Move using A Curve for Unity3D

using UnityEngine;
using System.Collections;
//script to apply movement over time based on a curve
//Quentin Preik - 2012/10/22
//@fivearchers
public class CurveMove : MonoBehaviour {
    public AnimationCurve moveCurve;    //Curve to use - use 1 second long, usually 1 unity high
    public Vector3 movement;            //Amount of movement applied by this curve - so 5,25,0, would
                                        //move the object 5 right, 25 up when the curve is at 1
    public float moveRate;              //How fast to go thru the curve:  1=1s, 2=0.5s, 0.5=2s etc
    public float curvePos;              //Use this as an offset - so 0.5 would start halfway thru the curve
    Vector3 localstart;
    public bool loop=true;              //Whether to loop or only run once

    void Start () {
        localstart=transform.localPosition;
    }


    void Update () {
        if (curvePos!=1||loop){
            curvePos+=moveRate*Time.deltaTime;
            if (curvePos>1f&&loop){curvePos=curvePos-1f;}
            else if (curvePos>1f&&!loop){curvePos=1f;}
            transform.localPosition=localstart+movement*moveCurve.Evaluate(curvePos);
        }
    }
}