alice-teacher How do you import objects from 2.2 or 2.3 gallery?

[Choe, Yoonsun Ms. CIV OSD/DoDEA-Pacific]

One of the tutorial made by Duke shows red dragon in the world, but the
instruction calls for brown and instead of the red one.
My students and I want to know way to expand our gallery in 2.0.

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Subject: alice-teachers Digest, Vol 26, Issue 25

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Today's Topics:

   1.  Printing code for objects in folders (David Fenton)
   2.  Alice 2.3 bug with deleting an object on a list
      (Steven Huss-Lederman)
   3. Re:  Printing code for objects in folders (Don Slater)
   4. Re:  Alice 2.3 bug with deleting an object on a list (Don Slater)
   5.  When are clipboards like rabbits? (Don Slater)
   6.  Updating 2.2 to 2.3 (Daryl Detrick)


----------------------------------------------------------------------

Message: 1
Date: Thu, 27 Sep 2012 08:27:48 +1000
From: David Fenton <fenton at fdn.uq.edu.au>
Subject: alice-teacher Printing code for objects in folders
To: "alice-teachers at lists.andrew.cmu.edu"
	<alice-teachers at lists.andrew.cmu.edu>
Message-ID:
	
<5194E6AAB6C7334E938662763813B3F25904F3482B at hermes.fdn.uq.edu.au.local>
	
Content-Type: text/plain; charset="us-ascii"

G'day,

I think I may have found a bug in Alice 2.2.

I encourage my students to put non-interacting objects into folders in
the object tree.
That works fine until one of my smart-alecs decided he would put
interacting objects into folders too. He had methods and functions
written for these objects. 

So when he uses 'export code for printing', none of the methods for
objects inside folders, are visible to be checked off for printing.
He solved the problem by taking the objects out of the folders,
exporting his code, then not re-saving his Alice program.

Any ideas please?

Cheers
David Fenton
Coordinator of Information Technology Programmes University of
Queensland Foundation Year Brisbane, Australia.

------------------------------

Message: 2
Date: Wed, 26 Sep 2012 13:50:26 -0500
From: Steven Huss-Lederman <huss at beloit.edu>
Subject: alice-teacher Alice 2.3 bug with deleting an object on a list
To: alice-teachers at lists.andrew.cmu.edu
Message-ID: <821A894C-EC0F-46A6-BEFA-4CECF22E9C14 at beloit.edu>
Content-Type: text/plain; charset=us-ascii

Hi,

Just in case others run into the same issue and to make sure it isn't
something I'm doing wrong, I'll report a problem with Alice 2.3 that has
caused issues for several students.  If you have an object on a list and
you delete the object then Alice has an unknown error that won't go away
(even after you say ok).  The only way we have found to get rid of it is
to terminate the Alice process (force kill) in which you lose any
unsaved work.  This happens on Mac OS 10.6.  I have not taken the time
to test on Windows 7 or Alice 2.2 (to see if it is an old issue).  I can
send in a world to demonstrate but simply put an object in a world,
create a world Object list, add the object, save the list, then delete
the item.

Steve



------------------------------

Message: 3
Date: Thu, 27 Sep 2012 16:36:54 -0400
From: Don Slater <dslater at andrew.cmu.edu>
Subject: Re: alice-teacher Printing code for objects in folders
To: Alice educators <alice-teachers at lists.andrew.cmu.edu>
Message-ID: <673C0DD4-1BA2-4C04-9542-983A2A56846C at andrew.cmu.edu>
Content-Type: text/plain; charset=us-ascii

This is interesting, and something we will look into.

Thank you for the report.

All the best,
Don Slater

On Sep 26, 2012, at 6:27 PM, David Fenton <fenton at fdn.uq.edu.au> wrote:

> G'day,
> 
> I think I may have found a bug in Alice 2.2.
> 
> I encourage my students to put non-interacting objects into folders in
the object tree.
> That works fine until one of my smart-alecs decided he would put
interacting objects into folders too. He had methods and functions
written for these objects. 
> 
> So when he uses 'export code for printing', none of the methods for
objects inside folders, are visible to be checked off for printing.
> He solved the problem by taking the objects out of the folders,
exporting his code, then not re-saving his Alice program.
> 
> Any ideas please?
> 
> Cheers
> David Fenton
> Coordinator of Information Technology Programmes University of 
> Queensland Foundation Year Brisbane, Australia.
> _______________________________________________
> alice-teachers mailing list
> alice-teachers at lists.andrew.cmu.edu
> https://lists.andrew.cmu.edu/mailman/listinfo/alice-teachers



------------------------------

Message: 4
Date: Thu, 27 Sep 2012 16:52:27 -0400
From: Don Slater <dslater at andrew.cmu.edu>
Subject: Re: alice-teacher Alice 2.3 bug with deleting an object on a
	list
To: Alice educators <alice-teachers at lists.andrew.cmu.edu>
Message-ID: <69EAF251-1F1D-4467-BD19-5895D7F4765E at andrew.cmu.edu>
Content-Type: text/plain; charset=windows-1252

This is a known problem in Alice and there is no easy fix on our end, as
it is more of a programmer error? Before deleting an object from the
Alice world, a student would go through the code and delete all commands
that are related to that object. This is also true for lists. The list
element should be removed or set to a different object value, because
once an object is deleted, Alice has no easy way to backtrack through
all the code and find every place that object was moved. In fact, Alice
has no way of knowing which element points to which object. 

