Questions on E-Toy Scripting of Alice (3-D)

Scott Wallace scott.wallace at squeakland.org
Fri Sep 7 19:06:38 PDT 2001


Hi, Mark,

Drop some numeric-valued tile (such as, say, "WhiteRabbit's heading") 
into the TEST pane.  Because a TEST pane requires a boolean-valued 
expression, this will magically get expanded into a related 
boolean-valued expression -- in this case "WhiteRabbit's heading < 
5".   Now it should be straightforward to edit that into the 
expression you really want.

   -- Scott


At 3:14 PM -0400 9/7/01, Mark Guzdial wrote:
>>  > - I was trying to figure out how to make one object respond to
>>>  another one being close.  I wanted to make a sound occur when the
>>>  WhiteRabbit got close to the banana in my world.  I found that I
>>>  could create a tile phrase WhiteRabbit distanceTo: banana, but this
>>>  returned a number.  I couldn't figure out how to set up a test with
>>>  this, e.g., when the distance to the banana is less than 0.5 meter.
>>
>>You need to get a "Test" tile out of the scriptor. Then you can construct
>>your test as follows:
>>	Test (WhiteRabbit distanceTo: banana) < 0.5
>>		Yes "Do something"
>>		No "Do something else"
>
>I got the Test tile, but I couldn't figure out how to get the "<". 
>Where do I get one of those in the tiling world?
>
>Thanks, Michael!
>
>Mark
>
>--------------------------
>Mark Guzdial : Georgia Tech : College of Computing : Atlanta, GA 30332-0280
>Associate Professor - Learning Sciences & Technologies.
>Collaborative Software Lab - http://coweb.cc.gatech.edu/csl/
>(404) 894-5618 : Fax (404) 894-0673 : guzdial at cc.gatech.edu
>http://www.cc.gatech.edu/gvu/people/Faculty/Mark.Guzdial.html




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