Category Archives: ruby

Tracking down Circular Dependencies in Static Libraries

Posted on June 26, 2009 by proj

The GNU linker has some trouble when you present it with multiple library archives that depend upon each other. Libraries with symbols resolved in other libraries must be presented earlier on the command line. You can work around this with … Continue reading →

Posted in linking, programming, ruby | 1 Comment

Austin Ruby Meetup 1-17-2008

Posted on January 17, 2008 by proj

We had a good time at the meetup tonight. Steven and I busted out the laptops and shared some code and ideas. He had a nice rails app for learning Latin that supported a tagging architecture. I know next to … Continue reading →

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Build Huffman Compression in Ruby

Posted on January 8, 2008 by proj

Many wonderful things can be done with binary trees. One brilliant usage of the binary tree was proposed by David Huffman in 1951 at MIT which has since become the foundation for much of the compression technology available today. Huffman … Continue reading →

Posted in algorithms, ruby | 5 Comments

Build a Binary Tree in Ruby

Posted on January 7, 2008 by proj

Building algorithms in ruby is fun and rewarding. This binary tree doesn’t balance itself but it is simple and flexible using ruby blocks for visit and insert. Traversal style can be selected optionally to visit with :inorder, :preorder or :postorder. … Continue reading →

Posted in algorithms, ruby | 2 Comments

Alternatives to Lexical Binding with Ruby

Posted on January 6, 2008 by proj

In ruby the default way to get a name to return a value is via ruby’s lexical scoping rules. Lexical scoping rules use the way the code is written to determine what a variable name means. You can read the … Continue reading →

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Using VIM as an Interactive Ruby Environment

Posted on January 5, 2008 by proj

I’m working on some ruby code today on a cleanly installed vim. I decided to improve my editing experience a bit and found some a couple enhancements that work quite nice together. Evaluate ruby with the press of a button … Continue reading →

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RubyCube on Ubuntu 7.10

Posted on October 19, 2007 by proj

I spent a few minutes on my new laptop with RubyCube. Since it uses GLUT as a foundation it was simple to port the extconf.rb to build on Ubuntu. I’m going to have to wait until after we ship TR … Continue reading →

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Implementing a Finite State Machine with a Ruby Domain Specific Language

Posted on August 14, 2007 by proj

DSL-FSM.. that kinda sounds like some wierd internet sub-culture. It stands for domain specific language – finite state machine. I proposed both topics as presentation material for the austin-ruby group that I meet with once a month. Steven Harms the … Continue reading →

Posted in austin, game programming, meetup, programming, ruby | 8 Comments

RubyCube 0.2.1 released to RubyForge

Posted on May 3, 2007 by proj

A new windows binary and source distribution is ready on ruby forge with inital support for sprites.  I also took this opportunity to fix a few small bugs and update the documentation. This also marks the first public upload of … Continue reading →

Posted in game programming, programming, ruby, rubycube | Leave a comment

RubyCube on Mac OS X

Posted on April 17, 2007 by proj

I’ve been making small incremental progress. First problem I ran into was: objc: failed objc_getClass(NSObject) for GLUTApplication->isa->isa objc: please link appropriate classes in your program Trace/BPT trap This was pretty easily fixed by making sure to pass ‘-framework Foundation’ to … Continue reading →

Posted in macos, ruby, rubycube | Leave a comment