/// <summary>
/// Returns all populations that are valid for this signature
/// </summary>
private static IEnumerable<EventPopulation> GetApplicable(
EventDescriptor evtDesc,
IEnumerable<EventPopulation> candidates,
IEnumerable<IHasState> allWorldObjs)
{
foreach (EventPopulation candidate in candidates)
if (evtDesc.CheckRequirements(candidate.AsParams(), allWorldObjs) == true)
yield return candidate;
}
