private Junction newJunction(Edge edgeA, Edge edgeB, Node node, int index)
{
Junction junction = new Junction (screen: Screen, grid: this, from: edgeA, to: edgeB, node: node, index: index);
junction.IsVisible = true;
junction.World = World;
return junction;
}
private void BuildIndex()
{
fromMap.Clear ();
toMap.Clear ();
IndexRebuilt = () => {};
junctionMap.Clear ();
Node zero = new Node (0, 0, 0);
for (int i = 0; i < (int)Math.Floor (_edges.Length / 2f); ++i) {
Edge edge1 = _edges [i * 2 + 0];
Edge edge2 = _edges [i * 2 + 1];
fromMap [edge1] = zero - edge1.Direction;
toMap [edge1] = zero;
fromMap [edge2] = zero;
toMap [edge2] = zero + edge2.Direction;
Node node = NodeAfterEdge (edge1);
Junction junction = new Junction (screen: Screen, grid: this, from: edge1, to: edge2, node: node, index: i * 2);
junctionMap.Add (node, junction);
}
IndexRebuilt ();
}