Implement Turtle Shell (#5235)

src/data/bedrock/item/ItemSerializerDeserializerRegistrar.php

@@ -350,6 +350,7 @@ final class ItemSerializerDeserializerRegistrar{
 		$this->map1to1Item(Ids::SWEET_BERRIES, Items::SWEET_BERRIES());
 		$this->map1to1Item(Ids::TOTEM_OF_UNDYING, Items::TOTEM());
 		$this->map1to1Item(Ids::TROPICAL_FISH, Items::CLOWNFISH());
+		$this->map1to1Item(Ids::TURTLE_HELMET, Items::TURTLE_HELMET());
 		$this->map1to1Item(Ids::VILLAGER_SPAWN_EGG, Items::VILLAGER_SPAWN_EGG());
 		$this->map1to1Item(Ids::WARPED_SIGN, Items::WARPED_SIGN());
 		$this->map1to1Item(Ids::WATER_BUCKET, Items::WATER_BUCKET());

src/entity/Living.php

@@ -610,6 +610,13 @@ abstract class Living extends Entity{
 			if($this->doAirSupplyTick($tickDiff)){
 				$hasUpdate = true;
 			}
+
+			foreach($this->armorInventory->getContents() as $index => $item){
+				if($item->onTickWorn($this)){
+					$hasUpdate = true;
+					$this->armorInventory->setItem($index, $item);
+				}
+			}
 		}
 
 		if($this->attackTime > 0){

src/item/Item.php

@@ -36,6 +36,7 @@ use pocketmine\data\runtime\RuntimeDataReader;
 use pocketmine\data\runtime\RuntimeDataWriter;
 use pocketmine\data\SavedDataLoadingException;
 use pocketmine\entity\Entity;
+use pocketmine\entity\Living;
 use pocketmine\item\enchantment\EnchantmentInstance;
 use pocketmine\math\Vector3;
 use pocketmine\nbt\LittleEndianNbtSerializer;
@@ -559,6 +560,14 @@ class Item implements \JsonSerializable{
 		return false;
 	}
 
+	/**
+	 * Called when this item is being worn by an entity.
+	 * Returns whether it did something.
+	 */
+	public function onTickWorn(Living $entity) : bool{
+		return false;
+	}
+
 	/**
 	 * Returns the number of ticks a player must wait before activating this item again.
 	 */

src/item/ItemTypeIds.php

@@ -298,8 +298,9 @@ final class ItemTypeIds{
 	public const LINGERING_POTION = 20259;
 	public const FIRE_CHARGE = 20260;
 	public const SUSPICIOUS_STEW = 20261;
+	public const TURTLE_HELMET = 20262;
 
-	public const FIRST_UNUSED_ITEM_ID = 20262;
+	public const FIRST_UNUSED_ITEM_ID = 20263;
 
 	private static int $nextDynamicId = self::FIRST_UNUSED_ITEM_ID;
 

src/item/StringToItemParser.php

@@ -1486,6 +1486,7 @@ final class StringToItemParser extends StringToTParser{
 		$result->register("thick_potion", fn() => Items::POTION()->setType(PotionType::THICK()));
 		$result->register("thick_splash_potion", fn() => Items::SPLASH_POTION()->setType(PotionType::THICK()));
 		$result->register("totem", fn() => Items::TOTEM());
+		$result->register("turtle_helmet", fn() => Items::TURTLE_HELMET());
 		$result->register("turtle_master_potion", fn() => Items::POTION()->setType(PotionType::TURTLE_MASTER()));
 		$result->register("turtle_master_splash_potion", fn() => Items::SPLASH_POTION()->setType(PotionType::TURTLE_MASTER()));
 		$result->register("turtle_shell_piece", fn() => Items::SCUTE());

src/item/TurtleHelmet.php

@@ -0,0 +1,41 @@
+<?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\item;
+
+use pocketmine\entity\effect\EffectInstance;
+use pocketmine\entity\effect\VanillaEffects;
+use pocketmine\entity\Human;
+use pocketmine\entity\Living;
+
+class TurtleHelmet extends Armor{
+
+	public function onTickWorn(Living $entity) : bool{
+		if($entity instanceof Human && !$entity->isUnderwater()){
+			$entity->getEffects()->add(new EffectInstance(VanillaEffects::WATER_BREATHING(), 200, 0, false));
+			return true;
+		}
+
+		return false;
+	}
+}

src/item/VanillaItems.php

@@ -289,6 +289,7 @@ use pocketmine\world\World;
  * @method static SuspiciousStew SUSPICIOUS_STEW()
  * @method static SweetBerries SWEET_BERRIES()
  * @method static Totem TOTEM()
+ * @method static TurtleHelmet TURTLE_HELMET()
  * @method static SpawnEgg VILLAGER_SPAWN_EGG()
  * @method static ItemBlockWallOrFloor WARPED_SIGN()
  * @method static LiquidBucket WATER_BUCKET()
@@ -616,6 +617,7 @@ final class VanillaItems{
 		self::register("iron_helmet", new Armor(new IID(Ids::IRON_HELMET), "Iron Helmet", new ArmorTypeInfo(2, 166, ArmorInventory::SLOT_HEAD)));
 		self::register("leather_cap", new Armor(new IID(Ids::LEATHER_CAP), "Leather Cap", new ArmorTypeInfo(1, 56, ArmorInventory::SLOT_HEAD)));
 		self::register("netherite_helmet", new Armor(new IID(Ids::NETHERITE_HELMET), "Netherite Helmet", new ArmorTypeInfo(3, 408, ArmorInventory::SLOT_HEAD, 3, true)));
+		self::register("turtle_helmet", new TurtleHelmet(new IID(Ids::TURTLE_HELMET), "Turtle Shell", new ArmorTypeInfo(2, 276, ArmorInventory::SLOT_HEAD)));
 
 		self::register("chainmail_leggings", new Armor(new IID(Ids::CHAINMAIL_LEGGINGS), "Chainmail Leggings", new ArmorTypeInfo(4, 226, ArmorInventory::SLOT_LEGS)));
 		self::register("diamond_leggings", new Armor(new IID(Ids::DIAMOND_LEGGINGS), "Diamond Leggings", new ArmorTypeInfo(6, 496, ArmorInventory::SLOT_LEGS, 2)));