How to detect touch in triangle area

Posted by Romain on Stack Overflow See other posts from Stack Overflow or by Romain
Published on 2010-06-08T21:35:12Z Indexed on 2010/06/08 21:52 UTC
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For my application, i need to divide diagonally the screen of my iphone in 4 parts and detect which of the part was touched. I am very confused because my areas are triangles and not squares and I can't find a solution to detect which of the triangle was touched...

I get the touched Point with method touchesBegan, and there I'm stuck... :( How to define triangle shapes and test if it was touched? with View? layer?

It could be really cool if someone could help me.

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