public bool MoveNext()
{
while (true)
{
while (_entryEnum == null || !_entryEnum.MoveNext())
{
if (!_tileEnum.MoveNext())
{
return(false);
}
BoxTile tile = Assert.NotNull(_tileEnum.Current);
_entryEnum = _tree.GetTileEnumerator(this, tile.EnumElems());
}
if (_searchBox == null)
{
return(true);
}
if (Assert.NotNull(Current).Box.Intersects(_searchBox))
{
return(true);
}
}
}
public IEnumerable <TileEntry> GetEntries(IBox box)
{
if (!box.Intersects(_tileBox))
{
yield break;
}
foreach (TileEntry entry in _tile.EnumElems())
{
if (entry.Box.Intersects(box))
{
yield return(entry);
}
}
}
internal IEnumerable <Neighborhood> GetNeighborhoods(double searchDistance)
{
if (_searchingTile.ElemsCount <= 0)
{
yield break;
}
if (!HasNeighbourTiles())
{
yield break;
}
List <INeighbourEntryEnumerable> neighbourEntryEnumerators =
GetNeighbourEntryEnumerators();
if (neighbourEntryEnumerators == null)
{
yield break;
}
foreach (TileEntry searchEntry in _searchingTile.EnumElems())
{
IBox search =
GetSearchBox(searchEntry.Box, searchDistance, _master._common);
if (search == null)
{
continue;
}
yield return(new Neighborhood
{
Entry = searchEntry,
Neighbours =
GetNeighbours(search, neighbourEntryEnumerators)
});
}
}