LEV files pretty much cracked

22 Aug 2011 at 17:24

Since we’re on the subject of JCS and related concepts, it’s worth mentioning that hacking into LEV files has progressed to the point that the first custom LEV file has been produced. LEV files are the level files used by Jazz 2 versions 1.00g and 1.00h, and understanding of their structure has lagged far behind J2L files for some time, apart from zapS’ managing to extract image data from the Jungle levels in 2009.

You’ll need an OEM copy of Jazz 2 to play this custom level, and you’ll have to rename files to run it. It’s nothing remotely special, just a proof of possibility. A practically complete specification for LEV files can also be found on ERE, which is all the more impressive considering that the J2L file specification has more gaps now than the LEV one does.

- Violet CLM


djazz on 22 Aug 2011 at 20:48

I filled some gaps in the J2L spec. using the structs from WebJCS and J2NSM.

Violet CLM on 23 Aug 2011 at 00:47

Right back atcha. :) Ooh, that explains why Overlord called it SecAndLayer.

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