Java Based Map Editor

[[users]jlddodger]

Hello, I recently wrote a prototype for a java based map editor. I know that entity contains all the functionality one could want, but the idea of creating the program in java is that it will function platform independently. Window, Mac, Linux, etc.

However, while I have the programming experience to do this. I need someone who is very knowledgable about the binary layout of the halo 2 map. Even better would be someone who does a lot of hex modding and knows how to properly change stuff.

At current, I can open a map to view the tags, and load an IFP plugin (probably). I know it isn't much, but I have at least confirmed that it is possible to do this stuff in java.

Problems:
Some structures report 64 bit values but I haven't actually found any. Java has no innate 64 bit support.
Java is big-endian, so I have to swab all the multibyte datatypes (fixed).
The IFP loader is non trivial. (I am trying to simplify.)
GUI blocks on processing. (Ok, but no progress bars.)

Any help will be appreciated.