {
 143         if(pending_block && pending_block->get_train()==pending_train && addr==pending_block->get_sensor_id() && state)
 144         {
 145                 pending_block = 0;
 146                 current_row = (current_row+1)%rows.size();
 147                 executing = true;
 148         }
 149 }
 150
 151 void Timetable::train_arrived()
 152 {
 153         Row &row = rows[current_row];
 154         if(row.type==ARRIVE)
 155         {
 156                 current_row = (current_row+1)%rows.size();
 157                 executing = true;
 158         }
 159 }
 160
 161
 162 Timetable::Row::Row(RowType t):
 163         type(t)
 164 { }
 165
 166 template<typename T>
 167 Timetable::Row::Row(RowType t, const T &p):
 168         type(t)
 169 {
 170         params.push_back(p);
 171 }
 172
 173 template<typename T>
 174 const T &Timetable::Row::get_param(unsigned i) const
 175 {
 176         if(i>=params.size())
 177                 throw InvalidParameterValue("Parameter index out of range");
 178         return params[i].value<T>();
 179 }
 180
 181 string Timetable::Row::str() const
 182 {
 183         switch(type)
 184         {
 185         case GOTO:
 186                 return "set route to "+get_param<string>(0);
 187         case TRAVEL:
 188                 return "travel to "+get_param<string>(0);
 189         case WAIT_TIME:
 190                 return format("wait for %d seconds", get_param<unsigned>(0));
 191         case WAIT_TRAIN:
 192                 return format("wait for train %d at %s", get_param<unsigned>(0), get_param<string>(1));
 193         case ARRIVE:
 194                 return "travel until arrival";
 195         case SPEED:
 196                 return format("set speed %d km/h", get_param<unsigned>(0));
 197         case REVERSE:
 198                 return "reverse";
 199         case ROUTE:
 200                 return "set route "+get_param<string>(0);
 201         default:
 202                 return "invalid row";
 203         }
 204 }
 205
 206 DataFile::Statement Timetable::Row::save() const
 207 {
 208         switch(type)
 209         {
 210         case GOTO:
 211                 return DataFile::Statement("goto"), get_param<string>(0);
 212         case TRAVEL:
 213                 return DataFile::Statement("travel"), get_param<string>(0);
 214         case WAIT_TIME:
 215                 return DataFile::Statement("wait"), get_param<unsigned>(0);
 216         case WAIT_TRAIN:
 217                 return DataFile::Statement("wait_train"), get_param<unsigned>(0), get_param<string>(1);
 218         case ARRIVE:
 219                 return DataFile::Statement("arrive");
 220         case SPEED:
 221                 return DataFile::Statement("speed"), get_param<unsigned>(0);
 222         case REVERSE:
 223                 return DataFile::Statement("reverse");
 224         case ROUTE:
 225                 return DataFile::Statement("route"), get_param<string>(0);
 226         default:
 227                 return DataFile::Statement();
 228         }
 229 }
 230
 231 Timetable::Row Timetable::Row::parse(const string &s)
 232 {
 233         if(!s.compare(0, 7, "travel "))
 234         {
 235                 if(!s.compare(7, 3, "to "))
 236                         return Row(TRAVEL, s.substr(10));
 237                 else if(!s.compare(7, string::npos, "until arrival"))
 238                         return Row(ARRIVE);
 239         }
 240         else if(!s.compare(0, 9, "wait for "))
 241         {
 242                 if(isdigit(s[9]))
 243                 {
 244                         unsigned nondigit = 10;
 245                         while(nondigit<s.size() && isdigit(s[nondigit]))
 246                                 ++nondigit;
 247                         return Row(WAIT_TIME, lexical_cast<unsigned>(s.substr(9, nondigit-9)));
 248                 }
 249                 else if(!s.compare(9, 6, "train "))
 250                 {
 251                         string::size_type at = s.find(" at ", 15);
 252                         if(at!=string::npos)
 253                         {
 254                                 Row row(WAIT_TRAIN, lexical_cast<unsigned>(s.substr(15, at-15)));
 255                                 row.params.push_back(s.substr(at+4));
 256                                 return row;
 257                         }
 258                 }
 259         }
 260         else if(!s.compare(0, 10, "set speed "))
 261         {
 262                 unsigned nondigit = 11;
 263                 while(nondigit<s.size() && (isdigit(s[nondigit]) || s[nondigit]=='-'))
 264                         ++nondigit;
 265                 return Row(SPEED, lexical_cast<unsigned>(s.substr(10, nondigit-10)));
 266         }
 267         else if(s=="reverse")
 268                 return Row(REVERSE);
 269         else if(!s.compare(0, 10, "set route "))
 270         {
 271                 if(!s.compare(10, 3, "to "))
 272                         return Row(GOTO, s.substr(13));
 273                 return Row(ROUTE, s.substr(10));
 274         }
 275
 276         throw InvalidParameterValue("Invalid row");
 277 }
 278
 279
 280 Timetable::Loader::Loader(Timetable &tt):
 281         DataFile::ObjectLoader<Timetable>(tt)
 282 {
 283         add("arrive",  &Loader::arrive);
 284         add("goto",    &Loader::go_to);
 285         add("route",   &Loader::route);
 286         add("speed",   &Loader::speed);
 287         add("reverse", &Loader::reverse);
 288         add("travel",  &Loader::travel);
 289         add("wait",    &Loader::wait);
 290         add("wait_train", &Loader::wait_train);
 291 }
 292
 293 void Timetable::Loader::arrive()
 294 {
 295         obj.rows.push_back(Row(ARRIVE));
 296 }
 297
 298 void Timetable::Loader::go_to(const string &t)
 299 {
 300         obj.rows.push_back(Row(GOTO, t));
 301 }
 302
 303 void Timetable::Loader::route(const string &r)
 304 {
 305         obj.rows.push_back(Row(ROUTE, r));
 306 }
 307
 308 void Timetable::Loader::reverse()
 309 {
 310         obj.rows.push_back(Row(REVERSE));
 311 }
 312
 313 void Timetable::Loader::speed(unsigned s)
 314 {
 315         obj.rows.push_back(Row(SPEED, s));
 316 }
 317
 318 void Timetable::Loader::travel(const string &t)
 319 {
 320         obj.rows.push_back(Row(TRAVEL, t));
 321 }
 322
 323 void Timetable::Loader::wait(unsigned t)
 324 {
 325         obj.rows.push_back(Row(WAIT_TIME, t));
 326 }
 327
 328 void Timetable::Loader::wait_train(unsigned t, const string &b)
 329 {
 330         Row row(WAIT_TRAIN, t);
 331         row.params.push_back(b);
 332         obj.rows.push_back(row);
 333 }
 334
 335 } // namespace Marklin