send hole punch directly after storing address

src/player.rs

@@ -142,7 +142,12 @@ impl PlayerActor {
               }
               WriteMessage::SetUdp(port) => {
                 trace!("now connected on udp!");
-                addr = Some(SocketAddr::new(ip, port))
+                addr = Some(SocketAddr::new(ip, port));
+                
+                let mut buf = [0; 256];
+                let mut writer = Cursor::new(buf.as_mut_slice());
+                write_packet(&mut writer, user_id, PacketData::HolePunch(HolePunch)).await.unwrap();
+                socket.send_to(&buf, addr.as_ref().unwrap()).await.expect("kys");
               }
             }
           }