2D Background Generator

Hey guys,

I’m wondering if it’s possible to implement a 2D Background Generator where the background image is randomly selected from an array. I could have just created a long texture for the background, but I want the background to be different each time the game is played. This is the script I have so far:

using UnityEngine;
using System.Collections;

public class BackgroundGenerator : MonoBehaviour 
{
	public float scrollSpeed = 0.5f;
	private Vector2 savedOffset;

	//Use this for initialization
	void Start () 
	{
		savedOffset = renderer.sharedMaterial.GetTextureOffset ("_MainTex");
	}
	
	//Update is called once per frame
	void Update () 
	{

		#region Scrolling Texture

		float y = Mathf.Repeat (Time.time * scrollSpeed, 1);
		Vector2 offset = new Vector2 (savedOffset.x, y);
		renderer.sharedMaterial.SetTextureOffset ("_MainTex", offset);

		#endregion
	
	}

}

If I am reading it right, you want to tile a series of separate textures in a random order, as opposed to picking a single one each time to play? You could try making a shader with two textures, and pick a new texture for whichever texture is offscreen at the time.