From:	"Damian Yerrick" <web DOT poison AT pineight DOT 8m DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Game Speed
Date:	Sun, 17 Oct 1999 23:36:06 -0500
Organization:	Rose-Hulman Institute of Technology
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Andrew R. Gillett <arg AT whangomatic DOT freeserve DOT co DOT uk> wrote in message
news:MPG DOT 1273deccf87c634798b3ff AT news DOT freeserve DOT net...
> In comp.os.msdos.djgpp, Snowman wrote:
> > Hello everybody
> >
> > I programmed a simple game in C.
> > (I used DJGPP and ALLEGRO)
> > But the game runs on different Computers with
> > a different speed.
> > Is it possible, that the game runs on all
> > Computers with a similar speed ?
> > Please Help me immidiately .
>
> Here is a brief outline of what you need to do:
>
> - Create an interrupt which is called every 60th of a second (or whatever
> you want the frame rate to be).

Creating an interrupt will use up one of Allegro's interrupt
slots. I use one of Allegro's timer handlers whose frequency
is 70 Hz. It's called retrace_count

> while (not_finished)
> {
> if (timer_value)
> {
> // Calculations go here
>
> if (--timer_value <= 0)
> {
> timer_value = 0;
>
> // Draw the graphics here
> }
> }
> }

--
Damian Yerrick
CM 398, Rose-Hulman Institute of Technology
5500 Wabash Ave
Terre Haute, IN 47803
http://come.to/yerrick

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