ChorusPlant.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\StaticSupportTrait;
use pocketmine\item\Item;
use pocketmine\item\VanillaItems;
use pocketmine\math\Axis;
use pocketmine\math\AxisAlignedBB;
use pocketmine\math\Facing;
use function mt_rand;
 
final class ChorusPlant extends Flowable{
    use StaticSupportTrait;
 
    protected array $connections = [];
 
    protected function recalculateCollisionBoxes() : array{
        $bb = AxisAlignedBB::one();
        foreach(Facing::ALL as $facing){
            if(!isset($this->connections[$facing])){
                $bb->trim($facing, 2 / 16);
            }
        }
 
        return [$bb];
    }
 
    public function readStateFromWorld() : Block{
        parent::readStateFromWorld();
 
        $this->collisionBoxes = null;
 
        foreach(Facing::ALL as $facing){
            $block = $this->getSide($facing);
            if(match($block->getTypeId()){
                BlockTypeIds::END_STONE, BlockTypeIds::CHORUS_FLOWER, $this->getTypeId() => true,
                default => false
            }){
                $this->connections[$facing] = true;
            }else{
                unset($this->connections[$facing]);
            }
        }
 
        return $this;
    }
 
    private function canBeSupportedBy(Block $block) : bool{
        return $block->hasSameTypeId($this) || $block->getTypeId() === BlockTypeIds::END_STONE;
    }
 
    private function canBeSupportedAt(Block $block) : bool{
        $position = $block->position;
        $world = $position->getWorld();
 
        $down = $world->getBlock($position->down());
        $verticalAir = $down->getTypeId() === BlockTypeIds::AIR || $world->getBlock($position->up())->getTypeId() === BlockTypeIds::AIR;
 
        foreach($position->sidesAroundAxis(Axis::Y) as $sidePosition){
            $block = $world->getBlock($sidePosition);
 
            if($block->getTypeId() === BlockTypeIds::CHORUS_PLANT){
                if(!$verticalAir){
                    return false;
                }
 
                if($this->canBeSupportedBy($block->getSide(Facing::DOWN))){
                    return true;
                }
            }
        }
 
        return $this->canBeSupportedBy($down);
    }
 
    public function getDropsForCompatibleTool(Item $item) : array{
        if(mt_rand(0, 1) === 1){
            return [VanillaItems::CHORUS_FRUIT()];
        }
 
        return [];
    }
}