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effole, posted Fri Nov 26, 2021 5:04 am (67699)

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The text area of "story.dat & common_story.dat" file seems to be compressed.

It seems that it may be a lz4 compression algorithm because of the "lz4.nro & lz4.nrr" file, but it looks different from the general lz4 compression.

Can anyone give me a hint or how to decompress it?

A file that is guessed to be compressed.
story.dat = main story?
common_story.dat = common text?

The image below is part of story.dat.


The font is used utf-8

aluigi, posted Fri Dec 03, 2021 3:28 pm (67850)

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I think this is the format of the DAT file (except script.dat which is something else):

Code:

# NSW: Asatsugutori DAT
get DATA_OFF long
get FILES long
for i = 0 < FILES
    get DUMMY long
    get OFFSET long
    putarray 0 i OFFSET
next i
    get OFFSET asize
    putarray 0 i OFFSET
for i = 0 < FILES
    getarray OFFSET 0 i
    math i   1
    getarray SIZE   0 i
    math SIZE - OFFSET
    log "" OFFSET SIZE
next

There are no filenames, the DID file is totally useless, no idea what's format of the extracted files.