I just spoke with a room of high-school students studying Universe
programming in a summer course at Brown.
One major complaint was that they couldn't do multi-key-presses. For
instance, they want to use WASD navigation combined with a right-side
key for firing, and want to be able to fire and
As far as I know, at the lowest level there is no multiple key press
event even in the OS.
If they want to do that, they should change their world to record the
current key press state:
(define-struct the-world (keys . everything-else))
and at the start of `on-tick' look at the collective
I have considered this issue. I decided that these kinds of kids should be
introduced to Universe programs as opposed to World programs. That's way cooler
than silly one-keyboard games.
-- Matthias
On Jul 22, 2010, at 9:29 AM, Jay McCarthy wrote:
As far as I know, at the lowest level
As far as I know, at the lowest level there is no multiple key press
event even in the OS.
Yes, that's why I had scare-quotes in my message.
If they want to do that, they should change their world to record the
current key press state:
I told them that. But the problem is that inversion of
On Jul 22, 2010, at 9:38 AM, Shriram Krishnamurthi wrote:
I have considered this issue. I decided that these kinds of kids
should be introduced to Universe programs as opposed to World
programs. That's way cooler than silly one-keyboard games.
Doom is silly? Duke Nukem 3D is silly?
On Thu, Jul 22, 2010 at 7:38 AM, Shriram Krishnamurthi s...@cs.brown.edu
wrote:
As far as I know, at the lowest level there is no multiple key press
event even in the OS.
Yes, that's why I had scare-quotes in my message.
If they want to do that, they should change their world to record the
This commit finishes adding 'define-datatype' and 'match' to ASL per
Shriram's request.
I'd like comments and improvements on a few things:
1) The documentation -- most of the ASL docs are very vague,
presumably because the book covers it, but in this case that's not
true
2) The subset of match
On Thu, Jul 22, 2010 at 6:43 AM, Jay McCarthy jay.mccar...@gmail.comwrote:
On Thu, Jul 22, 2010 at 7:38 AM, Shriram Krishnamurthi s...@cs.brown.edu
wrote:
As far as I know, at the lowest level there is no multiple key press
event even in the OS.
Not that there is a multiple key press
At Wed, 21 Jul 2010 17:09:03 -0600, Matthew Flatt wrote:
I've pushed a change to the git repo that I don't think will fix the
problem, but I think it will give us better information when you get a
chance to try it.
The new error message provoked a bug report that led to a repair. So,
please
To fix a backwards compatibility bug, I just had to go download PLT
Scheme 4.2.4. It's a real pain to do so. First, the Racket site
doesn't seem to link to versions before 5.0. I had to go to
plt-scheme.org manually. It'd be nice if I could get to the whole
history in one place. Second, at
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