better code

src/ship/packet/handler/lobby.rs

@@ -70,10 +70,7 @@ pub fn change_lobby(id: ClientId,
     let leave_lobby = packet::builder::lobby::remove_from_lobby(id, client_location)?;
     let old_neighbors = client_location.get_client_neighbors(id).unwrap();
     let mut lobby = LobbyId(requested_lobby as usize);
-    match client_location.add_client_to_lobby(id, lobby) {
-        Ok(lobby) => {
-        }
-        Err(err) => {
+    if let Err(_) = client_location.add_client_to_lobby(id, lobby) {
             match prev_area {
                 RoomLobby::Lobby(lobby) => {
                     let dialog = SmallDialog::new(String::from("Lobby is full."));
@@ -83,7 +80,6 @@ pub fn change_lobby(id: ClientId,
                     lobby = client_location.add_client_to_next_available_lobby(id, lobby).map_err(|_| ShipError::TooManyClients)?;
                 }
             }
-        }
     }
     let join_lobby = packet::builder::lobby::join_lobby(id, lobby, client_location, clients, level_table)?;
     let addto = packet::builder::lobby::add_to_lobby(id, lobby, client_location, clients, level_table)?;