UpdateSubChunkBlocksPacket.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\VarInt;
use pocketmine\network\mcpe\protocol\serializer\CommonTypes;
use pocketmine\network\mcpe\protocol\types\BlockPosition;
use pocketmine\network\mcpe\protocol\types\UpdateSubChunkBlocksPacketEntry;
use function count;
 
class UpdateSubChunkBlocksPacket extends DataPacket implements ClientboundPacket{
    public const NETWORK_ID = ProtocolInfo::UPDATE_SUB_CHUNK_BLOCKS_PACKET;
 
    private BlockPosition $baseBlockPosition;
 
    private array $layer0Updates;
    private array $layer1Updates;
 
    public static function create(BlockPosition $baseBlockPosition, array $layer0Updates, array $layer1Updates) : self{
        $result = new self;
        $result->baseBlockPosition = $baseBlockPosition;
        $result->layer0Updates = $layer0Updates;
        $result->layer1Updates = $layer1Updates;
        return $result;
    }
 
    public function getBaseBlockPosition() : BlockPosition{ return $this->baseBlockPosition; }
 
    public function getLayer0Updates() : array{ return $this->layer0Updates; }
 
    public function getLayer1Updates() : array{ return $this->layer1Updates; }
 
    protected function decodePayload(ByteBufferReader $in) : void{
        $this->baseBlockPosition = CommonTypes::getBlockPosition($in);
        $this->layer0Updates = [];
        for($i = 0, $count = VarInt::readUnsignedInt($in); $i < $count; ++$i){
            $this->layer0Updates[] = UpdateSubChunkBlocksPacketEntry::read($in);
        }
        $this->layer1Updates = [];
        for($i = 0, $count = VarInt::readUnsignedInt($in); $i < $count; ++$i){
            $this->layer1Updates[] = UpdateSubChunkBlocksPacketEntry::read($in);
        }
    }
 
    protected function encodePayload(ByteBufferWriter $out) : void{
        CommonTypes::putBlockPosition($out, $this->baseBlockPosition);
        VarInt::writeUnsignedInt($out, count($this->layer0Updates));
        foreach($this->layer0Updates as $update){
            $update->write($out);
        }
        VarInt::writeUnsignedInt($out, count($this->layer1Updates));
        foreach($this->layer1Updates as $update){
            $update->write($out);
        }
    }
 
    public function handle(PacketHandlerInterface $handler) : bool{
        return $handler->handleUpdateSubChunkBlocks($this);
    }
}