timer_window.cpp

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/*
 * This file is part of OpenTTD.
 * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
 * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
 */
 
#include "../stdafx.h"
#include "timer.h"
#include "timer_window.h"
 
#include "../safeguards.h"
 
template<>
void IntervalTimer<TimerWindow>::Elapsed(TimerWindow::TElapsed delta)
{
  if (this->period == std::chrono::milliseconds::zero()) return;
 
  this->storage.elapsed += delta;
 
  uint count = 0;
  while (this->storage.elapsed >= this->period) {
    this->storage.elapsed -= this->period;
    count++;
  }
 
  if (count > 0) {
    this->callback(count);
  }
}
 
template<>
void TimeoutTimer<TimerWindow>::Elapsed(TimerWindow::TElapsed delta)
{
  if (this->fired) return;
  if (this->period == std::chrono::milliseconds::zero()) return;
 
  this->storage.elapsed += delta;
 
  if (this->storage.elapsed >= this->period) {
    this->callback();
    this->fired = true;
  }
}
 
template<>
bool TimerManager<TimerWindow>::Elapsed(TimerWindow::TElapsed delta)
{
  /* Make a temporary copy of the timers, as a timer's callback might add/remove other timers. */
  auto timers = TimerManager<TimerWindow>::GetTimers();
 
  for (auto timer : timers) {
    timer->Elapsed(delta);
  }
 
  return true;
}
 
#ifdef WITH_ASSERT
template<>
void TimerManager<TimerWindow>::Validate(TimerWindow::TPeriod)
{
}
#endif /* WITH_ASSERT */