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clipped line drawing routine
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ben_g


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Joined: 22 Nov 2011
Posts: 77
Posted: 27 May 2012 04:44:49 pm    Post subject: clipped line drawing routine
Hi,

Does anyone know a good, optimized clipped line drawing routine? I'm sure there are a few around, but they are really hard to find. Also, it would be best if it supports 2byte coordinates (signed).
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KermMartian


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Joined: 14 Mar 2005
Posts: 55732
Location: Earth, Sol, Milky Way
Posted: 29 May 2012 11:06:12 am    Post subject:
I have a couple that I've written, but I'm not too confident on the speed or accuracy of the routines. I am positive that BenRyves has an excellent one from his Nostromo raycaster.
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ben_g


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Joined: 22 Nov 2011
Posts: 77
Posted: 29 May 2012 11:51:30 am    Post subject:
EDIT: benryves gave me a clipping routine, and now it works.
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KermMartian


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Joined: 14 Mar 2005
Posts: 55732
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Posted: 29 May 2012 02:39:26 pm    Post subject:
ben_g wrote:
EDIT: benryves gave me a clipping routine, and now it works.
Great, that's good to hear. If you happen to find out that he's willing to have other people be able to use that routine, perhaps he or you could share it in our z80 Useful Routines topic. Smile
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benryves


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Joined: 12 Aug 2008
Posts: 1357
Location: London, United Kingdom
Posted: 29 May 2012 04:40:34 pm    Post subject:
I didn't write the routine, qarnos did and let me use it in BBC BASIC. I guess you would need to ask him.
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Xeda112358


Power User


Joined: 09 Nov 2010
Posts: 345
Posted: 06 Jun 2012 07:26:50 pm    Post subject:
Hmm, I actually just finished one yesterday that I would be willing to share. It is by no means the most optimised piece I have made, but it allows drawing with a given pattern and has full sprite clipping. I also used it for raycasting XD I will be posting about it soon in another topic with screenies Smile

EDIT: http://www.cemetech.net/forum/viewtopic.php?p=184650#184650

Sorry, my internet was really buggy, so I couldn't post it until today.
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