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using Manic Miner and Jet Set Willy game engines
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Message: 6255
Author: john_elliott_uk
Date: 05/09/2007
Subject: Re: Tweaking the JSW engine: One for the experts
In manicminerandjetsetwilly@yahoogroups.com, dm_boozefreek wrote:
I'd like to know would it be safe to modify the "Draw Willy routine"
in JSW64, or is the memory located in different places? Or will this
be OK in theory but overwrite the code from another part of the
program?
You won't be able to do it blindly by dropping in the code you've
quoted, because JSW64 has various of its own changes in that region.
In particular, the pixel lookup table is at 9E00h not 8200h and the
code that overwrites Willy's sprite is different.
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