NetworkSettingsPacket.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\Byte;
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\CompressionAlgorithm;
 
class NetworkSettingsPacket extends DataPacket implements ClientboundPacket{
    public const NETWORK_ID = ProtocolInfo::NETWORK_SETTINGS_PACKET;
 
    public const COMPRESS_NOTHING = 0;
    public const COMPRESS_EVERYTHING = 1;
 
    private int $compressionThreshold;
    private int $compressionAlgorithm;
    private bool $enableClientThrottling;
    private int $clientThrottleThreshold;
    private float $clientThrottleScalar;
 
    public static function create(int $compressionThreshold, int $compressionAlgorithm, bool $enableClientThrottling, int $clientThrottleThreshold, float $clientThrottleScalar) : self{
        $result = new self;
        $result->compressionThreshold = $compressionThreshold;
        $result->compressionAlgorithm = $compressionAlgorithm;
        $result->enableClientThrottling = $enableClientThrottling;
        $result->clientThrottleThreshold = $clientThrottleThreshold;
        $result->clientThrottleScalar = $clientThrottleScalar;
        return $result;
    }
 
    public function canBeSentBeforeLogin() : bool{
        return true;
    }
 
    public function getCompressionThreshold() : int{
        return $this->compressionThreshold;
    }
 
    public function getCompressionAlgorithm() : int{ return $this->compressionAlgorithm; }
 
    public function isEnableClientThrottling() : bool{ return $this->enableClientThrottling; }
 
    public function getClientThrottleThreshold() : int{ return $this->clientThrottleThreshold; }
 
    public function getClientThrottleScalar() : float{ return $this->clientThrottleScalar; }
 
    protected function decodePayload(ByteBufferReader $in) : void{
        $this->compressionThreshold = LE::readUnsignedShort($in);
        $this->compressionAlgorithm = LE::readUnsignedShort($in);
        $this->enableClientThrottling = CommonTypes::getBool($in);
        $this->clientThrottleThreshold = Byte::readUnsigned($in);
        $this->clientThrottleScalar = LE::readFloat($in);
    }
 
    protected function encodePayload(ByteBufferWriter $out) : void{
        LE::writeUnsignedShort($out, $this->compressionThreshold);
        LE::writeUnsignedShort($out, $this->compressionAlgorithm);
        CommonTypes::putBool($out, $this->enableClientThrottling);
        Byte::writeUnsigned($out, $this->clientThrottleThreshold);
        LE::writeFloat($out, $this->clientThrottleScalar);
    }
 
    public function handle(PacketHandlerInterface $handler) : bool{
        return $handler->handleNetworkSettings($this);
    }
}