XScreenSaver(1) 					      General Commands Manual						   XScreenSaver(1)

NAME

       penetrate - simulates a classic arcade shooting game

SYNOPSIS

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

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 inter-
       vals.  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 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, direct-
	       color, 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.

BUGS

       The layout of the screen isn't quite the same as the game this program tries to emulate.  In this this program, the missles 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.

       See http://www.mame.net/ for details.

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							     18-Jun-01							   XScreenSaver(1)