pocketmine\entity\Human::setXpLevel PHP 메소드

    public function setXpLevel(int $level) : bool
    {
        $this->server->getPluginManager()->callEvent($ev = new PlayerExperienceChangeEvent($this, $level, $this->getXpProgress()));
        if (!$ev->isCancelled()) {
            $this->attributeMap->getAttribute(Attribute::EXPERIENCE_LEVEL)->setValue($ev->getExpLevel());
            return true;
        }
        return false;
    }