pocketmine\level\Level::doChunkGarbageCollection PHP Метод

    public function doChunkGarbageCollection()
    {
        $this->timings->doChunkGC->startTiming();
        $X = null;
        $Z = null;
        foreach ($this->chunks as $index => $chunk) {
            if (!isset($this->unloadQueue[$index])) {
                Level::getXZ($index, $X, $Z);
                if (!$this->isSpawnChunk($X, $Z)) {
                    $this->unloadChunkRequest($X, $Z, true);
                }
            }
        }
        foreach ($this->provider->getLoadedChunks() as $chunk) {
            if (!isset($this->chunks[Level::chunkHash($chunk->getX(), $chunk->getZ())])) {
                $this->provider->unloadChunk($chunk->getX(), $chunk->getZ(), false);
            }
        }
        $this->provider->doGarbageCollection();
        $this->timings->doChunkGC->stopTiming();
    }