Update

Due to low interest and homeownership keeping me from having as much free time as expected, I have suspended work on this project. I fully intend to pick it back up later in the year. In the mean time, the code is up (as promised) at https://github.com/d-nation/soccer-sim-engine

I've documented it as much as possible. Feel free to use it, improve it, or show me how I'm doing NodeJS wrong! Its my first go at making a Node project, so any feedback is welcome.