alice-teacher Conditional Loops

[Frank Hulsman]

Alice 2.x?   That condition is looking for a Boolean (true / false) value.  What you are trying to drag in returns a number (distance).  The solution would be to first drag in a condition (World, Functions, Math, A > B).  Place numbers initially into A and B (1, 2), then replace one  with the function you want use ("goldfish distance in front of shark") and then how far in front....
 
Frank Hulsman
St. Xavier High School
Louisville, Ky

From: Ron Guillemette <rgilmet123 at gmail.com>
To: Alice List <alice-teachers at lists.andrew.cmu.edu> 
Sent: Monday, January 27, 2014 9:00 AM
Subject: alice-teacher Conditional Loops



I'm not sure what I am doing wrong, but I am trying to do the Chase scene in Chapter 7 of the Programming with Alice book using While in the chase method.  I am unable to drag the "goldfish distance in front of shark" function into the "true" condition of the while.  I keep getting a red outline around the command.



Thanks for any help.

Ron. Guillemette 

Computer Technology and Game Design

The Regional Career & Tech Center @ Coventry High
40 Reservoir Road, Coventry, RI 02816
401-822-9499 ext 287
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