C# translation of http://u3d.as/content/perflexive-media/floatate/2Fe

Floatate1.cs

using UnityEngine;
using System.Collections;

public class Floatate1 : MonoBehaviour {

/**************************************
 * Copyright (c) 2012, Timothy Thomas *
 *        Some rights reserved.       *
 **************************************/
//converted to C# by Matt "Trip" Maker

public float bobSpeed = 3.0f;  //Bob speed
public float bobHeight = 0.5f; //Bob height
public float bobOffset = 0.0f;

public float PrimaryRot = 80.0f;  //First axies degrees per second
public float SecondaryRot = 40.0f; //Second axies degrees per second
public float TertiaryRot = 20.0f;  //Third axies degrees per second

private float bottom;

//@script AddComponentMenu("Perflexive Media/Floatate")

void Awake () {
	if (bobSpeed < 0) {
		Debug.LogWarning("Negative object bobSpeed value! May result in undesired behavior. Continuing anyway.", gameObject);
	}
	
	if (bobHeight < 0) {
		Debug.LogWarning("Negative object bobHeight value! May result in undesired behavior. Continuing anyway.", gameObject);
	}
	
	bottom = transform.position.y;
}

void Update () {
	transform.Rotate(new Vector3(0, PrimaryRot, 0) * Time.deltaTime, Space.World);
	transform.Rotate(new Vector3(SecondaryRot, 0, 0) * Time.deltaTime, Space.Self);
	transform.Rotate(new Vector3(0, 0, TertiaryRot) * Time.deltaTime, Space.Self);
	
	transform.position = new Vector3(transform.position.x, bottom + (((Mathf.Cos((Time.time + bobOffset) * bobSpeed) + 1) / 2 ) * bobHeight), transform.position.z);
}
	
}