public static TilesHandler Create(NeighborhoodEnumerator master)
{
var created = new TilesHandler(master);
created._searchDim = -1;
return(created);
}
private double[] GetSearchExtent(int dim)
{
TilesHandler t = this;
while (t != null)
{
if (t._searchDim == dim)
{
return(t._searchExtent);
}
t = t._parent;
}
Box b = _master._common;
return(new[] { b.Min[dim], b.Max[dim] });
}
public bool MoveNext()
{
while (true)
{
if (_tileNeighborhoods != null && _tileNeighborhoods.MoveNext())
{
SetCurrent(_tileNeighborhoods.Current);
return(true);
}
_tilesHandler = _tilesHandler.GetNext();
if (_tilesHandler == null)
{
return(false);
}
_tileNeighborhoods = GetTileNeighborhoods().GetEnumerator();
}
}
public void Reset()
{
_tileNeighborhoods = null;
_tilesHandler = TilesHandler.Create(this);
}
public TilesHandler GetNext()
{
var next = new TilesHandler(_master);
if (_searchingTile == null)
{
IBox search = GetSearchBox(_master._searchingTree.UnitBox,
_master._searchDistance,
_master._common);
if (search == null || !search.Intersects(_master._neighbourTree.UnitBox))
{
return(null);
}
BoxTile searchingTile = _master._searchingTree.MainTile;
BoxTile neighbourTile = _master._neighbourTree.MainTile;
var neighbourTiles = new LinkedList <BoxTile>();
neighbourTiles.AddFirst(neighbourTile);
next._searchingTile = searchingTile;
next._parent = this;
next.Init(neighbourTiles);
}
else
{
BoxTile nextSearchTile;
TilesHandler nextParent = this;
if (!nextParent.HasNeighbourTiles() ||
nextParent._searchingTile.Child0 == null)
{
// MoveUp;
while (nextParent != null && nextParent._parent != null &&
nextParent._parent._searchingTile != null &&
nextParent._parent._searchingTile.Child1 ==
nextParent._searchingTile)
{
nextParent = nextParent._parent;
}
if (nextParent == null || nextParent._parent == null ||
nextParent._parent._searchingTile == null)
{
return(null);
}
nextParent = nextParent._parent;
nextSearchTile = nextParent._searchingTile.Child1;
}
else
{
nextSearchTile = nextParent._searchingTile.Child0;
}
next._searchingTile = nextSearchTile;
next._parent = nextParent;
next.Init(nextParent._neighbourTiles);
}
return(next);
}
