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<p>An Introduction to Alice 2.2 by Charles W. Herbert has a nice piece of code in Chapter 10</p>
<p><br>
</p>
<p>Basically you set up a "While the world is running" event that calls your collision detection method.</p>
<p>In that particular chapter there is a penguin that can fall through a hole, collide with a snowbank, or reach a flag (Victory!)</p>
<p>Basically the detection code checks each "goal" in turn. <br>
</p>
<p>For the list of holes:</p>
<p> for all the holes together</p>
<p> If penguin is within 1 meter of hole (where the holes are 1 meter radius)</p>
<p> penguin move down 5 meters<br>
etc.</p>
<p>For the snowbank which is defined as a 10.5 meter circle with center at the middle</p>
<p> if penguin is at least 10.5 meters away from snowbank </p>
<p> penguin move toward snowbank 0.25 meters</p>
<p> etc<br>
</p>
for the flagpole<br>
if penguin distance to flagpole <= 1 meter<br>
do victory stuff.<br>
<br>
where the if parts are the first 3 items in the penguin's function tab.<br>
<br>
Hope this helps<br>
You can email me at robert.durtschi@gcsu.edu if you have any further questions<br>
<br>
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From: alice-teachers <alice-teachers-bounces+mrgrog=outlook.com@lists.andrew.cmu.edu> on behalf of Nichols, Denise via alice-teachers <alice-teachers@lists.andrew.cmu.edu><br>
Sent: Wednesday, November 9, 2016 10:08 AM<br>
To: alice-teachers@lists.andrew.cmu.edu<br>
Subject: alice-teacher Collision Detection in Alice 2<br>
<br>
Hello all,<br>
Next month, I am hoping to have my class to the point where they can make simple games in Alice 2. However, last year, we had a lot of trouble with collision detection in Alice 2.4. Does anyone have any suggestions and/or materials for covering this topic?<br>
Denise Nichols<br>
Computer Teacher<br>
York Catholic High School<br>
dnichols@yorkcatholic.org<mailto:dnichols@yorkcatholic.org><br>
717-846-8871<br>
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End of alice-teachers Digest, Vol 74, Issue 5<br>
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