ItemRegistryPacket.php

<?php
 
/*
 * This file is part of BedrockProtocol.
 * Copyright (C) 2014-2022 PocketMine Team <https://github.com/pmmp/BedrockProtocol>
 *
 * BedrockProtocol is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 */
 
declare(strict_types=1);
 
namespace pocketmine\network\mcpe\protocol;
 
use pmmp\encoding\ByteBufferReader;
use pmmp\encoding\ByteBufferWriter;
use pmmp\encoding\LE;
use pmmp\encoding\VarInt;
use pocketmine\network\mcpe\protocol\serializer\CommonTypes;
use pocketmine\network\mcpe\protocol\types\CacheableNbt;
use pocketmine\network\mcpe\protocol\types\ItemTypeEntry;
use function count;
 
class ItemRegistryPacket extends DataPacket implements ClientboundPacket{
    public const NETWORK_ID = ProtocolInfo::ITEM_REGISTRY_PACKET;
 
    private array $entries;
 
    public static function create(array $entries) : self{
        $result = new self;
        $result->entries = $entries;
        return $result;
    }
 
    public function getEntries() : array{ return $this->entries; }
 
    protected function decodePayload(ByteBufferReader $in) : void{
        $this->entries = [];
        for($i = 0, $len = VarInt::readUnsignedInt($in); $i < $len; ++$i){
            $stringId = CommonTypes::getString($in);
            $numericId = LE::readSignedShort($in);
            $isComponentBased = CommonTypes::getBool($in);
            $version = VarInt::readSignedInt($in);
            $nbt = CommonTypes::getNbtCompoundRoot($in);
            $this->entries[] = new ItemTypeEntry($stringId, $numericId, $isComponentBased, $version, new CacheableNbt($nbt));
        }
    }
 
    protected function encodePayload(ByteBufferWriter $out) : void{
        VarInt::writeUnsignedInt($out, count($this->entries));
        foreach($this->entries as $entry){
            CommonTypes::putString($out, $entry->getStringId());
            LE::writeSignedShort($out, $entry->getNumericId());
            CommonTypes::putBool($out, $entry->isComponentBased());
            VarInt::writeSignedInt($out, $entry->getVersion());
            $out->writeByteArray($entry->getComponentNbt()->getEncodedNbt());
        }
    }
 
    public function handle(PacketHandlerInterface $handler) : bool{
        return $handler->handleItemRegistry($this);
    }
}