Cells need to have a placement in order to execute this function.
    </li> 
    
  
    <li>
	  <strong>#2</strong>: A function that takes one single Agent as argument. If some call to it returns false, forEachAgent() stops and does not process any other Agent. This function can optionally get a second argument with a positive number representing the position of the Agent in the vector of Agents.
    </li> 
    
  
  </span></ul>







<h3>Usage</h3>
<pre class="example"><code><span class="function">forEa