First, how can I tell if one object (objects defined by what is drawn not the bounding rectangle) is completely overlapped/inside by another. (I'm not asking about parent/child relationship, I'm asking about visual representation). Put another way, I'm looking for a hitTest function/algorithm that tests if every pixel hits another supplied object, instead of simply at least one pixel hitting it.
Second, assuming the first question is found to be true, how can I get the list of pixels from the larger object that overlaps the visual border (remember the border could be arbitrarily shaped) of the small object. One possibly useful simplifying assumption here is that the larger object is only a single pixel thick border.
I know these questions are a little in depth, so I'm not expecting a complete solution (although I'd take it), so can anyone point me in the right direction (tutorials, examples, utility classes, etc)?
- Dan
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