DisconnectPacket.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 pocketmine\network\mcpe\protocol\serializer\PacketSerializer;
 
class DisconnectPacket extends DataPacket implements ClientboundPacket, ServerboundPacket{
    public const NETWORK_ID = ProtocolInfo::DISCONNECT_PACKET;
 
    public int $reason; //TODO: add constants / enum
    public ?string $message;
 
    public static function create(int $reason, ?string $message) : self{
        $result = new self;
        $result->reason = $reason;
        $result->message = $message;
        return $result;
    }
 
    public function canBeSentBeforeLogin() : bool{
        return true;
    }
 
    protected function decodePayload(PacketSerializer $in) : void{
        $this->reason = $in->getVarInt();
        $hideDisconnectionScreen = $in->getBool();
        $this->message = $hideDisconnectionScreen ? null : $in->getString();
    }
 
    protected function encodePayload(PacketSerializer $out) : void{
        $out->putVarInt($this->reason);
        $out->putBool($this->message === null);
        if($this->message !== null){
            $out->putString($this->message);
        }
    }
 
    public function handle(PacketHandlerInterface $handler) : bool{
        return $handler->handleDisconnect($this);
    }
}