It is not something done with a physics engine, but there are a few particle systems written in Etoys. For example, if you launch Etoys, click on "Gallery of Projects", and click on the thumbnail third from the left in the bottom row.
It is an ideal gas simulation (in 2D). You can modify the parameters like pressure (called "gravity" because the green top wall is falling down all the time), and turtleCount that controls the number of gas molecules. But also you can modify the actual simulation code while the simulation is running, change stuff in the script called "oneStep", or perhaps you can assign different values to the "speed" variables to these molecules' own variables, etc., etc. -- Yoshiki _______________________________________________ Devel mailing list [email protected] http://lists.laptop.org/listinfo/devel
