Is there a (simple) way to return the amount of elements colliding with a single element? Perhaps with jQuery?
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Is there a (simple) way to return the amount of elements colliding with a single element? Perhaps with jQuery?
The HTML DOM doesn’t give us a clean way of finding all elements colliding (or overlapping) with a given element.
The only real way to do it is to check x/y positioning and height/width of each element to calculate collisions geometrically. It’s obviously slow if you are checking all elements on a decent sized page.
There are plugins to make this easier to manage. gameQuery has a collision function that encapsulates all the logic for you. I’m sure there are other plugins as well.