gistfile1.txt

using UnityEngine;
using System.Collections;

public class EnemyHop : MonoBehaviour {

	public float JumpSpeed = 3.0f;
	public float Xposition = 7;
	public float Ywidth = 5;

	// Use this for initialization
	void Start () {

	}
	
	// Update is called once per frame
	void Update () {
		transform.position =  new Vector2( Xposition,Mathf.Abs( Mathf.Cos( Time.time * JumpSpeed )) * Ywidth );		
	}
	 
}