Subject: Re: About SHIPS.ASM (was: Re: [stella] Jim's heart From: Piero Cavina <p.cavina@xxxxxxxxxxxxx> Date: Wed, 17 Jun 1998 12:28:52 +0200 |
At 11.51 17/06/98 +0200, kurt.woloch@xxxxxxxxx wrote: >I thought of another thing here. Since the ship body can end at kernal:, >line2, line3, OR line4, >I'd have to offer a possibility in each scanline to exit this kernel >part. And then, how do I determine whether to leave or not? Good question. :) > Still, I >could hide those things BEHIND writing all registers, after everything's >done... But that would waste a lot of cycles... > maybe it's even impossible to let the ship sink only one >scanline at a time this way? Maybe not. Try to break the kernel that does the ship body in two parts: one for the upper part, made only of groups of four lines, where you won't have to care of "exit points", and one for the scrolling-end, where you'll draw 1,2 or 3 lines only, according to the sink level. Maybe you won't have time for sprites in these last lines, but the various elements might be arranged so that this is not a big problem.. hmmmmmmmmmmmmmmmm........... Ciao, P. -- Archives (includes files) at http://www.biglist.com/lists/stella/archives/ Unsub & more at http://www.biglist.com/lists/stella/stella.html
Current Thread |
---|
|
<- Previous | Index | Next -> |
---|---|---|
Re: About SHIPS.ASM (was: Re: [stel, kurt.woloch | Thread | Re: About SHIPS.ASM (was: Re: [stel, Piero Cavina |
Antwort auf: [stella] Ship demo, kurt.woloch | Date | [stella] Cybermorph 2600?!?, Songbird |
Month |