using UnityEngine;
using System.Collections;

public class ScrollingBackground : MonoBehaviour {

	public float scrollSpeed = .1f;
	public Renderer rend;

	// Use this for initialization
	void Start () {
		rend = GetComponent<Renderer>();
	}

	// Update is called once per frame
	void Update () {
		// Time.time is time since the game began, vs. deltaTime, which is time since last frame
		float offset = Time.time * scrollSpeed;

		// texture offsets shift how the texture is drawn onto the 3D object, skewing its
		// UV coordinates; this results in a scrolling effect when applied on one axis
        rend.material.SetTextureOffset("_MainTex", new Vector2(offset, 0));

		// shown out of curiosity, in case this texture had an associated bump map
		rend.material.SetTextureOffset("_BumpMap", new Vector2(offset, 0));
	}
}