urbansim.net is the home of the ApeSDK Urban Simulation.

The origin of this simulation was a game called the Mushroom Boy developed in 1997 that simulated an agent carrying a dirty bomb through an urban environment reacting to movement through an urban environment. Modelling passive and active agent types specifically.

The source code was then integrated into the ApeSDK.

The graphics were written in OpenGL. This had to be updated into a software OpenGL-like engine when Apple dropped OpenGL support. But the implementation was through Apple's METAL so it was still pretty fast.

When the ApeSDK started being used in the London1940 simulation, urbansim provided a good place to accept the London1940 dataset.

The app is currently being developed to output the simulated urban environment but also accept the l40 json file format and display agent interacting output accordingly.

This is still an active project. New developers welcome!

Email barbalet at gmail dot com for more information.