Unity Decay

using UnityEngine;
using System.Collections;


public class Decay : MonoBehaviour {

    public float time_ms = 1000.0f;
    private float TimeToDie = 0.0f;


    // Use this for initialization
    void Start () {
        TimeToDie = Time.time + time_ms/1000.0f;
    }

    // Update is called once per frame
    void Update () {
        if (TimeToDie != 0.0f && Time.time > TimeToDie)
        {
            Destroy(gameObject);
        }
    }
}