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 {
  29         train.signal_arrived.connect(sigc::mem_fun(this, &Timetable::train_arrived));
  30         train.get_layout().get_driver().signal_sensor.connect(sigc::mem_fun(this, &Timetable::sensor_event));
  31 }
  32
  33 void Timetable::set_enabled(bool e)
  34 {
  35         enabled = e;
  36 }
  37
  38 void Timetable::reset()
  39 {
  40         current_row = 0;
  41         wait_timeout = Time::TimeStamp();
  42         pending_block = 0;
  43         executing = true;
  44 }
  45
  46 void Timetable::clear()
  47 {
  48         rows.clear();
  49         reset();
  50 }
  51
  52 void Timetable::append(const Row &row)
  53 {
  54         rows.push_back(row);
  55 }
  56
  57 void Timetable::insert(unsigned i, const Row &row)
  58 {
  59         if(i>rows.size())
  60                 throw InvalidParameterValue("Insert position out of range");
  61
  62         rows.insert(rows.begin()+i, row);
  63         if(i<=current_row)
  64                 ++current_row;
  65 }
  66
  67 const Timetable::Row &Timetable::get_row(unsigned i) const
  68 {
  69         if(i>=rows.size())
  70                 throw InvalidParameterValue("Row index out of range");
  71         return rows[i];
  72 }
  73
  74 void Timetable::tick(const Time::TimeStamp &t)
  75 {
  76         if(rows.empty() || !enabled)
  77                 return;
  78
  79         if(wait_timeout && t>=wait_timeout)
  80         {
  81                 wait_timeout = Time::TimeStamp();
  82                 current_row = (current_row+1)%rows.size();
  83                 executing = true;
  84         }
  85
  86         while(executing)
  87         {
  88                 Row &row = rows[current_row];
  89                 switch(row.type)
  90                 {
  91                 case GOTO:
  92                         train.go_to(**parse_location(row.strparam).get_tracks().begin());
  93                         break;
  94                 case TRAVEL:
  95                         pending_block = &parse_location(row.strparam);
  96                         executing = false;
  97                         break;
  98                 case WAIT:
  99                         wait_timeout = t+row.intparam*Time::sec;
 100                         executing = false;
 101                         break;
 102                 case ARRIVE:
 103                         executing = false;
 104                         break;
 105                 case SPEED:
 106                         train.set_control("speed", row.intparam/3.6*train.get_layout().get_catalogue().get_scale());
 107                         break;
 108                 case ROUTE:
 109                         train.set_route(&train.get_layout().get_route(row.strparam));
 110                         break;
 111                 }
 112
 113                 if(executing)
 114                         current_row = (current_row+1)%rows.size();
 115         }
 116 }
 117
 118 void Timetable::save(list<DataFile::Statement> &st) const
 119 {
 120         for(vector<Row>::const_iterator i=rows.begin(); i!=rows.end(); ++i)
 121         {
 122                 switch(i->type)
 123                 {
 124                 case GOTO:
 125                         st.push_back((DataFile::Statement("goto"), i->strparam));
 126                         break;
 127                 case TRAVEL:
 128                         st.push_back((DataFile::Statement("travel"), i->strparam));
 129                         break;
 130                 case WAIT:
 131                         st.push_back((DataFile::Statement("wait"), i->intparam));
 132                         break;
 133                 case ARRIVE:
 134                         st.push_back(DataFile::Statement("arrive"));
 135                         break;
 136                 case SPEED:
 137                         st.push_back((DataFile::Statement("speed"), i->intparam));
 138                         break;
 139                 case ROUTE:
 140                         st.push_back((DataFile::Statement("route"), i->strparam));
 141                         break;
 142                 }
 143         }
 144 }
 145