The pointer from the list position to the object is a one-way path. The
list knows that its 3rd element may be pointing to the dragon, but the
dragon does not know that it is being pointed to by the 3rd element in
the list. And so when the dragon is deleted, it cannot tell the list
that its 3rd element should not point to it anymore.

Normally, when an object is deleted from an Alice world that is still
being used in some way, a dialog box appears. listing all the places
that object is being used. But the user is given the option to have all
those references set to none, with the understanding that the user is
taking responsibility for finding those <none> references, which will
appear in red, and deleting the command, or changing the object using
the command, from dragon to knight, for example.

I may be wrong, but I do not know that Alice can go back and set the
list reference to <none> in red. And from your description, it sounds
like Alice freezes up even before the user has a chance to go back to
the list and reset the element. That is a problem that we can look at.

But students should be warned to be very careful about deleting objects
from a world, without first being sure of all the possible side-effects.

All the best,
Don Slater

On Sep 26, 2012, at 2:50 PM, Steven Huss-Lederman <huss at beloit.edu>
wrote:

> Hi,
> 
> Just in case others run into the same issue and to make sure it isn't
something I'm doing wrong, I'll report a problem with Alice 2.3 that has
caused issues for several students.  If you have an object on a list and
you delete the object then Alice has an unknown error that won't go away
(even after you say ok).  The only way we have found to get rid of it is
to terminate the Alice process (force kill) in which you lose any
unsaved work.  This happens on Mac OS 10.6.  I have not taken the time
to test on Windows 7 or Alice 2.2 (to see if it is an old issue).  I can
send in a world to demonstrate but simply put an object in a world,
create a world Object list, add the object, save the list, then delete
the item.
> 
> Steve
> 
> _______________________________________________
> alice-teachers mailing list
> alice-teachers at lists.andrew.cmu.edu
> https://lists.andrew.cmu.edu/mailman/listinfo/alice-teachers
> 



------------------------------

Message: 5
Date: Thu, 27 Sep 2012 17:42:33 -0400
From: Don Slater <dslater at andrew.cmu.edu>
Subject: alice-teacher When are clipboards like rabbits?
To: Alice Teachers <alice-teachers at lists.andrew.cmu.edu>
Cc: Aik Min <aik_min at yahoo.com>
Message-ID: <FDD84480-8A9B-4737-B116-68A20658B169 at andrew.cmu.edu>
Content-Type: text/plain; charset=us-ascii

A question had been posed about the increasing numbers of clipboards in
Alice. It seems that when one creates a new world in Alice, and
increases the number of clipboards in Preferences -> Seldom Used, the
right thing happens, initially. But if in the same session (in other
words, without quitting Alice), if the user creates a new world, the
number of clipboards available in that world becomes by (number of
clipboards from the previous world + number of clipboards from the first
world - 1).

In other words, I start a world, and increase the number of available
clipboards to 4. I finish my work in that world, and decide to start a
new world, or open a previously saved world, I will still have my four
clipboards, but then Alice automatically gives me three more clipboards,
so in this world I now have 7 clipboards. I then decide to open a third
world, Alice gives me three more clipboards, so now I will have 10.

No idea why Alice is doing this, but we will certainly look at it.

Thank you to Karen Christy for pointing this out.

Later,
Don Slater




------------------------------

Message: 6
Date: Fri, 28 Sep 2012 09:06:44 -0400
From: Daryl Detrick <DetrickD at warrenhills.org>
Subject: alice-teacher Updating 2.2 to 2.3
To: Alice educators <alice-teachers at lists.andrew.cmu.edu>
Message-ID: <7BE611D32DC77844B01A540996A602DC0286222A420B at mail>
Content-Type: text/plain; charset="us-ascii"

Don,

Looking at the instructions on alice.org, it seems to indicate that if
we are using Alice 2.2 and click on update software, it will update to
2.3.  When we tried the update it still was 2.2.  Did I misunderstand
the website information or is there something I did wrong?  If we go to
2.3, do we need to uninstall 2.2?

Thanks
Daryl

------------------------------

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