NAME¶

hydrostat - Wiggly squid or jellyfish with many tentacles.

SYNOPSIS¶

hydrostat [--display host:display.screen] [--visual visual] [--window] [--root] [--window-id number] [--delay number] [--speed number] [--count number] [--head-radius number] [--tentacles number] [--thickness number] [--length number] [--gravity number] [--current number] [--friction number] [--no-pulse] [--wireframe] [--fps]

DESCRIPTION¶

Wiggly squid or jellyfish with many tentacles. A muscular hydrostat is a biological structure used to move its host about, consisting of muscles with no skeletal support. It performs its hydraulic movement without fluid in a separate compartment, as in a hydrostatic skeleton.

OPTIONS¶

--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.

--window

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

--root

Draw on the root window.

--window-id number

Draw on the specified window.

--delay number

Per-frame delay, in microseconds. Default: 20000 (0.02 seconds).

--speed number

Animation speed. 2.0 means twice as fast, 0.5 means half as fast.

--count number

Number of squid. 1 - 100. Default: 10.

--head-radius number

Head size. 10 - 100. Default: 60.

--tentacles number

Number of tentacles. 3 - 100. Default: 40.

--thickness number

Thickness of tentacles. 3 - 40. Default: 18.

--length number

Length of tentacles. 10 - 150. Default: 70.

--gravity number

Strength of gravity. 0 - 10.0. Default: 0.5.

--current number

Strength of current. 0.0 - 10.0. Default: 0.25.

--friction number

Coefficient of friction. 0.0 - 0.1. Default: 0.02.

--pulse | --no-pulse

Whether the squid should pulse. Default true.

--wireframe | --no-wireframe

Render in wireframe instead of solid.

--fps | --no-fps

Whether to show a frames-per-second display at the bottom of the screen.

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.

XSCREENSAVER_WINDOW

The window ID to use with --root.

SEE ALSO¶

X(1), xscreensaver(1)

COPYRIGHT¶

Copyright © 2016 by Justin Windle 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.

AUTHOR¶

Justin Windle and Jamie Zawinski.