[BUG] Re: [pygame] Compatitbility broken in Rect.collidedict

["René Dudfield" <renesd@xxxxxxxxx>]

Thanks, I'll look into it. I didn't know it had been changed in an
incompatible way.


On 8/6/07, Tim Ansell <mithro@xxxxxxxxxx> wrote:
> Hello,
>
> It appears that the Rect.collidedict method has had quite a bit of
> overhaul between pygame 1.7 and pygame 1.8.
>
> Documentation for pygame 1.7
> > Rect.collidedict(dict if rectstyle keys) -> key/value pair find
> > overlapping rectangle in a dictionary
> >
> > Returns the key/value pair of the first rectangle key in the dict that
> > overlaps the base rectangle. Once an overlap is found, this will stop
> > checking the remaining list. If no overlap is found, it will return
> > None.
> >
> > Remember python dictionary keys must be immutable, Rects are not
> > immutable, so they cannot directly be, dictionary keys. You can
> > convert the Rect to a tuple with the tuple() builtin command.
>
> Documentation for pygame 1.8
> http://www.pygame.org/docs/ref/rect.html#Rect.collidedict
>
> > Returns the key and value of the first dictionary value that collides
> > with the Rect. If no collisions are found, None is returned.
> >
> > Rect objects are not hashable and cannot be used as keys in a
> > dictionary, only as values.
>
> Both forms are actually quite useful for a number of different tasks.
> Maybe you should have a
>
> Rect.collidedictkeys   <- Check against keys
> Rect.collidedictvalues <- Check against values
>
> and then map Rect.collidedict to the keys variety for backwards
> compatibility?
>
> Tim Ansell
> ---
> http://blog.mithis.net/ - Mithro Rants about Stuff
> http://www.thousandparsec.net/ - Conquer the Universe (and then some)
>
>