void OnCollisionEnter(Collision other)
{
if (other.gameObject.tag == "Underground") {
Rigidbody rb = this.gameObject.GetComponent <Rigidbody >();
rb.AddForce(new Vector3(0, 10, 0), ForceMode.Impulse);
} else if (other.gameObject.tag == "Item") {
ItemBehaviour ib = other.gameObject.GetComponent <ItemBehaviour >();
ib.PlayerCollided();
}
}
