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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