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pavol

Fri Jan 20, 2006 11:03 am


pictures and cls

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is there any way to cls everything on the screen besides something like a background pic. i'm starting on a game, i draw a background pic and the user controls this guy on it. the only problem is that this makes the game very very slow cuz i have to redraw the background pic every time. so is there any way to cls, keep the background, and redraw the user guy in the new position? :wall: 
any help appreciated


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sylvester-27

Fri Jan 20, 2006 11:17 am



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could u post the code please. It'll make it easier.


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do_pete

Fri Jan 20, 2006 11:19 am



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Well according to the manual picXor should do the trick ... but it doesn't so I don't think you can do it.


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Albrecd

Fri Jan 20, 2006 11:38 am



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How is picXor supposed to do that? I never could make any sence out of it...


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do_pete

Fri Jan 20, 2006 11:45 am



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There is something about that in [Turing Tutorials]


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Prognosis

Sat Jan 21, 2006 11:20 pm



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in your loop, whenever you want to do a cls, just draw all of the graphics over again for your backround.


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codemage

Mon Jan 23, 2006 1:22 pm



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Noo... use Xor.  Wonderful Xor.

Draw OVER your on-screen objects with Xor.
This erases them, but leaves the background layer.
You can then re-draw the objects in their new positions.

Shake-rinse-repeat.