XPK decruncher

[Joe Maroni]

is there any tool to decrunch xpk packed files that uses the NUKE.lib

i´ve tried several tools, but the destination file had always the same size than the source file...

[ant512]

The XADMaster archive from the Aminet should do it. Grab one of these:

http://ftp.uni-paderborn.de/aminetbin/find?xadmaster0

Make sure you choose the right one for your CPU.

[Codetapper]

This problem is often caused by the source files be write protected so it depacks but can't write back the new file - check that first.

[Joe Maroni]

first xadmaster says that the file isn´t packed, but i checked the header and it seems that it is packed...

have a look:

WRLD    MACR
XPKF üNUKE
ø =   -
\‡ó Ð
øQED¤J@Ýß q€;UêN«ª ß!ĪzO´€X6«ûD»º@0ÿ

codetapper: how to check that problem...???

[Codetapper]

What's this WRLD stuff in the header? XPK will not unpack a file unless the header (from memory) begins with XPKF - by you having WRLD it will not be detected.

To test if a file is write protected either use DOpus, or just type list in a CLI/Shell. Or if you are depacking from the command line, you should see the error appear saying "could not write destination file" etc...

But I'm 99.9% sure the WRLD header you see is the problem - it doesn't appear to be a real XPK file (unless someone has encrypted it all first). BTW, where did you get this file?

[Joe Maroni]

the file is one of them from the flink cd32 game with the extension .wld

there is already an install (whdload) and if you read the document of the install you can read this at the bottom:

- to save diskspace and memory for preload you may uncompress (XFD)
and afterwards compress (ProPack) all *.wld and *.raw files

maybe i only have to cut the first words...

[Joe Maroni]

ok it isn´t possible and maybe i found the problem...

there are XPK headers spread over the whole file...before a header starts 2 words before is the name of that is following after the header...

the above example shows that there perhaps is a macro (?). if you look deeper into file you find words like "PAGE, CELL, HEAD, MAP, ANIM, TTAB"...
maybe it works if each section is saved particular...

in CELL section are the tiles for each level stored, ANIM holds all animated stuff, TTAB could be the color informations, MAP contains the CELL positions, HEAD are the graphics for our action hero...and PAGE.....don´t know...

i think this is the structure of the file but i´m not really sure...unpacked files would be really useful...

[Codetapper]

OK easy. The file is just a lot of small files joined together into one archive. I don't have an automatic solution but for example on the file forest.wld I just looked for the magic XPKF header and noted the positions. Then I used my grab utility to rip the file starting from there, then depack each one. eg.

grab forest.wld file1 from $18
grab forest.wld file2 from $200
grab forest.wld file3 from $11c8
grab forest.wld file4 from $b3ec
grab forest.wld file5 from $b570

etc. Then you can XFDDecrunch each file and you have the files in their raw form.

[Methanoid]

I like this board... there is a wealth of knowledge and generally (!!) the people are friendly.... Nice peeps!

[spiff]

Originally Posted by Codetapper

OK easy...

... just looked for the magic XPKF header and noted the positions. Then I used my grab utility to rip the file starting from there, then depack each one. eg.

grab forest.wld file1 from $18...

Now why didn't I think of that!

[rgen]

You can use xfdscan (included in the xfd library package) for a automatic solution:
xfdscan source destname NE
NE is the NoExtern switch, otherwise it detects a FIRE cruncher file erroneously.

[Joe Maroni]

thanks for all your helping posts...i admire you for your knowledge...

[Joe Maroni]

err...wether codetappers method neither rgens works fine...everytime i get the error that the file type isn´t unpackable...

[rgen]

That's strange. You have xfdmaster.library, xpkmaster.library in LIBS: and xpkNUKE.library in LIBS:compressors ?
Then a xfdscan extro.wld RAM:extro NE produces 110 files extro.00 - extro.109 in RAM:.
A following xfddecrunch RAM:extro.#? should decrunch them.

But the whole statement in the installer readme makes no sense, as the wld files are archives of compressed files and the raw files aren't compressed at all. Anyway you can simply propack the files and saves ~147 KB.

[Frog]

You should try Track2File http://amiga.emucamp.com/wt/others.html it seek for any packed data in files or disks.

[Joe Maroni]

Originally Posted by Frog

You should try Track2File http://amiga.emucamp.com/wt/others.html it seek for any packed data in files or disks.

this is a really good tool...