unity rotate aroud and stop code example

Example 1: rotatearound unity

using UnityEngine;//Attach this script to a GameObject to rotate around the target position.
public class Example : MonoBehaviour
{
    private Vector3 target = new Vector3(5.0f, 0.0f, 0.0f);    void Update()
    {
        // Spin the object around the world origin at 20 degrees/second.
        transform.RotateAround(target, Vector3.up, 30 * Time.deltaTime);
    }
}

Example 2: unity smoothly rotate

private float desiredRot;     public float rotSpeed = 250;     public float damping = 10;      private void OnEnable() {         desiredRot = transform.eulerAngles.z;     }      private void Update() {         if (Input.GetMouseButton(0)) {              if (Input.mousePosition.x > Screen.width / 2) desiredRot -= rotSpeed * Time.deltaTime;              else desiredRot += rotSpeed * Time.deltaTime;          }          var desiredRotQ = Quaternion.Euler(transform.eulerAngles.x, transform.eulerAngles.y, desiredRot);         transform.rotation = Quaternion.Lerp(transform.rotation, desiredRotQ, Time.deltaTime * damping);     }