Editing game data for FE: Fates

[MrKisuke]

I've figured out how to extract the files from a .cia of FE Fates (I own a legal copy, 2 actually).  But I'm kind of stumped on what to do next.  I have the mods from RainThunder and it says to used the GameData.bin.  I've found the GameData.bin.lz, and I try simply looking for certain hex strings without doing anything to it, but find nothing.  When I decompress it and open it again in a hex editor, I only get 00s.  What do I do to start the modding process?

[VincentASM]

Are you using a LZ77 (de)compressor? I recommend Batch-LZ77.

Oh wait, FEAT also works, but I don't *think* it re-compresses.

After decompressing, you shouldn't get all 00s. So clearly something has gone wrong. Also, the file size should be bigger after decompressing.

[MrKisuke]

The original size is 85kb, the decompressed size is 205kb so no problem there.  But it still just shows 00s, I tried out Batch-LZ77 (v1.3) and it said "not all files were processed successfully," and that the GameData.bin.lz file was "not a compressed file."  For context I used HackingToolkit3DS to extract the content.

[thane98]

Use FEAT for decompressing, it's much more reliable than Batch-LZ77 for that kind of stuff.

It's a shameless plug, but if you want to edit Fates' files, you could always use FEFEditor. The version of Nightmare that comes with it will automatically decompress/recompress .lz files for you, so you wouldn't even need FEAT or Batch-LZ77 for modifying GameData.bin.lz.

[MrKisuke]

Sweet it's working, thanks.