nested_alonzo_arm

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Alonzo waves his nested arm alright but there was a problem when he hits the edge

1) if I let both alonzo and the arm  rotate then alonzo turns upside down (expected)
2) If I set both alonzo and the arm to only face left right then the arm doesn't wave (expected)
3) If I set alonzo to only face left right and the arm to rotate then the arm goes to the wrong position when travelling right to left. Now SOLVED by asking alonzo for his direction and adjusting before flapping. Thanks to cymplecy @ Forum