fluidballs - the physics of bouncing balls.
] [-visual visual
[-window] [-root] [-count number
] [-size number
] [-wind number
] [-elasticity number
] [-nonrandom] [-no-shake] [-fps]
Models the physics of bouncing balls, or of particles in a gas or fluid,
depending on the settings. If "Shake Box" is selected, then every
now and then, the box will be rotated, changing which direction is down (in
order to keep the settled balls in motion.)
- -visual visual
- Specify which visual to use. Legal values are the name of a
visual class, or the id number (decimal or hex) of a specific visual.
- Draw on a newly-created window. This is the default.
- Draw on the root window.
- -count number
- How many balls to display. Default: 300.
- -size number
- Maximum size of each ball. Default: 25.
- -gravity number
- Coefficient of gravity. Useful values are < 0.1.
- -wind number
- Wind. Useful values are < 0.1. Default: 0.00.
- -elasticity number
- Coefficient of elasticity. Useful values are 0.2 to 1.0.
Default: 0.97. Lower numbers make less bouncy balls.
- -delay number
- Per-frame delay, in microseconds. Default: 10000 (0.01
- Make all balls be the same size.
- Make the balls be random sizes. Default.
- -shake | -no-shake
- Whether to shake the box if the system seems to have
settled down. "Shake" means "change the direction of
- Display the current frame rate and CPU load.
- to get the default host and display number.
- to get the name of a resource file that overrides the
global resources stored in the RESOURCE_MANAGER property.
Copyright © 2002 by Peter Birtles and Jamie Zawinski. Permission to use,
copy, modify, distribute, and sell this software and its documentation for any
purpose is hereby granted without fee, provided that the above copyright
notice appear in all copies and that both that copyright notice and this
permission notice appear in supporting documentation. No representations are
made about the suitability of this software for any purpose. It is provided
"as is" without express or implied warranty.
Peter Birtles, Jamie Zawinski, and Steven Barker.