RE: A89: ti89 asm greyscale sprites

To: assembly-89@lists.ticalc.org
Subject: RE: A89: ti89 asm greyscale sprites
From: zach <zach@operamail.com>
Date: Wed, 28 Jul 1999 17:57:01 -0400
Delivered-To: assembly-89-outgoing@towerguard.unix.edu.sollentuna.se
Delivered-To: assembly-89@lists.ticalc.org
Reply-To: assembly-89@lists.ticalc.org


>===== Original Message From assembly-89@lists.ticalc.org =====
>I'm putting a greyscale sprite with a background.  I need to know how toget 
it to delete the sprite when you move, so you don't have a trail of sprites 
behind you.  I need it to do that and not delete the background.  Could some 
one explain to me how to do this? or tell me
>where a good expamle is?

If http://ti89.acz.org is running, I think they have something about it.

What you should do is edit your putsprite routine to save the background (the 
memory it will draw to) to a variable.  Then, when you move the sprite, have 
it draw that background to where the sprite is and then draw the sprite to the 
new location.  I think that would work.

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