AvailableEnchantmentRegistry.php

<?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\enchantment;
 
use pocketmine\item\enchantment\ItemEnchantmentTagRegistry as TagRegistry;
use pocketmine\item\enchantment\ItemEnchantmentTags as Tags;
use pocketmine\item\enchantment\VanillaEnchantments as Enchantments;
use pocketmine\item\Item;
use pocketmine\utils\SingletonTrait;
use function array_filter;
use function array_values;
use function count;
use function spl_object_id;
 
final class AvailableEnchantmentRegistry{
    use SingletonTrait;
 
    private array $enchantments = [];
 
    private array $primaryItemTags = [];
 
    private array $secondaryItemTags = [];
 
    private function __construct(){
        $this->register(Enchantments::PROTECTION(), [Tags::ARMOR], []);
        $this->register(Enchantments::FIRE_PROTECTION(), [Tags::ARMOR], []);
        $this->register(Enchantments::FEATHER_FALLING(), [Tags::BOOTS], []);
        $this->register(Enchantments::BLAST_PROTECTION(), [Tags::ARMOR], []);
        $this->register(Enchantments::PROJECTILE_PROTECTION(), [Tags::ARMOR], []);
        $this->register(Enchantments::THORNS(), [Tags::CHESTPLATE], [Tags::HELMET, Tags::LEGGINGS, Tags::BOOTS]);
        $this->register(Enchantments::RESPIRATION(), [Tags::HELMET], []);
        $this->register(Enchantments::AQUA_AFFINITY(), [Tags::HELMET], []);
        $this->register(Enchantments::FROST_WALKER(), [/* no primary items */], [Tags::BOOTS]);
        $this->register(Enchantments::SHARPNESS(), [Tags::SWORD, Tags::AXE], []);
        $this->register(Enchantments::KNOCKBACK(), [Tags::SWORD], []);
        $this->register(Enchantments::FIRE_ASPECT(), [Tags::SWORD], []);
        $this->register(Enchantments::EFFICIENCY(), [Tags::BLOCK_TOOLS], [Tags::SHEARS]);
        $this->register(Enchantments::FORTUNE(), [Tags::BLOCK_TOOLS], []);
        $this->register(Enchantments::SILK_TOUCH(), [Tags::BLOCK_TOOLS], [Tags::SHEARS]);
        $this->register(
            Enchantments::UNBREAKING(),
            [Tags::ARMOR, Tags::WEAPONS, Tags::FISHING_ROD],
            [Tags::SHEARS, Tags::FLINT_AND_STEEL, Tags::SHIELD, Tags::CARROT_ON_STICK, Tags::ELYTRA, Tags::BRUSH]
        );
        $this->register(Enchantments::POWER(), [Tags::BOW], []);
        $this->register(Enchantments::PUNCH(), [Tags::BOW], []);
        $this->register(Enchantments::FLAME(), [Tags::BOW], []);
        $this->register(Enchantments::INFINITY(), [Tags::BOW], []);
        $this->register(
            Enchantments::MENDING(),
            [],
            [Tags::ARMOR, Tags::WEAPONS, Tags::FISHING_ROD,
                Tags::SHEARS, Tags::FLINT_AND_STEEL, Tags::SHIELD, Tags::CARROT_ON_STICK, Tags::ELYTRA, Tags::BRUSH]
        );
        $this->register(Enchantments::VANISHING(), [], [Tags::ALL]);
        $this->register(Enchantments::SWIFT_SNEAK(), [], [Tags::LEGGINGS]);
    }
 
    public function register(Enchantment $enchantment, array $primaryItemTags, array $secondaryItemTags) : void{
        $this->enchantments[spl_object_id($enchantment)] = $enchantment;
        $this->setPrimaryItemTags($enchantment, $primaryItemTags);
        $this->setSecondaryItemTags($enchantment, $secondaryItemTags);
    }
 
    public function unregister(Enchantment $enchantment) : void{
        unset($this->enchantments[spl_object_id($enchantment)]);
        unset($this->primaryItemTags[spl_object_id($enchantment)]);
        unset($this->secondaryItemTags[spl_object_id($enchantment)]);
    }
 
    public function unregisterAll() : void{
        $this->enchantments = [];
        $this->primaryItemTags = [];
        $this->secondaryItemTags = [];
    }
 
    public function isRegistered(Enchantment $enchantment) : bool{
        return isset($this->enchantments[spl_object_id($enchantment)]);
    }
 
    public function getPrimaryItemTags(Enchantment $enchantment) : array{
        return $this->primaryItemTags[spl_object_id($enchantment)] ?? [];
    }
 
    public function setPrimaryItemTags(Enchantment $enchantment, array $tags) : void{
        if(!$this->isRegistered($enchantment)){
            throw new \LogicException("Cannot set primary item tags for non-registered enchantment");
        }
        $this->primaryItemTags[spl_object_id($enchantment)] = array_values($tags);
    }
 
    public function getSecondaryItemTags(Enchantment $enchantment) : array{
        return $this->secondaryItemTags[spl_object_id($enchantment)] ?? [];
    }
 
    public function setSecondaryItemTags(Enchantment $enchantment, array $tags) : void{
        if(!$this->isRegistered($enchantment)){
            throw new \LogicException("Cannot set secondary item tags for non-registered enchantment");
        }
        $this->secondaryItemTags[spl_object_id($enchantment)] = array_values($tags);
    }
 
    public function getPrimaryEnchantmentsForItem(Item $item) : array{
        $itemTags = $item->getEnchantmentTags();
        if(count($itemTags) === 0 || $item->hasEnchantments()){
            return [];
        }
 
        return array_filter(
            $this->enchantments,
            fn(Enchantment $e) => TagRegistry::getInstance()->isTagArrayIntersection($this->getPrimaryItemTags($e), $itemTags)
        );
    }
 
    public function getAllEnchantmentsForItem(Item $item) : array{
        if(count($item->getEnchantmentTags()) === 0){
            return [];
        }
 
        return array_filter(
            $this->enchantments,
            fn(Enchantment $enchantment) => $this->isAvailableForItem($enchantment, $item)
        );
    }
 
    public function isAvailableForItem(Enchantment $enchantment, Item $item) : bool{
        $itemTags = $item->getEnchantmentTags();
        $tagRegistry = TagRegistry::getInstance();
 
        return $tagRegistry->isTagArrayIntersection($this->getPrimaryItemTags($enchantment), $itemTags) ||
            $tagRegistry->isTagArrayIntersection($this->getSecondaryItemTags($enchantment), $itemTags);
    }
 
    public function getAll() : array{
        return $this->enchantments;
    }
}