Reduce a the player's attack damage according to a clicks limit / Reduce el daño de ataque de un jugador de acuerto a un límite de clics.

Clicks.php

<?php

declare(strict_types = 1);

 /**
  * @name Clicks
  * @author BEcraft
  * @main BEcraft\Clicks\Loader
  * @api 3.0.0
  * @version 1.0.0
  */

namespace BEcraft\Clicks;

use pocketmine\Player;
use pocketmine\plugin\PluginBase;
use pocketmine\event\Listener;
use pocketmine\event\player\PlayerQuitEvent;
use pocketmine\event\player\PlayerJoinEvent;
use pocketmine\event\entity\EntityDamageEvent;
use pocketmine\event\server\DataPacketReceiveEvent;
use pocketmine\network\mcpe\protocol\InventoryTransactionPacket;

class Loader extends PluginBase implements Listener {

    /**
     * Almacenamiento para las secciones.
     * @var array
     */
    public static $SESSION = array();

    /**
     * Cantidad máxima de clics.
     * @var int
     */
    public static $ALLOWED = 10;

    /**
     * Porcentaje que hará falta para comenzar a hacer efecto.
     * @var int
     */
    public static $PERCENT = 50;

    public function onEnable(): void {
	  $this->getServer()->getPluginManager()->registerEvents($this, $this);
    }

    /**
     * Iniciar la sección.
     */
    public function joinToGame(PlayerJoinEvent $event): void {
	  self::$SESSION[($player = $event->getPlayer())->getName()] = new ClicksHandler($player);
    }

    /**
     * Remover la sección creada.
     */
    public function leaveFromGame(PlayerQuitEvent $event): void {
	  unset(self::$SESSION[$event->getPlayer()->getName()]);
    }

    /**
     * Aumenta los clics del usuario.
     */
    public function handleClicks(DataPacketReceiveEvent $event): void {
	  if (!(($packet = $event->getPacket()) instanceof InventoryTransactionPacket) or ($packet->transactionType !== $packet::TYPE_USE_ITEM_ON_ENTITY and $packet->transactionType !== $packet::TYPE_USE_ITEM)) { //No solo en acción.
		return;
	  }
	  self::$SESSION[$event->getPlayer()->getName()]->handleClick(1);
    }

    /**
     * @priority HIGHEST
     * @ignoreCancelled false
     */
    public function handleDamage(EntityDamageEvent $event): void {
	  if (($attacker = ($event->getDamager() ?? null)) instanceof Player) {
		if ($event->getFinalDamage() === 0) {
		    return;
		}
		$clicks = self::$SESSION[$attacker->getName()]->handleClick();
		if ($clicks > self::$ALLOWED) {
		    $clicks = self::$ALLOWED;
		}
		$percentage = ($clicks / self::$ALLOWED) * 100;
		if ($percentage < self::$PERCENT) {
		    return; //Aún no es suficiente.
		}
		$event->setBaseDamage($event->getBaseDamage() - ($event->getBaseDamage() * $percentage / 100));
		$attacker->sendTip("Tu nivel de daño se ha reducido un {$percentage} porciento, {$clicks}C/s.");
	  }
    }

}

class ClicksHandler {

    /** @var Player */
    private $player;

    /** @var int */
    private $clicksCount = 0;

    /** @var int */
    private $currentTime = 0;

    public function __construct(Player $player) {
	  $this->player = $player;
    }

    public function handleClick(int $clicks = 0): int {
	  $this->clicksCount += $clicks;
	  if (($time = time()) !== $this->currentTime) {
		$current = $this->clicksCount;
		if (($time - $this->currentTime) >= 2) {
		    $current = 0;
		}
		$this->clicksCount = 0;
		$this->currentTime = time();
	  }
	  return ($current ?? $this->clicksCount);
    }


}