The navigation bar for a winning entry now has a "_Original C_" link
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<h1>The International Obfuscated C Code Contest</h1>
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<h2>2011/toledo - Best non-chess game</h2>
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<h3>Dual player tank shooter game</h3>
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</div>
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<a class="Left" href="../richards/index.html">← 2011/richards</a>
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<a class="Left" href="../vik/index.html">2011/vik →</a>
|
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<a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2011/toledo/toledo.c">C code</a>
|
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<a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2011/toledo/Makefile">Makefile</a>
|
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|
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<a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2011/toledo/toledo.orig.c">Original C</a>
|
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<a class="Right" href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fwww.ioccc.org%2F2011%2Ftoledo%2Findex.html">✓</a>
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<h2 id="author">Author:</h2>
|
||
<ul>
|
||
<li>Name: <a href="../../authors.html#Oscar_Toledo">Oscar Toledo G.</a><br>
|
||
Location: <a href="../../location.html#MX">MX</a> - <em>United Mexican States</em> (<em>Mexico</em>)</li>
|
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<!-- BEFORE: 1st line of markdown file: 2011/toledo/README.md -->
|
||
<h2 id="to-build">To build:</h2>
|
||
<pre><code> make</code></pre>
|
||
<p><strong>NOTE</strong>: this entry requires the <code>X11/Xlib.h</code> header file and the X11 library to
|
||
compile. For more information see the
|
||
FAQ on “<a href="../../faq.html#X11">X11</a>”.</p>
|
||
<p>There are two alternate versions, <a href="https://github.com/ioccc-src/winner/blob/master/2011/toledo/toledo.alt.c">one that lets you reconfigure the
|
||
controls and size</a> and <a href="https://github.com/ioccc-src/winner/blob/master/2011/toledo/toledo.alt2.c">another that should work for
|
||
Windows</a>. See <a href="#alternate-code">Alternate code</a> below.</p>
|
||
<h2 id="to-use">To use:</h2>
|
||
<pre><code> ./toledo</code></pre>
|
||
<h2 id="alternate-code">Alternate code:</h2>
|
||
<p>The first alt version, <a href="https://github.com/ioccc-src/winner/blob/master/2011/toledo/toledo.alt.c">toledo.alt.c</a>, allows you to reconfigure
|
||
the controls and the dimensions more easily.</p>
|
||
<p>The second version, <a href="https://github.com/ioccc-src/winner/blob/master/2011/toledo/toledo.alt2.c">toledo.alt2.c</a>, should work for Windows but
|
||
does not allow you to reconfigure the keys or dimensions. This is because it
|
||
cannot be tested by us.</p>
|
||
<h3 id="alternate-build">Alternate build:</h3>
|
||
<p>For the one that lets you reconfigure the keys you will want to look at the
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||
included header file, <a href="https://github.com/ioccc-src/winner/blob/master/2011/toledo/keysym.h">keysym.h</a>, to find the correct macros. Once you
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||
have the right names you can define the macros <code>FIRE</code>, <code>FORWARD</code>, <code>BACKWARD</code>,
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||
<code>LEFT</code>, <code>RIGHT</code>, <code>WIDTH</code> and <code>HEIGHT</code>. Here are the defaults:</p>
|
||
<pre><code> FIRE= XK_BackSpace:XK_Tab
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FORWARD= XK_Up:XK_w
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BACKWARD= XK_Down:XK_s
