we do with it? Dear reader, this is the place where our guide ends and your imagination starts. What can you do with 2 circles, one pulsating and one moving?</p>
<p>Perhaps, you can check if the two circles intersect, and if so, draw 2 extra points or a line connecting the intersection points. It might look like this:</p>
<pre><code class="language-javascript">animate: function ( time, fs, context ) {
    // previous code omitted...

    var hits = another.intersectCircle( dot );
    if (hits.length &gt; 0)