[Edu-sig] re-doing GvR in xturtle

[Andre Roberge]

On 8/11/06, Scott Chapman <scott_list at mischko.com> wrote:
> Andre Roberge wrote:
> > I started developping Crunchy for that very purpose: to have a
> > web-based version of RUR-PLE.  I still plan to do that, eventually...
> > For the foreseeable future, Crunchy will continue to be developped to
> > run locally, however with the ability of "fetching" tutorials located
> > elsewhere on the web.  The work lately has focused on doing this part
> > in a secure way. The next release (soon!) should be secure that way.
>
> Andre,
> I'm thinking of what all is needed to get Crunchy to do RUR-PLE.  One thing is
> the ability to click on the canvas (to build the walls in the "worlds").  Is
> there any capability to do this yet?
>

There isn't. This would involve some javascript coding of the kind
I've never done (finding where on a page a click has occurred, etc.).
It might be straightforward to do.  However, another approach I have
been thinking about is to have the world-builder being a Tkinter or
wxPython based app that is launched from Crunchy; this would mean only
Python programming (no javascript) and totally doable *today* within
Crunchy. (not in the last public released version, but in the svn.)

> What else needs to be done to Crunchy to begin doing RUR-PLE in it?
>
Actually, before the world-builder, some means to have the robot moves
within a canvas.

The first thing to do would be to load an image and have it move on the canvas!

My original plan was to use, as a first prototype, the existing Python
from rur-ple create a "list" of moves coming from running a user
program.  This could be passed to a little javascript program with
each move executed by a setTimeout call with a suitable delay.

At this point, any "toy" program that simulates robot motion within an
html canvas would be useful to have to play with and explore ideas.

To go back to Crunchy, I'd like to replace the html textarea by an
editor with syntax colouring, like editarea
(http://cdolivet.net/index.php?page=editArea ).  I've already
contacted the author and there's a possibility that the current
limitation (one instance per page) might be removed soon, making it
suitable to be adapted for Crunchy.  There's a few more things I want
to implement before I'm ready to move on to rur-ple within Crunchy.
My (ambitious?) goal is to get there by mid-Fall.

Any help of any kind (even creating little toy programs/samples) would
be appreciated!

André

> Scott
>