private void Awake()
{
instance = this;
allyCollisions = new List <BattleUnit>(3);
enemyCollisions = new List <BattleUnit>(4);
CircleCollider2D circleCollider = GetComponentInChildren <CircleCollider2D>(true);
circleCollider.gameObject.SetActive(false);
m_circleCollider = new System.Tuple <CircleCollider2D, SpriteRenderer>(circleCollider, circleCollider.GetComponentInChildren <SpriteRenderer>());
m_circleCollider.Item1.GetComponent <CollisionCallbacks2D>().TriggerEnter2D += TriggerEnter2D;
m_circleCollider.Item1.GetComponent <CollisionCallbacks2D>().TriggerExit2D += TriggerExit2D;
BoxCollider2D boxCollider = GetComponentInChildren <BoxCollider2D>(true);
boxCollider.gameObject.SetActive(false);
m_boxCollider = new System.Tuple <BoxCollider2D, SpriteRenderer>(boxCollider, boxCollider.GetComponentInChildren <SpriteRenderer>());
m_boxCollider.Item1.GetComponent <CollisionCallbacks2D>().TriggerEnter2D += TriggerEnter2D;
m_boxCollider.Item1.GetComponent <CollisionCallbacks2D>().TriggerExit2D += TriggerExit2D;
m_activeCollider = new System.Tuple <Collider2D, SpriteRenderer>(m_boxCollider.Item1, m_boxCollider.Item2);
}