Resource centre for ZX Spectrum games
using Manic Miner and Jet Set Willy game engines
Archive of the
Manic Miner & Jet Set Willy Yahoo! Group
messages
|
|
|
|
|
Message: 5215
Author: john_elliott_uk
Date: 04/12/2005
Subject: A warning to those editing JSW64 games
If you started writing your JSW64 game by taking a copy of the
original JSW64 (or JSW64:Manic Miner, or JSW64:Dragon) then you should
go to the memory map and mark pages 9E00 and 9F00 as reserved.
Otherwise you run the risk of overwriting the sprite-position table
and/or the rope coordinates table.
This is, of course, another good reason to start with a 48k game and
upgrade rather than editing an existing JSW64 game.
"Maria On Tour" has this defect in its memory map, but the actual
tables appear to be undamaged so the game plays as normal; it's just
something to be careful of if you load it into JSWED.
|
|
|