How to make an object turn then stop at a certain rotation.y when using physics?

So I am not really sure how to go about this at all. I am trying to have an object spin when the player walks into the object (lets call it Turnstile). When the player walks to the Turnstile, it spins using a rigidbody. When this Turnstile spins to 150 (on the y axis of rotation) it should lock and not move anymore. I have been looking around the internet and I see people having code dealing with Time.deltaTime and having their objects always spinning but mine is being pushed by the player. I am not really sure how to go about this at all and was wondering if anyone had ideas. Thank you in advance!

Important note: I have the X Y Z of the position frozen and the X Z of rotation frozen so this object is only meant to turn on the Y rotation axis

 

Sounds like you need to use a lerp not physics. I assume you're doing an on trigger enter.

Something like this might work. I'm sure I'm missing some peace of the code. but it's close. I sometime have to use eulerAngles
transform.rotation.eulerAngles

Code (CSharp):

1.  
2. public class MyClass : MonoBehaviour {
3.  
4. public Vector3 startMarker;
5. public Vector3 endMarker;
6. public float speed = 1.0F;
7. private float startTime;
8. private float journeyLength;
9.  
10. void OnTriggerEnter()
11. {
12.  
13. startMarker = transform.rotation;
14.  
15. endMarker = new Vector3(0,150,0);
16.  
17. startTime = Time.time;
18.  
19. journeyLength = Vector3.Distance(startMarker, endMarker);
20.  
21. float distCovered = (Time.time - startTime) * speed;
22.  
23. float fracJourney = distCovered / journeyLength;
24.  
25. transform.rotation = Vector3.Lerp(startMarker, endMarker, fracJourney);
26.  
27. }
28.  
29. }

 

other wise you could build an if statement of function to check what the current y value is and then disable the rigidbody.

"not real code"
if(door.rotaion.y == 150)
{
rigidbody.velocity = 0;
rigidbody.enable = false;
}