etoys-dev November 2007

etoys-dev@lists.squeakfoundation.org

29 participants
50 discussions

[Etoys] [Enhancement]GraphMorphEditing
by Karl 19 Nov '07

19 Nov '07

"Change Set: GraphMorphEditing Date: 19 November 2007 Author: Karl Ramberg Adds shift drag selection to GraphMorph. Adds Copy, Cut and Paste to GraphMorph menu."

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[Etoys] OLPC mass production started
by Bert Freudenberg 19 Nov '07

19 Nov '07

Picture of the first "XO-1" children's laptop coming down Quanta's production line: http://wiki.laptop.org/go/Image:StartOfMP.jpg And every single machine comes with Squeak/Etoys pre-installed - a big thanks to everyone involved directly and indirectly! - Bert -

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Re: [Etoys] How to distribute amd install MO for Apps
by Bert Freudenberg 17 Nov '07

17 Nov '07

On Nov 17, 2007, at 9:10 , Hilaire Fernandes wrote: > 2007/11/16, Bert Freudenberg <bert(a)freudenbergs.de>: >> You would need to hack the startup script and include the image in >> your .xo. I did that for the OLE Nepal image: >> >> http://lists.laptop.org/pipermail/etoys/2007-November/001394.html > > So is tooking the etoys.xo bundle, uncompress it, update the image > with drgeo, will do the trick? Eventually I could do a math wise image > and integrate BotsInc aswell. No. As I wrote, look at the EPaati bundle I made. It contains an image, and I adapted the startup scripts to use that image. The Etoys bundle contains *only* the scripts, not the image or the example projects. It relies on the etoys version installed via rpm. This is to allow sharing of that image between bundles, because bundles can only depend on system-installed files, not on files in other bundles. >> However, it would be extremely inefficient space-wise to do that as >> 99% of the image would be identical to the etoys image and you're >> simply wasting 15 MB of space. > > Obviously. > But worst, I think OLPC has a very hard time regarding its > pedagogical value. > May be it could be acceptable where there are no previous computer > experience but it could be rejected in other place where there a > previous experience and clear expectation about computer use in > education. I'm not quite sure what you mean here, but I agree that OLPC has its self-made problems coming across as an education project. But fortunately, there are people like you who have this vision and are doing something about it, and this is indeed appreciated by OLPC. - Bert -

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[Etoys] A "Clock" project in Etoys
by Yoshiki Ohshima 16 Nov '07

16 Nov '07

Hello, After having a conversation with one of my colleague (Ian), I couldn't resist, and I happened to have some spare time while helping a TA as an unofficial TA. So I made a Clock project in Etoys. The file is available at: http://dev.laptop.org/~yoshiki/etoys/Clock.004.pr One way or another, please load it onto Etoys (on a non-XO environment, drag-and-drop from Finder or Explorer. On XO, access the URL with browse, copy it to a USB memory and resume it from Journal, or hit Alt-, for "Show Source" -> 'open...' -> 'file list...' and navigate to the .pr file). After it starts, don't forget to move the mouse around! The fun thing about it is that only non-trivial thing the user needs is a text version of Clock that is available in the Object Catalog. Everything else is built with simple Text, Ellipse, Rectangle, and Star. (The digital clock uses another pre-made widget.) The essense of rotating the analog clock hands is three equations each of which decides the angle of a hand. The script shown in the project has such three lines. In the other words, kids don't have to know any more magic than setting the heading of objects. (The script has other two lines, but these are used to provide some effect for the digital clock.) You can change the equations dynamically to make, for example, the clock goes backward. The variables are accessible to the user, so learning about the clock, such as angles and rate, etc. can be done from this project. -- Yoshiki There is a bug. If the digits in the analog clock is truncated, press "resetResult" button.

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[Etoys] Etoys-notify list
by Bert Freudenberg 16 Nov '07

16 Nov '07

Hi folks, we have a new read-only mailing list which gets automatic notifications for etoys bug reports, and hopefully more in the future. To stay up-to-date on the bug front please subscribe at: http://lists.laptop.org/listinfo/etoys-notify Discussion about items posted there should be on this list here. The etoys-notify list is o keep noise down for those less interested in the day-to-day development. As you can see in the list archives there are quite a few notices already. - Bert -

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[Etoys] squeaky tales and waveplace vision
by Timothy Falconer 16 Nov '07

16 Nov '07

Hi all, Today I posted my twentieth Etoys tutorial in the Squeaky Tales series, bringing the total to five hours of ten planned. http://waveplace.com/movies/ Each fifteen-minute screencast forms the basis for an hour of hands- on instruction with a child, with the mentor first presenting the concepts in their own fashion, then leading the class for the remainder of the time. The videos themselves are aimed at the mentor, not the students, though I suspect older students could watch the videos on their own. Now half done, I've been spending time on techniques to manage complexity. Just like a real software project, the beginning is fresh with clean white designs, but midway through it's a mangled mess of coalescing code. I also posted a 25 minute video of me talking into a camera, explaining the Waveplace vision. http://waveplace.com/vision/ I've had the same conversation about two hundred times in the last six months, so I figured it'd be good to get the rap down on tape. The video breaks down into ten minutes on education, five minutes on the XO, and ten minutes on Waveplace. Let me know if you find it helpful. Timothy

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Re: [Etoys] [Olpc-open] squeaky tales and waveplace vision
by Tony Forster 16 Nov '07

