I am in the process of creating a new interface for my program, which, for lack of any good comparison, can be thought of as a 2D scrolling game with a bunch of clickable sprites. I need to do hit testing to see if particular bitmaps have been clicked on. I have the following information available to me:
- An array of NSImages that I can get bitmaps and masks from - The view I'm compositing the images into. - The order I'm compositing the images (so I know which image is painted on top of which other one, letting me calculate a new bitmask) - The location I'm compositing the images relative to the view. What I want to know is if a user has clicked on a particular image. I know I need to do hit testing, and I know I can create my own code to do so, but I was wondering if Cocoa had some built-in method to determine if a point is within a bitmask or not. If there is a built-in way, I'd rather use that. Thanks, Cem Karan
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