---
title: Tanks
---

<table class="figure">
  <caption>"Ant Lion" nails "Rabbit With Gun".</caption>
  <tr><td>
    <canvas id="antlion"></canvas>
    <script type="application/javascript" src="tanks.js"></script>
    <script type="application/javascript">
      antlion = [[300, 150, 50],[["#808080",[[50, 0.00, 0.00, 1],[70, 0.00, 0.87, 0],]], ["#ff8844",[[50, 0.00, 0.09, 1],[100, 4.68, 3.09, 1],[100, 1.61, 3.11, 1],[60, 0.00, 2.09, 0],[60, 2.09, 2.09, 0],[60, 4.19, 2.09, 0],[100, 0.00, 0.09, 1],]],],[[[75,75,5.78,2.71,0,0], [225,75,3.28,1.95,0,0],], [[77,73,5.78,3.02,0,0], [225,75,3.28,2.06,0,0],], [[81,71,5.78,3.14,0,0], [225,75,3.28,2.16,0,0],], [[87,68,5.78,3.14,0,0], [225,75,3.28,2.25,0,0],], [[93,64,5.78,3.14,0,0], [225,75,3.28,2.34,0,0],], [[99,61,5.78,3.14,0,0], [225,75,3.28,2.44,0,0],], [[105,57,5.78,3.14,0,0], [225,75,3.28,2.53,0,0],], [[112,54,5.78,3.14,0,0], [225,75,3.28,2.62,0,0],], [[118,51,5.78,3.14,0,0], [225,75,3.28,2.71,0,0],], [[124,47,5.78,3.14,0,0], [225,75,3.28,2.79,0,2],], [[130,44,5.78,3.14,0,0], [225,75,3.28,2.48,0,2],], [[136,40,5.78,3.14,0,0], [225,75,3.28,2.16,0,2],], [[142,37,5.78,3.14,0,0], [225,75,3.28,1.85,0,2],], [[148,34,5.78,3.14,0,0], [225,75,3.28,1.54,0,2],], [[154,30,5.78,3.14,0,0], [225,75,3.28,1.22,0,2],], [[160,28,5.90,3.14,0,0], [225,75,3.28,0.91,0,2],], [[167,25,5.90,3.14,0,0], [225,75,3.28,0.59,0,70],], [[173,23,5.90,3.14,0,0], [225,75,3.28,0.28,0,4],], [[180,20,5.90,3.14,0,0], [225,75,3.28,0.59,0,68],], [[186,17,5.90,3.14,0,0], [225,75,3.28,0.28,0,4],], [[193,15,5.90,3.14,0,0], [225,75,3.28,0.59,0,4],], [[199,12,5.90,3.14,0,0], [225,75,3.28,0.91,0,92],], [[206,10,5.90,3.14,0,0], [222,74,3.24,0.59,0,20],], [[212,7,5.90,3.14,0,0], [218,74,3.15,0.91,0,20],], [[218,4,5.78,3.14,0,0], [212,75,2.96,1.22,0,4],], [[224,1,5.78,3.14,0,0], [208,77,2.77,1.54,0,2],], [[230,147,5.78,3.14,0,0], [207,78,2.65,1.22,0,2],], [[236,144,5.78,3.14,0,0], [207,78,2.65,0.91,0,2],], [[242,140,5.78,3.14,0,0], [207,78,2.65,0.59,0,2],], [[248,137,5.78,3.14,0,0], [207,78,2.65,0.28,0,2],], [[254,134,5.78,3.14,0,0], [207,78,2.65,-0.03,0,2],], [[260,130,5.78,3.14,0,0], [207,78,2.65,-0.35,0,2],], [[267,127,5.78,3.14,0,0], [207,78,2.65,-0.66,0,2],], [[273,123,5.78,3.14,0,0], [207,78,2.65,-0.98,0,2],], [[279,120,5.78,3.14,0,0], [207,78,2.65,-1.29,0,2],], [[285,117,5.78,3.14,0,0], [207,78,2.65,-1.61,0,2],], [[291,113,5.78,3.14,0,0], [207,78,2.65,-1.92,0,2],], [[297,110,5.78,3.14,0,0], [207,78,2.65,-2.23,0,66],], [[3,106,5.78,3.14,0,0], [207,78,2.65,-1.92,0,2],], [[9,103,5.78,3.14,0,0], [207,78,2.65,-2.23,0,2],], [[16,100,5.78,3.14,0,0], [207,78,2.65,-2.55,0,0],], [[22,96,5.78,3.14,0,0], [207,78,2.65,-2.44,0,0],], [[28,93,5.78,3.14,0,0], [207,78,2.65,-2.32,0,0],], [[34,90,5.78,3.14,0,0], [207,78,2.65,-2.20,0,0],], [[40,86,5.78,3.14,0,0], [207,78,2.65,-2.08,0,0],], [[46,84,5.90,3.14,0,0], [207,78,2.65,-1.95,0,0],], [[52,81,5.90,3.14,0,0], [207,78,2.65,-1.85,0,0],], [[59,79,5.90,3.14,0,0], [207,78,2.65,-1.75,0,0],], [[65,76,5.90,3.14,0,0], [207,78,2.65,-1.64,0,0],], [[72,73,5.90,3.14,0,0], [207,78,2.65,-1.54,0,0],], [[78,71,5.90,3.14,0,0], [207,78,2.65,-1.43,0,0],], [[85,68,5.90,3.14,0,0], [207,78,2.65,-1.33,0,0],], [[91,66,5.90,3.14,0,0], [207,78,2.65,-1.20,0,0],], [[98,63,5.90,3.14,0,0], [207,78,2.65,-1.08,0,0],], [[104,60,5.90,3.14,0,0], [207,78,2.65,-0.96,0,4],], [[111,58,5.90,3.14,0,0], [207,78,2.65,-0.65,0,4],], [[117,56,6.03,3.14,0,0], [207,78,2.65,-0.33,0,4],], [[124,54,6.03,3.14,0,0], [207,78,2.65,-0.02,0,4],], [[130,53,6.03,3.14,0,0], [207,78,2.65,0.30,0,4],], [[137,51,6.03,3.14,0,0], [207,78,2.65,0.61,0,4],], [[144,49,6.03,3.14,0,0], [207,78,2.65,0.93,0,70],], [[151,47,6.03,3.14,0,0], [207,78,2.65,0.61,0,28],], [[157,45,6.03,3.14,0,0], [205,79,2.65,0.93,0,28],], [0, [201,81,2.56,1.24,1,85],],]];
      start("antlion", antlion);
    </script>
  </td></tr>
</table>

Dirtbags Tanks is a game in which you pit your coding abilities
against other hackers.  You write a program for your tank, set it out
on the battlefield, and watch how your program fares against tanks
written by other players.  Dirtbags Tanks is frequently a component of
[Dirtbags Capture The Flag](/ctf/).

Each tank has a turret-mounted laser, two treads, up to ten sensors,
and a diagnostic LED.  Sensors are used to detect when other tanks are
inside a given arc.  In the examples on this page, "triggered" sensors
turn black.  Most tanks will take some action if a sensor is
triggered, such as changing speed of the treads, turning the turret,
or firing.

Tanks are programmed in Forf, a stack-based language similar to
PostScript.


Other Versions
--------------

Everybody loves tanks!
If you've made a port or done something fun with it,
please let me know and I'll link it here!

* [Class Lab](https://github.com/Arctem/nmt_python_labs/tree/master/labs/project) at New Mexico Tech, by Russell White


Author
------

Neale Pickett <neale@woozle.org>