ChiseledBookshelf.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\ChiseledBookshelf as TileChiseledBookshelf;
use pocketmine\block\utils\ChiseledBookshelfSlot;
use pocketmine\block\utils\FacesOppositePlacingPlayerTrait;
use pocketmine\block\utils\HorizontalFacing;
use pocketmine\block\utils\HorizontalFacingTrait;
use pocketmine\data\runtime\RuntimeDataDescriber;
use pocketmine\item\Book;
use pocketmine\item\EnchantedBook;
use pocketmine\item\Item;
use pocketmine\item\WritableBookBase;
use pocketmine\math\Axis;
use pocketmine\math\Facing;
use pocketmine\math\Vector3;
use pocketmine\player\Player;
use function spl_object_id;
 
class ChiseledBookshelf extends Opaque implements HorizontalFacing{
    use HorizontalFacingTrait;
    use FacesOppositePlacingPlayerTrait;
 
    private array $slots = [];
 
    private ?ChiseledBookshelfSlot $lastInteractedSlot = null;
 
    protected function describeBlockOnlyState(RuntimeDataDescriber $w) : void{
        $w->horizontalFacing($this->facing);
        $w->enumSet($this->slots, ChiseledBookshelfSlot::cases());
    }
 
    public function readStateFromWorld() : Block{
        $tile = $this->position->getWorld()->getTile($this->position);
        if($tile instanceof TileChiseledBookshelf){
            $this->lastInteractedSlot = $tile->getLastInteractedSlot();
        }else{
            $this->lastInteractedSlot = null;
        }
        return $this;
    }
 
    public function writeStateToWorld() : void{
        parent::writeStateToWorld();
 
        $tile = $this->position->getWorld()->getTile($this->position);
        if($tile instanceof TileChiseledBookshelf){
            $tile->setLastInteractedSlot($this->lastInteractedSlot);
        }
    }
 
    public function hasSlot(ChiseledBookshelfSlot $slot) : bool{
        return isset($this->slots[spl_object_id($slot)]);
    }
 
    public function setSlot(ChiseledBookshelfSlot $slot, bool $occupied) : self{
        if($occupied){
            $this->slots[spl_object_id($slot)] = $slot;
        }else{
            unset($this->slots[spl_object_id($slot)]);
        }
        return $this;
    }
 
    public function getSlots() : array{
        return $this->slots;
    }
 
    public function getLastInteractedSlot() : ?ChiseledBookshelfSlot{
        return $this->lastInteractedSlot;
    }
 
    public function setLastInteractedSlot(?ChiseledBookshelfSlot $lastInteractedSlot) : self{
        $this->lastInteractedSlot = $lastInteractedSlot;
        return $this;
    }
 
    public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
        if($face !== $this->facing){
            return false;
        }
 
        $x = Facing::axis($face) === Axis::X ? $clickVector->z : $clickVector->x;
        $slot = ChiseledBookshelfSlot::fromBlockFaceCoordinates(
            Facing::isPositive(Facing::rotateY($face, true)) ? 1 - $x : $x,
            $clickVector->y
        );
        $tile = $this->position->getWorld()->getTile($this->position);
        if(!$tile instanceof TileChiseledBookshelf){
            return false;
        }
 
        $inventory = $tile->getInventory();
        if(!$inventory->isSlotEmpty($slot->value)){
            $returnedItems[] = $inventory->getItem($slot->value);
            $inventory->clear($slot->value);
            $this->setSlot($slot, false);
            $this->lastInteractedSlot = $slot;
        }elseif($item instanceof WritableBookBase || $item instanceof Book || $item instanceof EnchantedBook){
            //TODO: type tags like blocks would be better for this
            $inventory->setItem($slot->value, $item->pop());
            $this->setSlot($slot, true);
            $this->lastInteractedSlot = $slot;
        }else{
            return true;
        }
 
        $this->position->getWorld()->setBlock($this->position, $this);
        return true;
    }
 
    public function getDropsForCompatibleTool(Item $item) : array{
        return [];
    }
 
    public function isAffectedBySilkTouch() : bool{
        return true;
    }
}