Using CurveMorph for build jigsaw puzzle Hi Edgar,
Thank you for your interest.
I have not been able to access the pictures in my browser. The mail archive says it cant find them. Do you have them in a public place and can you give me a url to get there?
Now that you mention it I do remember coming across Rompecabezas in the past. I dont remember if I played with it. At that time I might have been stumped in loading it. I gave it another try and found I don't know how to load a .sar file into a 3.2 image. Sigh.
Im glad to hear you want to introduce my new curves to your students. The thought of seeing what others might make of them was one of the motivations of doing the work. I look forward to your results.
I remember running into a similar difficulty with morphs once picked up dropping to places where I couldnt reach them I made a puzzleboard, which was a pasteup morph.
The pasteup morph would take the first dropped morph as the ground for the puzzle. Then anything placed on the board had to be within that ground morph and not touching any other piece. Misplaced pieces where simply rejected. I dusted off the change set and it still works in 3.9. There is currently a minor difficulty about rejected polygons getting deleted (see Mantis #2512 (http://bugs.impara.de/view.php?id=2512) for the fix.) So this might help with your puzzles, Si?
Check http://209.143.91.36/super/634 (on Bobs superswiki) for the old project. Ive now put the cs up there too. My rooks nest on the swiki is at: http://209.143.91.36/super/637
Yours in service, --Jerome Peace
Lic. Edgar J. De Cleene edgardec2001 at yahoo.com.ar
wrote:
Wed Jan 25 10:35:13 CET 2006
Peace Jerome puso en su mail :
Hi Edgar,
I took some time to think about your request. I
would
not use curves or curviers to build jigsaw puzzles. Your best bet is segmented polygons. You just need
to
add enough vertices to make a good curve approximation.
Then arrange them in the solved puzzle. Give them a bitmapfill. Now for each piece do two things. Set the form of the fill to the picture of the
entire
solved puzzle and the origin of each bit fill to
the
same point (topLeft of the entire solved puzzle).
Now
each piece shows its portion of the puzzle. You can now scatter the pieces.
Then of course you (or someone else) has a puzzle
to
solve.
Why not curves.
The way they are set up now each vertex adds
something
to determine how the curves are done. To get
matching
edges you would need something new that hasn't been invented yet in morphic. It's and interesting
problem
but I've relegated it to a back burner. It will require time and inspiration (which comes with time and chance).
I thank you though for triggering some thought on
the
subject.
Cheers and joy -- Jerome Peace
Very kind.
Actually, I have a Rompecabezas (puzzle) app, from my
first incursions in
Squeak.
Is more Pascal what Smalltalk / Squeak and solves the
problem with a
PuzzleMorph subclass of PolygonMorph what roughly do
some similar to your
suggestion.
And was in http://minnow.cc.gatech.edu/squeak/3938
for a long time now.
The made on it end in discovering the first bug on
Squeak on 3.2 times, an
obscure case of when you do the fill some "pieces"
don't could be grabbed .
What now I wish, as part of my students doing his
first steps into Squeak
world, is give this awful code to one, and say what
her should convert in a
semi - decent Squeak app.
And if is possible , use your beauty CurveMorph for
doing.
I investigate about something like | canvas | canvas _ FormCanvas extent: 40 at 32. canvas fillColor: (Color transparent). canvas drawPolygon: (Bezier3Segment example1)
fillStyle: Color red
borderWidth: 2 borderColor: Color black. canvas form asMorph openInWorld
Or | canvas c| canvas _ FormCanvas extent: 40 at 32. canvas fillColor: (Color transparent). c _ Bezier3Segment new from: 16 at 32 via: 20 at
22 and: 22 at 22 to: 24 at 32.
c _ c asBezierShape. canvas drawPolygon: c asPointArray fillStyle:
Color red borderWidth: 1
borderColor: Color black.!
I tried this I got two triangle looking image morphs. Is the problem you are trying to describe that you could pick them up by any transparent pixel within their bounds. I can see that would interfere with overlapping pieces. If so you are correct in using polygons. That worked for my sliding block puzzles. Blocks were easier to manage than jigsaw pieces. You could also subclass imageMorph to define containsPoint only for pixels that cast a shadow. That would prevent them from being picked up. Of course an invisible morph would be hard to catch. ;-) .
The problem could be solved merging a PolygonMorph
and a Curve Morph, as in
attached picture (made by hand and quick for you have
the idea).
I let for the wiz figure how to get a closed figure
with straight and curve
segments :=)
Very thanks !!!
Edgar
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Peace Jerome puso en su mail :
I have not been able to access the pictures in my browser. The mail archive says it can¹t find them. Do you have them in a public place and can you give me a url to get there?
Now that you mention it I do remember coming across Rompecabezas in the past. I don¹t remember if I played with it. At that time I might have been stumped in loading it. I gave it another try and found I don't know how to load a .sar file into a 3.2 image. Sigh.
Maybe because in 3.2 times the Rompecabezas don't reach the .sar status, and I know only what Squeak was my true love and no much more.
By the way I have a modification to last SarBuilder published by Ned just for packaging this kind of app. You could load the last (old , ugly) Rompecabezas.2.sar, with all picts, pr, sounds.
Should be install fine in almost any Squeak what understand .sar. In 3.8 only what you need is drag and drop and all folder creation , etc , should be automatic.
on my ftp ftp://elpelotero@200-122-104-133.cab.prima.net.ar/ password: elpelotero
About 09:00 to 23:00 GMT roughly.
And a lot of things, take what you wish.
I¹m glad to hear you want to introduce my new curves to your students. The thought of seeing what others might make of them was one of the motivations of doing the work. I look forward to your results.
Your beautiful Curves have a new home now, SqueakLight. And just in case someone here find how combine straight - curve segments in a closed figure, we email you
Very thanks.
Edgar
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