Beginners March 2009

beginners@lists.squeakfoundation.org

33 participants
26 discussions

Re: [squeak-dev] Re: New Window VM (Closures, FT2Plugin, Large Cursors)
by Rob Rothwell 08 Mar '09

08 Mar '09

On Sun, Mar 8, 2009 at 2:24 AM, Klaus D. Witzel <klaus.witzel(a)cobss.com>wrote: > On Sat, 07 Mar 2009 18:51:01 +0100, Eliot Miranda wrote: > > Hi Klaus, >> > > Hi Eliot, > > great job, native closures-support was overdue and is appreciated by the > Squeakers. Hi all, This is really a newbie question; but I'd thought I'd ask everyone who is already talking about it anyway... Can you explain exactly what IS native closures-support and why it will be appreciated by the Squeakers? What will this allow you to do that was not previously possible? Thank you, Rob

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BUG: Squeak-3.10 VM and ubuntu
by Markus Schlager 05 Mar '09

05 Mar '09

Hi Jan, I do know, this is the wrong mailing-list for this issue. Maybe someone could do me the favour and forward this mail to the VM mailing list. Problem description: When running squeak with a Squeak-3.10-VM (tested with 3.10-1 and 3.10-4) an ubuntu hardy, it is not possible to close squeak by closing the squeak-window with Alt+F4 nor with the x-icon. It doesn't happen anything. This is a real Problem when running Scratch on Linux, since this is the only way to close a Scratch. When will Squeak-3.10 get included into the ubuntu-repositories? Squeak-3.9-VM doesn't handle unicode properly. Markus ----------------------------------------------- Markus Schlager m.slg(a)gmx.de

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Squeak/Smalltalk - Java
by Luis 05 Mar '09

05 Mar '09

Hiya, I wonder if someone would clarify something for me (I'm hoping someone on the list may be involved/know someone on these projects): I've noted a trend with two big Squeak apps, Alice and Sophie, going to Java for their next major release: Why is this so? I'm all for using the right tool for the job, but why such a (huge?) step away from Smalltalk? I can't see what Java will bring to Sophie that could not be done with Squeak and Seaside, according to the notes for version 2 on the Sophie site. Is the funding tied to Java/Sun? I'm glad Croquet is still in the picture, especially with the development of Cog (new VM). Sorry if this isn't the best place for this, but I am a (concerned!) newbie! Cheers, Luis.

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Laser-Game sect1 pg 26 problem
by Marco Segreto 05 Mar '09

05 Mar '09

Hi, I'm new to squeak and was using the Laser-Game tutorial: http://squeak.preeminent.org/tut2007/html/ and was on page 26 when I got stuck: http://squeak.preeminent.org/tut2007/html/026.html. I ran UnitTests right before completing this page and everything was working fine so something with this page is making it now work. I put MirrorCell, BlankCell and TargetCell as a subclass as Cell. Cell is a subclass of Object. I created new methods leanLeft and leanRight under mirror cell under a testing protocol. Under BlankCell I modified the initializeExitSides method so it dislays the same as on the page and added self leanLeft to the initialize method. I then moved all the other methods out of BlankCell and put them in Cell. These are the directions the page gives. When I run Unit Test I get 4 failures for 4 tests. It says that BlankCell(Object) doesnotundertand #leanLeft. leanLeft was not set as an instance variable on any class and accessors were not created for it. The instructions weren't very clear on where to put everything. I wasn't sure where to put the initializeExitSides method that was under BlankCell (if it was supposed to be moved or not). I also wasn't sure which class initialize method I was supposed to add "self leanLeft" to as it says to do at the bottom of page 26. This is my first post to the mailing list so please let me know if theres anything more I should post or do to receive help.

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Unable to create pong game setup script in Etoys 3.0
by Steinar Bang 02 Mar '09

02 Mar '09

Hi, I'm trying to follow the tutorial here: http://billkerr2.blogspot.com/2007/11/making-pong-in-etoys.html Creating the move script went fine, but I have problems creating the setup script. What I did to create the move script, was click on the eye, and got up a window, where I set the name of the ball object to ball. Then I dragged an empty script on the Etoys window and dropped it. Then I selected the category "motion" in the lower half of the ball window, and dragged and dropped "ball forward by" and "ball bounce" on the new script, which I've named move. I then dragged the empty script and dropped it on the background to create a new script. But here I've been unsuccessful in dragging "ball's heading" from the "motion" category. That's is: I've been successful in dragging it, but not dropping it and having it connect to the script. I've tried hovering over the script, I've tried touching it all edges of the script. I've looked at menu entries. But no luck yet. Does anyone know what I'm doing wrong? Thanx! - Steinar

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how to create multiple colorforms from a master colorform
by mstramba 02 Mar '09

02 Mar '09

Greetings, I have a ColorForm create from : (Form fromFileNamed: cards). It's an 840x504x8 png file of a deck of playing cards, i.e. showing all the cards. I want to create individual ColorForms, each representing one playing card from the 'master' colorform. So I guess I need to (in a loop) extract a rectangular area of pixels from the original ColorForm and then create a new colorform from those extracted pixels. I'm looking at the ColorForm, ImageMorph, Form .. and other superlcasses methods, but haven't figured out which combination of methods I need to use. Mike -- View this message in context: http://www.nabble.com/how-to-create-multiple-colorforms-from-a-master-color… Sent from the Squeak - Beginners mailing list archive at Nabble.com.

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Beginners March 2009