mirror of
https://github.com/pmmp/PocketMine-MP.git
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113 lines
4.5 KiB
PHP
113 lines
4.5 KiB
PHP
<?php
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/*
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*
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* ____ _ _ __ __ _ __ __ ____
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* | _ \ ___ ___| | _____| |_| \/ (_)_ __ ___ | \/ | _ \
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* | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
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* | __/ (_) | (__| < __/ |_| | | | | | | | __/_____| | | | __/
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* |_| \___/ \___|_|\_\___|\__|_| |_|_|_| |_|\___| |_| |_|_|
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* @author PocketMine Team
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* @link http://www.pocketmine.net/
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*
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*
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*/
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declare(strict_types=1);
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namespace pocketmine\network\mcpe\convert;
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use pocketmine\data\bedrock\block\BlockStateData;
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use pocketmine\data\bedrock\block\BlockStateSerializeException;
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use pocketmine\data\bedrock\block\BlockStateSerializer;
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use pocketmine\data\bedrock\block\BlockTypeNames;
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use pocketmine\utils\AssumptionFailedError;
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use pocketmine\utils\SingletonTrait;
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use pocketmine\utils\Utils;
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use pocketmine\world\format\io\GlobalBlockStateHandlers;
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use Webmozart\PathUtil\Path;
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use function file_get_contents;
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/**
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* @internal
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*/
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final class RuntimeBlockMapping{
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use SingletonTrait;
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/**
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* @var int[]
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* @phpstan-var array<int, int>
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*/
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private array $networkIdCache = [];
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/** Used when a blockstate can't be correctly serialized (e.g. because it's unknown) */
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private BlockStateData $fallbackStateData;
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private int $fallbackStateId;
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private static function make() : self{
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$canonicalBlockStatesFile = Path::join(\pocketmine\BEDROCK_DATA_PATH, "canonical_block_states.nbt");
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$canonicalBlockStatesRaw = Utils::assumeNotFalse(file_get_contents($canonicalBlockStatesFile), "Missing required resource file");
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$metaMappingFile = Path::join(\pocketmine\BEDROCK_DATA_PATH, 'block_state_meta_map.json');
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$metaMappingRaw = Utils::assumeNotFalse(file_get_contents($metaMappingFile), "Missing required resource file");
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return new self(
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BlockStateDictionary::loadFromString($canonicalBlockStatesRaw, $metaMappingRaw),
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GlobalBlockStateHandlers::getSerializer()
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);
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}
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public function __construct(
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private BlockStateDictionary $blockStateDictionary,
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private BlockStateSerializer $blockStateSerializer
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){
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$this->fallbackStateId = $this->blockStateDictionary->lookupStateIdFromData(
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new BlockStateData(BlockTypeNames::INFO_UPDATE, [], BlockStateData::CURRENT_VERSION)
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) ?? throw new AssumptionFailedError(BlockTypeNames::INFO_UPDATE . " should always exist");
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//lookup the state data from the dictionary to avoid keeping two copies of the same data around
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$this->fallbackStateData = $this->blockStateDictionary->getDataFromStateId($this->fallbackStateId) ?? throw new AssumptionFailedError("We just looked up this state data, so it must exist");
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}
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public function toRuntimeId(int $internalStateId) : int{
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if(isset($this->networkIdCache[$internalStateId])){
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return $this->networkIdCache[$internalStateId];
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}
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try{
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$blockStateData = $this->blockStateSerializer->serialize($internalStateId);
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$networkId = $this->blockStateDictionary->lookupStateIdFromData($blockStateData);
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if($networkId === null){
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throw new AssumptionFailedError("Unmapped blockstate returned by blockstate serializer: " . $blockStateData->toNbt());
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}
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}catch(BlockStateSerializeException){
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//TODO: this will swallow any error caused by invalid block properties; this is not ideal, but it should be
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//covered by unit tests, so this is probably a safe assumption.
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$networkId = $this->fallbackStateId;
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}
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return $this->networkIdCache[$internalStateId] = $networkId;
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}
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/**
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* Looks up the network state data associated with the given internal state ID.
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*/
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public function toStateData(int $internalStateId) : BlockStateData{
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//we don't directly use the blockstate serializer here - we can't assume that the network blockstate NBT is the
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//same as the disk blockstate NBT, in case we decide to have different world version than network version (or in
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//case someone wants to implement multi version).
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$networkRuntimeId = $this->toRuntimeId($internalStateId);
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return $this->blockStateDictionary->getDataFromStateId($networkRuntimeId) ?? throw new AssumptionFailedError("We just looked up this state ID, so it must exist");
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}
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public function getBlockStateDictionary() : BlockStateDictionary{ return $this->blockStateDictionary; }
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public function getFallbackStateData() : BlockStateData{ return $this->fallbackStateData; }
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}
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