pocketmine\block\RedstoneSource::deactivateBlock PHP Метод

    public function deactivateBlock(Block $block)
    {
        $this->deactivateBlockWithoutWire($block);
        if ($block->getId() == Block::REDSTONE_WIRE) {
            /** @var RedstoneWire $wire */
            $wire = $block;
            $wire->calcSignal(0, RedstoneWire::OFF);
        }
    }