[squeakland] point towards the mouse?

[Bill Kerr]

On Wed, Nov 11, 2009 at 8:38 PM, Scott Wallace <scott.wallace at squeakland.org
> wrote:

> Attached below is another solution, using an invisible "sprite".
>

How did you make the invisible sprite Scott?
I just clicked on your Sprite's show key and nothing appeared
Is it just an empty drawing which you keep? I haven't tried that yet

I almost worked out that one myself after my intial post
But I made a visible sprite and then shrunk it - it sort of worked but
because the sprite was visible once it was ticking I couldn't use the mouse
to switch off the clock or anything else because the sprite got in the way


>
>  -- Scott
>
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> On Nov 11, 2009, at 1:02 AM, Scott Wallace wrote:
>
> > On Nov 10, 2009, at 11:02 PM, Darius Clarke wrote:
> >
> >> For point 1 you can use the slope formula m = (y1-y2)/(x1-x2) and then
> arcTan m to get degrees.
> >>
> >> arcTan may have to come from Smalltalk mode.
> >>
> >> Cheers,
> >> Darius
> >>
> >> On Tue, Nov 10, 2009 at 10:53 PM, Hilaire Fernandes <
> hilaire.fernandes at edu.ge.ch> wrote:
> >> For point 2.,  you may have to write the script in Smalltalk mode then
> >> use the code
> >>
> >> ActiveHand x to get abscissa of the mouse pointer
> >>
> >> Hilaire
> >>
> >>
> >> 2009/11/11 Bill Kerr <billkerr at gmail.com>:
> >>> 1) Is it possible to get an arrow to point towards the mouse pointer in
> >>> etoys?
> >
> >
> > FWIW I attach a working example... notice that it's all done with tiles
> -- no textual scripting.
> >
> > -- Scott
> >
> >
> > <pointTowardCursor.002.pr
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