Unity Hovering Animation Behavior

HoverBob.cs

using UnityEngine;
using System.Collections;
using System;


public class HoverBob : MonoBehaviour {
	float originalY;
	public float floatSpeed = 1;
	
	public float floatStrength = 1;
	void Start()
	{
		this.originalY = this.transform.position.y;
	}
	
	void Update()
	{
		transform.position = new Vector3(transform.position.x,
		originalY + ((float)Math.Sin(Time.time*floatSpeed) * floatStrength),
		transform.position.z);
	}
}