public override void Update(float deltaTime)
        {
            baseGameplay.Update(deltaTime);

            if (invalidatedTiles.Count > 0)
            {
                MemoryStream ms = new MemoryStream();
                BinaryWriter bw = new BinaryWriter(ms);

                bw.Write(invalidatedTiles.Count);

                foreach (TilePosition pos in invalidatedTiles)
                {
                    Tile tile = world.tileManager.GetTile(pos);

                    SerializationUtils.Write(bw, pos);
                    bw.Write(tile.Serialize());
                }

                stats.multiplayerSentTiles += invalidatedTiles.Count;

                invalidatedTiles.Clear();

                server.SendToEveryone(
                    new MultiplayerAction(
                        MultiplayerAction.Action.TILE_INVALIDATED,
                        ms.ToArray()),
                    -1);
            }


            if (world.avatarManager.player != null)
            {
                timerSendPosition += deltaTime;

                if (timerSendPosition > 0.1f)
                {
                    server.SendToEveryone(new MultiplayerAction(
                                              MultiplayerAction.Action.AVATAR_MOVE,
                                              new String[] {
                        world.avatarManager.player.objectId.ToString(),
                        world.avatarManager.player.position.x.ToString(),
                        world.avatarManager.player.position.y.ToString(),
                        world.avatarManager.player.position.z.ToString(),
                        world.avatarManager.player.rotation.x.ToString(),
                        world.avatarManager.player.rotation.y.ToString(),
                        world.avatarManager.player.rotation.z.ToString()
                    }),
                                          world.avatarManager.player.objectId);

                    timerSendPosition = 0.0f;
                }
            }

            server.Update();
        }