public List <TwisonLink> Filter(TwisonPassage active)
{
var requiredList = active.links
.Select(i => Tuple.Create(i, i.passage.tags.Where(j => j.StartsWith("Requires:")).ToList()))
.Where(i => i.Item2.Count > 0);
var requiredFilters = requiredList.Where(i => i.Item2.Any(j =>
{
var requiredTag = j.Substring("Requires:".Length);
return(!_tags.Contains(requiredTag));
}));
var lockedList = active.links
.Select(i => Tuple.Create(i, i.passage.tags.Where(j => j.StartsWith("Locked:")).ToList()))
.Where(i => i.Item2.Count > 0);
var lockedFilters = lockedList.Where(i => i.Item2.Any(j =>
{
var lockedTag = j.Substring("Locked:".Length);
return(_tags.Contains(lockedTag));
}));
return(active.links.Where(i =>
{
return requiredFilters.All(j => j.Item1 != i) &&
lockedFilters.All(j => j.Item1 != i);
}).ToList());
}
public void OnEnterState(TwisonPassage active)
{
var snapshot = _tags.ToList();
active?.tags?.Where(i => !snapshot.Contains(i)).ToList().ForEach(i =>
{
if (i.StartsWith("Drop"))
{
var dropTag = i.Substring("Drop:".Length);
if (_tags.Contains(dropTag))
{
_tags.Remove(dropTag);
}
}
else
{
_tags.Add(i);
}
});
}
public void OnExitState(TwisonPassage active)
{
}
public TwisonValidationError(string error, TwisonPassage passage) : base(error)
{
Passage = passage;
}
