Netaxx is back!
        After such a long waiting, I decided to install Netaxx on my home server using DDNS to deal with the IP that could change over time.

Animator Applet (Java)
        I wanted to make my own web greetings card, so I made this Java applet to animate images, sounds and musics. You'll find all you need to customize it to your own needs.

CVS Change Log Plug-in v.0.6.0 for Eclipse 3.1
        This is a great plug-in maintained on Sourceforge.net, but since Eclipse 3.1 it doesn't work. Because it's undergoing some major rewriting, they are not willing to fix this bug for this version and users are left without any other option. So I decided to fix it myself and this is the plug-in package. To install it, unzip the file under your Eclipse's Plugin directory. If you want to generate the new plugin yourself, you'll find the decompiled and fixed ChangeLog class inside the JAR file. You can then get the original plug-in and replace the ChangeLog class yourself.

How to configure the CD/DVD buttons on Toshiba A70
        After many desperate hours of searching and messing up with the registry, I figured out how to make those damned buttons work with my Winamp 2 and this is the How-to.

PUC-Rio Website Search Engine
        One of my first projects done from scratch, this sequential based search engine had its first version done with a lot of work from Fabio Mathias, one of my great friends and former work pal. Since then it had many improvements such as a spider bot and the use of HTML templates for the results document. I may consider providing this toolset upon request.

MailQuota
        A nice C program for Unix (AIX?) to help keeping users' mails under control. It reads user data from a text database which specifies logins and groups, puts these informations into an alphabetic tree with a parallel sequential list, then it iteracts through the list and checks each mailbox within the spool to see if it's over the quota, if there are expired (un)read mails and if appropriate it removes the oldest mails off and produces a small warning mail telling the user about it. It works with a configuration file to specify where's the spool, where's the text database and what are the quotas (group based). It also provides the possibility to specify special accounts that shall not be checked. I may consider providing this toolset upon request.

Tradução do IRC Primer
        This is something that someone from EFnet known as doogie suggested me (or was it the email I got from Undernet refusing to link PUC-Rio's server?) to do as a contribution to the IRC community. I liked the idea and here it is. Possibly the first translation to Portuguese of the IRC Primer.

Netaxx
        This is a multiuser board game I made along with my friend and work pal Eduardo Poyart. It's based on Ataxx which is similar to Othelo. Poyart actually created a pseudo-language called Ziglog to make his multi-language support to the game more, uhm, useful. His own words were: "Ziglog exists! It's a language that has never been used and never will be... but still an existing language". I've noticed that many people come here looking for an Othelo implementation. Well, a friend of mine has one and is willing to share. It uses IUP library and lets one (vs. the computer) or two players. The computer moves are done using Fuzzy Logic. Send me a message indentifying yourself and I may arrange it for you, or visit Claudio's Fuzzy Othelo.

Hamna Hamna Lycanthrope MUD
        The Multi User Dimension I used to maintain and run in the University. It was my first C language programming experiment and it was very instructive. I may send the source code upon request. Many people contributed to this MUD but unfortunally I remember very few real names: Bruno Lima, Flavio Graf von Koenigsmarck, Fabio Mathias...

HTML: Building Webpages
        A paper that is given to my students when they take my HTML lessons. I pretty much redid the one we had, made by the few friends and former work pals that used to give these classes before me such as Alberto Levy Macedo and Magno Araujo Filho. It's in Portuguese and I may send the DOC file upon request.

AltaVistaCansada
        A little joke that me and Eduardo Poyart made during a lunch break about the famous search engine using JavaScript. Try out the many Language options : )

Hollow World MUD
        I've done some good code contributions to this nice MUD. My troubleshooting skills greatly increased with that. I feel like I can extinguish any bug now : )

Utilizando JNI para Adicionar Implementação Nativa C ou C++ a Programas JAVA (Using JNI to Implement Native Functions C or C++ in JAVA Programs)
        Published paper in association with professor Arndt von Staa about how to use C/C++ implementations to improve performance on JAVA programs. This work started as a Programming Project in year 2000 with professor Arndt being my advisor, then he suggested that we could improve it and turn it into a paper. Took some time, but here it is : )

Active Suspension Control Prototype using Fuzzy Logic
        A final project I did for the Fuzzy Logic class. It came out very nicely, considering that I made it using an old Turbo C++ -- it seemed to be the easiest way to do graphic animations without prior graphic environment experience. Unfortunally I lost the instruction document, so if you think it's worth the try you may have to find out the key commands on the C source code : þ Anyway, this prototype allows the user to change the suspension rules on-the-fly or by specifying a text file with rulesets. It then creates a bump ground and moves it against the tire. The user can also vary speed, bump frequency and strength. The package comes with an unpublished article in Portuguese about this project.

Fingerprint Matching
        One of my undergrad researches. The article may be available soon.

Genetic Algorithms and Graph Colorization
        Another undergrad research. This is an interactive Excel example but it also requires the Evolver tool from Palisade Software, an Excel plug-in. It graphically shows the evolution of one of the best solutions for the Graph Colorization problem. You can set as many conenctions as you want, but you can use only a maximum of 25 elements. You may also set the cost of a particular connection (if I remember it right) and some other small nifty things. The process is done using a genetic evaluation function made in VB (macro).

Modified Furbot 1.65H (H from Hrimhari)
        Intended to be used in Furcadia, Furbot has lost many opportunities of being up-to-date, and according to it's own programmer, Sanctimonius, it has been discontinuated and he doesn't expect any credits for modifications, so I bashed my head at the monitor a few times and managed to change the EXE code to add a very important feature that will certainly solve most of everyone's problems: an action called "Send Raw Command". With that action you can make use of features such as gomap and summon/join, for example. And remember! Sanctimonius made everything in his reach to keep us without this feature!

Light and Shadow Rendering Algorithm O(n2)
        In November 2002 I spent some weeks with my friend Eduardo Poyart at Santa Monica and in the meantime I had an interview with Don Likeness, from Treyarch. I was hoping to get a job there which unfortunally didn't happen and Eduardo was helping me as he could. Anyway, as part of the interview I was requested to implement either an A* algorithm or a light and shadow renderer. I choosed the A* and made it sucessfully, even though I had some trouble getting used to the Windows API in time. Don suggested me to do the light and shadow renderer as an exercise, to improve my knowledge. Currently (2003/02/26) I thought I could make a Java Applet to show it off and here it is. It runs quite as fast as the C++ implementation, as long as you either use SUN's official latest JVM or have your M$ JVM to use JIT compiler.