private void SendDropRequest(EntityId heldObjectId)
        {
            var update           = new Grab.Update();
            var dropRequestEvent = new DropRequestEvent(heldObjectId);

            update.AddDropRequest(dropRequestEvent);
            GrabWriter.Send(update);
        }
        private void SendPickupRequest(ControllerSide controllerSide, EntityId reachableObjectId)
        {
            var update           = new Grab.Update();
            var grabRequestEvent = new GrabRequestEvent(reachableObjectId, controllerSide);

            update.AddGrabRequest(grabRequestEvent);
            GrabWriter.Send(update);
        }