I traced through the execution of the title page using PCAE's debugger
and it's definitly using the players for ET's picture.
Dan
-----Original Message-----
From: owner-stella@xxxxxxxxxxx [mailto:owner-stella@xxxxxxxxxxx] On
Behalf Of Paul Slocum
Sent: Tuesday, July 09, 2002 1:05 AM
To: stella@xxxxxxxxxxx
Subject: Re: [stella] ET is Pretty
>What I am curious about is, how do you guys think howie did it?
>Playfield, missile, player, etc???
It's probably player graphics each set to "3 copy" mode and staggered.
You
can get a 48 pixel wide bitmap this way. You set it up like this:
(where
the 0's are player0 and the 1's are player1)
00000000111111110000000011111111100000000111111111
>Here's my guess (reminder: 'tis the guess of a newbie extraordinaire)
>It seems to me that you could use the playfield graphics, create
>nothing but a solid block for the playfield data, then by enabling and
>disabling the PF0, PF1, PF2 reg's you could literally "chisle" away at
>the block and make something nice. Of course this would take excellent
>cycle counting and whatnot to know when to enable and disable the PF
>registers as the beam moved across the screen.
I did something similar to what you're talking about on the Marble Craze
title screen:
http://www.mindspring.com/~paul-slocum/images/title.gif
-Paul
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