I.M.Meen (1995 PC/DOS) LAB files [complete]

[Darkfox]

Educational Doom clone by the people responsible for CD-Zelda. I'm trying to rip and convert the graphics to a viewable format (png or bmp) as well as the textures for use in a few projects. Sounds are easy as they are WAV. Graphics are hard because they are *.CMP and some are *.PCX so ripping them is a problem, ripping them doesn't quite work since they have no "magic bytes". Well, please help me crack this format.

They seem to be a headerless data file that starts off by indexing and naming each entry.

[Darkfox]

The contents of this post was deleted because of possible forum rules violation.

[aluigi]

Code: Select all

set NAME string ""
set OFFSET long 0
set SIZE long 0
get TOTAL_SIZE asize
get NEW_OFFSET asize
for
    getdstring NEW_NAME 12
    get NEW_OFFSET long

    if NEW_NAME == ""
        set NEW_OFFSET long TOTAL_SIZE
    endif

    if NAME != ""
        set SIZE long NEW_OFFSET
        math SIZE -= OFFSET
        log NAME OFFSET SIZE
    endif

    set NAME string NEW_NAME
    set OFFSET long NEW_OFFSET

    if NAME == ""
        cleanexit
    endif
next

[Darkfox]

Is this a MEX Script? Hm... this is odd, my MultiEX is giving me weird problems, a division by zero. Huh...

[chrrox]

it is a quickbms script

[Darkfox]

Thank you, now to get MultiEx working again. Maybe the old regkey is outdated or was lost. I hope Mr. Mouse comes on soon. O_o;;

[aluigi]

it's a QuickBMS script, sorry I forgot to specify it

[Darkfox]

Wow, thanks! Works like a charm! I've dumped the content of a few LAB files and they extract perfectly.

Now for the second archive format that contains images.

Are these IMG files also a kind of container?

[aluigi]

the only thing that I can notice at a first look is that the data probably starts from offset 0x1000 (probably uncompressed at 8 bit), but I have no experience with graphic formats

[Darkfox]

Alright, thanks. I'll see if somebody can get a means to convert the graphics to a usable format.

[YoshiOG1]

Is there a BMS script to compile multiple files into one LAB file?
You know, so that we can hack something in a level.

What I'd like to do is take one of the extracted files (one of the WAV sounds, for instance), change it, and then put the files back together as a LAB file. If such a script has not yet been made, then could someone please make a script to compile files into one LAB file?

Thanks in advance.
----------------------------
P.S. Here's the link to an example of what I've done with WAV files in I.M. Meen's main directory:
http://www.youtube.com/watch?v=MxgXHzP7-_c
It's quite funny, actually. And if I could just do something like this within the LAB files, that would be pretty nice!

[huckleberrypie]

I always knew that you'd end up hacking the game for YTPs.

[YoshiOG1]

... Graphics are hard because they are *.CMP and some are *.PCX so ripping them is a problem, ...

You can open *.PCX files with a program called IrfanView. I'm not sure about *.CMP, though.

[Darkfox]

That isn't a problem anymore, was just for ripping them at the time. Unpacking LAB files fixed that. CMPs are the uncracked image format and Version 2 IMG files (Chill Manor)

[YoshiOG1]

That isn't a problem anymore, was just for ripping them at the time. Unpacking LAB files fixed that. CMPs are the uncracked image format and Version 2 IMG files (Chill Manor)

Ok.
But would you know how to put LAB files back together?
Like compressing multiple files into one LAB file?