SweetBerryBush.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\BlockEventHelper;
use pocketmine\block\utils\FortuneDropHelper;
use pocketmine\block\utils\StaticSupportTrait;
use pocketmine\entity\Entity;
use pocketmine\entity\Living;
use pocketmine\event\entity\EntityDamageByBlockEvent;
use pocketmine\item\Fertilizer;
use pocketmine\item\Item;
use pocketmine\item\VanillaItems;
use pocketmine\math\Facing;
use pocketmine\math\Vector3;
use pocketmine\player\Player;
use pocketmine\world\sound\SweetBerriesPickSound;
use function mt_rand;
 
class SweetBerryBush extends Flowable{
    use AgeableTrait;
    use StaticSupportTrait;
 
    public const STAGE_SAPLING = 0;
    public const STAGE_BUSH_NO_BERRIES = 1;
    public const STAGE_BUSH_SOME_BERRIES = 2;
    public const STAGE_MATURE = 3;
    public const MAX_AGE = self::STAGE_MATURE;
 
    public function getBerryDropAmount() : int{
        if($this->age === self::STAGE_MATURE){
            return mt_rand(2, 3);
        }elseif($this->age >= self::STAGE_BUSH_SOME_BERRIES){
            return mt_rand(1, 2);
        }
        return 0;
    }
 
    protected function canBeSupportedBy(Block $block) : bool{
        return $block->getTypeId() !== BlockTypeIds::FARMLAND && //bedrock-specific thing (bug?)
            ($block->hasTypeTag(BlockTypeTags::DIRT) || $block->hasTypeTag(BlockTypeTags::MUD));
    }
 
    private function canBeSupportedAt(Block $block) : bool{
        $supportBlock = $block->getSide(Facing::DOWN);
        return $this->canBeSupportedBy($supportBlock);
    }
 
    public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
        $world = $this->position->getWorld();
        if($this->age < self::STAGE_MATURE && $item instanceof Fertilizer){
            $block = clone $this;
            $block->age++;
            if(BlockEventHelper::grow($this, $block, $player)){
                $item->pop();
            }
        }elseif(($dropAmount = $this->getBerryDropAmount()) > 0){
            $world->setBlock($this->position, $this->setAge(self::STAGE_BUSH_NO_BERRIES));
            $world->dropItem($this->position, $this->asItem()->setCount($dropAmount));
            $world->addSound($this->position, new SweetBerriesPickSound());
        }
 
        return true;
    }
 
    public function asItem() : Item{
        return VanillaItems::SWEET_BERRIES();
    }
 
    public function getDropsForCompatibleTool(Item $item) : array{
        $count = match($this->age){
            self::STAGE_MATURE => FortuneDropHelper::discrete($item, 2, 3),
            self::STAGE_BUSH_SOME_BERRIES => FortuneDropHelper::discrete($item, 1, 2),
            default => 0
        };
        return [
            $this->asItem()->setCount($count)
        ];
    }
 
    public function ticksRandomly() : bool{
        return $this->age < self::STAGE_MATURE;
    }
 
    public function onRandomTick() : void{
        if($this->age < self::STAGE_MATURE && mt_rand(0, 2) === 1){
            $block = clone $this;
            ++$block->age;
            BlockEventHelper::grow($this, $block, null);
        }
    }
 
    public function hasEntityCollision() : bool{
        return true;
    }
 
    public function onEntityInside(Entity $entity) : bool{
        if($this->age >= self::STAGE_BUSH_NO_BERRIES && $entity instanceof Living){
            $entity->resetFallDistance();
 
            //TODO: in MCPE, this only triggers if moving while inside the bush block - we don't have the system to deal
            //with that reliably right now
            $entity->attack(new EntityDamageByBlockEvent($this, $entity, EntityDamageByBlockEvent::CAUSE_CONTACT, 1));
        }
        return true;
    }
}