Watch this video in context on Unity’s learning pages here –
http:/unity3d.com/learn/tutorials/modules/beginner/2d/distancejoint2d
The Distance Joint 2D allows a sprite controlled by 2D Physics to rotate around a point, but maintain a certain distance from that point. In this video, we cover the basics of the 2D Distance Joint and how to use it.
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http://amara.org/v/V67e/
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