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A forum post by Squalphin

Unfortunately grouping objects together, while one of the grouped objects should rotate independently, did not work for me. The object which should rotate did not move together with the group. I tried to play with "Moveable" and other settings, but nothing really worked.

I solved the issue as follows:

I wanted to make a tank with a freely rotating cannon. What I did was, I put both objects, as usual, in a group together. Obsiously made sure that nothing is set to moveable. Then I put a "Tag" on the location where the turret should be located at. The Tag has an "SST" (Scene Space Transformation) output. I took that and wired it into a microchip which is attached to the cannon. This microchip has the rotation logic only for the cannon.

I added a "Follower" chip and on the third tab, there is an input called "Target Position". So I took the SST from the Tag, wired it into a "Splitter", and then wired the position output into the "Target Position" of the "Follower" chip. The "Follower" chip is configured with 100% strength and dampening. Speed is set to 50 m/s but this depends on the game. May be set faster if needed.

As a result, the cannon follows the tag position exactly, but is still able to rotate freely.
I hope this helps anyone who struggles with the same issue.

PS: Teleporters would be better for the job, but unfortunately do not have a position input.

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