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