void OnDisable()
{
UnitDeathEvent.UnregisterListener(OnEnemyUnitDeath);
EnemyAttackEvent.UnregisterListener(OnEnemyUnitAttack);
LeftMouseSelectEvent.UnregisterListener(OnLeftMouseSelected);
RightMouseSelectEvent.UnregisterListener(OnRightMouseClick);
PlayerAttackEvent.UnregisterListener(OnAttacked);
}
