EnemyAI

using UnityEngine;
using System.Collections;

public class EnemyAi : MonoBehaviour
{
    //I feel like this shouldn't be explained
    public Transform pointA;
    public Transform pointB;
    //How fast it moves
    public float speed;

    // Update is called once per frame
    void Update()
    {
        //Usng a Sin Fuction we will this object will move to pos A and pos B forever
        transform.position = Vector3.Lerp(pointA.position, pointB.position, Mathf.Sin(Time.time * speed));
    }
}