public IEnumerable <FlowKey> GetRoutes(AreaMap area)
{
var singleInstanceTypes = RouteTypes.ToHashSet();
foreach (var typeIds in RouteIds)
{
var type = RouteTypes[typeIds.Type];
singleInstanceTypes.Remove(type);
var flow = area.GetFlow(type);
foreach (var id in typeIds.Ids)
{
yield return(FlowKey.From(flow, id));
}
}
foreach (var type in singleInstanceTypes)
{
yield return(FlowKey.From(area.GetFlow(type)));
}
}
