PotionCauldron.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\block;
 
use pocketmine\block\tile\Cauldron as TileCauldron;
use pocketmine\item\Item;
use pocketmine\item\ItemTypeIds;
use pocketmine\item\VanillaItems;
use pocketmine\math\Facing;
use pocketmine\math\Vector3;
use pocketmine\player\Player;
use pocketmine\world\sound\CauldronEmptyPotionSound;
use pocketmine\world\sound\CauldronFillPotionSound;
use pocketmine\world\sound\Sound;
use function assert;
 
final class PotionCauldron extends FillableCauldron{
    public const POTION_FILL_AMOUNT = 2;
 
    private ?Item $potionItem = null;
 
    public function __construct(BlockIdentifier $idInfo, string $name, BlockTypeInfo $typeInfo){
        parent::__construct($idInfo, $name, $typeInfo);
    }
 
    public function readStateFromWorld() : Block{
        parent::readStateFromWorld();
        $tile = $this->position->getWorld()->getTile($this->position);
        $this->potionItem = $tile instanceof TileCauldron ? $tile->getPotionItem() : null;
 
        return $this;
    }
 
    public function writeStateToWorld() : void{
        parent::writeStateToWorld();
        $tile = $this->position->getWorld()->getTile($this->position);
        assert($tile instanceof TileCauldron);
        $tile->setCustomWaterColor(null);
        $tile->setPotionItem($this->potionItem);
    }
 
    public function getPotionItem() : ?Item{ return $this->potionItem === null ? null : clone $this->potionItem; }
 
    public function setPotionItem(?Item $potionItem) : self{
        if($potionItem !== null && !match($potionItem->getTypeId()){
            ItemTypeIds::POTION,
            ItemTypeIds::SPLASH_POTION,
            ItemTypeIds::LINGERING_POTION => true,
            default => false,
        }){
            throw new \InvalidArgumentException("Item must be a POTION, SPLASH_POTION or LINGERING_POTION");
        }
        $this->potionItem = $potionItem !== null ? (clone $potionItem)->setCount(1) : null;
        return $this;
    }
 
    public function getFillSound() : Sound{
        return new CauldronFillPotionSound();
    }
 
    public function getEmptySound() : Sound{
        return new CauldronEmptyPotionSound();
    }
 
    protected function addFillLevelsOrMix(int $amount, Item $usedItem, Item $returnedItem, array &$returnedItems) : void{
        if($this->potionItem !== null && !$usedItem->equals($this->potionItem, true, false)){
            $this->mix($usedItem, $returnedItem, $returnedItems);
        }else{
            $this->addFillLevels($amount, $usedItem, $returnedItem, $returnedItems);
        }
    }
 
    public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
        match($item->getTypeId()){
            ItemTypeIds::LINGERING_POTION, ItemTypeIds::POTION, ItemTypeIds::SPLASH_POTION => $this->addFillLevelsOrMix(self::POTION_FILL_AMOUNT, $item, VanillaItems::GLASS_BOTTLE(), $returnedItems),
            ItemTypeIds::GLASS_BOTTLE => $this->potionItem === null ? null : $this->removeFillLevels(self::POTION_FILL_AMOUNT, $item, clone $this->potionItem, $returnedItems),
            ItemTypeIds::LAVA_BUCKET, ItemTypeIds::POWDER_SNOW_BUCKET, ItemTypeIds::WATER_BUCKET => $this->mix($item, VanillaItems::BUCKET(), $returnedItems),
            //TODO: tipped arrows
            default => null
        };
        return true;
    }
 
    public function onNearbyBlockChange() : void{
        $world = $this->position->getWorld();
        if($world->getBlock($this->position->up())->getTypeId() === BlockTypeIds::WATER){
            $cauldron = VanillaBlocks::WATER_CAULDRON()->setFillLevel(FillableCauldron::MAX_FILL_LEVEL);
            $world->setBlock($this->position, $cauldron);
            $world->addSound($this->position->add(0.5, 0.5, 0.5), $cauldron->getFillSound());
        }
    }
}