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TheUkrainianBard, posted Fri Dec 23, 2022 7:24 pm (74723)

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Games used in:

• KonoSuba: Cursed Relic and the Perplexed Adventurers / ?????????????!~??????????????~
• Umineko: Golden Fantasia / Ougon Musou Kyoku / ?????

Looks like a LZSS variant with separated flags/data.
Something like this:

Code:

0x00: LZLR - magic
0x04: uint32 - uncompressed filesize
0x08: uint32 - dataStart
0x0C-dataStart: flags/codewords
dataStart-EOF: literals

Found some very old tool for Umineko but without the available source - the repo was deleted some time in/after 2018. After some scouring, I have found the binaries.

As I am extremely unskilled when it comes to debugging and disassembly - I ask You for Your help (explanation of flags/literals/codeword in this implementation), to port for using in a Noesis script for KonoSuba graphic files.
Samples (compressed and decompressed) from the recent KonoSuba dungeon crawler/VN.

seacat_fight_tools.7z

masagrator, posted Sat Dec 24, 2022 9:04 pm (74729)

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I'm not sure if this will help, but you can check this repo

https://github.com/DCNick3/ShinDataUtil/tree/konosuba

TheUkrainianBard, posted Mon Jan 02, 2023 11:58 am (74830)

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Thanks for the link to the repo.

I've tried implementing it, but to avail as of yet.