Chulip (PS2) .PAK files

Extraction and unpacking of game archives and compression, encryption, obfuscation, decoding of unknown files
mecha_yodzilla
Posts: 8
Joined: Mon Jan 04, 2021 4:58 pm

Chulip (PS2) .PAK files

Post by mecha_yodzilla »

I've been experimenting with messing with game files, and I can't seem to find a way to extract .PAK files in the game Chulip. Every method I've seen online hasn't worked out, so I thought someone here might have some idea. I've attached an example .pak file.
Thanks!
BloodRaynare
Posts: 367
Joined: Fri Mar 10, 2017 7:23 am

Re: Chulip (PS2) .PAK files

Post by BloodRaynare »

Here's a BMS script to extract your samples:

Code: Select all

## Chulip (PS2) PAK extractor
## Script for QuickBMS: http://aluigi.altervista.org/quickbms.htm

for i = 0
   get OFFSET long
   if OFFSET == 0
      break
   endif
   putarray 0 i OFFSET long
next i
math FILES = i

sortarray 0

for i = 0 < FILES
   getarray OFFSET 0 i
   math i + 1
   if i == FILES
      get PAK_SIZE asize
      xmath SIZE "PAK_SIZE - OFFSET"
   else
      getarray NEXT_OFFSET 0 i
      xmath SIZE "NEXT_OFFSET - OFFSET"
   endif
   get FNAME basename
   string NAME p "%s_%03i." FNAME i
   log NAME OFFSET SIZE
next


Not sure if this method is correct but at least it extract the files so there's that.
And also no proper filenames since there's no strings indicates it in the PAK files.
mecha_yodzilla
Posts: 8
Joined: Mon Jan 04, 2021 4:58 pm

Re: Chulip (PS2) .PAK files

Post by mecha_yodzilla »

Thank you so much!
AmiibanTNMRN
Posts: 2
Joined: Tue Jul 06, 2021 4:50 pm

Re: Chulip (PS2) .PAK files

Post by AmiibanTNMRN »

mecha_yodzilla wrote:Thank you so much!

I have been trying to get files from this exact same game, could you link me your extracted model files?
(Also how do I kiss the train person who's buried in the playground near you?)
EDIT: Got the extracted files for myself but they are in a weird format (.dat) Did you ever work out how to open these?
mecha_yodzilla
Posts: 8
Joined: Mon Jan 04, 2021 4:58 pm

Re: Chulip (PS2) .PAK files

Post by mecha_yodzilla »

AmiibanTNMRN wrote:
mecha_yodzilla wrote:Thank you so much!

I have been trying to get files from this exact same game, could you link me your extracted model files?
(Also how do I kiss the train person who's buried in the playground near you?)
EDIT: Got the extracted files for myself but they are in a weird format (.dat) Did you ever work out how to open these?

Certainly! most of the progress i've made is contained here: https://github.com/aReallyBadDoctor/chulip
I found that there are actually models in most of the files, not just the .pak ones.
unfortunately i haven't yet been able to match images with their models, but the models all have their UVs defined, so if you can match the texture to the model, it shouldn't be too much trouble to match them up

as for the train guy, you'll need to sneak up and stop on the station he's at. he'll start to follow you, and you'll have to lead him to the Shin-Osaka station, then to the Kyoto station, then the Nagoya station, then Shin-Yokohama, then Toyko. You can read the station names by interacting with the drawings on the ground

hope this helps!
AmiibanTNMRN
Posts: 2
Joined: Tue Jul 06, 2021 4:50 pm

Re: Chulip (PS2) .PAK files

Post by AmiibanTNMRN »

mecha_yodzilla wrote:
AmiibanTNMRN wrote:
mecha_yodzilla wrote:Thank you so much!

I have been trying to get files from this exact same game, could you link me your extracted model files?
(Also how do I kiss the train person who's buried in the playground near you?)
EDIT: Got the extracted files for myself but they are in a weird format (.dat) Did you ever work out how to open these?

Certainly! most of the progress i've made is contained here: https://github.com/aReallyBadDoctor/chulip
I found that there are actually models in most of the files, not just the .pak ones.
unfortunately i haven't yet been able to match images with their models, but the models all have their UVs defined, so if you can match the texture to the model, it shouldn't be too much trouble to match them up

as for the train guy, you'll need to sneak up and stop on the station he's at. he'll start to follow you, and you'll have to lead him to the Shin-Osaka station, then to the Kyoto station, then the Nagoya station, then Shin-Yokohama, then Toyko. You can read the station names by interacting with the drawings on the ground

hope this helps!

Thanks! With these rips people could actually do stuff with the chulip models, and chulip could get a page on The Models Resource!
vrripper
Posts: 1
Joined: Tue Nov 30, 2021 10:21 pm

Re: Chulip (PS2) .PAK files

Post by vrripper »

Has anyone discovered where the animation is stored or indexed? :idea: