Why i can't see Fixed Angle option in Rigidbody2D in the new Unity5?

Question

That's it, i can't see the option in the inspector. I saw it in the old Unity4 but i can't do it now in unity 5. Also, it is in the 5.10 version. Please help me, i'm newbie haha.

Answer 1

In Unity 5.1, the fixed angle effect is done via Rigidbody2D.constraints.

GetComponent<Rigidbody2D>().constraints = RigidbodyConstraints2D.FreezeRotation;

See also RigidbodyConstraints2D.