Subject: RE: [stella] Ms. Pac Man, Mr. Do, striped playfields, and one-line kernels From: Glenn Saunders <mos6507@xxxxxxxxxxx> Date: Thu, 02 Sep 2004 18:42:38 -0700 |
> I was able to get around using skipdraw by > page-aligning my sprites and > padding the top (remember, it's stored upside down) > with zeroes to fill up > the page.
That's what I also did in 'Incoming'. Wastes a lot of ROM, but can't be beat speed-wise.
All said and done, by doing that and unrolling the kernel such that each iteration draws 8 lines, I was able to do a full-width asymmetrical playfield, an X-position-independent player and ball, an X-position-dependent player (right side of the screen only), and also change background and playfield colors every 8 lines. Pretty tight code though...
Ben
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