make EventManager#callEvent return event

common/api/core/src/main/java/com/dfsek/terra/api/event/EventManager.java

@@ -19,7 +19,7 @@ public interface EventManager {
      *
      * @param event Event to pass to all registered EventListeners.
      */
-    void callEvent(Event event);
+    <T extends Event> T callEvent(T event);
     
     <T extends EventHandler> void registerHandler(Class<T> clazz, T handler);
     

common/implementation/base/src/main/java/com/dfsek/terra/event/EventManagerImpl.java

@@ -34,8 +34,9 @@ public class EventManagerImpl implements EventManager {
     }
     
     @Override
-    public void callEvent(Event event) {
+    public <T extends Event> T callEvent(T event) {
         handlers.values().forEach(handler -> handler.handle(event));
+        return event;
     }
     
     @Override