How do I check if the mouse is over a certain circle without overlap?

Question

In my processing program, I have made several circles positioned randomly. I used the distance formula to calculate if the mouse is over a certain area.

However, this algorithm fails when circles overlap because it thinks the mouse is over both circles. What is a way to only detect if the mouse is on the circle on top?

score 1 · Accepted Answer · answered Feb 29 '12 at 19:11

1

Not sure how you are implementing it, but one option would be to give each of your circles an index. Start at 0 and increment for each circle. Then, when your algorithm checks the circles, only use the circle with the highest index value.

answered Feb 29 '12 at 19:11

DJ Quimby

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Thanks, that works! I'm now storing the circles as objects with a draw method and attaching an index to each one. – dangerChihuahua007 Mar 01 '12 at 17:06

How do I check if the mouse is over a certain circle without overlap?

1 Answers1