The xonix application consists of a playing area and a status display below.
The status display shows the current values for level, filled area (in percent), number of
players (lifes), and elapsed time.
The playing area has several regions. The brown region (initially only the border) is
``filled region'', where the player can move, starting from the top left corner. Beware
of the bouncing yellow eater(s) that do also move across filled regions however, if they
hit the player, a life will go away. The flyers can only bounce across the green (so-
called empty) area in the middle.
The purpose of the game is to move the player across the empty region (whereby it leaves
his way in a brown color to show where it came along), and finally cut off a piece of
unfilled region by moving him back to some filled region. If the player itself or the
(unfilled yet) way will be hit by a flyer, a life will be lost again. Once the player's
way reached another part of filled region, the way and all adjacent unfilled regions where
there is no flyer in will be filled in turn. One level has completed as soon as 75 % of
the originally unfilled area have been filled this way.
Every level, there will be one flyer more. Every second level, an additional player will
be granted. Every fifth level, an additional eater will be fired off.
The default keys to move the player around are the arrow keys. This can be changed in the
app-defaults file, however, as well as the timeout between single steps (defaulting to 50
ms equal 20 moves per second).
The default keys to immediately quit the game are `Q' and `Escape'. Hitting `P' or
iconizing the window with the window manager will pause the game; de-iconizing will con‐
There is also a high-score file, /var/cache/xonix/xonix.scores. It records the top ten
xonix players for that machine. As a special compile-time option, a mail is sent to the
previous xonix score leader when he's lost his first rank.
Xonix uses the X Toolkit and the Athena Widget Set. Below is the widget structure of the
xonix application. Indentation indicates hierarchical structure. The widget class name
is given first, followed by the widget instance name.
All the standard toolkit options apply. It's not particularly useful to attempt forcing
any geometry however.
The original xonix game has been seen somewhere on an old PC/XT clone. This is a reimple‐
mentation from scratch, done by Torsten Schoenitz starting the project on a Macintosh.
The X11 support has been written by Joerg Wunsch with the pleasant help by Alfredo Herrera
Source code comments are still mostly in German. Some files require the unusal tab width
of 4 in order to be displayed correctly.
It should be possible to pass some parameters from the command line as well (e.g. the time
step value), which is currently only possible by the back-door via the -xrm toolkit
Mail any suggestions to <@uriah.heep.sax.de>. XONIX(6x)