Need help to modify rotation script. (Quaternion)

Hi,just a simple script,who rotates target around x axis when “v” button is pressed. Anyway i cant figure out how to make that target rotates on y axis,i already tried to edit Vector3.up to Vector3.down,yes it rotates target on y axis,but when i again press “v” button it somehow changes to x axis. So all i want is to make that target only rotates on y axis by pressing “v” button and when pressing again it goes back to its position ( +180 and then -180 “y”) Can someone PLEASE modify this script that it works like i want? Please guys. :slight_smile: i Know its need to be done with Quaternion.Euler but HOW? PLEASE HELP!

using UnityEngine;
using System.Collections;

public class NewBehaviourScript : MonoBehaviour {

public float smooth = 1f;

private Quaternion targetRotation;

void Update ()

{

if(Input.GetKeyDown(KeyCode.V))

targetRotation = Quaternion.LookRotation(-transform.forward, Vector3.up);

transform.rotation = Quaternion.Slerp(transform.rotation, targetRotation, smooth * Time.deltaTime);

  }
}

maybe this’s what you want:

void Update()
{
    //choose any one you like
    if(Input.GetKeyDown(KeyCode.V))
    {
        //use transform function
        transform.RotateAround(transform.position, Vector3.up, 180 );
        //use quaternion
        transform.rotation *= Quaternion.AngleAxis(180, Vector3.up);
        //use eulerAngles
        transform.eulerAngles += new Vector3(0, 180, 0);
    }
}