Question

I am attempting to make a simple game using C++ and OpenGL and I haven t been able to find any good tutorials on creating a simple tick or a timer system for a game i also would like to use an little external librarys as possible. Any help is appreciated. I am using Win32 and C::B IDE...MingW complier.

Answer 1

查阅网页:

http://wiki.allegro.cc/index.php? entitled=timers#How_to_use_them.3F

http://www.koonsolo.com/news/dewitters-gameloop/

或许可以在上获得更多的答复。 Hordev Stackchange 。

Answer 2

您:

void glutTimerFunc( unsigned int msecs, void (*func)(int value), value);

Answer 3

查阅 boost:date_time。

Answer 4

You could try QueryPerformanceCounter and QueryPerformanceFrequency if you want it ultra-precise.

Edit: I think the docs are pretty sufficient, you get the count of timer ticks and the timer s frequency. But anyway, here s an example:

没有经过测试,但应当给你这个想法。

int main(int argc, char *argv[])
{
  LARGE_INTEGER freq;
  LARGE_INTEGER start;
  LARGE_INTEGER current;
  double t;

  QueryPerformanceFrequency(&freq); // initialize frequency
  QueryPerformanceCounter(&start); // initialize start time

  while (!terminated) // game main loop
  {
    QueryPerformanceCounter(&current); // get current time
    t = (end.QuadPart - start.QuadPart) / (double)freq.QuadPart; // transform to seconds

    /* do stuff here with t */
  }

  return 0;
}

您也可以使用任何64个轨道分类类型,而不是<代码>LARGE_INTEERT/code>,但这正是它们打算这样做的。

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