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Is there support planned for painkiller?

The 1st single player demo use a different pak format than the 2nd one (which is the same as the final game).

cheers.

Soon I will start to take a look at it.

I have the game and also interested to unpack those files.
not for the contents but to learn.

maybe can you (Mr.Mouse) post a small tutorial on how you reverse the pack process?

i'm sure others people here would be interested to learn instead to use like common users..

Hope nothing unpleasant in my post

thanks!

I would like a tutorial also.

thanks

mambox wrote:I have the game and also interested to unpack those files.
not for the contents but to learn.

maybe can you (Mr.Mouse) post a small tutorial on how you reverse the pack process?

i'm sure others people here would be interested to learn instead to use like common users..

Hope nothing unpleasant in my post

thanks!

Yeah, I have been thinking about doing something along those lines. Mind you, at the beginning of 2003 I wrote a two-page How-To on this very subject for the Dutch hardcopy magazine PCZone, but hey, that's in Dutch, so unless you understand the language, that won't help you out. Anyway, an English version is on my to-do list.

maybe a translator can help a bit

are those pages avail online?

about painkiller i'm almost sure its a xor encryption but enough skill to manage rip the routine to convert the files

not only time to use but time to learn also.

greets!

Actually no, the resources in there are packed using unzip32.dll or some other standard PKZip tool, but the file uses it's own format to store the variables PKZip would need. .

I'm working on a way to either convert/reconvert the *.PAK <> PKZip (so you can open them using WinZip) or a MultiEx Commander implementation.

EDIT
More specifically, it turns out the *.PAK files are actually complete *.ZIP files, but some of the "PK" identification tags have been altered. I will write a converter that will be able to flip between the two states. I just keep being surprised at the trouble these game programmers go through to find yet another package format. In this case, they betrayed the PKZip-format-with-a-twitch all too easily. I don't really understand why they do this. The MOD community would probably love to use their base as a way forward, and they could have just used a real standard zip format to be used. Like the Quake3 engine does, a simple rename of the Quake3.PAK files to .ZIP will do the trick. Oh well.

In the first demo,.pak was altered pkzip file,another curious guy brought the way to get it back but all has changed,at least in the retail version,the pak version seem xored.

I was looking during a debug session the way it changed some xored ascii back to a more readable text.

but a bit too complicated to reverse the whole scheme for me

anyway thanks for the time spent!

mambox wrote:In the first demo,.pak was altered pkzip file,another curious guy brought the way to get it back but all has changed,at least in the retail version,the pak version seem xored.

OMG Why did you not say this before? If you already knew that the demo version was an altered zip file, I needn't have looked into that.

I do not have access to any retail *.PAK files, so I won't be able to check em out.

Sorry,i tought that you'll see retail package.

anyway 2 demos are out,the first from feb.04.

data\levels.pak was:
50 61 69 6E-50 61 63 6B-00 00 33 98-50 30 00 00 PainPack 3ÿP0
00 00 00 00-00 00 00 00-00 00 0A 00-00 00 43 32 â—™ C2
4C 35 5F 54-6F 77 6E 2F-05 06 03 04-14 00 04 00 L5_Town/♣♠♥♦¶ ♦
08 00 A7 9E-50 30 9F 91-1C 4D C7 02-00 00 59 07 ◘ º₧P0ƒæ∟M╟☻ Y•
00 00 1A 00-00 00 43 32-4C 35 5F 54-6F 77 6E 2F → C2L5_Town/
43 32 4C 35-5F 54 6F 77-6E 2E 43 4C-65 76 65 6C C2L5_Town.CLevel

this one is an altered zip but PK authors didnt liked that someone can reverse to a zip so they improved the second demo version:
same file:

01 FC F8 01-00 78 01 -54 DB 6E DA-40 10 7D AF ☺â

How big is that file in bytes you are talking about?

there is 2 demos!
this is the single player demo 2 it have have the same pak format than retail version.
http://www.gamershell.com/download_5522.shtml

3,981,827 Levels.pak
1,060,767 LScripts.pak
1,202,744 Maps.pak
3,132,070 Models.pak
388,396 Scripts.pak
447,678 Shaders.pak

or as said in the second version files are same as retail (i mean encryption)

Right, well, I figured it out almost completely. The PAK format now uses ZLib instead of PKZip compression. I have only to figure out how it encrypts the names of the resources and we're done.

Mr.Mouse wrote: I have only to figure out how it encrypts the names of the resources and we're done.

that's what i can't find!

found some occurence of xoring in lscripts.pak

search:Pyvjhxl
xor P with 19=C
xor y 21=l
v 23=a

and so on xor 19+2 and you'll find Classes

but i'm lost further...that's why i required some help on teaching from you as you know the reverse much better than me

and why not to learn instead using as dead-user?