I want this spike ball to move in a circular motion at a certain spot. Like this:
<img src="http://imageshack.com/a/img825/9821/xxj8.png" border="0" />
but I don't see an option for that. It sounds like a sine behavior...but i'm not quite sure.
One of the simplest methods would be to use the pin behaviour.
Create a spike ball and then create a middle object which you will pin the spike to. This middle object, when rotated, rotates the spike ball :)
You can download an example Capx at ROTATING OBJECTS
Hope this helps :)
There's nothing on that link. And I still don't quite understand.
one second will check link :)
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Whoops here is the example I made :)
Two sine behaviors would do the trick too. Just set one behavior with a period offset of 25% for anti-clockwise rotation and 75% for clockwise rotation.