public override void Update(BaseTower entity, float delta)
{
entity.Targets = entity.Targets.Where(enemy => !enemy.IsDead()).ToList();
entity.CurrentTarget = entity.Targets.Count == 0 ? null : entity.Targets.First();
if (entity.CurrentTarget == null && entity.Targets.Count == 0)
{
entity.TowerStateMachine.ChangeState(Idle);
}
else
{
entity.TrackNextTarget(delta);
entity.Shoot(entity.CurrentTarget, delta);
}
}