NetherVines.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\AgeableTrait;
use pocketmine\block\utils\FortuneDropHelper;
use pocketmine\block\utils\StaticSupportTrait;
use pocketmine\block\utils\SupportType;
use pocketmine\entity\Entity;
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 function min;
use function mt_rand;
 
class NetherVines extends Flowable{
    use AgeableTrait;
    use StaticSupportTrait;
 
    public const MAX_AGE = 25;
 
    private int $growthFace;
 
    public function __construct(BlockIdentifier $idInfo, string $name, BlockTypeInfo $typeInfo, int $growthFace){
        $this->growthFace = $growthFace;
        parent::__construct($idInfo, $name, $typeInfo);
    }
 
    public function isAffectedBySilkTouch() : bool{
        return true;
    }
 
    public function canClimb() : bool{
        return true;
    }
 
    private function canBeSupportedAt(Block $block) : bool{
        $supportBlock = $block->getSide(Facing::opposite($this->growthFace));
        return $supportBlock->getSupportType($this->growthFace)->hasCenterSupport() || $supportBlock->hasSameTypeId($this);
    }
 
    private function seekToTip() : NetherVines{
        $top = $this;
        while(($next = $top->getSide($this->growthFace)) instanceof NetherVines && $next->hasSameTypeId($this)){
            $top = $next;
        }
        return $top;
    }
 
    public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
        $this->age = mt_rand(0, self::MAX_AGE - 1);
        return parent::place($tx, $item, $blockReplace, $blockClicked, $face, $clickVector, $player);
    }
 
    public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
        if($item instanceof Fertilizer){
            if($this->grow($player, mt_rand(1, 5))){
                $item->pop();
            }
            return true;
        }
        return false;
    }
 
    public function ticksRandomly() : bool{
        return $this->age < self::MAX_AGE;
    }
 
    public function onRandomTick() : void{
        if($this->age < self::MAX_AGE && mt_rand(1, 10) === 1){
            if($this->getSide($this->growthFace)->canBeReplaced()){
                $this->grow(null);
            }
        }
    }
 
    private function grow(?Player $player, int $growthAmount = 1) : bool{
        $top = $this->seekToTip();
        $age = $top->age;
        $pos = $top->position;
        $world = $pos->getWorld();
        $changedBlocks = 0;
 
        $tx = new BlockTransaction($world);
 
        for($i = 1; $i <= $growthAmount; $i++){
            $growthPos = $pos->getSide($this->growthFace, $i);
            if(!$world->isInWorld($growthPos->getFloorX(), $growthPos->getFloorY(), $growthPos->getFloorZ()) || !$world->getBlock($growthPos)->canBeReplaced()){
                break;
            }
            $tx->addBlock($growthPos, (clone $top)->setAge(min(++$age, self::MAX_AGE)));
            $changedBlocks++;
        }
 
        if($changedBlocks > 0){
            $ev = new StructureGrowEvent($top, $tx, $player);
            $ev->call();
 
            if($ev->isCancelled()){
                return false;
            }
 
            return $tx->apply();
        }
 
        return false;
    }
 
    public function hasEntityCollision() : bool{
        return true;
    }
 
    public function onEntityInside(Entity $entity) : bool{
        $entity->resetFallDistance();
        return false;
    }
 
    protected function recalculateCollisionBoxes() : array{
        return [];
    }
 
    public function getDropsForCompatibleTool(Item $item) : array{
        if(($item->getBlockToolType() & BlockToolType::SHEARS) !== 0 || FortuneDropHelper::bonusChanceFixed($item, 1 / 3, 2 / 9)){
            return [$this->asItem()];
        }
        return [];
    }
 
    public function getSupportType(int $facing) : SupportType{
        return SupportType::NONE;
    }
}