source/libr2c2/trainstatus.cpp

   1 /* $Id$
   2
   3 This file is part of R²C²
   4 Copyright © 2011  Mikkosoft Productions, Mikko Rasa
   5 Distributed under the GPL
   6 */
   7
   8 #include <msp/strings/formatter.h>
   9 #include "catalogue.h"
  10 #include "layout.h"
  11 #include "train.h"
  12 #include "trainstatus.h"
  13 #include "vehicle.h"
  14
  15 using namespace Msp;
  16
  17 #include <msp/io/print.h>
  18
  19 namespace R2C2 {
  20
  21 TrainStatus::TrainStatus(Train &t):
  22         TrainAI(t),
  23         speed(-2)
  24 {
  25         check();
  26 }
  27
  28 void TrainStatus::tick(const Time::TimeStamp &, const Time::TimeDelta &)
  29 {
  30         check();
  31 }
  32
  33 void TrainStatus::check()
  34 {
  35         float scale = train.get_layout().get_catalogue().get_scale();
  36         int s = static_cast<int>(train.get_quantized_speed()*3.6/scale+0.5);
  37         if(s==0 && train.is_active())
  38                 s = -1;
  39
  40         if(s!=speed)
  41         {
  42                 if(s>0)
  43                 {
  44                         status = format("Traveling %d kmh", s);
  45                         if(unsigned step = train.get_speed_step())
  46                                 status += format(" (%d)", step);
  47                 }
  48                 else if(s==-1)
  49                         status = "Waiting";
  50                 else if(!train.get_vehicle(0).get_track())
  51                         status = "Unplaced";
  52                 else
  53                         status = "Stopped";
  54
  55                 speed = s;
  56
  57                 signal_changed.emit(status);
  58                 signal_event.emit(Message("status-changed", status));
  59         }
  60 }
  61
  62 } // namespace R2C2