Implement fortune enchantment (#5757)

src/block/Beetroot.php

@@ -23,9 +23,9 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\FortuneDropHelper;
 use pocketmine\item\Item;
 use pocketmine\item\VanillaItems;
-use function mt_rand;
 
 class Beetroot extends Crops{
 
@@ -33,7 +33,7 @@ class Beetroot extends Crops{
 		if($this->age >= self::MAX_AGE){
 			return [
 				VanillaItems::BEETROOT(),
-				VanillaItems::BEETROOT_SEEDS()->setCount(mt_rand(0, 3))
+				VanillaItems::BEETROOT_SEEDS()->setCount(FortuneDropHelper::binomial($item, 0))
 			];
 		}
 

src/block/Carrot.php

@@ -23,15 +23,15 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\FortuneDropHelper;
 use pocketmine\item\Item;
 use pocketmine\item\VanillaItems;
-use function mt_rand;
 
 class Carrot extends Crops{
 
 	public function getDropsForCompatibleTool(Item $item) : array{
 		return [
-			VanillaItems::CARROT()->setCount($this->age >= self::MAX_AGE ? mt_rand(1, 4) : 1)
+			VanillaItems::CARROT()->setCount($this->age >= self::MAX_AGE ? FortuneDropHelper::binomial($item, 1) : 1)
 		];
 	}
 

src/block/CoalOre.php

@@ -23,6 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\FortuneDropHelper;
 use pocketmine\item\Item;
 use pocketmine\item\VanillaItems;
 use function mt_rand;
@@ -31,7 +32,7 @@ class CoalOre extends Opaque{
 
 	public function getDropsForCompatibleTool(Item $item) : array{
 		return [
-			VanillaItems::COAL()
+			VanillaItems::COAL()->setCount(FortuneDropHelper::weighted($item, min: 1, maxBase: 1))
 		];
 	}
 

src/block/CopperOre.php

@@ -23,13 +23,16 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\FortuneDropHelper;
 use pocketmine\item\Item;
 use pocketmine\item\VanillaItems;
 
 final class CopperOre extends Opaque{
 
 	public function getDropsForCompatibleTool(Item $item) : array{
-		return [VanillaItems::RAW_COPPER()];
+		return [
+			VanillaItems::RAW_COPPER()->setCount(FortuneDropHelper::weighted($item, min: 2, maxBase: 5)),
+		];
 	}
 
 	public function isAffectedBySilkTouch() : bool{ return true; }

src/block/DiamondOre.php

@@ -23,6 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\FortuneDropHelper;
 use pocketmine\item\Item;
 use pocketmine\item\VanillaItems;
 use function mt_rand;
@@ -31,7 +32,7 @@ class DiamondOre extends Opaque{
 
 	public function getDropsForCompatibleTool(Item $item) : array{
 		return [
-			VanillaItems::DIAMOND()
+			VanillaItems::DIAMOND()->setCount(FortuneDropHelper::weighted($item, min: 1, maxBase: 1))
 		];
 	}
 

src/block/DoubleTallGrass.php

@@ -23,9 +23,8 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\FortuneDropHelper;
 use pocketmine\item\Item;
-use pocketmine\item\VanillaItems;
-use function mt_rand;
 
 class DoubleTallGrass extends DoublePlant{
 
@@ -34,8 +33,8 @@ class DoubleTallGrass extends DoublePlant{
 	}
 
 	public function getDropsForIncompatibleTool(Item $item) : array{
-		if($this->top && mt_rand(0, 7) === 0){
-			return [VanillaItems::WHEAT_SEEDS()];
+		if($this->top){
+			return FortuneDropHelper::grass($item);
 		}
 		return [];
 	}

src/block/EmeraldOre.php

@@ -23,6 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\FortuneDropHelper;
 use pocketmine\item\Item;
 use pocketmine\item\VanillaItems;
 use function mt_rand;
@@ -31,7 +32,7 @@ class EmeraldOre extends Opaque{
 
 	public function getDropsForCompatibleTool(Item $item) : array{
 		return [
-			VanillaItems::EMERALD()
+			VanillaItems::EMERALD()->setCount(FortuneDropHelper::weighted($item, min: 1, maxBase: 1))
 		];
 	}
 

