pocketmine\event\entity\EntityLaunchFishingRodEvent::setProjectile PHP Метод

    public function setProjectile(Entity $projectile)
    {
        if ($projectile !== $this->projectile) {
            if (count($this->projectile->getViewers()) === 0) {
                $this->projectile->kill();
                $this->projectile->close();
            }
            $this->projectile = $projectile;
        }
    }