<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>I don't think so (as of v2.x anyway) but you could pre-create a healthy number and make them visible as needed.<br><br><div>Mark L. Miller, Ph.D.</div><div>President and Executive Director</div><div><a href="http://Learningtech.org">Learningtech.org</a></div><div><a href="mailto:mlmiller@learningtech.org">mlmiller@learningtech.org</a></div><div>650-598-0105 x203</div></div><div><br>On Jul 26, 2013, at 7:26 AM, André Gustavo Schaeffer <<a href="mailto:andre_schaeffer@yahoo.com.br">andre_schaeffer@yahoo.com.br</a>> wrote:<br><br></div><blockquote type="cite"><div>
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<div><font face="Times New Roman"><span class="hps">Hi all!</span></font></div>
<div><font face="Times New Roman"><span class="hps"></span></font> </div>
<div><font face="Times New Roman"><span class="hps">Is</span> it <span class="hps">possible to make</span> <span class="hps">the creation</span> <span class="hps">of</span> <span class="hps">dynamic</span> <span class="hps">objects in
an</span> Alice <span class="hps">world</span><span>?</span> </font></div>
<div><font face="Times New Roman"><span class="hps">For
example</span><span>,</span> <span class="hps">in a
simulation</span><span>,</span> <span class="hps">within a</span> <span class="hps">loop</span><span>, I want</span> <span class="hps">a car</span> <span class="hps">pass</span> <span class="hps">every 5</span> <span class="hps">seconds
</span>(or variable period of time) <span class="hps">through the</span> <span class="hps">screen.</span></font></div>
<div><font face="Times New Roman"><span class="hps">For each one, if they can’t go
ahead due some reason, they will have to wait in a queue (a <span class="hps">street intersection</span> <span class="hps">with a</span> <span class="hps">traffic light, for example).</span></span> </font></div>
<div><font face="Times New Roman">But I <span class="hps">don’t know</span> <span class="hps">how long the</span> <span class="hps">simulation</span> <span class="hps">will take</span><span>.</span> </font></div>
<div><font face="Times New Roman"><span class="hps">So</span><span>,</span> <span class="hps">I</span> <span class="hps">don’t know</span> <span class="hps">how many
cars</span> to <span class="hps">drag to</span> <span class="hps">setup</span> <span class="hps">the world</span><span>.</span> </font></div>
<div><font face="Times New Roman"><span class="hps">In</span> <span class="hps">Java</span> <span class="hps">there are</span> <span class="hps">methods</span> <span class="hps">for</span> <span class="hps">dynamic</span> <span class="hps">creation</span> <span class="hps">and
destruction</span> <span class="hps">of objects</span><span>,</span> <span class="hps">dialog boxes</span><span>,</span> <span class="hps">etc.</span><span>.</span> </font></div>
<div><font face="Times New Roman"><span class="hps">Is it possible to</span> <span class="hps">do this in</span> <span class="hps">Alice (version 2 or 3)
?</span><br></font></div>
<div><font face="Times New Roman"><span class="hps">Thank
you</span><span>!</span></font></div>
<div style="FONT-SIZE: 12pt; FONT-FAMILY: 'Arial'; COLOR: #000000"><br>Andre
Gustavo
Schaeffer<br><a href="mailto:andre_schaeffer@yahoo.com.br">andre_schaeffer@yahoo.com.br</a><br><a href="https://sites.google.com/site/andregustavoschaeffer">https://sites.google.com/site/andregustavoschaeffer</a><br></div></div></div>
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