<?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\entity\effect;

use pocketmine\entity\Entity;
use pocketmine\entity\Living;
use pocketmine\event\entity\EntityDamageEvent;

class WitherEffect extends Effect{

	public function canTick(EffectInstance $instance) : bool{
		if(($interval = (40 >> $instance->getAmplifier())) > 0){
			return ($instance->getDuration() % $interval) === 0;
		}
		return true;
	}

	public function applyEffect(Living $entity, EffectInstance $instance, float $potency = 1.0, ?Entity $source = null) : void{
		$ev = new EntityDamageEvent($entity, EntityDamageEvent::CAUSE_MAGIC, 1);
		$entity->attack($ev);
	}
}