pocketmine\scheduler\ServerScheduler::addTask PHP Метод

    private function addTask(Task $task, $delay, $period)
    {
        if ($task instanceof PluginTask) {
            if (!$task->getOwner() instanceof Plugin) {
                throw new PluginException("Invalid owner of PluginTask " . get_class($task));
            } elseif (!$task->getOwner()->isEnabled()) {
                throw new PluginException("Plugin '" . $task->getOwner()->getName() . "' attempted to register a task while disabled");
            }
        } elseif ($task instanceof CallbackTask and Server::getInstance()->getProperty("settings.deprecated-verbose", true)) {
            $callable = $task->getCallable();
            if (is_array($callable)) {
                if (is_object($callable[0])) {
                    $taskName = "Callback#" . get_class($callable[0]) . "::" . $callable[1];
                } else {
                    $taskName = "Callback#" . $callable[0] . "::" . $callable[1];
                }
            } else {
                $taskName = "Callback#" . $callable;
            }
            //Server::getInstance()->getLogger()->warning("A plugin attempted to register a deprecated CallbackTask ($taskName)");
        }
        if ($delay <= 0) {
            $delay = -1;
        }
        if ($period <= -1) {
            $period = -1;
        } elseif ($period < 1) {
            $period = 1;
        }
        return $this->handle(new TaskHandler(get_class($task), $task, $this->nextId(), $delay, $period));
    }