lerp cycle

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class LerpCycle : MonoBehaviour {

    public Transform start;
    public Transform end;
    public float frequency;


	// Use this for initialization
	IEnumerator Start () {

        float startTime = Time.time;

        while (true)
        {
            float cycle = Mathf.Sin(frequency * Time.time); // -1 to 1
            cycle += 1; // 0 to 2
            cycle /= 2; // 0 to 1

            transform.position = Vector3.Lerp(start.position, end.position, cycle);
            yield return null;
        }

    }

}