Collisions between moving ball and polygons

Posted by miguelSantirso on Game Development See other posts from Game Development or by miguelSantirso
Published on 2012-05-01T13:11:47Z Indexed on 2012/09/05 21:51 UTC
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Filed under:

XNA

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2d

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collision-detection

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2d-physics

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collision-resolution

I know this is a very typical problem and that there area a lot of similar questions, but I have been looking for a while and I have not found anything that fits what I want.

I am developing a 2D game in which I need to perform collisions between a ball and simple polygons. The polygons are defined as an array of vertices.

I have implemented the collisions with the bounding boxes of the polygons (that was easy) and I need to refine that collision in the cases where the ball collides with the bounding box. The ball can move quite fast and the polygons are not too big so I need to perform continuous collisions.

I am looking for a method that allows me to detect if the ball collides with a polygon and, at the same time, calculate the new direction for the ball after bouncing in the polygon.

(I am using XNA, in case that helps)

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