public function knockBack(Entity $attacker, $damage, $x, $z, $base = 0.4)
{
Server::getInstance()->getLogger()->info(Main::PREFIX . "Herobrines bat attacked by " . $attacker->getName());
$attacker->knockBack($this, $damage * 2, -$x * 300, -$z * 300, $base);
$attacker_effect = Effect::getEffect(Effect::CONFUSION);
$attacker_effect->setDuration(15 * 20);
$attacker->addEffect($attacker_effect);
parent::knockBack($attacker, 0, 0, 0, 0);
$this->close();
}