src/block/GildedBlackstone.php

@@ -23,6 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\FortuneDropHelper;
 use pocketmine\item\Item;
 use pocketmine\item\VanillaItems;
 use function mt_rand;
@@ -30,7 +31,7 @@ use function mt_rand;
 final class GildedBlackstone extends Opaque{
 
 	public function getDropsForCompatibleTool(Item $item) : array{
-		if(mt_rand(1, 10) === 1){
+		if(FortuneDropHelper::bonusChanceDivisor($item, 10, 3)){
 			return [VanillaItems::GOLD_NUGGET()->setCount(mt_rand(2, 5))];
 		}
 

src/block/Glowstone.php

@@ -23,9 +23,10 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\FortuneDropHelper;
 use pocketmine\item\Item;
 use pocketmine\item\VanillaItems;
-use function mt_rand;
+use function min;
 
 class Glowstone extends Transparent{
 
@@ -35,7 +36,7 @@ class Glowstone extends Transparent{
 
 	public function getDropsForCompatibleTool(Item $item) : array{
 		return [
-			VanillaItems::GLOWSTONE_DUST()->setCount(mt_rand(2, 4))
+			VanillaItems::GLOWSTONE_DUST()->setCount(min(4, FortuneDropHelper::discrete($item, 2, 4)))
 		];
 	}
 

src/block/Gravel.php

@@ -25,15 +25,15 @@ namespace pocketmine\block;
 
 use pocketmine\block\utils\Fallable;
 use pocketmine\block\utils\FallableTrait;
+use pocketmine\block\utils\FortuneDropHelper;
 use pocketmine\item\Item;
 use pocketmine\item\VanillaItems;
-use function mt_rand;
 
 class Gravel extends Opaque implements Fallable{
 	use FallableTrait;
 
 	public function getDropsForCompatibleTool(Item $item) : array{
-		if(mt_rand(1, 10) === 1){
+		if(FortuneDropHelper::bonusChanceDivisor($item, 10, 3)){
 			return [
 				VanillaItems::FLINT()
 			];

src/block/LapisOre.php

@@ -23,6 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\FortuneDropHelper;
 use pocketmine\item\Item;
 use pocketmine\item\VanillaItems;
 use function mt_rand;
@@ -31,7 +32,7 @@ class LapisOre extends Opaque{
 
 	public function getDropsForCompatibleTool(Item $item) : array{
 		return [
-			VanillaItems::LAPIS_LAZULI()->setCount(mt_rand(4, 8))
+			VanillaItems::LAPIS_LAZULI()->setCount(FortuneDropHelper::weighted($item, min: 4, maxBase: 9))
 		];
 	}
 

src/block/Leaves.php

@@ -23,6 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\FortuneDropHelper;
 use pocketmine\block\utils\LeavesType;
 use pocketmine\block\utils\SupportType;
 use pocketmine\data\runtime\RuntimeDataDescriber;
@@ -138,7 +139,8 @@ class Leaves extends Transparent{
 		}
 
 		$drops = [];
-		if(mt_rand(1, 20) === 1){ //Saplings
+		if(FortuneDropHelper::bonusChanceDivisor($item, 20, 4)){ //Saplings
+			// TODO: according to the wiki, the jungle saplings have a different drop rate
 			$sapling = (match($this->leavesType){
 				LeavesType::ACACIA() => VanillaBlocks::ACACIA_SAPLING(),
 				LeavesType::BIRCH() => VanillaBlocks::BIRCH_SAPLING(),
@@ -155,10 +157,13 @@ class Leaves extends Transparent{
 				$drops[] = $sapling;
 			}
 		}
-		if(($this->leavesType->equals(LeavesType::OAK()) || $this->leavesType->equals(LeavesType::DARK_OAK())) && mt_rand(1, 200) === 1){ //Apples
+		if(
+			($this->leavesType->equals(LeavesType::OAK()) || $this->leavesType->equals(LeavesType::DARK_OAK())) &&
+			FortuneDropHelper::bonusChanceDivisor($item, 200, 20)
+		){ //Apples
 			$drops[] = VanillaItems::APPLE();
 		}
-		if(mt_rand(1, 50) === 1){
+		if(FortuneDropHelper::bonusChanceDivisor($item, 50, 5)){
 			$drops[] = VanillaItems::STICK()->setCount(mt_rand(1, 2));
 		}
 

