squeakland November 2007

squeakland@lists.squeakfoundation.org

33 participants
43 discussions

OLPC pen trails for turtle graphics
by Simon Guest 04 Nov '07

04 Nov '07

Hi, I'm just about to start my own kids off on some OLPC Etoys investigation, so I had a quick play, intending to make some turtle style polygons. It didn't work as I expected. A simple script like this: Repeat 2 times Star forward by 100 Star turn by 90 did not leave an L shape trail as I expected, but a diagonal line from the start to the finish position. Is this how pen trails are supposed to work? How do I draw a classic polygon, where the start and finish positions are the same? Currently no pen trail is left at all. cheers, Simon

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missing from etoys?
by Bill Kerr 02 Nov '07

02 Nov '07

I can't see any capability for keyboard commands (important requirement for serious game making) -- Bill Kerr http://billkerr2.blogspot.com/

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event capture, batched screen updates, wait
by Timothy Falconer 02 Nov '07

02 Nov '07

Hi all, Three questions about etoys. First, is there a way I can capture the event of turning a page in a book to fire off a script? Specifically: 1. click next to go to page4 2. this fires page4.startTheFun 3. click prev, then click next again 4. fires page4.startTheFun again Second, when looping within a script, it appears that the screen updates are batched. If I do "repeat 10 ... forward 10", it looks the same as if I did "forward 100". Is there a way around this, or do all screen updates happen on a clock tick. Last, is there a way to wait a set amount of time, other than rolling my own "wait" using a variable?

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squeakland November 2007