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

public class XX : MonoBehaviour {

    private Vector3 pos;
    private int a = 1;

	void Start () {
        pos = transform.position;
	}
	void Update () {
        pos.x += 0.03f * a;

        if(pos.x > 5)
        {
            a = -1;
        }
        else if(pos.x < -5)
        {
            a = 1;
        }

        //pos.y = 0.5f * ((pos.x) * (pos.x));
        pos.y = 0.5f * Mathf.Pow(pos.x, 2);

        transform.position = pos;
	}
}