DoublePitcherCrop.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\utils\Ageable;
use pocketmine\block\utils\AgeableTrait;
use pocketmine\block\utils\CropGrowthHelper;
use pocketmine\data\runtime\RuntimeDataDescriber;
use pocketmine\event\block\StructureGrowEvent;
use pocketmine\item\Fertilizer;
use pocketmine\item\Item;
use pocketmine\item\VanillaItems;
use pocketmine\math\Axis;
use pocketmine\math\AxisAlignedBB;
use pocketmine\math\Facing;
use pocketmine\math\Vector3;
use pocketmine\player\Player;
use pocketmine\world\BlockTransaction;
 
final class DoublePitcherCrop extends DoublePlant implements Ageable{
    use AgeableTrait {
        describeBlockOnlyState as describeAge;
    }
 
    public const MAX_AGE = 1;
 
    public function describeBlockOnlyState(RuntimeDataDescriber $w) : void{
        parent::describeBlockOnlyState($w);
        $this->describeAge($w);
    }
 
    protected function recalculateCollisionBoxes() : array{
        if($this->top){
            return [];
        }
 
        //the pod exists only in the bottom half of the plant
        return [
            AxisAlignedBB::one()
            ->trim(Facing::UP, 11 / 16)
            ->squash(Axis::X, 3 / 16)
            ->squash(Axis::Z, 3 / 16)
            ->extend(Facing::DOWN, 1 / 16) //presumably this is to correct for farmland being 15/16 of a block tall
        ];
    }
 
    private function grow(?Player $player) : bool{
        if($this->age >= self::MAX_AGE){
            return false;
        }
 
        $bottom = $this->top ? $this->getSide(Facing::DOWN) : $this;
        $top = $this->top ? $this : $this->getSide(Facing::UP);
        if($top->getTypeId() !== BlockTypeIds::AIR && !$top->hasSameTypeId($this)){
            return false;
        }
 
        $newState = (clone $this)->setAge($this->age + 1);
 
        $tx = new BlockTransaction($this->position->getWorld());
        $tx->addBlock($bottom->position, (clone $newState)->setTop(false));
        $tx->addBlock($top->position, (clone $newState)->setTop(true));
 
        $ev = new StructureGrowEvent($bottom, $tx, $player);
        $ev->call();
 
        return !$ev->isCancelled() && $tx->apply();
 
    }
 
    public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
        if($item instanceof Fertilizer && $this->grow($player)){
            $item->pop();
            return true;
        }
 
        return false;
    }
 
    public function ticksRandomly() : bool{
        return $this->age < self::MAX_AGE && !$this->top;
    }
 
    public function onRandomTick() : void{
        //only the bottom half of the plant can grow randomly
        if(CropGrowthHelper::canGrow($this) && !$this->top){
            $this->grow(null);
        }
    }
 
    public function getDropsForCompatibleTool(Item $item) : array{
        return [
            $this->age >= self::MAX_AGE ? VanillaBlocks::PITCHER_PLANT()->asItem() : VanillaItems::PITCHER_POD()
        ];
    }
 
    public function asItem() : Item{
        return VanillaItems::PITCHER_POD();
    }
}