The LOst Library

Taken from howto.txt

To show the Helicopter blades in the EHZ boss:

1. Copy bossheli.bmp and bossheli.smp into the same folder as LOSTLIB.EXE.

2. Run these commands in the console:
pattern bossheli.bmp
load_mappings_s2 bossheli.smp

3. Done.

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Or if you want to load it from the ROM, you still have to load the patterns first. Either using BOSSHELI.BMP or you have to uncompress the real patterns with E.S.E and load it with IMPORT_PATTERN).
Then you use the offset like this to load the mappings from the ROM:

LOAD_MAPPINGS_S2 SONIC2.BIN 0x2F970

 

This is the mappings location for almost... or every object in the whole Sonic 1 o.o

Good job!


-And for getting these to work, you have to uncompress patterns with either Nemesis' decompressor or E.S.E.

-And then load palettes from the ROM.

On Nemesis' hacking site, you'll find offsets for all the compressed art and all the palettes. You need to combine palettes by loading them over and over. Then the easiest way to save patterns and palettes is to simply type in the console:
bmp_pattern_to_bitmap bitmap.bmp

If you want to load Eggman patterns from Sonic 1, decompress them from offset 0x5E034 with E.S.E., take the decompressed file and load it with IMPORT_PATTERN. Then load the palettes with ROM_PALETTE Sonic1.bin 0x21D8. And then you can load the mappings with the command:

LOAD_MAPPINGS_S1 Sonic1.bin 0x19A34

When you are done editing the mappings, you save it with SAVE_MAPPINGS_S1 filename.smp. Put the new mappings at the end of the ROM and search for the mappings pointer like this with a hexeditor: 23 7C 00 01 7D 0C 00 04. It may appear more than once in the ROM, so you change all of them.

 

A forum has been started to help you with mappings locations in the ROMS, and also pointers so you can put the mappings back into the ROM:

http://area51.ssonicnet.com/forums/index.php?showforum=9