DragonEgg.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\Fallable;
use pocketmine\block\utils\FallableTrait;
use pocketmine\block\utils\SupportType;
use pocketmine\event\block\BlockTeleportEvent;
use pocketmine\item\Item;
use pocketmine\math\Vector3;
use pocketmine\player\GameMode;
use pocketmine\player\Player;
use pocketmine\world\particle\DragonEggTeleportParticle;
use pocketmine\world\World;
use function max;
use function min;
use function mt_rand;
 
class DragonEgg extends Transparent implements Fallable{
    use FallableTrait;
 
    public function getLightLevel() : int{
        return 1;
    }
 
    public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
        $this->teleport();
        return true;
    }
 
    public function onAttack(Item $item, int $face, ?Player $player = null) : bool{
        if($player !== null && $player->getGamemode() !== GameMode::CREATIVE){
            $this->teleport();
            return true;
        }
        return false;
    }
 
    public function teleport() : void{
        $world = $this->position->getWorld();
        for($tries = 0; $tries < 16; ++$tries){
            $block = $world->getBlockAt(
                $this->position->x + mt_rand(-16, 16),
                max(World::Y_MIN, min(World::Y_MAX - 1, $this->position->y + mt_rand(-8, 8))),
                $this->position->z + mt_rand(-16, 16)
            );
            if($block instanceof Air){
                $ev = new BlockTeleportEvent($this, $block->position);
                $ev->call();
                if($ev->isCancelled()){
                    break;
                }
 
                $blockPos = $ev->getTo();
                $world->addParticle($this->position, new DragonEggTeleportParticle($this->position->x - $blockPos->x, $this->position->y - $blockPos->y, $this->position->z - $blockPos->z));
                $world->setBlock($this->position, VanillaBlocks::AIR());
                $world->setBlock($blockPos, $this);
                break;
            }
        }
    }
 
    public function getSupportType(int $facing) : SupportType{
        return SupportType::NONE;
    }
}