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1  Java Game APIs & Engines / J2ME / 3D Studio MAX M3G exporter and first impression re on: 2004-11-02 13:46:35
Mobile 3D developers are getting more industry supports. Discreet 3D Studio MAX version 7 is released and it can export scene model into M3G (JSR-184) file format.

Here is my first review of this exporter. It comes with all the pics you need to see.

Sony Ericsson also publish a paper for M3G development, which cover JSR-184 API and Micro3D API

Other Mobile 3D news can be found at

Or Check out our Mobile 3D Site at
2  Java Game APIs & Engines / J2ME / Re: Local File I/O - is it possible? on: 2003-11-27 20:14:12
Siemens and some motorola (e.g. i730) provide file access. i believe some japanese phone (iAppli..) has file access as well. otherwise, nothing in the standard spec

3  Java Game APIs & Engines / J2ME / Re: Midlet size on: 2003-11-15 03:38:42
if you use other zip utility, will the phone still be able to uncompress the jar file correctly?

just wonder...

4  Java Game APIs & Engines / J2ME / Re: New J2ME GAME: MOVIKA on: 2003-11-14 13:42:23
do you have screenshot?
5  Java Game APIs & Engines / J2ME / Re: Midlet size on: 2003-11-14 13:38:03
it adds stack map only to those class that use branch bytecode operation. if you use try-catch, if-then-else and switch-case, your classes will add a lot of size because of the stack map. avoid those.

(note: i am not 100% sure which statement translate to branch operation, correct me if i am wrong. it is just my observation)



Does anybody actually know what the Preverifier actually does? Its only supposed to add a stack map attribute to each method but I've come across classes it does not seem to touch.

6  Java Game APIs & Engines / J2ME / Re: Midlet size on: 2003-11-14 13:33:59
- reduce the number of classes, never use inner class
- remove all unecessary String or "something" object
- remove number of variables
- use simple type instead of object
- reduce number of image files, combine multiple images into one
- reduce the use of try-catch block
- try not to cross reference other classes
- and of cause, obfuscator

- sometimes, restructure your code will work, too!

hope this help
7  Java Game APIs & Engines / J2ME / MIDP 2.0 phone list at on: 2003-11-11 19:30:58
For those who are developing for MIDP 2.0 phones may wonder which phones are supported. You can found out at

Also include links to phone spec, sdk, dev site etc

Any correction and addition are welcome

hope this help. don't forget to check the large collection of j2me links database Smiley

8  Java Game APIs & Engines / J2ME / Re: Synclast-UI library on: 2003-09-09 18:10:07
thanks for the link, shareme. i am about to look for a ui toolkit and this come in about the right time. i just wish it can be modularize, so I can package up only what I need for my app.

9  Java Game APIs & Engines / J2ME / Re: bluetooth multiplayer game on: 2003-09-05 14:24:44
came across this from the website. will this help? in short, GIAC can cover device that are in either GIAC mode or LIAC mode. so using GIAC is more realiable unless you know the other device is in LIAC mode. LIAC are usually for the class of device that are discoverable for a fixed duration but not afterward, and usually under user command (kinda like IrDA on PDA)

The Limited Inquiry Access Code (LIAC) is only intended to be used for limited time periods in scenarios where both sides have been explicitly caused to enter this state, usually by user action. For further explanation of the use of the LIAC, please refer to the Generic Access Profile See Generic Access Profile, Bluetooth SIG..

In contrast it is allowed to be continuously scanning for the General Inquiry Access Code (GIAC) and respond whenever inquired.

10  Java Game APIs & Engines / J2ME / Re: bluetooth multiplayer game on: 2003-09-04 19:05:34
i am working on a getting-start type article, which will be posted to in future, i will collect lots of bluetooth/j2me related info on this site.

let me get back to my reference and see if I can find more definite answer to your question.

11  Java Game APIs & Engines / J2ME / Re: New on: 2003-08-25 16:28:02
SUN wireless website is a good place to start

in particular, you may be interested in these

more links can be found in

hope this help
12  Java Game APIs & Engines / J2ME / Re: another mobile dev port ready to serve you on: 2003-08-22 17:49:04
and in particular for game developers, you may be interested in these links

13  Java Game APIs & Engines / J2ME / new mobile developer resources ready to serve you on: 2003-08-22 17:47:22
you are invited to a latest mobile developer resources/portal.

At, you can find loads of j2me links (great for "Where to start" questions), bluetooth info, device info/review, articles, uml diagrams, and many developers-focused content. Our mission is to realize "Developers helping developers" vision, and is my contribution to this vision.

any feedback or suggestion are welcome.
14  Java Game APIs & Engines / J2ME / Re: Where to upload your midlets on: 2003-08-21 22:48:55
for a list of site your can upload/download midlets, check out here

15  Java Game APIs & Engines / J2ME / Re: Decoupling FPS rates from gameLogic/repainting on: 2003-08-21 21:20:28
this is very useful for me, as I am writing a pinball game. the event/repaint routine is driving me crazy...

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