Added API method Server->broadcastTitle() (#932)

src/pocketmine/Server.php

@@ -1716,6 +1716,36 @@ class Server{
 		return count($recipients);
 	}
 
+	/**
+	 * @param string $title
+	 * @param string $subtitle
+	 * @param int    $fadeIn Duration in ticks for fade-in. If -1 is given, client-sided defaults will be used.
+	 * @param int    $stay Duration in ticks to stay on screen for
+	 * @param int    $fadeOut Duration in ticks for fade-out.
+	 * @param Player[]|null $recipients
+	 *
+	 * @return int
+	 */
+	public function broadcastTitle(string $title, string $subtitle = "", int $fadeIn = -1, int $stay = -1, int $fadeOut = -1, $recipients = null){
+		if(!is_array($recipients)){
+			/** @var Player[] $recipients */
+			$recipients = [];
+
+			foreach($this->pluginManager->getPermissionSubscriptions(self::BROADCAST_CHANNEL_USERS) as $permissible){
+				if($permissible instanceof Player and $permissible->hasPermission(self::BROADCAST_CHANNEL_USERS)){
+					$recipients[spl_object_hash($permissible)] = $permissible; // do not send messages directly, or some might be repeated
+				}
+			}
+		}
+
+		/** @var Player[] $recipients */
+		foreach($recipients as $recipient){
+			$recipient->addTitle($title, $subtitle, $fadeIn, $stay, $fadeOut);
+		}
+
+		return count($recipients);
+	}
+
 	/**
 	 * @param string $message
 	 * @param string $permissions