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  Found this game loop tutorial if anyone needs it..  (Read 1719 times)
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Offline Kommi

Junior Devvie




All opinions will be lined up and shot!


« Posted 2003-12-14 22:12:36 »

http://jare.planet-d.net/docs/FixLoop.htm
I remeber myself having a problem creating a proper game loop for my app. I later followed Marcus Persson's WIKI tutorial about a discrete step timming loop. But I had problems trying to achieve consitent smooth frame rates and animation. I have since found this tip of the day example and am currently tweaking my implementation of it. I decided to post this here in case anyone having problems figuring out their game loop. If I have this running better then some of my other implementations I will right up a WIKI tutorial for it.

Kommi
Offline Markus_Persson

JGO Wizard


Medals: 16
Projects: 19


Mojang Specifications


« Reply #1 - Posted 2003-12-15 07:30:11 »

Ooh, reminds me of the thing I wrote and posted here a while back. =D

(and, yes, I came up with mine independently of that one. Smiley)

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Offline Java Cool Dude

Senior Devvie




Java forever


« Reply #2 - Posted 2003-12-15 07:34:47 »

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    currentTime = getTime();
    timePassed  = (currentTime - previousTime);

    timeSinceLastUpdate += timePassed;

    while( (timeSinceLastUpdate>10.0)){

      timeSinceLastUpdate-=10.0;
      updated = true;
     doLogic();
}
    if(updated){
      doStuff();
    }

    previousTime         = currentTime;

^ the one I use
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Offline Kommi

Junior Devvie




All opinions will be lined up and shot!


« Reply #3 - Posted 2003-12-15 13:46:33 »

Yeah Marcus you have good and interesting discrete step timming loop. But Ifounds that a bit complicated and odd at first. I have also experienced some problems with animation consistency. This is a fixed step timming loop which is a good begginer fast game loop.

Kommi
Offline Markus_Persson

JGO Wizard


Medals: 16
Projects: 19


Mojang Specifications


« Reply #4 - Posted 2003-12-15 16:04:48 »

They do basically the same thing, with the exception of that one explaining stuff better.

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Offline immudium

Junior Devvie




Gorram it!


« Reply #5 - Posted 2003-12-19 15:33:58 »

Thanks for sharing the link Kommi.  I'm always looking for new examples of animation loops.  I remember some time ago someone saying that a good animation loop could take months or years to develop and at the time I was just starting out and scoffed at the idea.  Well it's been several months later now and I find myself tweaking and adjusting and learning new techniques and realizing how true that statement was.  Anyway, my current algorithm probably marries different ideas from at least 4 distinct implementations so I'm always glad to see something new even if it's nothing more than different words to the same tune.  Smiley
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