private void OnTriggerEnter2D(Collider2D collision)
{
if (collision.tag == "Egg")
{
health -= 0.25f;
Color old = r.material.color;
Color newc = new Color(old.r, old.g, old.b, old.a * 0.8f);
r.material.color = newc;
Destroy(collision.gameObject);
mGlobalBehavior.DestroyAnEgg();
}
}