out of the box
Nostalgia in 3D
by Christian Perle
There are thousands of tools and utilities for Linux. "out of the box" looks
for the nicest, and presents one program every month which is a must-have or
has less attention than it should have. This article focuses on the three
dimensional waste of time(the german word was more positive) ICBM3D.
One type of programs which is constantly liked, are the Emulators
Some younger Linux users might be surprised, how users of the pre-windows
generation look back at the beginnings of their computer time. But being
old makes nostalgic... Most time old games are used for this purpose, but
this works without emulators, too. For example with a game of the category
"as the vectors learned walking", written by Bill Kendrick.
Explanations for beginners here:
Emulator: Ein Programm, das einen anderen Computer so vollständig
simuliert, dass Programme für diesen Rechnertyp lauffähig werden.
Populäre Emulatoren sind z.B. vice (ein C64-Emulator), uae
(ein Amiga-Emulator) und der STonX-Atari-ST-Emulator.
What is ICBM3D?
The unpronounceable program name ICBM3D stands for Inter-Continental
Ballistic Missiles 3D. In this game, you have to defend your own cities
by letting rockets explode before they reach the ground. The game only needs
X-Windows, so it runs independant from specific hardware.
Installation without (big) problems
There is no pre-compiled version of ICBM3D, so we have to compile it ourselves.
At first we get the archive from
to compile and install:
tar xzf icbm3d.0.4.tar.gz
su - (root-Passwort eingeben)
cp icbm3d /usr/local/bin ; exit
The make-call doesn't only start the compilation, but cares for
a variable to find the X libraries. The error message referring to
the lack of write access in /usr/X11R6 can be ignored. The program
shouldn't go there.
We don't need write access to the target directory /usr/local/bin
for the compilation. So we get the root access only for the final copying
and quit using them immediately after that by using exit.
Again explanations for beginners!
Quelltext: Die für Menschen lesbare Form einer Software.
Durch das Übersetzen
("Kompilieren") mit einem Compiler wird daraus ein ausführbares Programm.
make: (Siehe auch den Linux-User aus Heft 03/00.) Programm zur
Ablaufsteuerung beim Übersetzen von
Quelltexten. Die Konfigurationsdatei von make (das Makefile)
dabei beispielsweise Informationen über Abhängigkeiten zwischen den
After a successful installation we start an xterm or kvt
Now the window with the title graphics should appear (picture 1).
You can choose the start level with the keys L and K
Space starts the game and Q quits at every time.
Already at the title screen, you can see the cities surrounded by
pic. 1: The ICBM3D title screen
After the game start, a three dimensional marker (the targeting point)
appears above the cities. It can be move parallel to the ground
with the cursor keys. A light gray marker at the ground shows the height
of the targeting point, which can be changed by pressing the left mouse button
and moving the mouse up and down. The viewing position can changed with
the combination of the right mouse button and mouse motion.
After a short time, the first missiles appear. Their height is shown by
a [...] line, and their direction is indicated by a tail of pixels.
An attack situation is shown in picture 2.
Pic. 2: Hell's Bells in Pixel-City
After bringing the targeting point near a rocket, you only have to press space.
Then , the nearest anti-missile gun fires at that position. If you
miss the Missile, the city will be destroyed, if there was still one.
With increasing level number, the number of missiles increases, and
other objects appear, too.
The author develops an Open GL version of this game parallel to this version.
That version isn't that nostalgic anymore, of course, but has better graphics.
You can find it among other games of the same programmer at
Again stupid explanations for beginners.
Open GL: Von der Firma SGI ins Leben gerufener Standard für die
3D-Grafikprogrammierung. Eine freie Version der Open-GL-Bibliothek ist
Mesa GL (http://mesa3d.sourceforge.net/).
Copyright © 2000 Linux-Magazin-Verlag