ROM Hack Direct CTPK Editor?

[dj505]

So, I've been doing a lot of sprite editing for Project Mirai DX, and its texture files are packed into .ctpk archives. Here's the catch, though.

Each file has a .bin extension, and when you open it in a hex editor, instead of just being a plain ctpk file it starts off with a bunch of text like this:

Spoiler

and when you scroll down past it all, you finally hit the .ctpk file itself. And if you scroll down to the end of that ctpk file, you find a second one, then a third one, or more depending on the file.

Is there are way I could edit these directly instead of having to individually extract them, edit them, and patch them back in through hex editing?

 

[Thelostrune]

Sounds like an obvious archive. Show us the full header, maybe?

 

[dj505]

Sounds like an obvious archive. Show us the full header, maybe?

The screenshot I included starts at the very top of the file. It's not a container of any type afaik.

 

[pikatsu]

Use kuriimu

 

[dj505]

Use kuriimu

Can't open it.

 

[pikatsu]

use Kukkui.exe

 

[Sonansune]

seems ctpk are packed into an archive with offset jump?
needs actual bytes to confirm

 

[dj505]

use Kukkui.exe

Doesn't work either

seems ctpk are packed into an archive with offset jump?
needs actual bytes to confirm

Which bytes? (Sorry, am a n00b)

 

[Sonansune]

Doesn't work either

Which bytes? (Sorry, am a n00b)

those bytes instead of ascii characters

--------------------- MERGED ---------------------------

file sample would be great.

 

[dj505]

those bytes instead of ascii characters

Ah ok. Here you go, starting from the top of the file. It goes on for a bit. Not sure I can share a smple file cuz copyright, or I'd do so.

Spoiler

 

[Sonansune]

Ah ok. Here you go, starting from the top of the file. It goes on for a bit. Not sure I can share a smple file cuz copyright, or I'd do so.

Spoiler

View attachment 88810

what's the offset when cptk first occur in the bin file?

 

[dj505]

what's the offset when cptk first occur in the bin file?

376C is the offset of the C in the first CTPK header.

 

[Sonansune]

376C is the offset of the C in the first CTPK header.

what about 3768?

 

[dj505]

what about 3768?

That's 4 bytes before the C, which are 80 00 08 00

 

[Sonansune]

That's 4 bytes before the C, which are 80 00 08 00

what's the next ctpk offset?

 

[dj505]

what's the next ctpk offset?

103874

 

[Sonansune]

103874

there is no offset list then, at least not any bytes that you posted.
can't really help you w/o the actual file. sorry.

try this:
https://gbatemp.net/search/43269404/?q=Project+Mirai+DX&o=date&c[node]=276
other ppl did create mod version before. may you can find some useful info.

 

[dj505]

there is no offset list then, at least not any bytes that you posted.
can't really help you w/o the actual file. sorry.

try this:
https://gbatemp.net/search/43269404/?q=Project+Mirai+DX&o=date&c[node]=276
other ppl did create mod version before. may you can find some useful info.

Ok, thanks for your help tho! This game isn't exactly the most popular game to hack, only a few people (including myself) have done it. I've already learned a ton from it too.