gmane.comp.lang.smalltalk.squeak.beginners

Change background color of an element in aPluggableListMorph

Frank Blechschmidt — 2013-04-29T16:34:23

Hi,

is it possible to change the background color of an element in a
PluggableListMorph? How?

Best regards
Frank
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Re: [ANN] Four new OLPC Games by the Software ArchitectureGroup

karl ramberg — 2013-04-22T04:50:04

Hi
Thank you guys for publishing some very nice games.

Do yo have any feedback about what the common problems with developing
games for Squeak is ?
Are there any changes to the image that would make the game making process
easier ?

Karl


On Tue, Apr 16, 2013 at 5:22 PM, Michael Perscheid <
michaelperscheid< at >googlemail.com> wrote:

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[ANN] Four new OLPC Games by the Software ArchitectureGroup

Michael Perscheid — 2013-04-16T15:22:32

Hi all,

we'd like to announce that we published four new games for the OLPC/XO laptop (also available 
for Standard Squeak, MIT license). They have been developed by students in the last semesters 
of our software architecture lecture (Hasso-Plattner-Institute, University of Potsdam).

http://www.hpi.uni-potsdam.de/swa/projects/olpc/index.html
(or: http://www.hpi.uni-potsdam.de/hirschfeld/projects/olpc/index.html)

In particular, we thank the following students for their course work and Matthias Springer for 
porting the projects to the XO. 

BroBreakout
Fabio Niephaus, Daniel Werner, Philipp Otto, Frank Blechschmidt
PetConnect
Jaqueline Pollak, Daniel Neuschaefer-Rube, Jakob Reschke, Judith Hartmann
BDBoulderDash
Johannes Koch, Tim Friedrich, Johannes Villmow, Felix Wolff
SpaceCleanup
Kai Fabian, Dominik Moritz, Malte Swart, Matthias Springer

More games are coming soon...

Best,
Michael

---
Michael Perscheid
michaelperscheid< at >googlemail.com

http://www.michaelperscheid.de/

Need help for gsoc 2013

Rahul Gandhi — 2013-04-13T10:02:24

hello i'm a student for gsoc 2013 and i'm looking for a mentor, could anyone
give me some directions what to do?
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Possible to read in postscript file?

Open Slate — 2013-03-21T22:22:07

 I am thinking about converting an application I wrote from tcl/tk to
Squeak. The app must allow the user to enter and edit formatted text -- a
TextMorph works fine for this. In the tcl/tk version I save each entry to
an individual file, marked up with formatting commands I created. The tk
text widget handles formatted text, it just doesn't include methods for
dumping and restoring the format tags. A Squeak TextMorph can save itself
to a postscript file. Can it read one of these files and recreate the
marked-up text?

On a bigger picture, not sure if I should follow this model or just save
everything in the image. Disk space is disk space either way. If the tool
is set up in its own project space it is relatively easy to file out,
right? And back, say for back-up purposes? Thoughts?

Re: Balloon3D Support

Bert Freudenberg — 2013-03-18T12:30:11

On 2013-03-18, at 02:26, "David T. Lewis" <lewis< at >mail.msen.com> wrote:


The B3DScanner class is only used when trying to simulate the B3D plugin. That's why it is only in the plugin source package. You want to use the compiled plugin, not the source version of it, which would be much too slow.

You need at least the Squeak3D plugin, and optionally the B3DAcceleratorPlugin.

The B3D morphs are not written to anticipate a missing Squeak3D plugin, which is supposed to ship with all Squeak VMs. 

If the plugin is available it does work, I just tried:



However, most people use OpenGL for 3D in Squeak nowadays, see

http://www.squeaksource.com/CroquetGL.html

- Bert -

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Re: Balloon3D Support

David T. Lewis — 2013-03-18T01:26:56

Hi Joseph,

I think that B3DScanner is in package Balloon3D-Plugins, and that does not
seem to be listed in the Balloon3D-1.1.3.mcm configuration. Try loading
Balloon3D-Plugins also, and see if that helps. I expect that you will get
some warning messages when you do this, because Balloon3D-Plugins depends
on the VMMaker packages, but you can ignore these warnings for now.

I suggest that you ask questions about this on the main squeak-dev mailing
list. Unfortunately the author of Balloon3D is recently deceased, but many
people on the squeak-dev list are familiar with (and greatly admire) his
work, so I'm sure you will be able to get help there.

Dave

Balloon3D Support

Joseph D. Kulisics — 2013-03-16T02:26:45

Hi,

I have been trying to get Balloon3D working on a linux installation of Squeak. I'm using the 4.10.2-2614 VM from the UNIX Squeak site. I am also using the Squeak4.4-12327 updated to 4.4-12333 image. After I install the Balloon3D-1.1.3.mcm package through Monticello from http://www.squeaksource.com/Balloon3D, the package appears to load correctly, but none of the Balloon3D morphs work. The all fail to launch because the B3DScanner class does not exist. I've searched the web for a day, and I can't find any information about the state of the Balloon3D package. Is it still supported? If it's supported, where is the B3DScanner class? Is there another source for the package? Thanks,

  Joseph Kulisics

_____________________________________________________

In this world, shipmates, sin that pays its way can travel freely, and without a passport; whereas Virtue, if a pauper, is stopped at all frontiers.

