   </tr>
      </table>
  </td>
  <td class="mlabels-right">
<span class="mlabels"><span class="mlabel">virtual</span></span>  </td>
  </tr>
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<p>Jump Point Search(JPS) implementation. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">start</td><td>start node </td></tr>
    <tr><td class="paramname">goal</td><td>goal node </td></tr>
    <tr><td class="paramname">expand</td><td>containing the node been search during the p