source/libr2c2/trainstatus.cpp

   1 #include <msp/strings/format.h>
   2 #include "catalogue.h"
   3 #include "layout.h"
   4 #include "train.h"
   5 #include "trainstatus.h"
   6 #include "vehicle.h"
   7
   8 using namespace Msp;
   9
  10 namespace R2C2 {
  11
  12 TrainStatus::TrainStatus(Train &t):
  13         TrainAI(t),
  14         speed(-2)
  15 {
  16         check();
  17 }
  18
  19 void TrainStatus::tick(const Time::TimeDelta &)
  20 {
  21         check();
  22 }
  23
  24 void TrainStatus::check()
  25 {
  26         float scale = train.get_layout().get_catalogue().get_scale();
  27         int s = static_cast<int>(train.get_quantized_speed()*3.6/scale+0.5);
  28         if(s==0 && train.get_block_allocator().is_active())
  29                 s = -1;
  30
  31         if(s!=speed)
  32         {
  33                 if(s>0)
  34                 {
  35                         status = format("Traveling %d kmh", s);
  36                         if(unsigned step = train.get_speed_step())
  37                                 status += format(" (%d)", step);
  38                 }
  39                 else if(s==-1)
  40                         status = "Waiting";
  41                 else if(!train.get_vehicle(0).is_placed())
  42                         status = "Unplaced";
  43                 else
  44                         status = "Stopped";
  45
  46                 speed = s;
  47
  48                 signal_changed.emit(status);
  49                 signal_event.emit(Message("status-changed", status));
  50         }
  51 }
  52
  53 } // namespace R2C2