[Olpc-open] [Etoys] squeaky tales and waveplace vision
yoshiki at vpri.org
Thu Nov 15 14:23:48 EST 2007
> > I might be missing what you're explaining around 7 minutes, but
> > you *can* put the variable "tot11's turnHolder into the place of
> > any player-type variable (such as the left hand side of "cursor
> > increase by 1".
> What I couldn't figure out in #19 was "tot11's totHolder's cursor
> increase by 1" I knew how, but "cursor" simply didn't appear on
> the list, I'm guessing because only Player stuff shows there.
Yes, basically, you have to think backward; first, build a tile looks like:
whateverHolder's cursor increase by 1
and then grab the variable tile from the viewer of tot11 and drop it
on to "whateverHolder's". This is one of these nasty issues Etoys
> > Around 4:30 minutes into the movie, you say something like:
> > "... unless there some good reasons..., you should always use the
> > commands for the same object." Is that because you are using siblings
> > and have been bitten by the issue? (I think so.)
> Hmm... I think my point there was to train people to default to using
> the "self" receiver for each message .... if it's tot11's script, use
> tot11 as the receiver of everything unless you have a good reason not
> to, such as tot11 telling some other object what to do. There are
> several commands that really don't require the exact right receiver,
> such as sibling sends and "clear pen trails", etc. I'm just making
> the point that people should train themselves to stay consistent.
In the context with siblings, yes, it helps. I was listening it out
of context, and I just thought that "it is not quite right". But it
> > I have no idea what causes the magnification issue. So strange.
> > You have siblings and copies, right? If so, yes, that could be
> > hard. The last issue you have seems to be related to it.
> Yes, the visual stuff in the holder were copies and the active
> players are siblings. If the magnification is a by-product of
> siblings/dupes co-existing, it's a good thing to know.
I missed it for the first glance. Yes, look like actually uses the
original size; i.e., if you have:
A look like: B
and B was originally painted in big size but resized by the yellow
handle, executing this line causes A look like big (original) B.
> One other request ... a "wait" tile ... with seconds. Could go in
That is tricky. The Morphic system likes synchronized, co-operative
objects in its world.
(A version of object system called Tweak has it, just to mention.)
Luke posted a solution but that looks, err, brute-force^^; A good
practice would be to split such a script in which you would like to
"wait", and call the second part from somewhere else. (I'm pretty
sure that others have better ideas).
I put Reply-To: field to omit olpc-open. The mailing list system
might change it, but probably it is better not to post detailed
discussions on Etoys to that list.
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