[squeak-dev] Why does BouncingAtomsMorph fudge bounds

Sean P. DeNigris sean at clipperadams.com
Sun Jan 29 05:10:17 UTC 2012

AtomMorphs take their topLeft as their position. This causes them to bounce
past the bottom and right edges of their container by "atom width" and "atom
height" respectively. 

Then, BouncingAtomsMorph comes to the rescue in #step with:
r _ bounds origin corner: (bounds corner - (8 at 8)).

Why was this done this way? Was it to make the AtomMorph's method look like
more purely like a mathematical formula for a particle? If so, this makes
sense, but a comment documenting the intent would be really nice.


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