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LEFT= XK_Left:XK_a
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RIGHT= XK_Right:XK_d
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WIDTH= 512
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HEIGHT= 288</code></pre>
|
||
<p>but you can change them about however you like, even with other keys. For
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||
instance to swap <code>LEFT</code> and <code>RIGHT</code>:</p>
|
||
<pre><code> make clobber LEFT=XK_Right:XK_d RIGHT=XK_Left:XK_a alt</code></pre>
|
||
<p>but you can specify something completely else and you can pick and choose which
|
||
controls you wish to redefine. You might also wish to change the dimensions of
|
||
the game, <code>WIDTH</code> and <code>HEIGHT</code> which have an arbitrarily selected lower limit as
|
||
well as the default values.</p>
|
||
<p>Observe that each of the controls are a pair in the form of <code>player2:player1</code>
|
||
(yes, player 2 comes first!).</p>
|
||
<h2 id="judges-remarks">Judges’ remarks:</h2>
|
||
<p>This two player game uses X11. The control keys can be configured by
|
||
modifying the <code>A</code>, <code>B</code>, <code>C</code>, <code>D</code> and <code>E</code> macros at compilation.</p>
|
||
<p>After a quick splash screen the objective should be clear. There
|
||
are Red, Green and Cyan tanks. A larger window can be made by altering
|
||
the source early on, right before the code gets hard to follow, or using the
|
||
<a href="#alternate-code">alternate version</a>.</p>
|
||
<p>Like Oscar’s previous winning X11 program for the 19th IOCCC, if
|
||
you remove both the X11 include files and replace them with</p>
|
||
<pre><code> #include "layer.c"</code></pre>
|
||
<p>you ought to be able to compile and run this program on Windows.</p>
|
||
<p><strong>NOTE</strong>: this is what <a href="https://github.com/ioccc-src/winner/blob/master/2011/toledo/toledo.alt2.c">toledo.alt2.c</a> is for.</p>
|
||
<h2 id="authors-remarks">Author’s remarks:</h2>
|
||
<pre><code> /=========\\
|
||
\==\ /==/ ||
|
||
|| || /====\ |\/=\ || //==\ ==\ |=\
|
||
|| || || || || || // || =| | |
|
||
|| || //===| || || ||=// \\=\\ ==/ |=/
|
||
|| || || || || || || \\ || User's
|
||
\===/ \\==// || || || \\ \==// Manual</code></pre>
|
||
<p>This is a color X11 3D tank-game for two players, just compile
|
||
and run it without arguments.</p>
|
||
<p>You will see briefly a tank spinning before each level.</p>
|
||
<p>The Left half of the window shows the red player view and the right
|
||
half shows the green player view; the background will change to
|
||
blue when the view goes inactive.</p>
|
||
<p>The objective is to chase and destroy the other player’s tank.
|
||
There is also an aqua tank for testing your aim and getting
|
||
extra points.</p>
|
||
<p>Caveat: You can shoot only 3 bullets at a time.</p>
|
||
<p>Trick: You can fire faster if they explode on anything.</p>
|
||
<p>Believe it or not, it has strategy!</p>
|
||
<p>When only one tank remains on the field, the level will advance.
|
||
Don’t forget to destroy the aqua tank.</p>
|
||
<p>The <del>battle</del>playground is surrounded by mountains and each level is
|
||
filled with random obstacles (pyramids and cubes).</p>
|
||
<p>The bars show players energy and score; each bar shows energy
|
||
and indicates the current player view (wider on the left). The right
|
||
part grows with every point.</p>
|
||
<p>Keys for player 1 (lowercase):</p>
|
||
<ul>
|
||
<li>Tab - Fire</li>
|
||
<li>w - Go ahead</li>
|
||
<li>s - Go backwards</li>
|
||
<li>a - Turn left</li>
|
||
<li>d - Turn right</li>
|
||
</ul>
|
||
<p>Keys for player 2:</p>
|
||
<ul>
|
||
<li>Backspace - Fire</li>
|
||
<li>Up arrow - Go ahead</li>
|
||
<li>Down arrow - Go backwards</li>
|
||
