added some error handling

src/ship/packet/builder/lobby.rs

@@ -65,8 +65,10 @@ pub fn add_to_lobby(id: ClientId,
 pub fn remove_from_lobby(id: ClientId,
                         client_location: &ClientLocation)
                         -> Result<LeaveLobby, ShipError> {
-    let prev_area_index = client_location.get_local_client(id).unwrap().local_client.id();
-    let prev_area_leader_index = client_location.get_area_leader(client_location.get_area(id).unwrap()).unwrap().local_client.id();
+    let prev_area_index = client_location.get_local_client(id).map_err(|err| -> ClientLocationError { err.into() })?.local_client.id();
+    let prev_area_leader_index = client_location.get_area_leader(client_location.get_area(id)
+        .map_err(|err| -> ClientLocationError { err.into() })?)
+        .map_err(|err| -> ClientLocationError { err.into() })?.local_client.id();
     Ok(LeaveLobby {
         client: prev_area_index,
         leader: prev_area_leader_index,