NAME¶

cloudlife - a cellular automaton based on Conway's Life

SYNOPSIS¶

cloudlife [-display host:display.screen] [-foreground color] [-background color] [-window] [-root] [-mono] [-install] [-visual visual] [-ncolors integer] [-cycle-delay microseconds] [-cycle-colors integer][-cell-size integer] [-initial-density integer] [-max-age integer]

[-fps]

DESCRIPTION¶

The cloudlife program draws a cellular automaton based on Conway's Life, except that cells have a maximum age, and only one pixel per cell is drawn every tick.

OPTIONS¶

cloudlife accepts the following options:

-window

Draw on a newly-created window. This is the default.

-root

Draw on the root window.

-mono

If on a color display, pretend we're on a monochrome display.

-install

Install a private colormap for the window.

-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.

-cycle-delay integer

Time in microseconds to sleep between ticks. Default 25000.

-cycle-colors integer

How many ticks should elapse between cycling colors. 0 to disable color cycling. Default 2.

-ncolors integer

How many colors should be used (if possible). Default 64. The colors are chosen randomly.

-cell-size integer

Size of each cell, in powers of 2. Default 3 (8-pixel cells).

-initial-density integer

Percentage of cells that are alive at start and when the field is repopulated. Default 30.

-max-age integer

Maximum age for a cell. Default 64.

-fps

Display the current frame rate and CPU load.

ENVIRONMENT¶

DISPLAY

to get the default host and display number.

XENVIRONMENT

to get the name of a resource file that overrides the global resources stored in the RESOURCE_MANAGER property.

SEE ALSO¶

X(1), xscreensaver(1), xlock(1)

COPYRIGHT¶

Copyright © 2003 by Don Marti. Based on examples from the hacks directory of xscreensaver, Copyright (c) 1997, 1998, 2002 Jamie Zawinski <jwz@jwz.org>

This man page based on the man page of sierpinski, Copyright © 1996 by Desmond Daignault.

Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation.

AUTHOR¶

Don Marti <dmarti@zgp.org> 20 May 2003.