using UnityEngine;
using System.Collections;

/*
  This script is used to make move an object in a hover-like
  motion - or to be more precise, in a sinus pattern.

  The public parameters are:
    Frequency   -- sets the speed of the motion
    Amplitude   -- sets the distance travelled by the motion
    Time Offset -- shifts the movement in time
                   (useful when using the script on multiple objects)
    Move X,Y,Z  -- set the direction in which the object should hover

*/

public class AnimateTexture : MonoBehaviour {

  // Setting default script parameters
	public float speedX = 1.0f;
	public float speedY = 1.0f;

  // Private variables for internal script parameters
	private Renderer r;
	private Vector2 offset;

	void Start () 
	{
		// Create a reference for the renderer component
		r = GetComponent<Renderer>();
	}

	void Update()
	{
		// Determine the texture offset, multiply by time since start and speed,
		// and apply to the material
		offset = new Vector2 (Time.time * speedX, Time.time * speedY );
		r.material.SetTextureOffset ("_MainTex", offset);

	}
}