PreSpawnPacketHandler.php

<?php
 
/*
 *
 *  ____            _        _   __  __ _                  __  __ ____
 * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
 * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
 * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
 * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
 *
 * This program 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.
 *
 * @author PocketMine Team
 * @link http://www.pocketmine.net/
 *
 *
 */
 
declare(strict_types=1);
 
namespace pocketmine\network\mcpe\handler;
 
use pocketmine\nbt\tag\CompoundTag;
use pocketmine\network\mcpe\cache\CraftingDataCache;
use pocketmine\network\mcpe\cache\StaticPacketCache;
use pocketmine\network\mcpe\InventoryManager;
use pocketmine\network\mcpe\NetworkSession;
use pocketmine\network\mcpe\protocol\ItemRegistryPacket;
use pocketmine\network\mcpe\protocol\PlayerAuthInputPacket;
use pocketmine\network\mcpe\protocol\RequestChunkRadiusPacket;
use pocketmine\network\mcpe\protocol\StartGamePacket;
use pocketmine\network\mcpe\protocol\types\BlockPosition;
use pocketmine\network\mcpe\protocol\types\BoolGameRule;
use pocketmine\network\mcpe\protocol\types\CacheableNbt;
use pocketmine\network\mcpe\protocol\types\DimensionIds;
use pocketmine\network\mcpe\protocol\types\Experiments;
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\SpawnSettings;
use pocketmine\player\Player;
use pocketmine\Server;
use pocketmine\timings\Timings;
use pocketmine\VersionInfo;
use Ramsey\Uuid\Uuid;
use function sprintf;
 
class PreSpawnPacketHandler extends PacketHandler{
    public function __construct(
        private Server $server,
        private Player $player,
        private NetworkSession $session,
        private InventoryManager $inventoryManager
    ){}
 
    public function setUp() : void{
        Timings::$playerNetworkSendPreSpawnGameData->startTiming();
        try{
            $location = $this->player->getLocation();
            $world = $location->getWorld();
 
            $typeConverter = $this->session->getTypeConverter();
 
            $this->session->getLogger()->debug("Preparing StartGamePacket");
            $levelSettings = new LevelSettings();
            $levelSettings->seed = -1;
            $levelSettings->spawnSettings = new SpawnSettings(SpawnSettings::BIOME_TYPE_DEFAULT, "", DimensionIds::OVERWORLD); //TODO: implement this properly
            $levelSettings->worldGamemode = $typeConverter->coreGameModeToProtocol($this->server->getGamemode());
            $levelSettings->difficulty = $world->getDifficulty();
            $levelSettings->spawnPosition = BlockPosition::fromVector3($world->getSpawnLocation());
            $levelSettings->hasAchievementsDisabled = true;
            $levelSettings->time = $world->getTime();
            $levelSettings->eduEditionOffer = 0;
            $levelSettings->rainLevel = 0; //TODO: implement these properly
            $levelSettings->lightningLevel = 0;
            $levelSettings->commandsEnabled = true;
            $levelSettings->gameRules = [
                "naturalregeneration" => new BoolGameRule(false, false), //Hack for client side regeneration
                "locatorbar" => new BoolGameRule(false, false) //Disable client-side tracking of nearby players
            ];
            $levelSettings->experiments = new Experiments([], false);
 
            $this->session->sendDataPacket(StartGamePacket::create(
                $this->player->getId(),
                $this->player->getId(),
                $typeConverter->coreGameModeToProtocol($this->player->getGamemode()),
                $this->player->getOffsetPosition($location),
                $location->pitch,
                $location->yaw,
                new CacheableNbt(CompoundTag::create()), //TODO: we don't care about this right now
                $levelSettings,
                "",
                $this->server->getMotd(),
                "",
                false,
                new PlayerMovementSettings(0, true),
                0,
                0,
                "",
                true,
                sprintf("%s %s", VersionInfo::NAME, VersionInfo::VERSION()->getFullVersion(true)),
                Uuid::fromString(Uuid::NIL),
                false,
                false,
                false,
                new NetworkPermissions(disableClientSounds: true),
                [],
                0,
            ));
 
            $this->session->getLogger()->debug("Sending items");
            $this->session->sendDataPacket(ItemRegistryPacket::create($typeConverter->getItemTypeDictionary()->getEntries()));
 
            $this->session->getLogger()->debug("Sending actor identifiers");
            $this->session->sendDataPacket(StaticPacketCache::getInstance()->getAvailableActorIdentifiers());
 
            $this->session->getLogger()->debug("Sending biome definitions");
            $this->session->sendDataPacket(StaticPacketCache::getInstance()->getBiomeDefs());
 
            $this->session->getLogger()->debug("Sending attributes");
            $this->session->getEntityEventBroadcaster()->syncAttributes([$this->session], $this->player, $this->player->getAttributeMap()->getAll());
 
            $this->session->getLogger()->debug("Sending available commands");
            $this->session->syncAvailableCommands();
 
            $this->session->getLogger()->debug("Sending abilities");
            $this->session->syncAbilities($this->player);
            $this->session->syncAdventureSettings();
 
            $this->session->getLogger()->debug("Sending effects");
            foreach($this->player->getEffects()->all() as $effect){
                $this->session->getEntityEventBroadcaster()->onEntityEffectAdded([$this->session], $this->player, $effect, false);
            }
 
            $this->session->getLogger()->debug("Sending actor metadata");
            $this->player->sendData([$this->player]);
 
            $this->session->getLogger()->debug("Sending inventory");
            $this->inventoryManager->syncAll();
            $this->inventoryManager->syncSelectedHotbarSlot();
 
            $this->session->getLogger()->debug("Sending creative inventory data");
            $this->inventoryManager->syncCreative();
 
            $this->session->getLogger()->debug("Sending crafting data");
            $this->session->sendDataPacket(CraftingDataCache::getInstance()->getCache($this->server->getCraftingManager()));
 
            $this->session->getLogger()->debug("Sending player list");
            $this->session->syncPlayerList($this->server->getOnlinePlayers());
        }finally{
            Timings::$playerNetworkSendPreSpawnGameData->stopTiming();
        }
    }
 
    public function handleRequestChunkRadius(RequestChunkRadiusPacket $packet) : bool{
        $this->player->setViewDistance($packet->radius);
 
        return true;
    }
 
    public function handlePlayerAuthInput(PlayerAuthInputPacket $packet) : bool{
        //the client will send this every tick once we start sending chunks, but we don't handle it in this stage
        //this is very spammy so we filter it out
        return true;
    }
}