cloudlife



XScreenSaver(6)                                                XScreenSaver(6)




NAME

       cloudlife - a cellular automaton based on Conway’s Life


SYNOPSIS

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



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 dis-
               able color cycling.  Default 2.

       -cycle-colors integer
               How  many ticks should elapse between cycling colors.  0 to use
               just one color. Default 1.

       -ncolors integer
               How many colors should be used (if possible).  Default 32.  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.




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 direc-
       tory  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,  pro-
       vided  that  the  above  copyright notice appear in all copies and that
       both that copyright notice and this permission notice  appear  in  sup-
       porting documentation.


AUTHOR

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




X Version 11                      20-May-2003                  XScreenSaver(6)

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