static const long long BASE_DELAY = 1000 / GAMELOOP_FPS;

void GameThread::_wait()
{
    std::chrono::steady_clock::time_point curTime = std::chrono::steady_clock::now();
    long long delay = BASE_DELAY - std::chrono::duration_cast<std::chrono::milliseconds>(curTime - _lastRunTime).count();
    if (delay > 0)
        QThread::msleep(delay);
}