squeakland March 2006

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20 participants
38 discussions

Re: [Squeakland] Copy an object programmatically.
by Randy Heiland 07 Mar '06

07 Mar '06

> -----Original Message----- > From: Blake [mailto:blake@kingdomrpg.com] > Sent: Tuesday, March 07, 2006 2:05 AM > To: Randy Heiland > Subject: Re: [Squeakland] Copy an object programmatically. > > On Mon, 06 Mar 2006 07:20:10 -0800, Randy Heiland <heiland(a)indiana.edu> > wrote: > > > The key is that you can create a variable which is of type 'Player' (on > > the variable's menu, select 'change value type' and choose 'Player'). > > E.g., I created a player variable called 'clone1' for my sketch > > (actually I called it 'clone', but apparently it conflicted with some > > reserved var, so a '1' > > was appended). You can then > > 1) assign something to that var - e.g. 'sketch's copy', and > > 2) use that var on the left-hand of an assignment - e.g. replace the > > 'sketch' in 'sketch's x <- <value>' with 'sketch's clone' > > > > Hopefully the attached image will help clarify. > > Yes, thank you. So you have to do everything with the base type first and > then replace with the variable? That's my understanding. > > > You might also want to get in the habit of doing things in a playfield > > instead of in the world. > > Yeah, I noticed the problems with using the world pretty quickly. Please copy the list! Archives are a wonderful resource. --Randy

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Fwd: Test a random tile.
by Blake 05 Mar '06

05 Mar '06

The following was sent by Jerome Peace to me. It works. I would've found it by experimentation but it doesn't light up the replacement area with green! -------------- Hi Blake, I don't have a squeakland account yet so I'm replying directly. The trick is Random tiles will replace any object tile. So to do a test of say random 10 < 5 . What you do is start with your morph. Get an empty script. Put the test box in the script. From the morph get any numerical tile say "morph's x" and Put it in the test slot. It turns into morph's x < 5. Now from the script menu get a random tile and Drop it directly over the morph's x part of the test. The ramdom tile will replace morph's x and you will have: Random 180 < 5 Adjust the numbers to suit and I believe you have what you want. If this works for you please forward it to the squeakland list. Yours in service, -- (wiz) Jerome Peace

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Re: [Squeakland] graduated fill
by Bob Arning 03 Mar '06

03 Mar '06

On Fri, 03 Mar 2006 10:44:49 -0500 "Sholom Eisenstat" <sholom.eisenstat(a)tel.tdsb.on.ca> wrote: >With some experimenting in class, we've determined that a morph created with the draw tools does not have the same set of color/border tiles that a morth grabbed from the supplies tab has. The latter's tiles enable the fill stuff whereas the former's don't. > >So, that appears to be the end of that thread though I don't understand why the difference is programmed in as such. Sholom, Simplicity is probably as good a reason as any - simplicity of implementation and simplicity of understanding. Things you get from the supplies bin, like rectangles and ellipses, have a rather obvious border and color, both of which can easily be changed and the user understands what will happen. When you create something with the draw tools, this is much less clear. If you drew something complex, with multiple colors, possibly disjoint regions, and convex/concave edges, where/how would a border be drawn? Would a fill replace the entire rectangle enclosing the drawing, or only parts that had been "drawn", or only one/some colors? It's possible that what you want could be achieved by embedding the sketch in a rectangle and then filling/bordering the rectangle. Cheers, Bob

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Re: [Squeakland] graduated fill
by Alan Kay 03 Mar '06

03 Mar '06

Hi -- 07:44 AM 3/3/2006, Sholom Eisenstat wrote: >With some experimenting in class, we've determined that a morph created >with the draw tools does not have the same set of color/border tiles that >a morth grabbed from the supplies tab has. The latter's tiles enable the >fill stuff whereas the former's don't. > >So, that appears to be the end of that thread though I don't understand >why the difference is programmed in as such. Yep, it shouldn't be. The plan for the new system is for everything 2D to be made from polygon/curves, and that bit-map painting will essentially be a texture. We have also been experimenting with freehand painting that results in vector graphics objects on the fly ... Cheers, Alan >Markus Gaelli <<mailto:gaelli@emergent.de>gaelli(a)emergent.de> on Friday, >March 3, 2006 at 4:27 AM >wrote: > > > > > >On Mar 3, 2006, at 2:06 AM, Sholom Eisenstat wrote: > > > >> so, more playing..... > >> > >> > >> If I take a morph from the supplies tab, what I want to do can be > >> done, but why can't I do the same thing with a morph I create with > >> the graphic tools? > >Hi Sholom, > > > >I have experienced that many starters of EToys think of sketches as > >rectangles. But a sketch can be any graphical object. > > > >The best mileage you can get from a sketch is to make it a compact > >one - like the classical red car. Then it is easy to think of it as > >an object. > >But the space to do the gradient fill in is not be well defined in a > >sketch - shall it fill the tires or the body of the car? > > > >So: > >If you need to draw an arbitrary closed surface with a gradient fill > >try Curve or Polygon. > >If you need a rectangular filled background with some sketch on top > >just stick to Playfield. > > > >And please: > > > >Sholom: reply to all, so that others can participate in the discussion > >or > >Listmaster: set the default to reply to list as it is in Squeak-dev > >;-) > > > >Cheers, > > > >Markus > > > > >Sholom Eisenstat > > > > > >_______________________________________________ >Squeakland mailing list >Squeakland(a)squeakland.org >http://squeakland.org/mailman/listinfo/squeakland

