void OnCollisionEnter(Collision collision)
{
if (collision.gameObject.tag == "Food")
{
energy += creatureManager.foodEnergy;
Destroy(collision.gameObject);
}
if (collision.gameObject.tag == "Creature")
{
Creature other = collision.gameObject.GetComponent <Creature>();
if (size >= 2 * other.size)
{
energy += creatureManager.creatureEatEnergy;
creatureManager.Eat(other);
}
}
}