pocketmine\level\Level::tickChunks PHP Метод

    private function tickChunks()
    {
        if ($this->chunksPerTick <= 0 or count($this->loaders) === 0) {
            $this->chunkTickList = [];
            return;
        }
        $chunksPerLoader = min(200, max(1, (int) (($this->chunksPerTick - count($this->loaders)) / count($this->loaders) + 0.5)));
        $randRange = 3 + $chunksPerLoader / 30;
        $randRange = (int) ($randRange > $this->chunkTickRadius ? $this->chunkTickRadius : $randRange);
        foreach ($this->loaders as $loader) {
            $chunkX = $loader->getX() >> 4;
            $chunkZ = $loader->getZ() >> 4;
            $index = Level::chunkHash($chunkX, $chunkZ);
            $existingLoaders = max(0, isset($this->chunkTickList[$index]) ? $this->chunkTickList[$index] : 0);
            $this->chunkTickList[$index] = $existingLoaders + 1;
            for ($chunk = 0; $chunk < $chunksPerLoader; ++$chunk) {
                $dx = mt_rand(-$randRange, $randRange);
                $dz = mt_rand(-$randRange, $randRange);
                $hash = Level::chunkHash($dx + $chunkX, $dz + $chunkZ);
                if (!isset($this->chunkTickList[$hash]) and isset($this->chunks[$hash])) {
                    $this->chunkTickList[$hash] = -1;
                }
            }
        }
        $blockTest = 0;
        foreach ($this->chunkTickList as $index => $loaders) {
            Level::getXZ($index, $chunkX, $chunkZ);
            if (!isset($this->chunks[$index]) or ($chunk = $this->getChunk($chunkX, $chunkZ, false)) === null) {
                unset($this->chunkTickList[$index]);
                continue;
            } elseif ($loaders <= 0) {
                unset($this->chunkTickList[$index]);
            }
            foreach ($chunk->getEntities() as $entity) {
                $entity->scheduleUpdate();
            }
            if ($this->useSections) {
                foreach ($chunk->getSections() as $section) {
                    if (!$section instanceof EmptyChunkSection) {
                        $Y = $section->getY();
                        $k = mt_rand(0, 0x7fffffff);
                        for ($i = 0; $i < 3; ++$i, $k >>= 10) {
                            $x = $k & 0xf;
                            $y = $k >> 8 & 0xf;
                            $z = $k >> 16 & 0xf;
                            $blockId = $section->getBlockId($x, $y, $z);
                            if (isset($this->randomTickBlocks[$blockId])) {
                                $class = $this->randomTickBlocks[$blockId];
                                /** @var Block $block */
                                $block = new $class($section->getBlockData($x, $y, $z));
                                $block->x = $chunkX * 16 + $x;
                                $block->y = ($Y << 4) + $y;
                                $block->z = $chunkZ * 16 + $z;
                                $block->level = $this;
                                $block->onUpdate(self::BLOCK_UPDATE_RANDOM);
                            }
                        }
                    }
                }
            } else {
                for ($Y = 0; $Y < 8 and ($Y < 3 or $blockTest !== 0); ++$Y) {
                    $blockTest = 0;
                    $k = mt_rand(0, 0x7fffffff);
                    for ($i = 0; $i < 3; ++$i, $k >>= 10) {
                        $x = $k & 0xf;
                        $y = $k >> 8 & 0xf;
                        $z = $k >> 16 & 0xf;
                        $blockTest |= $blockId = $chunk->getBlockId($x, $y + ($Y << 4), $z);
                        if (isset($this->randomTickBlocks[$blockId])) {
                            $class = $this->randomTickBlocks[$blockId];
                            /** @var Block $block */
                            $block = new $class($chunk->getBlockData($x, $y + ($Y << 4), $z));
                            $block->x = $chunkX * 16 + $x;
                            $block->y = ($Y << 4) + $y;
                            $block->z = $chunkZ * 16 + $z;
                            $block->level = $this;
                            $block->onUpdate(self::BLOCK_UPDATE_RANDOM);
                        }
                    }
                }
            }
        }
        if ($this->clearChunksOnTick) {
            $this->chunkTickList = [];
        }
    }