te-system"><span>Coordinate system</span></a></h2><p>Robocode uses the Cartesian coordinate system, which means that the (0, 0) coordinate is in the bottom-left corner of the arena.</p><p><img src="/tank-royale/assets/coordinate-system-and-unit-circle-B2hU3-GC.svg" alt="Coordinate System and Rotational Direction System"></p><h2 id="rotational-direction-system" tabindex="-1"><a class="header-anchor" href="#rotational-direction-system"><span>Rotational direction system</span></a></h2><p>Robocode Tank Royale u