src/block/Melon.php

@@ -23,15 +23,16 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\FortuneDropHelper;
 use pocketmine\item\Item;
 use pocketmine\item\VanillaItems;
-use function mt_rand;
+use function min;
 
 class Melon extends Opaque{
 
 	public function getDropsForCompatibleTool(Item $item) : array{
 		return [
-			VanillaItems::MELON()->setCount(mt_rand(3, 7))
+			VanillaItems::MELON()->setCount(min(9, FortuneDropHelper::discrete($item, 3, 7)))
 		];
 	}
 

src/block/NetherGoldOre.php

@@ -23,14 +23,14 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\FortuneDropHelper;
 use pocketmine\item\Item;
 use pocketmine\item\VanillaItems;
-use function mt_rand;
 
 final class NetherGoldOre extends Opaque{
 
 	public function getDropsForCompatibleTool(Item $item) : array{
-		return [VanillaItems::GOLD_NUGGET()->setCount(mt_rand(2, 6))];
+		return [VanillaItems::GOLD_NUGGET()->setCount(FortuneDropHelper::weighted($item, min: 2, maxBase: 6))];
 	}
 
 	public function isAffectedBySilkTouch() : bool{ return true; }

src/block/NetherQuartzOre.php

@@ -23,6 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\FortuneDropHelper;
 use pocketmine\item\Item;
 use pocketmine\item\VanillaItems;
 use function mt_rand;
@@ -31,7 +32,7 @@ class NetherQuartzOre extends Opaque{
 
 	public function getDropsForCompatibleTool(Item $item) : array{
 		return [
-			VanillaItems::NETHER_QUARTZ()
+			VanillaItems::NETHER_QUARTZ()->setCount(FortuneDropHelper::weighted($item, min: 1, maxBase: 1))
 		];
 	}
 

src/block/NetherVines.php

@@ -23,6 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\FortuneDropHelper;
 use pocketmine\block\utils\SupportType;
 use pocketmine\data\runtime\RuntimeDataDescriber;
 use pocketmine\entity\Entity;
@@ -179,7 +180,7 @@ class NetherVines extends Flowable{
 	}
 
 	public function getDropsForCompatibleTool(Item $item) : array{
-		if(($item->getBlockToolType() & BlockToolType::SHEARS) !== 0 || mt_rand(1, 3) === 1){
+		if(($item->getBlockToolType() & BlockToolType::SHEARS) !== 0 || FortuneDropHelper::bonusChanceFixed($item, 1 / 3, 2 / 9)){
 			return [$this->asItem()];
 		}
 		return [];

src/block/NetherWartPlant.php

@@ -23,6 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\FortuneDropHelper;
 use pocketmine\data\runtime\RuntimeDataDescriber;
 use pocketmine\event\block\BlockGrowEvent;
 use pocketmine\item\Item;
@@ -85,7 +86,7 @@ class NetherWartPlant extends Flowable{
 
 	public function getDropsForCompatibleTool(Item $item) : array{
 		return [
-			$this->asItem()->setCount($this->age === self::MAX_AGE ? mt_rand(2, 4) : 1)
+			$this->asItem()->setCount($this->age === self::MAX_AGE ? FortuneDropHelper::discrete($item, 2, 4) : 1)
 		];
 	}
 }

src/block/Potato.php

@@ -23,6 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\FortuneDropHelper;
 use pocketmine\item\Item;
 use pocketmine\item\VanillaItems;
 use function mt_rand;
@@ -31,7 +32,8 @@ class Potato extends Crops{
 
 	public function getDropsForCompatibleTool(Item $item) : array{
 		$result = [
-			VanillaItems::POTATO()->setCount($this->age >= self::MAX_AGE ? mt_rand(1, 5) : 1)
+			//min/max would be 2-5 in Java
+			VanillaItems::POTATO()->setCount($this->age >= self::MAX_AGE ? FortuneDropHelper::binomial($item, 1) : 1)
 		];
 		if($this->age >= self::MAX_AGE && mt_rand(0, 49) === 0){
 			$result[] = VanillaItems::POISONOUS_POTATO();

