iv class="line">  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (objY &lt; objSize / 2 +TOPMARGIN ) </div>
<div class="line">  {</div>
<div class="line">    objDir = 2 * PI - objDir;    </div>
<div class="line">    playSoundPong();</div>
<div class="line">  }</div>
<div class="line">  </div>
<div class="line">  <span class="keywordtype">double</span> sdir = sin(objDir);</div>
<div class="line"> </div>
<div class="line">  <span class="comment">// check paddle collision  </span></d