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Question by togie · Apr 30, 2015 at 05:53 AM · rigidbody2dphysics2d

Move 3+ rigidbody2D's together when only adding force to one

What i am trying to accomplish is a jet effect, where the are say 3 objects all with ridgidbody2d's on them 2 are jets and the center is the body, and parent of the 2 jets.

What i would like would be able to do is to add force to one of the jets and have it rotate all 3 of the rigidbodys.

I can almost get this effect with the distance joint 2d but they spin around the center location instead of being fixed in one location.

I would go about this another way but i need to use rigidbodys for a "center of mass" effect

Think of this as a platform with jets in a side scroller

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Answer by togie · May 04, 2015 at 10:35 AM

I was able to attach a slider joint with limits both set to 0 on the jets and anchor them to the parent. If there is another way please fill me in!

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Answer by JoelSeidel · Apr 30, 2015 at 07:00 PM

Make the center the parent in the hierarchy. The other elements will stay at the same orientation to it.

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avatar image togie · May 03, 2015 at 11:48 PM 0
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not if all three are rigidbodys and you attempt to add force to a child. only the child will move.

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Answer by Klinton · Apr 30, 2015 at 11:49 PM

Do you want to spin your "joint model" with center in "Parent"? Like spinning in place?

Try to add force to Jet#2 with value "-20". OR lock position of "Parent" and allow only rotation...

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