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2D All the way! / Jerky 2d

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DEANO
23
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Joined: 26th Aug 2002
Location: United States
Posted: 13th Feb 2005 07:37
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Is it just me or my computer? I've tried to write a simple 2d game and just the basic sliding sprites across the screen end up very jerky. If I increase the sync rate it's less noticable, but it still there. I searched all the 2d source I could find with the same results.


any help?
Deano

"When I examine myself and my methods of thought, I come to the conclusion that the gift of fantasy has meant more than my talent for absorbing positive knowledge."
-ALBERT EINSTEIN
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zy_to ge_ry
21
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Joined: 20th Nov 2004
Location: Canada
Posted: 13th Feb 2005 09:51
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You need to post your source code if you want any specific help
All I can say without seeing anything is that you should put as little as possible inside the actually game loop, in fact I find if you can set everything into separate functions it goes the fastest.

Another problem could be that when you run the game, you're not deleting all of your images/bitmaps/sprites/memblocks before you exit. It's especially important on slower computers to purge graphics memory before you exit your game to speed things up.
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DEANO
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Posted: 13th Feb 2005 10:03
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Quote: "Another problem could be that when you run the game, you're not deleting all of your images/bitmaps/sprites/memblocks before you exit. It's especially important on slower computers to purge graphics memory before you exit your game to speed things up. "


I thought purging your memory was automaticly done.

Deano

"When I examine myself and my methods of thought, I come to the conclusion that the gift of fantasy has meant more than my talent for absorbing positive knowledge."
-ALBERT EINSTEIN
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Lampton Worm
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Joined: 4th Sep 2002
Location: United Kingdom
Posted: 14th Feb 2005 02:31
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Hi,

I get that occasionally too, but when changing the project to run in full screen exclusive mode (assuming you're using DBP) it goes away, give that a whirl..?

Cheers
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DEANO
23
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Joined: 26th Aug 2002
Location: United States
Posted: 14th Feb 2005 04:50
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Thanks man that did it! That's funny I never had to do that before. Oh well.......must code on.


Deano

"When I examine myself and my methods of thought, I come to the conclusion that the gift of fantasy has meant more than my talent for absorbing positive knowledge."
-ALBERT EINSTEIN
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Lampton Worm
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Joined: 4th Sep 2002
Location: United Kingdom
Posted: 16th Feb 2005 17:03
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Cool, glad it worked

On the purging memory stuff, yes DBP does its own 'garbage collection', have a look at this post:

http://forum.thegamecreators.com/?m=forum_view&t=43347&b=1

Hope it helps,
Cheers.
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