Add a "idle" method to the state structure
[neverball] / data / ball /
drwxr-xr-x   ..
drwxr-xr-x - atom
drwxr-xr-x - basic-ball
drwxr-xr-x - blinky
drwxr-xr-x - earth
drwxr-xr-x - eyeball
drwxr-xr-x - lava
drwxr-xr-x - magic-eightball
drwxr-xr-x - reactor
drwxr-xr-x - saturn
drwxr-xr-x - snowglobe
drwxr-xr-x - sootsprite