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1 user currently in Rom Hacking:  hukka |
| Acmlm's Board - I2 Archive - Rom Hacking - Lemmings NES Notes from me... |
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cpubasic13 17 years old now. Time to buy some M rated games by myself! Level: 54  Posts: 1221/1346 EXP: 1206934 For next: 26936 Since: 03-15-04 From: Blame my parents, Eddy Since last post: 2 days Last activity: 1 day |
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I am not sure if the level data for the NES version of Lemmings has been found and I did look for any documents for it... so... Crappy pic of how I did find level data. I used DWedit's corrupting program to find the data. Here is what I found. (Using Lemmings_(U).nes) 0x4010 - Seems to be some pointer data. Changing this changes the position of the level and also changes certain tiles to different things. Consists of three bytes for first level... so probably pointers... 0x4D10 - Beginning of level data Tiles have two bytes. Format is tile and then an unknown value. Time to test the stuff. Obviously, changing 01 00 02 00 03 00 to all 00, the first three tiles in the first level become nothing but black. Putting it back to the way it was and changing all values of 00 to 01, the tiles mess up. Still unknown what that second byte is. Change it to 0F and the tiles mess up again. This might be tileset specific values or something along the lines of that, since they do seem to have flipped tiles and not just screwed up stuff. While this isn't much, this is the start of a new game to hack. There are a few things needed though... such as sprite positions and TSA (I found it but I lost the address...). Level headers are also needed to change tilesets and how many jobs are available... Sorry if this has been found (and these notes aren't stupendous), but I was bored and wanted something different to hack... and I don't think there are any Lemmings editors or hacks out there... |
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dan Snap Dragon Level: 43  Posts: 645/782 EXP: 534516 For next: 30530 Since: 03-15-04 Since last post: 20 hours Last activity: 14 hours |
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| I did some hacking into this game a while ago, but never really did anything with the data. :/ I also found the level data but found a couple of other things: Amount of lemmings you have for the first level - 39 TSA of first stage - 401C (edited by dan on 07-11-05 03:09 PM) |
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