Hopper.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\inventory\window\HopperInventoryWindow;
use pocketmine\block\utils\Container;
use pocketmine\block\utils\ContainerTrait;
use pocketmine\block\utils\PoweredByRedstone;
use pocketmine\block\utils\PoweredByRedstoneTrait;
use pocketmine\block\utils\SupportType;
use pocketmine\data\runtime\RuntimeDataDescriber;
use pocketmine\inventory\Inventory;
use pocketmine\item\Item;
use pocketmine\math\AxisAlignedBB;
use pocketmine\math\Facing;
use pocketmine\math\Vector3;
use pocketmine\player\InventoryWindow;
use pocketmine\player\Player;
use pocketmine\world\BlockTransaction;
use pocketmine\world\Position;
 
class Hopper extends Transparent implements Container, PoweredByRedstone{
    use ContainerTrait;
    use PoweredByRedstoneTrait;
 
    private Facing $facing = Facing::DOWN;
 
    protected function describeBlockOnlyState(RuntimeDataDescriber $w) : void{
        $w->facingExcept($this->facing, Facing::UP);
        $w->bool($this->powered);
    }
 
    public function getFacing() : Facing{ return $this->facing; }
 
    public function setFacing(Facing $facing) : self{
        if($facing === Facing::UP){
            throw new \InvalidArgumentException("Hopper may not face upward");
        }
        $this->facing = $facing;
        return $this;
    }
 
    protected function recalculateCollisionBoxes() : array{
        $result = [
            AxisAlignedBB::one()->trimmedCopy(Facing::UP, 6 / 16) //the empty area around the bottom is currently considered solid
        ];
 
        foreach(Facing::HORIZONTAL as $f){ //add the frame parts around the bowl
            $result[] = AxisAlignedBB::one()->trimmedCopy($f, 14 / 16);
        }
        return $result;
    }
 
    public function getSupportType(Facing $facing) : SupportType{
        return match($facing){
            Facing::UP => SupportType::FULL,
            Facing::DOWN => $this->facing === Facing::DOWN ? SupportType::CENTER : SupportType::NONE,
            default => SupportType::NONE
        };
    }
 
    public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, Facing $face, Vector3 $clickVector, ?Player $player = null) : bool{
        $this->facing = $face === Facing::DOWN ? Facing::DOWN : Facing::opposite($face);
 
        return parent::place($tx, $item, $blockReplace, $blockClicked, $face, $clickVector, $player);
    }
 
    protected function newMenu(Player $player, Inventory $inventory, Position $position) : InventoryWindow{
        return new HopperInventoryWindow($player, $inventory, $position);
    }
 
    public function onScheduledUpdate() : void{
        //TODO
    }
 
    //TODO: redstone logic, sucking logic
}