<li>Left arrow - Turn left</li>
|
||
<li>Right arrow - Turn right</li>
|
||
</ul>
|
||
<p>Note: Numeric keys don’t work.</p>
|
||
<p>If you don’t like the keys assignment, you can change it in the
|
||
Makefile or use the <a href="#alternate-code">alternate version</a>.</p>
|
||
<h3 id="parental-advisory-warning">PARENTAL ADVISORY WARNING:</h3>
|
||
<p>This game is highly violent: when the tank explodes you can
|
||
see the little stick man blowing in parts.</p>
|
||
<p>Not really, just kidding :D</p>
|
||
<h3 id="platforms-tested">PLATFORMS TESTED:</h3>
|
||
<ul>
|
||
<li>openSUSE 10.2 x86-32, X11R6 1024x768 32-bits color.</li>
|
||
<li>Fedora Core 8 x86-64, X11R6 1280x1024 32-bits color.</li>
|
||
<li>Fedora Core 11 x86-64, X11R6 1024x768 32-bits color.</li>
|
||
<li>Fedora Core 14 x86-64, X11R6 1024x768 32-bits color.</li>
|
||
</ul>
|
||
<h3 id="complete-feature-set">COMPLETE FEATURE SET:</h3>
|
||
<ul>
|
||
<li>Multiplayer out of the box.</li>
|
||
<li>Totally self-contained, no external files.</li>
|
||
<li>Fast-and-furious action at 29.97 frames per second.</li>
|
||
<li>Just as the movies, 16:9 aspect-ratio.</li>
|
||
<li>Beautiful mountains landscape plus horizon line :)</li>
|
||
<li>Tanks and bullets exploding as wires with weird physics.</li>
|
||
<li>Tanks back off when firing.</li>
|
||
<li>There is an infinite number of levels.</li>
|
||
<li>Always different levels.</li>
|
||
<li>Animated intro.</li>
|
||
<li>It has color!</li>
|
||
</ul>
|
||
<h3 id="features-that-programmers-will-find-appealing">FEATURES THAT PROGRAMMERS WILL FIND APPEALING:</h3>
|
||
<ul>
|
||
<li>Works both with 32 and 64-bit CPUs.</li>
|
||
<li>Double buffered, portable to any X11 with 24/32-bit color.</li>
|
||
<li>Memory-hungry as must be any 3D program; uses a 256 MB array.</li>
|
||
<li>Total and absolute irreverent coding style, so it generates a lot of warnings
|
||
when compiled.</li>
|
||
<li>It can take several minutes to compile (known culprits: Fedora Core 11-14 on
|
||
x86-64 512 MB).</li>
|
||
<li>It is written in the only true C: K&R, and no, that doesn’t mean
|
||
Katherine & Rose.</li>
|
||
<li>Vectorial scalable graphics: do you want a bigger viewport? Change variables
|
||
<code>M</code> and <code>N</code> (see the <a href="#alternate-code">alternate</a> code).</li>
|
||
<li>Half of the program is formatted as 3D cube. View with tabs at 8 columns and a
|
||
square font.</li>
|
||
<li>The other half of the program is unprintable source code, so no typing from
|
||
paper, you have to write a converter of tabs and form-feeds to its C escaped
|
||
forms.</li>
|
||
<li>No text, so this program can be used and understood easily in any country.</li>
|
||
<li>This program is highly ecological, it sleeps when it is not doing anything.</li>
|
||
<li>Virtual world with its own physics laws.</li>
|
||
<li>When closing the window it will show an X11 error :P</li>
|
||
</ul>
|
||
<h3 id="obfuscation-tricks">OBFUSCATION TRICKS:</h3>
|
||
<ul>
|
||
<li>Loop code included inside loop test.</li>
|
||
<li>Function arguments used as variables.</li>
|
||
<li>Operators used freely.</li>
|
||
<li>Pre-calculated values to save bytes.</li>
|
||
<li>Uses the <code>+++</code>, <code>+-</code> and <code>*+</code> undocumented C operators :P</li>
|
||
</ul>
|
||
<pre><code>
|
||
....,,,,---++++++--,,..\
|
||
.,,,....... .$@@@@@@@@@@@@$$@@@@@@@@@@@@@@#+\
|
||
@@@@@###@@@@$$$@@@@$$$@@@-......-@+......,,,,,,##\
|
||
=++==++++++++=@@$==#$$$$$---,,,,@@@,,,,,,-------@@,..........,,.\
|
||
,===#$$$$$$###$####=======@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@+=##$@@@@@@@@.
|
||
+@,,++++++++=+=========++++===++++++++++-+++@@-,,,,,,,,---+++=++++--,,... @.
|
||
.@. .......,,,,-----++=@=++==@$=+--,,... @.
|
||
$# S P O I L E R .,,-#@--,,,@$..... @.
|
||
.@ ..,--+==++-,,,,.,,,,=@+++++====+++++---,,,....@.
