private RouteView CreateRoute(IRoute route, IEnumerable <TownView> towns)
{
var obj = Instantiate(routePrefab, routeRoot);
if (obj == null)
{
throw new NullReferenceException();
}
var view = obj.GetComponent <RouteView>();
var townViews = towns.ToList();
var fromTown = townViews.Single(t => t.townId == route.From.Id);
var toTown = townViews.Single(t => t.townId == route.To.Id);
view.Initialize(new RouteData(Guid.NewGuid(), fromTown.transform.position,
toTown.transform.position, route.FlowPower()));
view.OnSelected.Subscribe(_ => OnSelected(view)).AddTo(this);
route.OnRecalculation
.Where(_ => route.Id == _selectedRouteId.Value)
.Subscribe(_ => view.UpdateFlowPower(route.FlowPower()))
.AddTo(this);
route.OnCargoChanged
.Subscribe(items => view.UpdateCargoText(items))
.AddTo(this);
return(view);
}