source/libr2c2/clock.cpp

   1 #include "clock.h"
   2
   3 using namespace std;
   4 using namespace Msp;
   5
   6 namespace R2C2 {
   7
   8 Clock::Clock():
   9         rate(1),
  10         stopped(false)
  11 { }
  12
  13 void Clock::set_rate(float s)
  14 {
  15         rate = s;
  16 }
  17
  18 void Clock::set_current_time(const Time::TimeDelta &t)
  19 {
  20         current_time = t;
  21 }
  22
  23 void Clock::stop(bool s)
  24 {
  25         stopped = s;
  26 }
  27
  28 void Clock::tick(const Time::TimeDelta &dt)
  29 {
  30         if(stopped)
  31                 return;
  32
  33         unsigned prev_minute = current_time/Time::min;
  34         current_time += dt*rate;
  35         if(current_time>=Time::day)
  36                 current_time -= Time::day;
  37         unsigned minute = current_time/Time::min;
  38         if(minute!=prev_minute)
  39                 signal_minute.emit();
  40 }
  41
  42 void Clock::save(list<DataFile::Statement> &st) const
  43 {
  44         st.push_back((DataFile::Statement("rate"), rate));
  45         st.push_back((DataFile::Statement("time"), current_time.raw()));
  46 }
  47
  48
  49 Clock::Loader::Loader(Clock &c):
  50         DataFile::ObjectLoader<Clock>(c)
  51 {
  52         add("rate", &Clock::rate);
  53         add("time", &Loader::time);
  54 }
  55
  56 void Clock::Loader::time(Time::RawTime t)
  57 {
  58         obj.set_current_time(Time::TimeDelta(t));
  59 }
  60
  61 } // namespace R2C2