tile/Furnace.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\tile;
 
use pocketmine\block\Furnace as BlockFurnace;
use pocketmine\block\inventory\FurnaceInventory;
use pocketmine\crafting\FurnaceRecipe;
use pocketmine\crafting\FurnaceType;
use pocketmine\event\inventory\FurnaceBurnEvent;
use pocketmine\event\inventory\FurnaceSmeltEvent;
use pocketmine\inventory\CallbackInventoryListener;
use pocketmine\inventory\Inventory;
use pocketmine\item\Item;
use pocketmine\math\Vector3;
use pocketmine\nbt\tag\CompoundTag;
use pocketmine\network\mcpe\protocol\ContainerSetDataPacket;
use pocketmine\player\Player;
use pocketmine\world\World;
use function array_map;
use function max;
 
abstract class Furnace extends Spawnable implements Container, Nameable{
    use NameableTrait;
    use ContainerTrait;
 
    public const TAG_BURN_TIME = "BurnTime";
    public const TAG_COOK_TIME = "CookTime";
    public const TAG_MAX_TIME = "MaxTime";
 
    protected FurnaceInventory $inventory;
    private int $remainingFuelTime = 0;
    private int $cookTime = 0;
    private int $maxFuelTime = 0;
 
    public function __construct(World $world, Vector3 $pos){
        parent::__construct($world, $pos);
        $this->inventory = new FurnaceInventory($this->position, $this->getFurnaceType());
        $this->inventory->getListeners()->add(CallbackInventoryListener::onAnyChange(
            static function(Inventory $unused) use ($world, $pos) : void{
                $world->scheduleDelayedBlockUpdate($pos, 1);
            })
        );
    }
 
    public function readSaveData(CompoundTag $nbt) : void{
        $this->remainingFuelTime = max(0, $nbt->getShort(self::TAG_BURN_TIME, $this->remainingFuelTime));
 
        $this->cookTime = $nbt->getShort(self::TAG_COOK_TIME, $this->cookTime);
        if($this->remainingFuelTime === 0){
            $this->cookTime = 0;
        }
 
        $this->maxFuelTime = $nbt->getShort(self::TAG_MAX_TIME, $this->maxFuelTime);
        if($this->maxFuelTime === 0){
            $this->maxFuelTime = $this->remainingFuelTime;
        }
 
        $this->loadName($nbt);
        $this->loadItems($nbt);
 
        if($this->remainingFuelTime > 0){
            $this->position->getWorld()->scheduleDelayedBlockUpdate($this->position, 1);
        }
    }
 
    protected function writeSaveData(CompoundTag $nbt) : void{
        $nbt->setShort(self::TAG_BURN_TIME, $this->remainingFuelTime);
        $nbt->setShort(self::TAG_COOK_TIME, $this->cookTime);
        $nbt->setShort(self::TAG_MAX_TIME, $this->maxFuelTime);
        $this->saveName($nbt);
        $this->saveItems($nbt);
    }
 
    public function getDefaultName() : string{
        return "Furnace";
    }
 
    public function close() : void{
        if(!$this->closed){
            $this->inventory->removeAllViewers();
 
            parent::close();
        }
    }
 
    public function getInventory() : FurnaceInventory{
        return $this->inventory;
    }
 
    public function getRealInventory() : FurnaceInventory{
        return $this->getInventory();
    }
 
    protected function checkFuel(Item $fuel) : void{
        $ev = new FurnaceBurnEvent($this, $fuel, $fuel->getFuelTime());
        $ev->call();
        if($ev->isCancelled()){
            return;
        }
 
        $this->maxFuelTime = $this->remainingFuelTime = $ev->getBurnTime();
        $this->onStartSmelting();
 
        if($this->remainingFuelTime > 0 && $ev->isBurning()){
            $this->inventory->setFuel($fuel->getFuelResidue());
        }
    }
 
    protected function onStartSmelting() : void{
        $block = $this->getBlock();
        if($block instanceof BlockFurnace && !$block->isLit()){
            $block->setLit(true);
            $this->position->getWorld()->setBlock($block->getPosition(), $block);
        }
    }
 
    protected function onStopSmelting() : void{
        $block = $this->getBlock();
        if($block instanceof BlockFurnace && $block->isLit()){
            $block->setLit(false);
            $this->position->getWorld()->setBlock($block->getPosition(), $block);
        }
    }
 
    abstract public function getFurnaceType() : FurnaceType;
 
    public function onUpdate() : bool{
        //TODO: move this to Block
        if($this->closed){
            return false;
        }
 
        $this->timings->startTiming();
 
        $prevCookTime = $this->cookTime;
        $prevRemainingFuelTime = $this->remainingFuelTime;
        $prevMaxFuelTime = $this->maxFuelTime;
 
        $ret = false;
 
        $fuel = $this->inventory->getFuel();
        $raw = $this->inventory->getSmelting();
        $product = $this->inventory->getResult();
 
        $furnaceType = $this->getFurnaceType();
        $smelt = $this->position->getWorld()->getServer()->getCraftingManager()->getFurnaceRecipeManager($furnaceType)->match($raw);
        $canSmelt = ($smelt instanceof FurnaceRecipe && $raw->getCount() > 0 && (($smelt->getResult()->canStackWith($product) && $product->getCount() < $product->getMaxStackSize()) || $product->isNull()));
 
        if($this->remainingFuelTime <= 0 && $canSmelt && $fuel->getFuelTime() > 0 && $fuel->getCount() > 0){
            $this->checkFuel($fuel);
        }
 
        if($this->remainingFuelTime > 0){
            --$this->remainingFuelTime;
 
            if($smelt instanceof FurnaceRecipe && $canSmelt){
                ++$this->cookTime;
 
                if($this->cookTime >= $furnaceType->getCookDurationTicks()){
                    $product = $smelt->getResult()->setCount($product->getCount() + 1);
 
                    $ev = new FurnaceSmeltEvent($this, $raw, $product);
                    $ev->call();
 
                    if(!$ev->isCancelled()){
                        $this->inventory->setResult($ev->getResult());
                        $raw->pop();
                        $this->inventory->setSmelting($raw);
                    }
 
                    $this->cookTime -= $furnaceType->getCookDurationTicks();
                }
            }elseif($this->remainingFuelTime <= 0){
                $this->remainingFuelTime = $this->cookTime = $this->maxFuelTime = 0;
            }else{
                $this->cookTime = 0;
            }
            $ret = true;
        }else{
            $this->onStopSmelting();
            $this->remainingFuelTime = $this->cookTime = $this->maxFuelTime = 0;
        }
 
        $viewers = array_map(fn(Player $p) => $p->getNetworkSession()->getInvManager(), $this->inventory->getViewers());
        foreach($viewers as $v){
            if($v === null){
                continue;
            }
            if($prevCookTime !== $this->cookTime){
                $v->syncData($this->inventory, ContainerSetDataPacket::PROPERTY_FURNACE_SMELT_PROGRESS, $this->cookTime);
            }
            if($prevRemainingFuelTime !== $this->remainingFuelTime){
                $v->syncData($this->inventory, ContainerSetDataPacket::PROPERTY_FURNACE_REMAINING_FUEL_TIME, $this->remainingFuelTime);
            }
            if($prevMaxFuelTime !== $this->maxFuelTime){
                $v->syncData($this->inventory, ContainerSetDataPacket::PROPERTY_FURNACE_MAX_FUEL_TIME, $this->maxFuelTime);
            }
        }
 
        $this->timings->stopTiming();
 
        return $ret;
    }
}