[pygame] RenderUpdates.clear() bug

[Shandy Brown <shandy@geeky.net>]

I was saying earlier on IRC that 
"I would think RenderUpdates should be smart enough such that if a
sprite is removed from it, it clears that rectangle on clear()"

So I took a look at the code, and it looks like it INTENDS to do that,
but it doesn't work.

here's what I'm doing:

mySprite.kill() #removes the sprite, but myGroup keeps track of it in 
                #myGroup.lostsprites
myGroup.clear() #clears the sprite off the IN-MEMORY surface, but not
                #off the screen.  Also removes the sprite from 
                #myGroup.lostsprites
myGroup.update()
rects = myGroup.draw() #rects doesn't include the rectangle for mySprite
pygame.display.update( rects ) #so we don't ACTUALLY clear it

Now, there's two ways I can see around this:
1 - add a RenderUpdates.clear() method exactly like RenderClear, except
it doesn't empty self.lostsprites
2 - make sure a sprite's kill method is ONLY EVER called from it's own
update method

Thoughts?

-- 
+-------------------------------------------------------------+
| Shandy Brown                               Digital Thinkery |
| shandy@geeky.net             http://www.digitalthinkery.com |
+-------------------------------------------------------------+

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