// Use this for initialization
void OnCollisionEnter(Collision other)
{
if (other.gameObject.tag == "ball")
{
my_gamemanager.AddMoreLife(1);
}
hit_object = other.gameObject;
pos_1.y = other.gameObject.transform.position.y;
pos_2.y = other.gameObject.transform.position.y;
hit_object.GetComponent <Collider> ().enabled = false;
hit_object.GetComponent <Renderer> ().enabled = false;
StartCoroutine(WaitAndSpawn(wait_time));
}