src/block/RedstoneOre.php

@@ -23,6 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\FortuneDropHelper;
 use pocketmine\data\runtime\RuntimeDataDescriber;
 use pocketmine\item\Item;
 use pocketmine\item\VanillaItems;
@@ -81,7 +82,7 @@ class RedstoneOre extends Opaque{
 
 	public function getDropsForCompatibleTool(Item $item) : array{
 		return [
-			VanillaItems::REDSTONE_DUST()->setCount(mt_rand(4, 5))
+			VanillaItems::REDSTONE_DUST()->setCount(FortuneDropHelper::discrete($item, 4, 5))
 		];
 	}
 

src/block/SeaLantern.php

@@ -23,8 +23,10 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\FortuneDropHelper;
 use pocketmine\item\Item;
 use pocketmine\item\VanillaItems;
+use function min;
 
 class SeaLantern extends Transparent{
 
@@ -34,7 +36,7 @@ class SeaLantern extends Transparent{
 
 	public function getDropsForCompatibleTool(Item $item) : array{
 		return [
-			VanillaItems::PRISMARINE_CRYSTALS()->setCount(3)
+			VanillaItems::PRISMARINE_CRYSTALS()->setCount(min(5, FortuneDropHelper::discrete($item, 2, 3)))
 		];
 	}
 

src/block/SweetBerryBush.php

@@ -23,6 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\FortuneDropHelper;
 use pocketmine\data\runtime\RuntimeDataDescriber;
 use pocketmine\entity\Entity;
 use pocketmine\entity\Living;
@@ -108,13 +109,14 @@ class SweetBerryBush extends Flowable{
 	}
 
 	public function getDropsForCompatibleTool(Item $item) : array{
-		if(($dropAmount = $this->getBerryDropAmount()) > 0){
-			return [
-				$this->asItem()->setCount($dropAmount)
-			];
-		}
-
-		return [];
+		$count = match($this->age){
+			self::STAGE_MATURE => FortuneDropHelper::discrete($item, 2, 3),
+			self::STAGE_BUSH_SOME_BERRIES => FortuneDropHelper::discrete($item, 1, 2),
+			default => 0
+		};
+		return [
+			$this->asItem()->setCount($count)
+		];
 	}
 
 	public function onNearbyBlockChange() : void{

src/block/TallGrass.php

@@ -23,13 +23,12 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\FortuneDropHelper;
 use pocketmine\item\Item;
-use pocketmine\item\VanillaItems;
 use pocketmine\math\Facing;
 use pocketmine\math\Vector3;
 use pocketmine\player\Player;
 use pocketmine\world\BlockTransaction;
-use function mt_rand;
 
 class TallGrass extends Flowable{
 
@@ -56,13 +55,7 @@ class TallGrass extends Flowable{
 	}
 
 	public function getDropsForIncompatibleTool(Item $item) : array{
-		if(mt_rand(0, 15) === 0){
-			return [
-				VanillaItems::WHEAT_SEEDS()
-			];
-		}
-
-		return [];
+		return FortuneDropHelper::grass($item);
 	}
 
 	public function getFlameEncouragement() : int{

src/block/Wheat.php

@@ -23,9 +23,9 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\FortuneDropHelper;
 use pocketmine\item\Item;
 use pocketmine\item\VanillaItems;
-use function mt_rand;
 
 class Wheat extends Crops{
 
@@ -33,7 +33,7 @@ class Wheat extends Crops{
 		if($this->age >= self::MAX_AGE){
 			return [
 				VanillaItems::WHEAT(),
-				VanillaItems::WHEAT_SEEDS()->setCount(mt_rand(0, 3))
+				VanillaItems::WHEAT_SEEDS()->setCount(FortuneDropHelper::binomial($item, 0))
 			];
 		}else{
 			return [

