/// <summary>
/// Player picks up gem, play sound and update inventory
/// </summary>
/// <param name="collision"></param>
private void OnTriggerEnter2D(Collider2D collision)
{
if (collision.tag == "Player" && pickedUp == false)
{
pickedUp = true;
GetComponent <SpriteRenderer>().enabled = false;
ManagerUI.GotGem();
ManagerUI.score += 50;
GetComponent <AudioSource>().Play();
Destroy(gameObject, 1);
}
}