Resource centre for ZX Spectrum games
using Manic Miner and Jet Set Willy game engines
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Manic Miner & Jet Set Willy Yahoo! Group
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Message: 4139
Author: john_elliott_uk
Date: 28/04/2004
Subject: Re: About Mark Woodmass' marginally faster edition of JSW/comment o
--- In manicminerandjetsetwilly@yahoogroups.com, soa1000
> I was playing this yesterday while half-heartedly cataloging the
This is because the stack copying code was put in memory at 8300h -
> different editions of JSW1 that I own, and I encountered a weird bug
> which I've never heard about before. Specifically, the ropes are
> scrambled. Every time I go into a rope room, the dots aren't
> following the usual pattern but instead are flying all around the
> room, as if the rope has exploded. It's weird to watch, since Willy
> can still climb up and down the rope (he may not be able to avoid it,
> as the dots usually crash into parts of the scenery every second),
> and as he does so he moves about the screen chaotically according to
> which dot of the rope he should be clinging to
which overwrites the rope trajectory data.
> I'm surprised if this has never been mentioned before - I
I thought it was mentioned on Andrew Broad's site, but I can't
> redownloaded the game, so it's not just a bug in my copy
immediately find the reference now.
> Also, I was just playing the most recent versions of JSW64 and I
Sorted. I've uploaded a fixed version, which also contains functions
> noticed that on all but versions V and X, Willy has an odd quirk
> whereby he can jump up into any solid block so long as it's directly
> above him on his left side. If he jumps into the side of it, he'll
> hit it. If he jumps up and there are blocks above him on the right,
> he'll hit those, but blocks on the left he'll go through no problem
to change the current music. Turn on the cheat mode (not Writetyper,
the other one) and you'll see, or rather hear.
I've moved JSW64 to a folder in the Files section. It's accompanied
there by Jet Set Wibble (the upside-down game engine, which isn't on
my site any more) and another slightly modified engine called Mono
(inspired by the screenshots at
< http://jswremakes.emuunlim.com/Systems/dragon.htm >).
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