C# Mathf.PingPong Rotate Back and Forth

Questions & Answers
1

I’ve been trying to get my gameobject to rotate back and forth using Mathf.PingPong. It only goes from origin to rotFl. I need it to go from origin to rotFl then switch to from origin to -rotFl. Any ideas for what I should put in the if statement so that the switch occurs? I’m thinking it’s something like if it retreats back to origin but I’m not sure.

	public float rotFl;
	// Use this for initialization
	void Start () {
	
	}
	
	// Update is called once per frame
	void Update () {
		transform.localEulerAngles = new Vector3(0, 0, Mathf.PingPong(Time.time * 50, rotFl));
		/*if( check something so that switch occurs){
		transform.localEulerAngles = new Vector3(0, 0, Mathf.PingPong(Time.time * 50, -rotFl));	
		}*/
	}
2

Read this:

PingPong only makes the value from 0 to length, never negative.

So in order to do what you need, you put a negative right in front of Mathf.PingPong()

transform.localEulerAngles = new Vector3(0, 0, -Mathf.PingPong(Time.time * 50, rotFl));
3

Firstly you should not modify directly eular angels use Quaternion instead. My code sample uses y direction to rotate

 transform.rotation = Quaternion.Euler(defaultRot.x,Mathf.PingPong(Time.time * speed, rotFL*2)-rotFL, defaultRot.z);

    private void Awake()
    {
        speed=50;
        defaultRot = rotation.eulerAngles;
    }