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Copy an object programmatically.
by Blake 03 Mar '06

03 Mar '06

How can I create a copy of an object at runtime? Can I destroy a copy? Thanks.

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Re: [Squeakland] graduated fill
by Markus Gaelli 03 Mar '06

03 Mar '06

On Mar 3, 2006, at 2:06 AM, Sholom Eisenstat wrote: > so, more playing..... > > > If I take a morph from the supplies tab, what I want to do can be > done, but why can't I do the same thing with a morph I create with > the graphic tools? Hi Sholom, I have experienced that many starters of EToys think of sketches as rectangles. But a sketch can be any graphical object. The best mileage you can get from a sketch is to make it a compact one - like the classical red car. Then it is easy to think of it as an object. But the space to do the gradient fill in is not be well defined in a sketch - shall it fill the tires or the body of the car? So: If you need to draw an arbitrary closed surface with a gradient fill try Curve or Polygon. If you need a rectangular filled background with some sketch on top just stick to Playfield. And please: Sholom: reply to all, so that others can participate in the discussion or Listmaster: set the default to reply to list as it is in Squeak-dev ;-) Cheers, Markus

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Keynote talks from C5 Conference now online
by Kim Rose 03 Mar '06

03 Mar '06

Hello, Videos from the two keynote addresses given at the C5-05 Conference (Bob Stein, The Institute for the Future of the Book & Diana Oblinger, Educause) are now available online here: http://www.db.soc.i.kyoto-u.ac.jp/c5-06/ Please share with anyone you know that may be interested. cheers, -- Kim

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Re: [Squeakland] Label of a button Was: RE: newbie(ish) question (buttons)
by Hübner, Uwe 02 Mar '06

02 Mar '06

No, it isn't. We both just talked of differend things that have the same name! I 'painted' the ellipse. You 'drew' it out of the 'Supplies' flap. If I take it from the Supplies-flap, I can now follow your describtion exactly! Many thanks and sorry for the inconvenience! Kind regards, Uwe -----Original Message----- From: Markus Gaelli [mailto:gaelli@emergent.de] Sent: Thursday, March 02, 2006 1:29 PM To: Hübner, Uwe; Squeakland Subject: Re: Label of a button Was: RE: [Squeakland] newbie(ish) question (buttons) Importance: High Hi Uwe, > thanks for the 'extended' answer. > Unfortunately I could not follow your description. > > I did the following: > > 1. I worked with Squeakland image 3.8-05 latest update: #531 > > 2. I drew an 'Ellipse' and filled it > (that should become my 'button') > > 3. The balloon of the 'color-pipette-halo' > says: 'Repaint'. This is bizarre. If I don't press any key at all and hover over the pipette in 3.8-05 #531 I get the following:

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graduated fill
by Sholom Eisenstat 02 Mar '06

02 Mar '06

How does one fill a morph with a 'graduated fill' ? It's easy enough to do with the halo button on a playfield but filling a morph eludes me!! Sholom Eisenstat

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Re: [Squeakland] Label of a button Was: RE: newbie(ish) question (buttons)
by Bob Arning 02 Mar '06

02 Mar '06

On Thu, 2 Mar 2006 13:28:44 +0100 Markus Gaelli <gaelli(a)emergent.de> wrote: >Hi Uwe, > >> thanks for the 'extended' answer. >> Unfortunately I could not follow your description. >> >> I did the following: >> >> 1. I worked with Squeakland image 3.8-05 latest update: #531 >> >> 2. I drew an 'Ellipse' and filled it >> (that should become my 'button') >> >> 3. The balloon of the 'color-pipette-halo' >> says: 'Repaint'. >This is bizarre. If I don't press any key at all and hover over the >pipette in 3.8-05 #531 I get the following: Sounds like Uwe actually drew an ellipse with the painting tools while Markus used an EllipseMorph. For Uwe's method, there is a Repaint (meaning painting tools) halo and another halo which may be on the left or right, may be magenta or light-gray and may say Property sheet or Change color - all depending on halo preferences set in the preferences tool. Cheers, Bob

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squeakland March 2006