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PostPosted: Sat Mar 24, 2018 11:20 pm 

Joined: Sat Mar 24, 2018 9:58 pm
Posts: 7
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Hi guys, how are you?
I'm nahucirujano from Argentina.

Today I was attempting to port the Vita official english translation of this game into the PC japanese version (like it was done with Steins;Gate 0).

I'm not a programmer or anything, I'm really noob at this, but I had some free time and gave it a try.
When I say this I mean just replacing files just to see if it worked, haha. I knew that the odds of actually working were really low.

After learning about the files this game uses, MPKs, I successfully extracted script.mpk (using QuickBMS and chaos_child.bms) obtaining 216 .scx files.

The original Vita english script files are also .scx files, and actually, they are the exact same files, except Vita has 1 more, look:

Image

What it really surprised me was the fact that the Vita .scx files are larger than the PC ones.

I tried replacing 1 file to check.
I replaced the first chapter .scx. I successfully reimported script.mpk, now slightly larger due to the replaced file.

The game opened, but as soon as I started a new game, it crashed.
I tried with the system .scx but it didn't even opened.

So, is there any other way to do this?
Any other tool I don't know of?
Some way to manually open and edit .scx files if replacing them makes the size of the .mpk larger?

Here are the original script.mpk file, and both Vita and PC (extracted) .scx files in case somebody would like to check it out by themselves.
Any help will be appreciated.

https://drive.google.com/open?id=116RjI42X8hVMFF0RydIiJrBh96rWkQU4

PS: By the way, I tried to do the same with the PS3 version, in this case it has a script.cpk, so I used a CPK Repacker, and again, the output file is much larger and the game doesn't even launch.


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PostPosted: Sun Apr 01, 2018 10:01 pm 
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Joined: Tue Oct 13, 2015 1:26 pm
Posts: 187
nahucirujano wrote:
After learning about the files this game uses, MPKs, I successfully extracted script.mpk (using QuickBMS and chaos_child.bms) obtaining 216 .scx files.
It's seems that Vita mpk file has a different compression and *.scx files was extracted incorrectly.
Upload the script.mpk file from Vita to check this out.

_________________
Tribo Gamer Brasil


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PostPosted: Mon Apr 02, 2018 1:09 am 

Joined: Sat Mar 24, 2018 9:58 pm
Posts: 7
Delutto wrote:
nahucirujano wrote:
After learning about the files this game uses, MPKs, I successfully extracted script.mpk (using QuickBMS and chaos_child.bms) obtaining 216 .scx files.
It's seems that Vita mpk file has a different compression and *.scx files was extracted incorrectly.
Upload the script.mpk file from Vita to check this out.

Thanks for your reply.
The Vita version does not have a script.mpk file, instead it's one folder called script, which contains all 217 .scx files included in my upload.


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PostPosted: Mon Apr 02, 2018 3:45 am 
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Joined: Tue Oct 13, 2015 1:26 pm
Posts: 187
So, I think that Vita scripts are encrypted. I don't know how Vita systems works and can't help you with this, but I read on internet something about Vita file decryption with MaiDumpTool.
The Steam page of the game says that have English subtitles.
Maybe you can ask for help on Clan DLAN.
Good luck hermano.

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Tribo Gamer Brasil


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PostPosted: Mon Apr 02, 2018 4:03 pm 

Joined: Sat Mar 24, 2018 9:58 pm
Posts: 7
Delutto wrote:
So, I think that Vita scripts are encrypted.

You were right, those .scx files were encrypted.
I used MaiDumpTool, and somehow, it worked:

Image

The thing is the game crashed near the beggining (after all the intro).
I reverted the game back to Japanese to skip that part. I saved.
I changed back to English, I loaded the game, and a couple of lines after this screenshot moment, the game crashed again.

I guess I should give up, since apart from swapping the files I don't know what else I can do if the game doesn't respond (this must require some knowledge about this engine which I don't have), and if I can't open and edit those .scx files :S


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PostPosted: Mon Apr 02, 2018 6:04 pm 
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Joined: Tue Oct 13, 2015 1:26 pm
Posts: 187
nahucirujano wrote:
You were right, those .scx files were encrypted.
I used MaiDumpTool, and somehow, it worked:
The thing is the game crashed near the beggining (after all the intro).
Well, now we can go on. Game crash with Vita files was expected, will be need export the texts from Vita decrypted *.scx files and import to PC *.scx files.
Delutto wrote:
The Steam page of the game says that have English subtitles.
Are you pretty sure the game isn't yet not localized in English?
Anyway, upload that Vita decrypted *.scx files. Let me see if I can help you.

_________________
Tribo Gamer Brasil


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PostPosted: Mon Apr 02, 2018 8:06 pm 

Joined: Sat Mar 24, 2018 9:58 pm
Posts: 7
Delutto wrote:
Delutto wrote:
The Steam page of the game says that have English subtitles.
Are you pretty sure the game isn't yet not localized in English?
Anyway, upload that Vita decrypted *.scx files. Let me see if I can help you.

Yes, I am. The link you provided is for the Anime series. There's no official english release for PC (neither announced yet):
https://vndb.org/v14018
It exists a project, Commite of Zero, but they aren't updating any progress.
They say the project is still alive.
I know, I could simply wait (actually I'm playing this game on my Vita), but still, I wanted to give this a try in case this was just a matter of swapping files, copying and pasting text, replacing, compressing things and the sort, well...

Here are the decrypted .scx Vita files:
https://drive.google.com/open?id=17Dzl5jAqjenhdOLhH72Y4YxSvgtAoVxT


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PostPosted: Mon Apr 02, 2018 9:03 pm 
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Joined: Tue Oct 13, 2015 1:26 pm
Posts: 187
nahucirujano wrote:
Yes, I am. The link you provided is for the Anime series.
:lol:
I didn't even know Steam sells anime, sorry for the misunderstand...
Well, there's some obfuscation on texts, probably a char indexes table, I can't help you with this... sorry. :(

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PostPosted: Mon Apr 02, 2018 10:13 pm 

Joined: Sat Mar 24, 2018 9:58 pm
Posts: 7
Delutto wrote:
nahucirujano wrote:
Yes, I am. The link you provided is for the Anime series.
:lol:
I didn't even know Steam sells anime, sorry for the misunderstand...
Well, there's some obfuscation on texts, probably a char indexes table, I can't help you with this... sorry. :(

Lol, I didn't know either.
Even so, thanks for all :)


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PostPosted: Sun May 06, 2018 4:05 am 

Joined: Sat May 05, 2018 10:08 pm
Posts: 1
Hello nahucirujano,
I have used the information you have provided and the decrypted Chaos;Child Vita script files to create the patched english script.cpk file. With a little tweaking, I have gotten the english patch to work with the PS3 version of Chaos;Child. It can be played on pc with the rpcs3 emulator, or on the PS3 as of right now. If you would like to know how I did it, I have included all the files and programs I have used within the download link below. There are 2 text files within the download that will tell you everything you need to know. The main text document to read is the one titled "How To Use". The second text file states which files I had to remove from the patch in order to start the game.

Here is the download link to the English patch- http://www.mediafire.com/file/l5f14pk1v001gqp/Chaos%3BChild%20PS3%20Patch.zip

Please note there are 2 Bugs that I have encountered, however if you read the "How To Use" file within my patch, it will state the two bugs and how to fix them. Neither of the two are critical and require simple fixes.
Also note that I do not have the time right now to play through the whole game. However, I left the game on skip for ~10 minutes and it did not crash!

Hopefully you see this,
- ZDiamond


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