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ioccc/2020/tsoj/index.html
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Landon Curt Noll a1c86c8a7a add original C links to entry navigation bars
The navigation bar for a winning entry now has a "_Original C_" link
(between the ✅ and the Inventory on the right hand side) so that one
may easily view the original C code that was submitted for IOCCC judging.

Ran `make www timestamp` to perform the above.
2025-08-10 12:46:23 -07:00

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<h1>The International Obfuscated C Code Contest</h1>
<h2>2020/tsoj - Most misleading indentation</h2>
<h3>Asteroids</h3>
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<a class="Left" href="../otterness/index.html">&larr; 2020/otterness</a>
<a class="Left" href="../index.html">&uarr; 2020 &uarr;</a>
<a class="Left" href="../yang/index.html">2020/yang &rarr;</a>
<a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2020/tsoj/prog.c">C code</a>
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<h2 id="author">Author:</h2>
<ul>
<li>Name: <a href="../../authors.html#Tsoj">tsoj</a><br>
Location: <a href="../../location.html#DE">DE</a> - <em>Federal Republic of Germany</em> (<em>Germany</em>)</li>
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<h2 id="to-build">To build:</h2>
<pre><code> make</code></pre>
<p>There is an alternate version which has controls that will make much more sense
to those familiar with vi. See <a href="#alternate-code">Alternate code</a> below.</p>
<h2 id="to-use">To use:</h2>
<pre><code> ./prog</code></pre>
<h2 id="try">Try:</h2>
<pre><code> # Make your terminal as large as possible, possibly reduce your font size
# then...
./prog</code></pre>
<h2 id="alternate-code">Alternate code:</h2>
<p>This version has the difference of moving forwards, left, backwards and right,
where instead of <code>w</code>, <code>a</code>, <code>s</code> and <code>d</code>, you can use <code>k</code>, <code>h</code>, <code>j</code> and <code>l</code>.</p>
<h3 id="alternate-build">Alternate build:</h3>
<pre><code> make alt</code></pre>
<h3 id="alternate-use">Alternate use:</h3>
<pre><code> # Make your terminal as large as possible, possibly reduce your font size
# then...
./prog.alt</code></pre>
<p>..and maybe curse less than you might otherwise, but still probably curse (see
below) :-)</p>
<h2 id="judges-remarks">Judges’ remarks:</h2>
<p>This game does not use curses, but you may end up cursing.</p>
<p>The code is made more difficult to read using an innovative, right justified,
reverse indentation style.</p>
<h2 id="authors-remarks">Author’s remarks:</h2>
<h3 id="controls">Controls</h3>
<ul>
<li>Movement: <code>w</code> (forwards), <code>a</code> (left), <code>s</code> (backwards), <code>d</code> (right)</li>
<li>Fire: space</li>
<li>Quit: <code>q</code></li>
<li>Pause: <code>p</code>, then use any other key to resume</li>
</ul>
<pre><code> /\
//\\
/ \
/______\
/\/\</code></pre>
<h3 id="compile-and-run">Compile and run</h3>
<h4 id="linux">Linux</h4>
<pre><code> cc -std=c99 -O3 prog.c -o prog
./prog</code></pre>
<h4 id="windows">Windows</h4>
<p>The only way I found to make it work is to use <a href="https://www.msys2.org">MSYS2</a>.
When using the MSYS2 shell you can install gcc via pacman.</p>
<pre><code> cc -std=c99 -O3 prog.c -o prog
./prog.exe</code></pre>
<h4 id="warnings">Warnings</h4>
<ul>
<li><code>-Wno-missing-prototypes</code></li>
<li><code>-Wno-shorten-64-to-32</code></li>
<li><code>-Wno-sign-conversion</code></li>
<li><code>-Wno-implicit-int-float-conversion</code></li>
<li><code>-Wno-missing-field-initializers</code></li>
<li><code>-Wno-implicit-float-conversion</code></li>
<li><code>-Wno-vla</code></li>
<li><code>-Wno-float-conversion</code></li>
<li><code>-Wno-comma</code></li>
<li><code>-Wno-shadow</code></li>
<li><code>-Wno-format</code></li>
<li><code>-Wno-empty-body</code></li>
<li><code>-Wno-misleading-indentation</code></li>
<li><code>-Wno-maybe-uninitialized</code></li>
<li>You may experience a mild <a href="https://en.wikipedia.org/wiki/Motion_aftereffect">motion
aftereffect</a> when playing for
too long.</li>
</ul>
<h3 id="high-score">High score</h3>
<p>Score will be shown in the top left corner.
My best was <strong>156</strong>. If you beat that I’ll send you the image of a very
expensive chocolate.</p>
<h3 id="features">Features</h3>
<ul>
<li>Procedural star generation.</li>
<li>Very space-efficient <code>for</code> loops.</li>
<li>No use of <code>!=</code> or <code>==</code>.</li>
<li>Smooth rendering even on slow terminals.</li>
<li>Advanced ASCII art.</li>
<li>Cutting edge physics engine and collision detection.</li>
<li>Probably not many segfaults.</li>
<li>Every letter in the English alphabet has a variable or function named after
it.</li>
<li>Not a virus.</li>
<li>Runs on my machine.</li>
</ul>
<h3 id="tips">Tips</h3>
<ul>
<li>Adjust your terminal size for different experiences.</li>
<li>Run this program in a virtual console to immerse yourself in the game.</li>
</ul>
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<div id="inventory">
<h1 id="inventory-for-2020tsoj">Inventory for 2020/tsoj</h1>
</div>
<h2 id="primary-files">Primary files</h2>
<ul>
<li><a href="https://github.com/ioccc-src/winner/blob/master/2020/tsoj/prog.c">prog.c</a> - entry source code</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/2020/tsoj/Makefile">Makefile</a> - entry Makefile</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/2020/tsoj/prog.alt.c">prog.alt.c</a> - alternate source code</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/2020/tsoj/prog.orig.c">prog.orig.c</a> - original source code</li>
</ul>
<h2 id="secondary-files">Secondary files</h2>
<ul>
<li><a href="2020_tsoj.tar.bz2">2020_tsoj.tar.bz2</a> - download entry tarball</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/2020/tsoj/README.md">README.md</a> - markdown source for this web page</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/2020/tsoj/.entry.json">.entry.json</a> - entry summary and manifest in JSON</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/2020/tsoj/.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/2020/tsoj/.path">.path</a> - directory path from top level directory</li>
<li><a href="index.html">index.html</a> - this web page</li>
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