pocketmine\block\PumpkinStem::onUpdate PHP Метод

    public function onUpdate($type)
    {
        if ($type === Level::BLOCK_UPDATE_NORMAL) {
            if ($this->getSide(0)->isTransparent()) {
                $this->getLevel()->useBreakOn($this);
                return Level::BLOCK_UPDATE_NORMAL;
            }
        } elseif ($type === Level::BLOCK_UPDATE_RANDOM) {
            if (mt_rand(0, 2) == 1) {
                if ($this->meta < 0x7) {
                    $block = clone $this;
                    ++$block->meta;
                    Server::getInstance()->getPluginManager()->callEvent($ev = new BlockGrowEvent($this, $block));
                    if (!$ev->isCancelled()) {
                        $this->getLevel()->setBlock($this, $ev->getNewState(), true);
                    }
                    return Level::BLOCK_UPDATE_RANDOM;
                } else {
                    for ($side = 2; $side <= 5; ++$side) {
                        $b = $this->getSide($side);
                        if ($b->getId() === self::PUMPKIN) {
                            return Level::BLOCK_UPDATE_RANDOM;
                        }
                    }
                    $side = $this->getSide(mt_rand(2, 5));
                    $d = $side->getSide(0);
                    if ($side->getId() === self::AIR and ($d->getId() === self::FARMLAND or $d->getId() === self::GRASS or $d->getId() === self::DIRT)) {
                        Server::getInstance()->getPluginManager()->callEvent($ev = new BlockGrowEvent($side, new Pumpkin()));
                        if (!$ev->isCancelled()) {
                            $this->getLevel()->setBlock($side, $ev->getNewState(), true);
                        }
                    }
                }
            }
            return Level::BLOCK_UPDATE_RANDOM;
        }
        return false;
    }