StartGamePacket.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\math\Vector3;
use pocketmine\nbt\tag\CompoundTag;
use pocketmine\network\mcpe\protocol\serializer\CommonTypes;
use pocketmine\network\mcpe\protocol\types\BlockPaletteEntry;
use pocketmine\network\mcpe\protocol\types\CacheableNbt;
use pocketmine\network\mcpe\protocol\types\LevelSettings;
use pocketmine\network\mcpe\protocol\types\NetworkPermissions;
use pocketmine\network\mcpe\protocol\types\PlayerMovementSettings;
use pocketmine\network\mcpe\protocol\types\ServerJoinInformation;
use pocketmine\network\mcpe\protocol\types\ServerTelemetryData;
use Ramsey\Uuid\UuidInterface;
use function count;
 
class StartGamePacket extends DataPacket implements ClientboundPacket{
    public const NETWORK_ID = ProtocolInfo::START_GAME_PACKET;
 
    public int $actorUniqueId;
    public int $actorRuntimeId;
    public int $playerGamemode;
 
    public Vector3 $playerPosition;
 
    public float $pitch;
    public float $yaw;
 
    public CacheableNbt $playerActorProperties; //same as SyncActorPropertyPacket content
 
    public LevelSettings $levelSettings;
 
    public string $levelId = ""; //base64 string, usually the same as world folder name in vanilla
    public string $worldName;
    public string $premiumWorldTemplateId = "";
    public bool $isTrial = false;
    public PlayerMovementSettings $playerMovementSettings;
    public int $currentTick = 0; //only used if isTrial is true
    public int $enchantmentSeed = 0;
    public string $multiplayerCorrelationId = ""; //TODO: this should be filled with a UUID of some sort
    public bool $enableNewInventorySystem = false; //TODO
    public string $serverSoftwareVersion;
    public UuidInterface $worldTemplateId; //why is this here twice ??? mojang
    public bool $enableClientSideChunkGeneration;
    public bool $blockNetworkIdsAreHashes = false; //new in 1.19.80, possibly useful for multi version
    public NetworkPermissions $networkPermissions;
    public ?ServerJoinInformation $serverJoinInformation;
    public ServerTelemetryData $serverTelemetryData;
 
    public array $blockPalette = [];
 
    public int $blockPaletteChecksum;
 
    public static function create(
        int $actorUniqueId,
        int $actorRuntimeId,
        int $playerGamemode,
        Vector3 $playerPosition,
        float $pitch,
        float $yaw,
        CacheableNbt $playerActorProperties,
        LevelSettings $levelSettings,
        string $levelId,
        string $worldName,
        string $premiumWorldTemplateId,
        bool $isTrial,
        PlayerMovementSettings $playerMovementSettings,
        int $currentTick,
        int $enchantmentSeed,
        string $multiplayerCorrelationId,
        bool $enableNewInventorySystem,
        string $serverSoftwareVersion,
        UuidInterface $worldTemplateId,
        bool $enableClientSideChunkGeneration,
        bool $blockNetworkIdsAreHashes,
        NetworkPermissions $networkPermissions,
        ?ServerJoinInformation $serverJoinInformation,
        ServerTelemetryData $serverTelemetryData,
        array $blockPalette,
        int $blockPaletteChecksum,
    ) : self{
        $result = new self;
        $result->actorUniqueId = $actorUniqueId;
        $result->actorRuntimeId = $actorRuntimeId;
        $result->playerGamemode = $playerGamemode;
        $result->playerPosition = $playerPosition;
        $result->pitch = $pitch;
        $result->yaw = $yaw;
        $result->playerActorProperties = $playerActorProperties;
        $result->levelSettings = $levelSettings;
        $result->levelId = $levelId;
        $result->worldName = $worldName;
        $result->premiumWorldTemplateId = $premiumWorldTemplateId;
        $result->isTrial = $isTrial;
        $result->playerMovementSettings = $playerMovementSettings;
        $result->currentTick = $currentTick;
        $result->enchantmentSeed = $enchantmentSeed;
        $result->multiplayerCorrelationId = $multiplayerCorrelationId;
        $result->enableNewInventorySystem = $enableNewInventorySystem;
        $result->serverSoftwareVersion = $serverSoftwareVersion;
        $result->worldTemplateId = $worldTemplateId;
        $result->enableClientSideChunkGeneration = $enableClientSideChunkGeneration;
        $result->blockNetworkIdsAreHashes = $blockNetworkIdsAreHashes;
        $result->networkPermissions = $networkPermissions;
        $result->serverJoinInformation = $serverJoinInformation;
        $result->serverTelemetryData = $serverTelemetryData;
        $result->blockPalette = $blockPalette;
        $result->blockPaletteChecksum = $blockPaletteChecksum;
        return $result;
    }
 
    protected function decodePayload(ByteBufferReader $in) : void{
        $this->actorUniqueId = CommonTypes::getActorUniqueId($in);
        $this->actorRuntimeId = CommonTypes::getActorRuntimeId($in);
        $this->playerGamemode = VarInt::readSignedInt($in);
 
