CommandOutputPacket.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\DataDecodeException;
use pmmp\encoding\VarInt;
use pocketmine\network\mcpe\protocol\serializer\CommonTypes;
use pocketmine\network\mcpe\protocol\types\command\CommandOriginData;
use pocketmine\network\mcpe\protocol\types\command\CommandOutputMessage;
use function count;
 
class CommandOutputPacket extends DataPacket implements ClientboundPacket{
    public const NETWORK_ID = ProtocolInfo::COMMAND_OUTPUT_PACKET;
 
    public const TYPE_LAST = 1;
    public const TYPE_SILENT = 2;
    public const TYPE_ALL = 3;
    public const TYPE_DATA_SET = 4;
 
    public CommandOriginData $originData;
    public int $outputType;
    public int $successCount;
    public array $messages = [];
    public string $unknownString;
 
    protected function decodePayload(ByteBufferReader $in) : void{
        $this->originData = CommonTypes::getCommandOriginData($in);
        $this->outputType = Byte::readUnsigned($in);
        $this->successCount = VarInt::readUnsignedInt($in);
 
        for($i = 0, $size = VarInt::readUnsignedInt($in); $i < $size; ++$i){
            $this->messages[] = $this->getCommandMessage($in);
        }
 
        if($this->outputType === self::TYPE_DATA_SET){
            $this->unknownString = CommonTypes::getString($in);
        }
    }
 
    protected function getCommandMessage(ByteBufferReader $in) : CommandOutputMessage{
        $message = new CommandOutputMessage();
 
        $message->isInternal = CommonTypes::getBool($in);
        $message->messageId = CommonTypes::getString($in);
 
        for($i = 0, $size = VarInt::readUnsignedInt($in); $i < $size; ++$i){
            $message->parameters[] = CommonTypes::getString($in);
        }
 
        return $message;
    }
 
    protected function encodePayload(ByteBufferWriter $out) : void{
        CommonTypes::putCommandOriginData($out, $this->originData);
        Byte::writeUnsigned($out, $this->outputType);
        VarInt::writeUnsignedInt($out, $this->successCount);
 
        VarInt::writeUnsignedInt($out, count($this->messages));
        foreach($this->messages as $message){
            $this->putCommandMessage($message, $out);
        }
 
        if($this->outputType === self::TYPE_DATA_SET){
            CommonTypes::putString($out, $this->unknownString);
        }
    }
 
    protected function putCommandMessage(CommandOutputMessage $message, ByteBufferWriter $out) : void{
        CommonTypes::putBool($out, $message->isInternal);
        CommonTypes::putString($out, $message->messageId);
 
        VarInt::writeUnsignedInt($out, count($message->parameters));
        foreach($message->parameters as $parameter){
            CommonTypes::putString($out, $parameter);
        }
    }
 
    public function handle(PacketHandlerInterface $handler) : bool{
        return $handler->handleCommandOutput($this);
    }
}