src/block/utils/FortuneDropHelper.php

@@ -0,0 +1,150 @@
+<?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\block\utils;
+
+use pocketmine\item\enchantment\VanillaEnchantments;
+use pocketmine\item\Item;
+use pocketmine\item\VanillaItems;
+use function max;
+use function min;
+use function mt_getrandmax;
+use function mt_rand;
+
+final class FortuneDropHelper{
+	/**
+	 * If a random number between 0-1 is greater than 2/(level+2), this multiplies the max drop amount by level+1, and
+	 * picks a random amount between the minimum and multiplied maximum. Each level of fortune increases the chance of
+	 * fortune activation, and also increases the maximum drop limit when activated.
+	 *
+	 * Otherwise, returns a random amount of the item between the minimum and original maximum.
+	 *
+	 * @param Item $usedItem The item used to break the block
+	 * @param int  $min      Minimum amount
+	 * @param int  $maxBase  Maximum amount, as if fortune level was 0
+	 *
+	 * @return int the number of items to drop
+	 */
+	public static function weighted(Item $usedItem, int $min, int $maxBase) : int{
+		if($maxBase < $min){
+			throw new \InvalidArgumentException("Maximum drop amount must be greater than or equal to minimum drop amount");
+		}
+
+		$fortuneLevel = $usedItem->getEnchantmentLevel(VanillaEnchantments::FORTUNE());
+
+		return mt_rand($min,
+			$fortuneLevel > 0 && mt_rand() / mt_getrandmax() > 2 / ($fortuneLevel + 2) ?
+				$maxBase * ($fortuneLevel + 1) :
+				$maxBase
+		);
+	}
+
+	/**
+	 * Increases the drop amount according to a binomial distribution. The function will roll maxBase+level times, and add 1
+	 * if a random number between 0-1 is less than the given probability. Each level of fortune adds one extra roll.
+	 *
+	 * As many as maxBase+level items can be dropped. This applies even if the fortune level is 0.
+	 *
+	 * @param float $chance   The chance of adding 1 to the amount for each roll, must be in the range 0-1
+	 * @param int   $min      Minimum amount
+	 * @param int   $minRolls Number of rolls if fortune level is 0, added to fortune level to calculate total rolls
+	 *
+	 * @return int the number of items to drop
+	 */
+	public static function binomial(Item $usedItem, int $min, int $minRolls = 3, float $chance = 4 / 7) : int{
+		$fortuneLevel = $usedItem->getEnchantmentLevel(VanillaEnchantments::FORTUNE());
+
+		$count = $min;
+		$rolls = $minRolls + $fortuneLevel;
+		for($i = 0; $i < $rolls; ++$i){
+			if(mt_rand() / mt_getrandmax() < $chance){
+				++$count;
+			}
+		}
+
+		return $count;
+	}
+
+	/**
+	 * Grass have a fixed chance to drop wheat seed.
+	 * Fortune level increases the maximum number of seeds that can be dropped.
+	 * A discrete uniform distribution is used to determine the number of seeds dropped.
+	 *
+	 * TODO: I'm not sure this really belongs here, but it's preferable not to duplicate this code between grass and
+	 * tall grass.
+	 *
+	 * @return Item[]
+	 */
+	public static function grass(Item $usedItem) : array{
+		if(FortuneDropHelper::bonusChanceDivisor($usedItem, 8, 2)){
+			return [
+				VanillaItems::WHEAT_SEEDS()
+			];
+		}
+
+		return [];
+	}
+
+	/**
+	 * Adds the fortune level to the base max and picks a random number between the minimim and adjusted maximum.
+	 * Each amount in the range has an equal chance of being picked.
+	 *
+	 * @param int $maxBase Maximum base amount, as if the fortune level was 0
+	 *
+	 * @return int the number of items to drop
+	 */
+	public static function discrete(Item $usedItem, int $min, int $maxBase) : int{
+		if($maxBase < $min){
+			throw new \InvalidArgumentException("Minimum base drop amount must be less than or equal to maximum base drop amount");
+		}
+
+		$max = $maxBase + $usedItem->getEnchantmentLevel(VanillaEnchantments::FORTUNE());
+		return mt_rand($min, $max);
+	}
+
+	/**
+	 * Calculates a chance of getting an extra bonus drop by reducing the chance divisor by a given amount per fortune
+	 * level.
+	 *
+	 * @param int $divisorBase             The number to divide 1 by to get the chance, as if the fortune level was 0
+	 * @param int $divisorSubtractPerLevel The amount to subtract from the divisor for each level of fortune
+	 *
+	 * @return bool whether the bonus drop should be added
+	 */
+	public static function bonusChanceDivisor(Item $usedItem, int $divisorBase, int $divisorSubtractPerLevel) : bool{
+		$fortuneLevel = $usedItem->getEnchantmentLevel(VanillaEnchantments::FORTUNE());
+		return mt_rand(1, max(1, $divisorBase - ($fortuneLevel * $divisorSubtractPerLevel))) === 1;
+	}
+
+	/**
+	 * Calculates a chance of getting an extra bonus drop by increasing the chance by a fixed amount per fortune level.
+	 *
+	 * @param float $chanceBase          The base chance of getting a bonus drop, as if the fortune level was 0
+	 * @param float $addedChancePerLevel The amount to add to the chance for each level of fortune
+	 */
+	public static function bonusChanceFixed(Item $usedItem, float $chanceBase, float $addedChancePerLevel) : bool{
+		$fortuneLevel = $usedItem->getEnchantmentLevel(VanillaEnchantments::FORTUNE());
+		$chance = min(1, $chanceBase + ($fortuneLevel * $addedChancePerLevel));
+		return mt_rand() / mt_getrandmax() < $chance;
+	}
+}

