[Sugar-devel] Physics Roadmap

[Brian Jordan]

Fantastic commits, Gary! :)

On Tue, Jun 16, 2009 at 4:20 AM, Gary C Martin<gary at garycmartin.com> wrote:
> Hi Asaf,
>
> On 14 Jun 2009, at 20:06, Asaf Paris Mandoki wrote:
>
>>
>> I was slightly confused how to get the motor to work initially. I didn't
>> realise it was a 'pin' like tool, I assumed it would just add rotation
>> torque to an object. Is that possible as well with the current code? The
>> first thing I wanted to try was a car with wheels but the current motor
>> effect is pinned in place.
>> I just added a button for a feature that was already there but was hidden.
>> I'm not sure how possible it is with a minor modification.
>>
>> On a separate task, do you mind if I clean up the toolbar so it operates
>> as a real set of radio buttons, indicating state correctly? I can then also
>> get rid of the "Current tool: <tool>" white text in the main canvas.
>> That will be great.
>>
>> I'll also likely add a centre dot to your current motor icon so it is more
>> clearly a pin point type tool :-)
>>
>> I think it is better to modify the behavior of the tool. It's much more
>> versatile the way you thought it would be. I'll write to the coordinator of
>> the Elements project to get the documentation and see how to get that
>> implemented.
>>
>> I'll start working with the journal integration then. Once I have
>> something commitable I'll create a new branch if necessary.
>>
>> OK, Journal integration would be great! I'll make sure to make no edits
>> out side of the toolbar work, to try and avoid merge conflicts. Shout if you
>> want me to hold off on my toolbar changes for now, I don't want to slow you
>> up.
>>
>> I still have to do some research and see how Alex implemented the journal
>> integration in x2o so I think it will take me some time. Go ahead with the
>> toolbar modifications.
>
> Had a fairly productive evening here on Physics, worth a git pull if you
> want a play :-)
>
> - Fixed radio buttons so tools are added to a group (toolbar now correctly
> shows state).
> - Added accelerators for UI visibility and cleaned up tool key handling
> event code.
> - Removed text (printed white on white canvas!) now toolbar correctly
> displays state.
> - Renamed some tools and adjusted key accelerators (all tools now have a
> key).
> - Default behaviour of poly tool a solid rather than decomposed triangles
> (much more useful), old behaviour still there via 2nd mouse button.
>
> I vaguely remember some discussion/friction about that last change, but
> defaulting to decomposed triangles is pretty useless if you are trying to
> build something.

Don't think there was ever any discussion, it was just unfinished
functionality.  Great fix!

> Hope I didn't put anyone nose out of joint, but there are
> way more educational uses for complex polys rather than just trying to show
> all polys decompose to triangles ;-)
>
> I'm going to do some more tomorrow. Now the accelerator keys are in, and
> radio toolbar behaviour is fixed, I'll have a go at adding the play/stop
> toolbar toggle so the feature is exposed in the UI and not just a hidden
>  SPACE keyboard shortcut.
>
> Oh darn, my marble pusher contraption jammed again ;-)
>
>
>
>
>
> Regards,
> --Gary
>