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Question by Andrii · Jan 15, 2017 at 02:54 PM · axisanglevectorvector2angles

How to find direction Vector for a collision surface?

Basically I have two Vector2s: velocityBefore and velocityAfter, and I want to find a vector of a collision surface like shown in an image. It needs to point in a direction of velocityAfter, so if the ball on the picture would come in a reverse direction, the surface vector would point the other way. Is there a build-in method I can use for this or maybe it can be achieved just by some formula?

alt text

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Answer by Andrii · Jan 15, 2017 at 03:10 PM

Okay, that was super dumb of me. It's just a sum of those two vectors divided by two. Urgh!!

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