alice-teacher Chapter 7 issue with integer function in Boolean if/while

[Robert Durtschi]

I ran into almost the exact same problem.
The compare  function Will accept and adjust for an integer variable but not an integer function.  What we did in my classes is to create a temporary integer variable (FUBAR - Fouled Up Beyond All Recognition, has an old an honored tradition), Drag it down into the while true..., then drag the integer function on top of the temporary integer variable.

Best
Bob Durtschi
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Message: 2
Date: Mon, 27 Jan 2014 09:00:08 -0500
From: Ron Guillemette <rgilmet123 at gmail.com>
Subject: alice-teacher Conditional Loops
To: Alice List <alice-teachers at lists.andrew.cmu.edu>
Message-ID:
        <CAByJi1uoxB-KuVt1ohQ60nmJQOLfp-RnnAO4-P64fo6Az1JEOg at mail.gmail.com>
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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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Message: 3
Date: Mon, 27 Jan 2014 06:09:44 -0800 (PST)
From: Frank Hulsman <frankhulsman at yahoo.com>
Subject: Re: alice-teacher Conditional Loops
To: Alice educators <alice-teachers at lists.andrew.cmu.edu>
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        <1390831784.15942.YahooMailNeo at web161306.mail.bf1.yahoo.com>
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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