Hello World

Hi! My name is Chip Bell and I'm a developer in DC area. I currently work for PBS KIDS building educational apps and games for kids. I have a background in web development in PHP and JavaScript, along with graphics and applied math. In the past, I've also been a volunteer coach for the Mercer University competitive programming team and I'm an intermediate-level Spanish-speaker. ¡Gracias por vistarme! Thanks for stopping by!

Some Stuff I've Done

• Dead Eye

  Dead Eye is a Halloween-themed shooting gallery in the style of the Atari 5200. It uses no external assets aside from the score font; everything else is rendered/sythesized on-the-fly for the game, making the total weight of the game come in at around 100KB.

• Wave Simulation

  This was a grad-school project where I used FEM analysis to simulate a drum head in real-time. The demo allows you to draw your own drumhead, and it can triangulate that into a mesh that it can feed into a FEM simulation. It incorporates the wave equation with both a dampening term and elasiticty.

• NES Sequencer

  In this sequencer, I used the WebAudio API to emulate the Audio Processing Unit of the original Nintendo Entertainment System. I've also provided some demo songs too. The README on GitHub has a write-up of some of the implementation details, and how you could make your own songs.

• Water Colors

  This is a tiny canvas drawing tool that emulates water color drawing.

• L System Viewer

  I also wrote a viewer for L-Systems, rule-based systems for building strings. Surprisingly simple patterns can be used to construct very beautiful, complex structures.

• Judge

  Judge is programming contest administration software written in PHP and Laravel 4. I've used for the last 2 years or so to help run practices for Mercer University. It has a full test suite and is fairly painless to setup and manage.

• Problem Set Manager

  The problem set manager serves as an archive for past competition problems for students. It allows me, a coach, to upload a PDF of a problem set and split it into multiple PDFs (one for each problem in the set). I can then tag each problem under various topics such as Graph Theory or Combinatorics, and upload test data sets and solutions for students to use when practicing and learning.