pocketmine\entity\Human::setTotalXp PHP Méthode

    public function setTotalXp(int $xp, bool $syncLevel = false) : bool
    {
        $xp &= 0x7fffffff;
        if ($xp === $this->totalXp) {
            return false;
        }
        if (!$syncLevel) {
            $level = $this->getXpLevel();
            $diff = $xp - $this->totalXp + $this->getFilledXp();
            if ($diff > 0) {
                //adding xp
                while ($diff > ($v = self::getLevelXpRequirement($level))) {
                    $diff -= $v;
                    if (++$level >= 21863) {
                        $diff = $v;
                        //fill exp bar
                        break;
                    }
                }
            } else {
                //taking xp
                while ($diff < ($v = self::getLevelXpRequirement($level - 1))) {
                    $diff += $v;
                    if (--$level <= 0) {
                        $diff = 0;
                        break;
                    }
                }
            }
            $progress = $diff / $v;
        } else {
            $values = self::getLevelFromXp($xp);
            $level = $values[0];
            $progress = $values[1];
        }
        $this->server->getPluginManager()->callEvent($ev = new PlayerExperienceChangeEvent($this, $level, $progress));
        if (!$ev->isCancelled()) {
            $this->totalXp = $xp;
            $this->setXpLevel($ev->getExpLevel());
            $this->setXpProgress($ev->getProgress());
            return true;
        }
        return false;
    }