MapInfoRequestPacket.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 pocketmine\network\mcpe\protocol\serializer\CommonTypes;
use pocketmine\network\mcpe\protocol\types\MapImage;
use pocketmine\network\mcpe\protocol\types\MapInfoRequestPacketClientPixel;
use function count;
 
class MapInfoRequestPacket extends DataPacket implements ServerboundPacket{
    public const NETWORK_ID = ProtocolInfo::MAP_INFO_REQUEST_PACKET;
 
    public int $mapId;
    public array $clientPixels = [];
 
    public static function create(int $mapId, array $clientPixels) : self{
        $result = new self;
        $result->mapId = $mapId;
        $result->clientPixels = $clientPixels;
        return $result;
    }
 
    protected function decodePayload(ByteBufferReader $in) : void{
        $this->mapId = CommonTypes::getActorUniqueId($in);
 
        $this->clientPixels = [];
        $count = LE::readUnsignedInt($in);
        if($count > MapImage::MAX_HEIGHT * MapImage::MAX_WIDTH){
            throw new PacketDecodeException("Too many pixels");
        }
        for($i = 0; $i < $count; $i++){
            $this->clientPixels[] = MapInfoRequestPacketClientPixel::read($in);
        }
    }
 
    protected function encodePayload(ByteBufferWriter $out) : void{
        CommonTypes::putActorUniqueId($out, $this->mapId);
 
        LE::writeUnsignedInt($out, count($this->clientPixels));
        foreach($this->clientPixels as $pixel){
            $pixel->write($out);
        }
    }
 
    public function handle(PacketHandlerInterface $handler) : bool{
        return $handler->handleMapInfoRequest($this);
    }
}