protected override bool OnNext(out Pair <T> current)
{
while (true)
{
if (_otherCandidates == null)
{
if (_candidates.MoveNext())
{
var candidate = _candidates.Current;
Aabb candidateAabb = _partition.GetAabbForItem(candidate);
_otherCandidates = _otherPartition.GetOverlaps(candidateAabb).GetEnumerator();
}
else
{
current = default(Pair <T>);
return(false);
}
}
while (_otherCandidates.MoveNext())
{
var candidate = _candidates.Current;
var otherCandidate = _otherCandidates.Current;
var overlap = new Pair <T>(candidate, otherCandidate);
if (_partition.Filter == null || _partition.Filter.Filter(overlap))
{
current = overlap;
return(true);
}
}
_otherCandidates.Dispose();
_otherCandidates = null;
}
}
public static IEnumerable <T> Create(BasePartition <T> partition, T item)
{
var enumerable = Pool.Obtain();
enumerable._partition = partition;
enumerable._item = item;
Aabb aabb = partition.GetAabbForItem(item);
enumerable._enumerator = partition.GetOverlaps(aabb).GetEnumerator();
return(enumerable);
}
protected override bool OnNext(out T current)
{
while (_enumerator.MoveNext())
{
var candidate = _enumerator.Current;
if (GeometryHelper.HaveContact(_partition.GetAabbForItem(candidate), _ray.Origin, _rayDirectionInverse, _ray.Length, _epsilon))
{
current = candidate;
return(true);
}
}
current = default(T);
return(false);
}