#include "Timer.h"

Timer::Timer(std::chrono::milliseconds interval, bool cyclic) :
  m_start_time(clock_type::now()),
  m_interval(interval),
  m_running(false),
  m_cyclic(cyclic)
{
}

void Timer::start()
{
  m_running = true;
  m_start_time = clock_type::now();
}

void Timer::stop()
{
  m_running = false;
}

bool Timer::is_elapsed() const
{
  return m_start_time + m_interval < clock_type::now();
}

void Timer::update()
{
  if (m_running && is_elapsed()) {
    elapsed();
    if (m_cyclic) {
      start();
    } else {
      stop();
    }
  }
}