[stella] Re: Does River Raid End?

Subject: [stella] Re: Does River Raid End?
From: emooney@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx (Erik Mooney)
Date: Sat, 07 Nov 1998 00:43:36 GMT
>It would be awesome to rig some kind of game genie, like maybe to disable
>*all* collision detection, or at least infinite lives, and just play and
>play and play and see what happens. Maybe an emulator could do something
>like this easily??  (Of course if it was an impassibly thin river passage,
>infinite lives wouldn't happen-- much cooler to just let it scroll and
>scroll and scroll)
>
>Does anyone have the technical know how to do this?
>And are there any other atari games that generate this much stuff?
>Adventure is the only one that comes to mind, and even that's just moving
>a few objects around, right?

Awright, you guys got me intrigued.  Here's how to disable plane/playfield
collision detection.  Patch the binary with bytes 4C ED 12 at location 2E7,
and bytes 4C 68 14 at location 462.  In DOS, it'd look like this:
debug riveraid.bin
-e 3E7 4C ED 12
-e 562 4C 68 14
-w
-q

I haven't figured out player-player collisions yet, but that wouldn't quite
work, cause it'd disable player-fuel tank collisions, which are required to
refuel.

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