SmallDripleaf.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\HorizontalFacingTrait;
use pocketmine\block\utils\SupportType;
use pocketmine\data\runtime\RuntimeDataDescriber;
use pocketmine\event\block\StructureGrowEvent;
use pocketmine\item\Fertilizer;
use pocketmine\item\Item;
use pocketmine\math\Facing;
use pocketmine\math\Vector3;
use pocketmine\player\Player;
use pocketmine\world\BlockTransaction;
use pocketmine\world\Position;
use function mt_rand;
 
class SmallDripleaf extends Transparent{
    use HorizontalFacingTrait;
 
    protected bool $top = false;
 
    public function describeBlockOnlyState(RuntimeDataDescriber $w) : void{
        $w->horizontalFacing($this->facing);
        $w->bool($this->top);
    }
 
    public function isTop() : bool{
        return $this->top;
    }
 
    public function setTop(bool $top) : self{
        $this->top = $top;
        return $this;
    }
 
    private function canBeSupportedBy(Block $block) : bool{
        //TODO: Moss
        //TODO: Small Dripleaf also can be placed on dirt, coarse dirt, farmland, grass blocks,
        // podzol, rooted dirt, mycelium, and mud if these blocks are underwater (needs waterlogging)
        return $block->getTypeId() === BlockTypeIds::CLAY;
    }
 
    public function onNearbyBlockChange() : void{
        if(!$this->top && !$this->canBeSupportedBy($this->getSide(Facing::DOWN))){
            $this->position->getWorld()->useBreakOn($this->position);
            return;
        }
        $face = $this->top ? Facing::DOWN : Facing::UP;
        if(!$this->getSide($face)->hasSameTypeId($this)){
            $this->position->getWorld()->useBreakOn($this->position);
        }
    }
 
    public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
        $block = $blockReplace->getSide(Facing::UP);
        if($block->getTypeId() !== BlockTypeIds::AIR || !$this->canBeSupportedBy($blockReplace->getSide(Facing::DOWN))){
            return false;
        }
        if($player !== null){
            $this->facing = Facing::opposite($player->getHorizontalFacing());
        }
 
        $tx->addBlock($block->position, VanillaBlocks::SMALL_DRIPLEAF()
            ->setFacing($this->facing)
            ->setTop(true)
        );
        return parent::place($tx, $item, $blockReplace, $blockClicked, $face, $clickVector, $player);
    }
 
    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;
    }
 
    private function canGrowTo(Position $pos) : bool{
        $world = $pos->getWorld();
        if(!$world->isInWorld($pos->getFloorX(), $pos->getFloorY(), $pos->getFloorZ())){
            return false;
        }
        $block = $world->getBlock($pos);
        return $block->hasSameTypeId($this) || $block->getTypeId() === BlockTypeIds::AIR;
    }
 
    private function grow(?Player $player) : bool{
        $bottomBlock = $this->top ? $this->getSide(Facing::DOWN) : $this;
        if(!$this->hasSameTypeId($bottomBlock)){
            return false;
        }
        $world = $this->position->getWorld();
        $tx = new BlockTransaction($world);
        $height = mt_rand(2, 5);
        $grown = 0;
        for($i = 0; $i < $height; $i++){
            $pos = $bottomBlock->getSide(Facing::UP, $i)->position;
            if(!$this->canGrowTo($pos)){
                break;
            }
            $block = ++$grown < $height && $this->canGrowTo($pos->getSide(Facing::UP)) ?
                VanillaBlocks::BIG_DRIPLEAF_STEM() :
                VanillaBlocks::BIG_DRIPLEAF_HEAD();
            $tx->addBlock($pos, $block->setFacing($this->facing));
        }
        if($grown > 1){
            $ev = new StructureGrowEvent($bottomBlock, $tx, $player);
            $ev->call();
            if(!$ev->isCancelled()){
                return $tx->apply();
            }
        }
 
        return false;
    }
 
    public function getAffectedBlocks() : array{
        $other = $this->getSide($this->top ? Facing::DOWN : Facing::UP);
        if($other->hasSameTypeId($this)){
            return [$this, $other];
        }
        return parent::getAffectedBlocks();
    }
 
    public function getDropsForCompatibleTool(Item $item) : array{
        if(!$this->top){
            return [$this->asItem()];
        }
        return [];
    }
 
    public function getFlameEncouragement() : int{
        return 15;
    }
 
    public function getFlammability() : int{
        return 100;
    }
 
    public function getSupportType(int $facing) : SupportType{
        return SupportType::NONE;
    }
 
    protected function recalculateCollisionBoxes() : array{
        return [];
    }
}