Added timings for calling events

this gives a somewhat better overview of events, particularly if many plugins are subscribed to the same costly event (e.g. PlayerMoveEvent).

In addition, it allows us to see the frequency that events are occurring.

src/event/Event.php

@@ -26,6 +26,7 @@ declare(strict_types=1);
  */
 namespace pocketmine\event;
 
+use pocketmine\timings\Timings;
 use function get_class;
 
 abstract class Event{
@@ -51,6 +52,9 @@ abstract class Event{
 			throw new \RuntimeException("Recursive event call detected (reached max depth of " . self::MAX_EVENT_CALL_DEPTH . " calls)");
 		}
 
+		$timings = Timings::getEventTimings($this);
+		$timings->startTiming();
+
 		$handlerList = HandlerListManager::global()->getListFor(get_class($this));
 
 		++self::$eventCallDepth;
@@ -67,6 +71,7 @@ abstract class Event{
 			}
 		}finally{
 			--self::$eventCallDepth;
+			$timings->stopTiming();
 		}
 	}
 }

src/timings/Timings.php

@@ -28,6 +28,8 @@ use pocketmine\entity\Entity;
 use pocketmine\network\mcpe\protocol\ClientboundPacket;
 use pocketmine\network\mcpe\protocol\ServerboundPacket;
 use pocketmine\scheduler\TaskHandler;
+use function get_class;
+use function str_starts_with;
 
 abstract class Timings{
 	public const INCLUDED_BY_OTHER_TIMINGS_PREFIX = "** ";
@@ -153,6 +155,9 @@ abstract class Timings{
 
 	public static TimingsHandler $playerMove;
 
+	/** @var TimingsHandler[] */
+	private static array $events = [];
+
 	public static function init() : void{
 		if(self::$initialized){
 			return;
@@ -294,4 +299,18 @@ abstract class Timings{
 
 		return self::$packetSendTimingMap[$pid];
 	}
+
+	public static function getEventTimings(Event $event) : TimingsHandler{
+		$eventClass = get_class($event);
+		if(!isset(self::$events[$eventClass])){
+			if(str_starts_with($eventClass, "pocketmine\\event\\")){
+				$name = (new \ReflectionClass($event))->getShortName();
+			}else{
+				$name = $eventClass;
+			}
+			self::$events[$eventClass] = new TimingsHandler($name, group: "Events");
+		}
+
+		return self::$events[$eventClass];
+	}
 }