SIRD Swarm is to demonstrate the PDAbSIRD engine in a more “game-like” environment, in which a number of balls bounce around a 3D box. So they not only go left, right up and down, but also go away or towards you the viewer, the 3D affect is of course achieved using the SIRD technology. You can adjust the number of flies (up to a certain number) and their size.
In this way you can see how the PDAbSIRD algorithm can be easily adapted easy to a game environment rather than an editing environment.
Porting the PDAbSIRD code to the SIRD Swarm code took about half and hour, which is pretty good, I took advantage of all the circle rendering, blitting and other such functions that I had created for PDAbSIRD.