fix room creation, remove char from lobby on creation

src/ship/location.rs

@@ -234,16 +234,16 @@ impl ClientLocation {
     }
 
     pub fn new_room(&mut self, id: ClientId) -> Result<RoomId, CreateRoomError> {
-        self.err_if_client_is_in_area(id, CreateRoomError::ClientInAreaAlready)?;
         let (room_id, empty_room) = self.rooms.iter_mut()
             .enumerate()
-            .filter(|(_, k)| k.is_some())
+            .filter(|(_, k)| k.is_none())
             .nth(0)
             .ok_or(CreateRoomError::NoOpenSlots)?;
 
         let mut new_room = Room::new();
         new_room.add(id);
         *empty_room = Some(Arc::new(RwLock::new(new_room)));
+        self.remove_from_location(id);
 
         Ok(RoomId(room_id))
     }

src/ship/ship.rs

@@ -341,9 +341,17 @@ impl<EG: EntityGateway> ShipServerState<EG> {
     }
 
     fn create_room(&mut self, id: ClientId, create_room: &CreateRoom) -> Box<dyn Iterator<Item = (ClientId, SendShipPacket)>> {
+        let area = self.client_location.get_area_by_user(id);
+        let area_client = area.clients().into_iter().filter(|client| {
+            client.client_id == id
+        }).next().unwrap();
+        let other_clients = area.clients().into_iter()
+            .filter(move |c| {
+                c.client_id != id
+            });
         let room_id = match self.client_location.new_room(id) {
             Ok(room_id) => room_id,
-            Err(e) => return Box::new(vec![(id, SendShipPacket::SmallDialog(SmallDialog::new("could not create room".to_owned())))].into_iter())
+            Err(err) => return Box::new(vec![(id, SendShipPacket::SmallDialog(SmallDialog::new(format!("could not create room: {:?}", err))))].into_iter())
         };
 
         let room = room::RoomState::from_create_room(create_room).unwrap();
@@ -377,8 +385,10 @@ impl<EG: EntityGateway> ShipServerState<EG> {
             unknown: 0,
         };
 
-        Box::new(vec![(id, SendShipPacket::JoinRoom(join_room))].into_iter())
-        //self.rooms.insert(room_id, room);
+        let leader = area.leader();
+        Box::new(vec![(id, SendShipPacket::JoinRoom(join_room))].into_iter().chain(other_clients.map(move |c| {
+            (c.client_id, SendShipPacket::LeaveLobby(LeaveLobby::new(area_client.index as u8, leader.index as u8)))
+        })))
     }
 }