Implement Medicine (from Education Edition) (#5450)

src/data/bedrock/MedicineTypeIdMap.php

@@ -0,0 +1,66 @@
+<?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;
+
+use pocketmine\item\MedicineType;
+use pocketmine\utils\SingletonTrait;
+
+final class MedicineTypeIdMap{
+	use SingletonTrait;
+
+	/**
+	 * @var MedicineType[]
+	 * @phpstan-var array<int, MedicineType>
+	 */
+	private array $idToEnum = [];
+
+	/**
+	 * @var int[]
+	 * @phpstan-var array<int, int>
+	 */
+	private array $enumToId = [];
+
+	private function __construct(){
+		$this->register(MedicineTypeIds::ANTIDOTE, MedicineType::ANTIDOTE());
+		$this->register(MedicineTypeIds::ELIXIR, MedicineType::ELIXIR());
+		$this->register(MedicineTypeIds::EYE_DROPS, MedicineType::EYE_DROPS());
+		$this->register(MedicineTypeIds::TONIC, MedicineType::TONIC());
+	}
+
+	private function register(int $id, MedicineType $type) : void{
+		$this->idToEnum[$id] = $type;
+		$this->enumToId[$type->id()] = $id;
+	}
+
+	public function fromId(int $id) : ?MedicineType{
+		return $this->idToEnum[$id] ?? null;
+	}
+
+	public function toId(MedicineType $type) : int{
+		if(!isset($this->enumToId[$type->id()])){
+			throw new \InvalidArgumentException("Type does not have a mapped ID");
+		}
+		return $this->enumToId[$type->id()];
+	}
+}

src/data/bedrock/MedicineTypeIds.php

@@ -0,0 +1,31 @@
+<?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;
+
+final class MedicineTypeIds{
+	public const EYE_DROPS = 0;
+	public const TONIC = 1;
+	public const ANTIDOTE = 2;
+	public const ELIXIR = 3;
+}

src/data/bedrock/item/ItemSerializerDeserializerRegistrar.php

@@ -34,11 +34,13 @@ use pocketmine\data\bedrock\CompoundTypeIds;
 use pocketmine\data\bedrock\DyeColorIdMap;
 use pocketmine\data\bedrock\item\ItemTypeNames as Ids;
 use pocketmine\data\bedrock\item\SavedItemData as Data;
+use pocketmine\data\bedrock\MedicineTypeIdMap;
 use pocketmine\data\bedrock\PotionTypeIdMap;
 use pocketmine\data\bedrock\SuspiciousStewTypeIdMap;
 use pocketmine\item\Banner;
 use pocketmine\item\Dye;
 use pocketmine\item\Item;
+use pocketmine\item\Medicine;
 use pocketmine\item\Potion;
 use pocketmine\item\SplashPotion;
 use pocketmine\item\SuspiciousStew;
@@ -466,6 +468,14 @@ final class ItemSerializerDeserializerRegistrar{
 			},
 			fn(Banner $item) => DyeColorIdMap::getInstance()->toInvertedId($item->getColor())
 		);
+		$this->map1to1ItemWithMeta(
+			Ids::MEDICINE,
+			Items::MEDICINE(),
+			function(Medicine $item, int $meta) : void{
+				$item->setType(MedicineTypeIdMap::getInstance()->fromId($meta) ?? throw new ItemTypeDeserializeException("Unknown medicine type ID $meta"));
+			},
+			fn(Medicine $item) => MedicineTypeIdMap::getInstance()->toId($item->getType())
+		);
 		$this->map1to1ItemWithMeta(
 			Ids::POTION,
 			Items::POTION(),