Namespace rename

src/data/bedrock/block/BlockStateData.php

@@ -0,0 +1,95 @@
+<?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\data\bedrock\block;
+
+use pocketmine\nbt\NbtException;
+use pocketmine\nbt\tag\CompoundTag;
+use function array_keys;
+use function count;
+use function implode;
+
+/**
+ * Contains the common information found in a serialized blockstate.
+ */
+final class BlockStateData{
+	/**
+	 * Bedrock version of the most recent backwards-incompatible change to blockstates.
+	 */
+	public const CURRENT_VERSION =
+		(1 << 24) | //major
+		(18 << 16) | //minor
+		(10 << 8) | //patch
+		(1); //revision
+
+	public const TAG_NAME = "name";
+	public const TAG_STATES = "states";
+	public const TAG_VERSION = "version";
+
+	public function __construct(
+		private string $name,
+		private CompoundTag $states,
+		private int $version
+	){}
+
+	public function getName() : string{ return $this->name; }
+
+	public function getStates() : CompoundTag{ return $this->states; }
+
+	public function getVersion() : int{ return $this->version; }
+
+	/**
+	 * @throws BlockStateDeserializeException
+	 */
+	public static function fromNbt(CompoundTag $nbt) : self{
+		try{
+			$name = $nbt->getString(self::TAG_NAME);
+			$states = $nbt->getCompoundTag(self::TAG_STATES) ?? throw new BlockStateDeserializeException("Missing tag \"" . self::TAG_STATES . "\"");
+			$version = $nbt->getInt(self::TAG_VERSION, 0);
+		}catch(NbtException $e){
+			throw new BlockStateDeserializeException($e->getMessage(), 0, $e);
+		}
+
+		$allKeys = $nbt->getValue();
+		unset($allKeys[self::TAG_NAME], $allKeys[self::TAG_STATES], $allKeys[self::TAG_VERSION]);
+		if(count($allKeys) !== 0){
+			throw new BlockStateDeserializeException("Unexpected extra keys: " . implode(", ", array_keys($allKeys)));
+		}
+
+		return new self($name, $states, $version);
+	}
+
+	public function toNbt() : CompoundTag{
+		return CompoundTag::create()
+			->setString(self::TAG_NAME, $this->name)
+			->setInt(self::TAG_VERSION, $this->version)
+			->setTag(self::TAG_STATES, $this->states);
+	}
+
+	public function equals(self $that) : bool{
+		return
+			$this->name === $that->name &&
+			$this->states->equals($that->states) &&
+			$this->version === $that->version;
+	}
+}