        $this->playerPosition = CommonTypes::getVector3($in);
 
        $this->pitch = LE::readFloat($in);
        $this->yaw = LE::readFloat($in);
 
        $this->levelSettings = LevelSettings::read($in);
 
        $this->levelId = CommonTypes::getString($in);
        $this->worldName = CommonTypes::getString($in);
        $this->premiumWorldTemplateId = CommonTypes::getString($in);
        $this->isTrial = CommonTypes::getBool($in);
        $this->playerMovementSettings = PlayerMovementSettings::read($in);
        $this->currentTick = LE::readUnsignedLong($in);
 
        $this->enchantmentSeed = VarInt::readSignedInt($in);
 
        $this->blockPalette = [];
        for($i = 0, $len = VarInt::readUnsignedInt($in); $i < $len; ++$i){
            $blockName = CommonTypes::getString($in);
            $state = CommonTypes::getNbtCompoundRoot($in);
            $this->blockPalette[] = new BlockPaletteEntry($blockName, new CacheableNbt($state));
        }
 
        $this->multiplayerCorrelationId = CommonTypes::getString($in);
        $this->enableNewInventorySystem = CommonTypes::getBool($in);
        $this->serverSoftwareVersion = CommonTypes::getString($in);
        $this->playerActorProperties = new CacheableNbt(CommonTypes::getNbtCompoundRoot($in));
        $this->blockPaletteChecksum = LE::readUnsignedLong($in);
        $this->worldTemplateId = CommonTypes::getUUID($in);
        $this->enableClientSideChunkGeneration = CommonTypes::getBool($in);
        $this->blockNetworkIdsAreHashes = CommonTypes::getBool($in);
        $this->networkPermissions = NetworkPermissions::decode($in);
        $this->serverJoinInformation = CommonTypes::readOptional($in, ServerJoinInformation::read(...));
        $this->serverTelemetryData = ServerTelemetryData::read($in);
    }
 
    protected function encodePayload(ByteBufferWriter $out) : void{
        CommonTypes::putActorUniqueId($out, $this->actorUniqueId);
        CommonTypes::putActorRuntimeId($out, $this->actorRuntimeId);
        VarInt::writeSignedInt($out, $this->playerGamemode);
 
        CommonTypes::putVector3($out, $this->playerPosition);
 
        LE::writeFloat($out, $this->pitch);
        LE::writeFloat($out, $this->yaw);
 
        $this->levelSettings->write($out);
 
        CommonTypes::putString($out, $this->levelId);
        CommonTypes::putString($out, $this->worldName);
        CommonTypes::putString($out, $this->premiumWorldTemplateId);
        CommonTypes::putBool($out, $this->isTrial);
        $this->playerMovementSettings->write($out);
        LE::writeUnsignedLong($out, $this->currentTick);
 
        VarInt::writeSignedInt($out, $this->enchantmentSeed);
 
        VarInt::writeUnsignedInt($out, count($this->blockPalette));
        foreach($this->blockPalette as $entry){
            CommonTypes::putString($out, $entry->getName());
            $out->writeByteArray($entry->getStates()->getEncodedNbt());
        }
 
        CommonTypes::putString($out, $this->multiplayerCorrelationId);
        CommonTypes::putBool($out, $this->enableNewInventorySystem);
        CommonTypes::putString($out, $this->serverSoftwareVersion);
        $out->writeByteArray($this->playerActorProperties->getEncodedNbt());
        LE::writeUnsignedLong($out, $this->blockPaletteChecksum);
        CommonTypes::putUUID($out, $this->worldTemplateId);
        CommonTypes::putBool($out, $this->enableClientSideChunkGeneration);
        CommonTypes::putBool($out, $this->blockNetworkIdsAreHashes);
        $this->networkPermissions->encode($out);
        CommonTypes::writeOptional($out, $this->serverJoinInformation, fn(ByteBufferWriter $out, ServerJoinInformation $info) => $info->write($out));
        $this->serverTelemetryData->write($out);
    }
 
    public function handle(PacketHandlerInterface $handler) : bool{
        return $handler->handleStartGame($this);
    }
}