SubChunkRequestPacket.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\types\SubChunkPosition;
use pocketmine\network\mcpe\protocol\types\SubChunkPositionOffset;
use function count;
 
class SubChunkRequestPacket extends DataPacket implements ServerboundPacket{
    public const NETWORK_ID = ProtocolInfo::SUB_CHUNK_REQUEST_PACKET;
 
    private int $dimension;
    private SubChunkPosition $basePosition;
    private array $entries;
 
    public static function create(int $dimension, SubChunkPosition $basePosition, array $entries) : self{
        $result = new self;
        $result->dimension = $dimension;
        $result->basePosition = $basePosition;
        $result->entries = $entries;
        return $result;
    }
 
    public function getDimension() : int{ return $this->dimension; }
 
    public function getBasePosition() : SubChunkPosition{ return $this->basePosition; }
 
    public function getEntries() : array{ return $this->entries; }
 
    protected function decodePayload(ByteBufferReader $in) : void{
        $this->dimension = VarInt::readSignedInt($in);
        $this->basePosition = SubChunkPosition::read($in);
 
        $this->entries = [];
        for($i = 0, $count = LE::readUnsignedInt($in); $i < $count; $i++){
            $this->entries[] = SubChunkPositionOffset::read($in);
        }
    }
 
    protected function encodePayload(ByteBufferWriter $out) : void{
        VarInt::writeSignedInt($out, $this->dimension);
        $this->basePosition->write($out);
 
        LE::writeUnsignedInt($out, count($this->entries));
        foreach($this->entries as $entry){
            $entry->write($out);
        }
    }
 
    public function handle(PacketHandlerInterface $handler) : bool{
        return $handler->handleSubChunkRequest($this);
    }
}