pocketmine\level\Level::__construct PHP Method

    public function __construct(Server $server, string $name, string $path, string $provider)
    {
        $this->blockStates = Block::$fullList;
        $this->levelId = static::$levelIdCounter++;
        $this->blockMetadata = new BlockMetadataStore($this);
        $this->server = $server;
        $this->autoSave = $server->getAutoSave();
        /** @var LevelProvider $provider */
        if (is_subclass_of($provider, LevelProvider::class, true)) {
            $this->provider = new $provider($this, $path);
        } else {
            throw new LevelException("Provider is not a subclass of LevelProvider");
        }
        $this->server->getLogger()->info($this->server->getLanguage()->translateString("pocketmine.level.preparing", [$this->provider->getName()]));
        $this->generator = Generator::getGenerator($this->provider->getGenerator());
        $this->blockOrder = $provider::getProviderOrder();
        $this->useSections = $provider::usesChunkSection();
        $this->folderName = $name;
        $this->updateQueue = new ReversePriorityQueue();
        $this->updateQueue->setExtractFlags(\SplPriorityQueue::EXTR_BOTH);
        $this->time = (int) $this->provider->getTime();
        $this->chunkTickRadius = min($this->server->getViewDistance(), max(1, (int) $this->server->getProperty("chunk-ticking.tick-radius", 4)));
        $this->chunksPerTick = (int) $this->server->getProperty("chunk-ticking.per-tick", 40);
        $this->chunkGenerationQueueSize = (int) $this->server->getProperty("chunk-generation.queue-size", 8);
        $this->chunkPopulationQueueSize = (int) $this->server->getProperty("chunk-generation.population-queue-size", 2);
        $this->chunkTickList = [];
        $this->clearChunksOnTick = (bool) $this->server->getProperty("chunk-ticking.clear-tick-list", true);
        $this->cacheChunks = (bool) $this->server->getProperty("chunk-sending.cache-chunks", false);
        $this->timings = new LevelTimings($this);
        $this->temporalPosition = new Position(0, 0, 0, $this);
        $this->temporalVector = new Vector3(0, 0, 0);
        $this->tickRate = 1;
        $this->weather = new Weather($this, 0);
        if ($this->server->netherEnabled and $this->server->netherName == $this->folderName) {
            $this->setDimension(self::DIMENSION_NETHER);
        } else {
            $this->setDimension(self::DIMENSION_NORMAL);
        }
        if ($this->server->weatherEnabled and $this->getDimension() == self::DIMENSION_NORMAL) {
            WeatherManager::registerLevel($this);
            $this->weather->setCanCalculate(true);
        } else {
            $this->weather->setCanCalculate(false);
        }
    }