src/data/bedrock/EnchantmentIdMap.php

@@ -62,6 +62,7 @@ final class EnchantmentIdMap{
 		$this->register(EnchantmentIds::FIRE_ASPECT, VanillaEnchantments::FIRE_ASPECT());
 
 		$this->register(EnchantmentIds::EFFICIENCY, VanillaEnchantments::EFFICIENCY());
+		$this->register(EnchantmentIds::FORTUNE, VanillaEnchantments::FORTUNE());
 		$this->register(EnchantmentIds::SILK_TOUCH, VanillaEnchantments::SILK_TOUCH());
 		$this->register(EnchantmentIds::UNBREAKING, VanillaEnchantments::UNBREAKING());
 

src/item/enchantment/StringToEnchantmentParser.php

@@ -43,6 +43,7 @@ final class StringToEnchantmentParser extends StringToTParser{
 		$result->register("fire_aspect", fn() => VanillaEnchantments::FIRE_ASPECT());
 		$result->register("fire_protection", fn() => VanillaEnchantments::FIRE_PROTECTION());
 		$result->register("flame", fn() => VanillaEnchantments::FLAME());
+		$result->register("fortune", fn() => VanillaEnchantments::FORTUNE());
 		$result->register("infinity", fn() => VanillaEnchantments::INFINITY());
 		$result->register("knockback", fn() => VanillaEnchantments::KNOCKBACK());
 		$result->register("mending", fn() => VanillaEnchantments::MENDING());

src/item/enchantment/VanillaEnchantments.php

@@ -39,6 +39,7 @@ use pocketmine\utils\RegistryTrait;
  * @method static FireAspectEnchantment FIRE_ASPECT()
  * @method static ProtectionEnchantment FIRE_PROTECTION()
  * @method static Enchantment FLAME()
+ * @method static Enchantment FORTUNE()
  * @method static Enchantment INFINITY()
  * @method static KnockbackEnchantment KNOCKBACK()
  * @method static Enchantment MENDING()
@@ -85,6 +86,7 @@ final class VanillaEnchantments{
 		self::register("FIRE_ASPECT", new FireAspectEnchantment(KnownTranslationFactory::enchantment_fire(), Rarity::RARE, ItemFlags::SWORD, ItemFlags::NONE, 2));
 
 		self::register("EFFICIENCY", new Enchantment(KnownTranslationFactory::enchantment_digging(), Rarity::COMMON, ItemFlags::DIG, ItemFlags::SHEARS, 5));
+		self::register("FORTUNE", new Enchantment(KnownTranslationFactory::enchantment_lootBonusDigger(), Rarity::RARE, ItemFlags::DIG, ItemFlags::NONE, 3));
 		self::register("SILK_TOUCH", new Enchantment(KnownTranslationFactory::enchantment_untouching(), Rarity::MYTHIC, ItemFlags::DIG, ItemFlags::SHEARS, 1));
 		self::register("UNBREAKING", new Enchantment(KnownTranslationFactory::enchantment_durability(), Rarity::UNCOMMON, ItemFlags::DIG | ItemFlags::ARMOR | ItemFlags::FISHING_ROD | ItemFlags::BOW, ItemFlags::TOOL | ItemFlags::CARROT_STICK | ItemFlags::ELYTRA, 3));