parallax infinite background
using UnityEngine;
public class Parallex : MonoBehaviour {
private float length, startPos;
public GameObject cam;
public float parallexEffect;
void Start () {
startPos = transform.position.x;
length = GetComponent<SpriteRenderer>().bounds.size.x;
}
void FixedUpdate () {
float temp = (cam.transform.position.x * (1-parallexEffect));
float dist = (cam.transform.position.x*parallexEffect);
transform.position = new Vector3(startPos + dist, transform.position.y, transform.position.z);
if (temp > startPos + length) startPos += length;
else if (temp < startPos - length) startPos -= length;
}
}