 146 Block &Timetable::parse_location(const string &loc)
 147 {
 148         if(!loc.compare(0, 7, "sensor "))
 149                 return train.get_layout().get_block(lexical_cast<unsigned>(loc.substr(7))|0x1000);
 150         throw Exception("Named blocks are not supported yet");
 151 }
 152
 153 void Timetable::sensor_event(unsigned addr, bool state)
 154 {
 155         if(pending_block && pending_block->get_train()==&train && addr==pending_block->get_sensor_id() && state)
 156         {
 157                 pending_block = 0;
 158                 current_row = (current_row+1)%rows.size();
 159                 executing = true;
 160         }
 161 }
 162
 163 void Timetable::train_arrived()
 164 {
 165         Row &row = rows[current_row];
 166         if(row.type==ARRIVE)
 167         {
 168                 current_row = (current_row+1)%rows.size();
 169                 executing = true;
 170         }
 171 }
 172
 173
 174 Timetable::Row::Row(RowType t, int p):
 175         type(t),
 176         intparam(p)
 177 { }
 178
 179 Timetable::Row::Row(RowType t, const string &p):
 180         type(t),
 181         intparam(0),
 182         strparam(p)
 183 { }
 184
 185 string Timetable::Row::str() const
 186 {
 187         switch(type)
 188         {
 189         case GOTO:
 190                 return "go to "+strparam;
 191         case TRAVEL:
 192                 return "travel to "+strparam;
 193         case WAIT:
 194                 return format("wait for %d seconds", intparam);
 195         case ARRIVE:
 196                 return "wait for arrival";
 197         case SPEED:
 198                 return format("set speed %d km/h", intparam);
 199         case ROUTE:
 200                 return "set route "+strparam;
 201         default:
 202                 return "invalid row";
 203         }
 204 }
 205
 206 Timetable::Row Timetable::Row::parse(const string &s)
 207 {
 208         if(!s.compare(0, 6, "go to "))
 209                 return Row(GOTO, s.substr(6));
 210         else if(!s.compare(0, 10, "travel to "))
 211                 return Row(TRAVEL, s.substr(10));
 212         else if(!s.compare(0, 9, "wait for ") && isdigit(s[9]))
 213         {
 214                 unsigned nondigit = 10;
 215                 while(nondigit<s.size() && isdigit(s[nondigit]))
 216                         ++nondigit;
 217                 return Row(WAIT, lexical_cast<unsigned>(s.substr(9, nondigit-9)));
 218         }
 219         else if(s=="wait for arrival")
 220                 return Row(ARRIVE, 0);
 221         else if(!s.compare(0, 10, "set speed "))
 222         {
 223                 unsigned nondigit = 11;
 224                 while(nondigit<s.size() && (isdigit(s[nondigit]) || s[nondigit]=='-'))
 225                         ++nondigit;
 226                 return Row(SPEED, lexical_cast<int>(s.substr(10, nondigit-10)));
 227         }
 228         else if(!s.compare(0, 10, "set route "))
 229                 return Row(ROUTE, s.substr(10));
 230
 231         throw InvalidParameterValue("Invalid row");
 232 }
 233
 234
 235 Timetable::Loader::Loader(Timetable &tt):
 236         DataFile::ObjectLoader<Timetable>(tt)
 237 {
 238         add("arrive", &Loader::arrive);
 239         add("goto",   &Loader::go_to);
 240         add("route",  &Loader::route);
 241         add("speed",  &Loader::speed);
 242         add("travel", &Loader::travel);
 243         add("wait",   &Loader::wait);
 244 }
 245
 246 void Timetable::Loader::arrive()
 247 {
 248         obj.rows.push_back(Row(ARRIVE, 0));
 249 }
 250
 251 void Timetable::Loader::go_to(const string &t)
 252 {
 253         obj.rows.push_back(Row(GOTO, t));
 254 }
 255
 256 void Timetable::Loader::route(const string &r)
 257 {
 258         obj.rows.push_back(Row(ROUTE, r));
 259 }
 260
 261 void Timetable::Loader::speed(int s)
 262 {
 263         obj.rows.push_back(Row(SPEED, s));
 264 }
 265
 266 void Timetable::Loader::travel(const string &t)
 267 {
 268         obj.rows.push_back(Row(TRAVEL, t));
 269 }
 270
 271 void Timetable::Loader::wait(unsigned t)
 272 {
 273         obj.rows.push_back(Row(WAIT, t));
 274 }
 275
 276 } // namespace Marklin