, and I
> don't know whether to be happy or sad that he's a 12-year-old who
> understands the phrase "race condition". Scratchy has "lands" because
> he wanted something like that for his game.
>
> At Wed, 28 Nov 2012 07:37:27 -0500, Yaron Minsky
pardon terseness and mistakes.
> On Nov 28, 2012 7:38 AM, "Yaron Minsky" wrote:
>
>> To be clear, I'm firmly interested in tinkering, which is why I'm
>> using universe.ss and image.ss.
>>
>> I do think that a good design goal for Racket's kid-
t happening soon.
>
> [*] At the suggestion of my son. He's a Scratch fan, though he quickly
> became frustrated by the lack of abstraction in Scratch, and I
> don't know whether to be happy or sad that he's a 12-year-old who
> understands the phrase "race con
ub.com/get-bonus/get-bonus/tree/master/gb/physics
>
> Personally, I think you should use this opportunity to teach your kid
> the Pythagorean Theorem, like the Boostrap curriculum teaches:
> http://www.bootstrapworld.org/materials/
>
> Jay
>
> On Tue, Nov 27, 2012 at 8:37 P
at 7:11 AM, Hendrik Boom wrote:
> On Tue, Nov 27, 2012 at 08:56:13PM -0500, Yaron Minsky wrote:
>> I've been weaning my son off of Scratch in favor of Racket, and trying
>> to get him to write interactive games using universe.ss and image.ss.
>> I'm wondering if anyon
I've been weaning my son off of Scratch in favor of Racket, and trying
to get him to write interactive games using universe.ss and image.ss.
I'm wondering if anyone has suggestions for how to do things like
collision detection. image.ss has these nice first-class images, but
I don't see a good way
Is there any support for playing sounds within the Universe teachpack?
y
_
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On Sun, Feb 6, 2011 at 9:58 PM, Matthias Felleisen wrote:
>
> On Feb 5, 2011, at 9:55 PM, Yaron Minsky wrote:
>
> > it should be to build satisfying video games are really worth fixing.
>
> Yes they are! Any helpful proposals are appreciated and have been acted on
> in t
it does seem to work.
y
On Sat, Feb 5, 2011 at 10:05 PM, Yaron Minsky wrote:
> In playing around with image.ss, I've run into the following problem: the
> center of an image does not appear to be rotation invariant. Thus, if you
> use place-image/align in order to place a triangle
In playing around with image.ss, I've run into the following problem: the
center of an image does not appear to be rotation invariant. Thus, if you
use place-image/align in order to place a triangle, say, that you then
rotate continuously, you will see the triangle wobble as its effective
center m
On Sat, Feb 5, 2011 at 9:43 PM, Mark Engelberg wrote:
> There are projects that are trivial in Scratch that are hard in Racket, and
> vice versa. Porting your Scratch projects to Racket is not likely to be a
> very productive use of your time because they have such different strengths
> and weakn
On Wed, Feb 2, 2011 at 7:20 AM, Stephen Bloch wrote:
>
> > Another thing I'd be interested in suggestions with is how to deal with
> updating a struct in a clean way. Right now, you need to explicitly wrote
> set-world-X functions for each field in your struct, which is pretty ugly.
> Also, the
On Wed, Feb 2, 2011 at 10:23 AM, Matthias Felleisen wrote:
>
> On Feb 1, 2011, at 9:27 PM, Yaron Minsky wrote:
>
> > I'm finding it to be rather tough going, mostly because a lot of things
> that are really easy in scratch seem surprisingly hard in racket.
>
> [I
and the size of
> the png images (wxh)?
>
> Robby
>
> On Tue, Feb 1, 2011 at 8:27 PM, Yaron Minsky wrote:
> > I am trying to teach my scratch-addicted son a bit about racket, and I'm
> > finding it to be rather tough going, mostly because a lot of things that
> ar
I am trying to teach my scratch-addicted son a bit about racket, and I'm
finding it to be rather tough going, mostly because a lot of things that are
really easy in scratch seem surprisingly hard in racket. Also, even when I
can get things done, the performance of the graphics leaves something to
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