Re: Context menus and deleting objects

On Nov 27, 2003, at 1:56 AM, Marcin Pilat wrote:

> 1) I’ve tried to create a context menu for an object using 
> “add-menu”.  When I right click on the object, I get the main 
> application menu instead.  Am I doing something wrong or object 
> context menus are not supported in the windows version?  I do succeed 
> in adding onto the main context menu by calling “add-menu” through the 
> controller.

I'll have to test this out myself, as I haven't noticed any problem 
with contextual menus on Windows earlier.

> 2) Is it safe to call “free self” or does that create any problems?  I 
> run into a problem with freeing an object that had scheduled a 
> function call (using the “schedule” method).  How can I 
> disable/unscheduled this method call?  Right now, when the method gets 
> called, the application crashes with error “method <name> being called 
> with freed object”.

This is a bug--the methods should be automatically removed if the 
object is freed.  I'll fix this for the next release.

> 3) This is a tricky question.  Would it be possible to set the 
> parameters of the physics engine so that a linear arrangement of 
> object (lets say spheres) becomes a multi-layered arrangement 
> (basically 2d->3d) due to a force applied to the objects?  I’m doing a 
> simulation where I would like to push spherical objects up (stocking 
> them) by applying forces to an array of objects in a plane.  Any help 
> would be greatly appreciated.

I'm not sure I understand your question exactly, but it does sound like 
you're trying to do something that the physics engine is not intended 
for.  There is a section of the documentation that deal with this type 
of question:
http://www.spiderland.org/breve/docs/docs/physics.html#PHYSICS_VS_PSEUDO

It sounds like you would NOT want to use the physics engine in this 
case, and instead implement your own "physics-like" rules.

- jon klein	

_______________________________________________
breve mailing list
[email protected]
http://www.spiderland.org/mailman/listinfo/breve