penetrate(6) XScreenSaver manual penetrate(6)

NAME

penetrate - simulates a classic arcade shooting game

SYNOPSIS

penetrate [--display host:display.screen] [--root] [--window]
[--window-id number] [--install] [--noinstall] [--visual visual]
[--bgrowth microseconds] [--lrate number] [--smart number] [--fps]

DESCRIPTION

Penetrate simulates the arcade classic with the cities and the stuff
shooting down from the sky and stuff. The computer plays against
itself, desperately defending the forces of good against those
thingies raining down. Bonus cities are awarded at ever-increasing
intervals. Every five levels appears a bonus round. The computer
player gets progressively more intelligent as the game progresses.
Better aim, more economical with ammo, and better target selection.
Points are in the bottom right, and high score is in the bottom left.
Start with -smart to have the computer player skip the learning
process.

OPTIONS

--display host:display.screen
Specifies which X display we should use.

--root Draw on the root window.

--window-id number
Draw on the specified window.

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

--install
Install a private colormap for the window.

--noinstall
Don't 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. Possible choices include

default, best, mono, monochrome, gray, grey, color,
staticgray, staticcolor, truecolor, grayscale, greyscale,
pseudocolor, directcolor, number

If a decimal or hexadecimal number is used,
XGetVisualInfo(3X) is consulted to obtain the required
visual.

--foreground color
Specifies the default foreground color.

--background color
Specifies the default background color.

--bgrowth integer
Specifies the growth rate of the bomb explosions.

--lrate integer
Set the initial rate of laser fire.

-smart Have the computer player skip the learning process.

--fps Display the current frame rate and CPU load.

BUGS

The layout of the screen isn't quite the same as the game this
program tries to emulate. In this this program, the missiles come
out of the cities; when really, there are supposed to be three
missile bases on hills, with the cities in the valleys between them.

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 (C) 1999 Adam Miller. 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

Adam Miller <adum@aya.yale.edu>, 1999.

X Version 11 6.09 (07-Jun-2024) penetrate(6)