|
||
@+ ..,,-+++++++-,,.. @. ....,,,,,---+@@\
|
||
,@ ..,--+++=+++,,.. $# .==+\
|
||
@#--++==++-,,.. ,@ S P O I L E R .==+\
|
||
,#@@$+,,. @. ==+\
|
||
.,,+++++,,. S P O I L E R $= +=+\
|
||
..,-==++-,. ,@ ---\
|
||
.,-+=+++,.. @. .++-\
|
||
.,,++=++-,. @+ ==+\
|
||
.,-++==+-,. +@ ==+\
|
||
..,+++=+-,.. .@. +=+\
|
||
.,-+++++,@@==
|
||
</code></pre>
|
||
<h3 id="the-history-of-this-program">THE HISTORY OF THIS PROGRAM:</h3>
|
||
<p>When I started working on this program, I figured that it would
|
||
be easy to fit on the character limit, but I missed three things: the enormous
|
||
X11 names, the non-portable key codes and my 2 KB of artwork.</p>
|
||
<p>Very hard coding did the first thing. In fact I worked out twenty-nine different
|
||
versions and at one step I had four parallel versions with different
|
||
characteristics removed (mountains, horizon lines, score/status bars and
|
||
explosions) but I’ve managed to fit it all together!</p>
|
||
<p>The second thing was solved using the Makefile: it is under
|
||
160 bytes and you get adjustable controls. The greatest
|
||
mystery on the Earth is why X11 gives non-portable key codes to
|
||
the user.</p>
|
||
<p>And finally, the third “Thing” was growing and growing, and
|
||
growing, eating bytes for lunch… after endless rounds of
|
||
crunching I obtained three-hundred seventy-eight bytes of
|
||
artwork and guess what? It doesn’t fit.</p>
|
||
<p>So I had to integrate a decompressor based on the space, tabulators and other
|
||
non-counted characters.</p>
|
||
<p>The final program is composed of eight micro-functions: one is the core and does
|
||
most of the hard work and the other functions help do the X11 things, explosion
|
||
effects, 3D calculations and viewing.</p>
|
||
<ul>
|
||
<li><code>K()</code> - 3D transformation</li>
|
||
<li><code>s()</code> - Rendering</li>
|
||
<li><code>b()</code> - Line color selection</li>
|
||
<li><code>G()</code> - Explosion animation</li>
|
||
<li><code>g()</code> - Moves 3D object backward and forward</li>
|
||
<li><code>F()</code> - Collision detection</li>
|
||
<li><code>T()</code> - Core (also known as main loop :D)</li>
|
||
<li><code>main()</code> - Initialization and ‘uncruncher’, what a common name!;
|
||
C programs should start in the cool() function :).</li>
|
||
</ul>
|
||
<p>The source code was formatted as a cube using a specially written program. This
|
||
program is smaller and obfuscated what is needed so the reformatting doesn’t
|
||
exceeded the character limits. The crunched vectors were generated by another
|
||
special program and the tank that surrounds this text was generated by yet
|
||
another program.</p>
|
||
<p><em>Have fun!</em></p>
|
||
<!--
|
||
|
||
Copyright © 1984-2024 by Landon Curt Noll. All Rights Reserved.
|
||
|
||
You are free to share and adapt this file under the terms of this license:
|
||
|
||
Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
|
||
|
||
For more information, see:
|
||
|
||
https://creativecommons.org/licenses/by-sa/4.0/
|
||
|
||
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|
||
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|
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|
||
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|
||
|
||
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|
||
|
||
<div id="inventory">
|
||
<h1 id="inventory-for-2011toledo">Inventory for 2011/toledo</h1>
|
||
</div>
|
||
<h2 id="primary-files">Primary files</h2>
|
||
<ul>
|
||
<li><a href="https://github.com/ioccc-src/winner/blob/master/2011/toledo/toledo.c">toledo.c</a> - entry source code</li>
|
||
<li><a href="https://github.com/ioccc-src/winner/blob/master/2011/toledo/Makefile">Makefile</a> - entry Makefile</li>
|
||
<li><a href="https://github.com/ioccc-src/winner/blob/master/2011/toledo/toledo.alt2.c">toledo.alt2.c</a> - second alternate source code</li>
|
||
<li><a href="https://github.com/ioccc-src/winner/blob/master/2011/toledo/toledo.alt.c">toledo.alt.c</a> - alternate source code</li>
