add any() check to event reader that consumes the iterator

crates/bevy_ecs/src/event.rs

@@ -284,10 +284,15 @@ impl<'w, 's, T: Resource> EventReader<'w, 's, T> {
         self.events.event_reader_len(self.last_event_count.0)
     }
 
-    /// Determines if are any events available to be read without consuming any.
+    /// Determines if there are any events available to be read without consuming any.
     pub fn is_empty(&self) -> bool {
         self.len() == 0
     }
+
+    /// Determines if there are any events available to be read and consumes all events.
+    pub fn any(&mut self) -> bool {
+        self.iter().last().is_some()
+    }
 }
 
 impl<T: Resource> Events<T> {