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70 lines
2.8 KiB
Groff
70 lines
2.8 KiB
Groff
.\" $OpenBSD: worm.6,v 1.14 2015/03/09 19:52:02 tedu Exp $
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.\"
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.\" Copyright (c) 1989, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)worm.6 8.1 (Berkeley) 5/31/93
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.\"
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.Dd $Mdocdate: March 9 2015 $
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.Dt WORM 6
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.Os
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.Sh NAME
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.Nm worm
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.Nd play the growing worm game
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.Sh SYNOPSIS
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.Nm worm
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.Op Ar size
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.Sh DESCRIPTION
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In
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.Nm worm ,
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you are a little worm: your body is the "o"'s on the screen
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and your head is the "@".
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You move with the hjkl keys (as in the game
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.Xr snake 6 ) .
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If you don't press any keys, you continue in the direction you
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last moved.
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The upper case HJKL keys move you as if you had pressed
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several of the corresponding lower case key (9 for HL and 5 for JK, or
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until you run into a digit, whichever comes first).
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.Pp
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On the screen you will see a digit.
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If your worm eats the digit it will grow longer by that number of "o"'s,
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scaled to screen size.
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The object of the game is to see how long you can make the worm grow.
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.Pp
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The game ends when the worm runs into either the sides of the screen
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or itself.
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The current score
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.Pq how much the worm has grown
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is kept in the upper right corner of the screen.
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.Pp
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The optional argument,
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.Ar size ,
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is the initial length of the worm's body.
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The specified length will be rejected if it causes the worm to cover
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more than roughly one third of the screen.
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