        Moby Dick, Herman Melville


HOME PAGE URL:  http://www.overthetransom.net/kulisics/
Joseph D. Kuli

Re: Input and output of morphic text

Bert Freudenberg — 2013-03-14T15:49:24


I like a slightly different proof even better, because it doesn't need to rotate the shapes:

http://www.youtube.com/watch?v=md5UBv3pVBE

- Bert -

Re: Input and output of morphic text

Casey Ransberger — 2013-03-14T02:06:27

Speaking of Pythagoras, Alan Kay demos a visual proof for the theorem
that's super easy for just about anyone to understand right away using
Etoys in his TED talk, which is worth a look:

http://www.ted.com/talks/alan_kay_shares_a_powerful_idea_about_ideas.html

Re: Input and output of morphic text

Marshall Hampton — 2013-03-13T16:30:35

Ahh, thanks, that is perfect.  Exactly what I needed.  It is extremely
helpful to see screencasts with Squeak.  I can recreate this with the
Squeak-4.3 that we are using, but maybe I'll switch to the etoys version.

Again many thanks for the quick and useful responses.

-Marshall

On Wed, Mar 13, 2013 at 7:40 AM, Bert Freudenberg <bert< at >freudenbergs.de>wrote:

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Re: Input and output of morphic text

Sean P. DeNigris — 2013-03-13T15:51:29

Bert Freudenberg wrote

Gotta start somewhere ;)



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Re: Re: Input and output of morphic text

Bert Freudenberg — 2013-03-13T15:22:21

On 2013-03-13, at 15:54, "Sean P. DeNigris" <sean< at >clipperadams.com> wrote:



... not to forget the more than 1 billion school-aged children world-wide.

- Bert -

Re: Input and output of morphic text

Sean P. DeNigris — 2013-03-13T14:54:36

Bert Freudenberg wrote

Really great, Bert. eToys is wonderful :)



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Re: Input and output of morphic text

Sean P. DeNigris — 2013-03-13T14:54:02

Marshall Hampton wrote

Marshall, that is beautiful! I'm touched by your dedication and wisdom. I
especially love that you let her choose the language, and her rationale for
choosing Squeak. Reading your post, I feel the excitement of exploration,
falling down the rabbit hole...

Please ask any other questions. What you're doing is so important. Now if we
can get this to the 50 million school-aged children in the U.S., we'll be
all set ;)

Sean



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Re: Input and output of morphic text

Bert Freudenberg — 2013-03-13T12:40:39

See the "Making Of". The second time it only took me 4 minutes :)

http://www.youtube.com/watch?v=7Kd5YxOp73E

And please excuse my mumbling ...

- Bert -

On 2013-03-13, at 13:33, Marshall Hampton <hamptonio< at >gmail.com> wrote:

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Re: Input and output of morphic text

Marshall Hampton — 2013-03-13T12:33:38

Thanks, that is helpful.  I'm still having some trouble getting used to the
environment but I think we can figure it out.  One thing I was wondering is
if an object, such as the triangle in your program, can create text and
display it.  Or perhaps some separate text object is needed?

Thanks again for the quick response.

-Marshall

On Wed, Mar 13, 2013 at 7:15 AM, Bert Freudenberg <bert< at >freudenbergs.de>wrote:

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Re: Input and output of morphic text

Bert Freudenberg — 2013-03-13T12:15:12


Here is how to do it in Etoys (using the Squeakland version from http://squeakland.org/ ):

http://www.youtube.com/watch?v=vfxNsYz52QA

Took maybe 10 minutes, and that's including the graphical display of the triangle :)

- Bert -

GSoC (was: Thanks for the fantastic ideas.)

Bert Freudenberg — 2013-03-13T10:04:51

Would any of the idea submitters like a student to work on them? There is another Google Summer of Code coming up, and we always need project ideas. In a previous GSoC, Ricardo Moran from Argentina made some awesome new Etoys tools. So please, send your idea to Janko, too!

- Bert -

Am 13.03.2013 um 09:30 schrieb Casey Ransberger <casey.obrien.r< at >gmail.com>:

Thanks for the fantastic ideas.

Casey Ransberger — 2013-03-13T08:30:51

I knew I was going to be overwhelmed and blown away when I asked the
community for suggestions.

I'm at the point where I'm still reading ideas people wrote to share with
me, and I have a few favorites that I'm investigating, but I'm gonna have
to close the flood gates! Before my brain explodes, SPLAT!

FWIW, some of the best ideas came off list from people who's names I didn't
know. I'd like to give extra thanks to these folks; it's been great to meet
you and hear your wonderful thoughts. I'd love to see this set post on the
list(s) more.

Also: sorry about spamming the list with the thread. Hopefully I can make
it worth whatever bandwidth inconvenience I may have caused.

Onward and such! (Up.)


Casey

Input and output of morphic text

Marshall Hampton — 2013-03-13T01:01:30

Hi,

I am new to Squeak and Smalltalk.  After reading a few tutorials I am very
intrigued and impressed.  Brief background for me: I am a mathematician, I
am fairly skilled in Python, and I have worked at to varying degrees with
C, C++, Java, Pascal, Basic, Fortran,  Javascript, Ruby, R, and Mathematica.

I am homeschooling my daughter, who is 9.  She is quite proficient at
Scratch.  A week ago I decided to give her a very brief tour of other
programming languages by having her write a "Hello Pythagoras" program in
each language.  This program should print "Hello Pythagoras" somehow, and
then ask the user for two inputs (call them A and B).  It should then print
sqrt(a^2 + b^2).

For her third language she chose Squeak, since she knew that Scratch was
written in it.  I would like to have her write the "Hello Pythagoras"
program using Morphic objects, in a visually appealing way.  So far I have
had some trouble finding a tutorial that covers relevant information.  I am
sure I can figure this out by poking aro