StepByStepPicking(
FilteringHeuristic filtering) //choosing next value (tries all possible variations of parametrs, if doesnt fit - backtracking will solve the issue)
{
if (filtering == FilteringHeuristic.NONE)
{
if (Value.TeacherValue != Teachers.Last())
{
Value.TeacherValue = Teachers.ElementAt(Teachers.IndexOf(Value.TeacherValue) + 1);
}
else if (Value.AudienceValue != Audiences.Last())
{
Value.TeacherValue = Teachers.First(); // resetting previous data element
Value.AudienceValue = Audiences.ElementAt(Audiences.IndexOf(Value.AudienceValue) + 1);
}
else if (Value.TimeValue != Times.Last())
{
Value.AudienceValue = Audiences.First(); // resetting previous data element
Value.TimeValue = Times.ElementAt(Times.IndexOf(Value.TimeValue) + 1);
}
else if (Value.DayValue != Days.Last())
{
Value.TimeValue = Times.First(); // resetting previous data element
Value.DayValue = Days.ElementAt(Days.IndexOf(Value.DayValue) + 1);
}
}
else
{
Value = new Value(PossibleValues.First());
PossibleValues.RemoveAt(0);
}
}
public bool TriedWholeDomain(ValuePickingHeuristic heuristic, FilteringHeuristic filtering) //TO DO: reduce code
{
if (filtering != FilteringHeuristic.NONE)
{
if (PossibleValues.Count == 0)
{
FillPossibleValues();
return(true);
}
return(false);
}
switch (heuristic)
{
case ValuePickingHeuristic.LCV:
if (PossibleValues.Count == 0)
{
FillPossibleValues();
return(true);
}
return(false);
default:
var lastDayTime = Value.DayValue == Days.Last() && Value.TimeValue == Times.Last();
return(lastDayTime && Value.AudienceValue == Audiences.Last() &&
Value.TeacherValue == Teachers.Last());
}
}