|
||
<li><a href="https://github.com/ioccc-src/winner/blob/master/2011/toledo/toledo.orig.c">toledo.orig.c</a> - original source code</li>
|
||
<li><a href="https://github.com/ioccc-src/winner/blob/master/2011/toledo/keysym.h">keysym.h</a> - header file to help identify some key symbols</li>
|
||
<li><a href="https://github.com/ioccc-src/winner/blob/master/2011/toledo/layer.c">layer.c</a> - translation layer to make 3D Tanks game</li>
|
||
</ul>
|
||
<h2 id="secondary-files">Secondary files</h2>
|
||
<ul>
|
||
<li><a href="2011_toledo.tar.bz2">2011_toledo.tar.bz2</a> - download entry tarball</li>
|
||
<li><a href="https://github.com/ioccc-src/winner/blob/master/2011/toledo/README.md">README.md</a> - markdown source for this web page</li>
|
||
<li><a href="https://github.com/ioccc-src/winner/blob/master/2011/toledo/.entry.json">.entry.json</a> - entry summary and manifest in JSON</li>
|
||
<li><a href="https://github.com/ioccc-src/winner/blob/master/2011/toledo/.gitignore">.gitignore</a> - list of files that should not be committed under git</li>
|
||
<li><a href="https://github.com/ioccc-src/winner/blob/master/2011/toledo/.path">.path</a> - directory path from top level directory</li>
|
||
<li><a href="index.html">index.html</a> - this web page</li>
|
||
</ul>
|
||
<hr style="width:10%;text-align:left;margin-left:0">
|
||
<h4>
|
||
Jump to: <a href="#">top</a>
|
||
</h4>
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||
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</div>
|
||
|
||
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||
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||
|
||
<!--
|
||
|
||
Copyright © 1984-2025 by Landon Curt Noll. All Rights Reserved.
|
||
|
||
You are free to share and adapt this file under the terms of this license:
|
||
|
||
Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
|
||
|
||
For more information, see:
|
||
|
||
https://creativecommons.org/licenses/by-sa/4.0/
|
||
|
||
-->
|
||
|
||
<div class="footer">
|
||
|
||
<div id="copyright"><h3>Copyright © 1984-2025 by Landon Curt Noll:
|
||
<a href="https://creativecommons.org/faq/#what-does-some-rights-reserved-mean"
|
||
target="_blank"
|
||
rel="license noopener noreferrer">Some Rights Reserved</a></h3>
|
||
<p>
|
||
This work is <b>licensed by Landon Curt Noll</b> under
|
||
<b><a href="https://creativecommons.org/licenses/by-sa/4.0/?ref=chooser-v1"
|
||
target="_blank"
|
||
rel="license noopener noreferrer"
|
||
style="display:inline-block;">CC BY-SA 4.0</a></b>.
|
||
<img style="height:22px!important;margin-left:3px;vertical-align:text-bottom;"
|
||
src="../../png/cc.png"
|
||
alt="cc inside circle symbol">
|
||
<img style="height:22px!important;margin-left:3px;vertical-align:text-bottom;"
|
||
src="../../png/by.png"
|
||
alt="person inside circle symbol">
|
||
<img style="height:22px!important;margin-left:3px;vertical-align:text-bottom;"
|
||
src="../../png/sa.png"
|
||
alt="arrow looping back on itself inside circle symbol"><br>
|
||
You should <b>carefully review</b> the
|
||
<b><a href="https://creativecommons.org/licenses/by-sa/4.0/legalcode.en"
|
||
target="_blank"
|
||
rel="license noopener noreferrer">CC BY-SA 4.0 LEGAL CODE</a></b>
|
||
before using the licensed material.<br>
|
||
You may wish to review the
|
||
<b><a href="../../license.html"
|
||
target="_blank"
|
||
rel="license noopener noreferrer">highlights of some of the key features and terms</a></b>
|
||
of <b>CC BY-SA 4.0</b>.<br>
|
||
</p>
|
||
</div>
|
||
|
||
<div id="coda"><h3>Coda</h3>
|
||
<p>
|
||
<a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fwww.ioccc.org%2F2011%2Ftoledo%2Findex.html" rel="nofollow">Nu HTML check this web page</a><br>
|
||
<a href="#top">Jump to top</a> <a href="#content">Jump to Content</a> <a href="#inventory">Jump to Inventory</a><br>
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||
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