public NodeIndexQuadTree.VectorIndexPair ActualClosestTo(Vector2 pos)
{
NodeIndexQuadTree.VectorIndexPair opp =
ObjectsWithinNode.OrderBy(a => Vector2.Distance(pos, a.Position)).FirstOrDefault();
return(opp ?? null);
}
public Vector2 ActualClosestPointTo(Vector2 pos)
{
NodeIndexQuadTree.VectorIndexPair opp =
ObjectsWithinNode.OrderBy(a => Vector2.Distance(pos, a.Position)).FirstOrDefault();
return(opp == null ? Vector2.zero : opp.Position);
}
private NodeIndexQuadTree.VectorIndexPair ObjectClosestToRecursive(Vector2 pos)
{
if (ObjectsWithinNode.Length == 0 || ObjectsWithinNode.Any() == false)
{
return(null);
}
NodeIndexQuadTree.VectorIndexPair found = null;
if (NodeBounds.Contains(pos))
{
foreach (NodeIndexQuadTreeNode child in ChildNodes)
{
found = child.ObjectClosestToRecursive(pos);
if (found != null)
{
break;
}
}
if (found == null)
{
foreach (var t in
ObjectsWithinNode.OrderBy(a => Vector2.Distance(a.Position, pos)))
{
if (ObstructionLayer == "" || Physics2D.Raycast(pos, ((Vector2)t.Position - pos).normalized, Vector2.Distance(pos, t.Position), 1 << LayerMask.NameToLayer(ObstructionLayer)) == false)
{
found = t;
break;
}
}
}
}
return(found);
}
public Vector2 ClosestPointTo(Vector2 pos)
{
NodeIndexQuadTree.VectorIndexPair foundPos = ObjectClosestToRecursive(pos);
return(foundPos != null ? foundPos.Position : pos);
}