16 Nov '07

> The problem with this kind of "wait", and indeed the reason why such a > "wait" tile is not offered in the Viewer already, is that it paralyzes > the rest of Squeak, including the running of all other scripts, for > the duration of the "wait". Thus, it's usually not acceptable within > a multi-player simulation. It is difficult to decide what to include. There are many features which are missing compared to, for example, Game Maker. This includes a bounce off other objects (except the playfield and world), variables for Cartesian components of speed and a range of triggering events for scripts. The test for inclusion should be whether it enhances etoys as a learning environment. Learning what? I would hope that the things that can be learned include vectors, Cartesian coordinates, negative number, rate, kinematics, boolean logic, problem solving. Would a "wait" tile enhance learning? If you take a Papert Constructionist view, etoys should be a rich sandpit for building "powerful ideas" because kids need to build their own understandings in their own ways. My inclination is that a wait tile would enrich the sandpit , would allow kids to construct, in their own ways, their games and conceptual understandings. That holds true if the wait tile isn't particularly useful in most cases. Tony Forster, Computer Game Design, Programming, Multimedia and Mathematics Cluster. http://schoolgamemaker.rupert.id.au/

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[Etoys] First use of OLPC feedback (bugs,suggestions,questions)
by stephane ducasse 15 Nov '07

15 Nov '07

Hi all He took me at least 10 min to be able to open it (I'm really terrible with user interfaces) but the result is quite cool. please find a list of bugs/questions/suggestions after playing with my laptop (which is quite cool). OLPC Bug: ------------ - I clicked on the mess network then on the small triangle with represent my wifi and I got a window to type the login. I typed the login in, but I could never get the Ok button letting me to press it. :( Etoy Bugs: ------ - etoy projects may get in your way: they can stay over the first etoy window and you do not know how to get rid of them. of course there is the halos but it feels strange. - when I do load, click on OLPC, get a dialog window, click cancel, I get a primitive fail with a debugger. Suggestion: ------------ - Is there any plans to have access to the squeak games: SameCell, tetris and chess. Because a chess program would be cool on this machine. I could open the sameGame because I could get access to the menu: - the size of the square are a bit too small. - This is a pity that the Squeak classes have so few comments because I'm sure a kid could get alone the SameGame new openInWorld but if it would be explained. I think that there is a huge opportunity that such a "details" can break. - I was wondering why stuff like skipLists are still in this image. I'm sure that we could have a much better contents that kids could really explore. - Will DrGeo be buried in the Etoy projects ? Because this would be better to put it as a separate entry. DrGeo can definitively be a first class application on such a machine. Questions for BotsInc. ------------------------- - I removed all references to the file system but when I play with the simple drawing tool I could save drawing to files. So is it possible or not to save files? - I wanted to load my botsInc project so I put it naively on a USB stick but how can I access it. I could not from a load from the load your project list - Using the fileList I tried to use usbdev1.2_ep02 and some others but I failed? Is there a way? I feel that there is a huge potential to see the ideas of alan becoming true at different level (etoys, Smalltalk skin onion model) and I have the impression that the Smalltalk part could be made easier to access. Stef

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[Etoys] can't install Squeak on Ubuntu 7.10 -- could not find display driver vm-display-X11
by Bryan Berry 13 Nov '07

13 Nov '07

I have been trying to install Squeak on Ubuntu 7.10 w/out success I was able to install it w/ Debian packages but the sound didn't work. At the advice of my colleague Luke Gorrie I tried installing it from the VM-Source tarball http://ftp.squeak.org/3.9/unix-linux/Squeak-3.9-8.src.tar.gz I used the documentation in /unix/doc/HowToBuildFromSource.pdf I ran the configure script and got an error that it couldn't find npsqueak libraries. I then tried ../config/configure --without-npsqueak it configured but this showed up in the config.log configure:26825: result: ******** disabling vm-display-X11 I then did make and make install Predictably, I get this error when I try to open a squeak image $ squeak olenepal-demo.4.image could not find display driver vm-display-X11; either: - check that /usr/local/lib/squeak/3.9-8/vm-display-X11.so exists, or - use the '-plugins <path>' option to tell me where it is, or - remove DISPLAY from your environment. Aborted (core dumped) Please assist :) What's the best place to look for documentation on Squeak installation? I found some in the Squeak wiki, OLPC wiki, and a few other places but no single comprehensive resource. I will try to add notes on how to successfully install Squeak on Ubuntu 7.10 onto the OLPC Wiki once I can successfully install it myself : Help! Part of my job is to teach people how to use Squeak so our development team (the real programmers) can focus full-time on developing learning activities w/ Squeak. I need to get up to speed on Squeak quickly. Thanks -- Bryan W. Berry External Relations Manager OLE Nepal, http://nepal.ole.org

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[Etoys] Key bindings
by Bert Freudenberg 13 Nov '07

13 Nov '07

The Sugar team seems to have agreed on some more key bindings that activities should support: http://dev.laptop.org/ticket/4863 Anybody up to implementing these? - Bert - Begin forwarded message: > #4863: Keystrokes for Update1 > -------------------- > +------------------------------------------------------- > This is a summary about (global) sugar keystrokes and what their > state is. > When putting a relnote ticket together i found a few nitpicks > which we > might want to think about. So I leave the relnote out for now. > > alt+enter: toggle full screen mode (does not work in etoys, record > does > have a separate full screen mode so alt+enter does toggle the > toolbox) > > alt+space: toggle visibility of the tray (fine in browse, record > does not > connect its tray to the activity base class so that it's state can be > toggled, tray of the journal is separate from this functionality > as well) > > ctrl+q: quit the activity > > ctrl+escape: quit the activity > > ctrl+u: show source (can be tested in browse) > fn+space: show source (seems to be broken again in 261) > > -- > Ticket URL: <http://dev.laptop.org/ticket/4863> > One Laptop Per Child <http://dev.laptop.org> > OLPC bug tracking system

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etoys-dev November 2007