private void OnTriggerEnter(Collider other)
{
if (other.tag == "Player")
{
GameObject startbg = GameObject.Find("startbg");
Destroy(startbg);
Transform threeBg = GameManager._instance.threeBg;
firstbg.position = new Vector3(threeBg.position.x + 10, firstbg.position.y, firstbg.position.z);
GameManager._instance.threeBg = firstbg;
pipe1.RandomPos();
pipe2.RandomPos();
}
}
