Pathfinding.LevelGridNode.GetPortal C# (CSharp) Method

		public override bool GetPortal (GraphNode other, List<Vector3> left, List<Vector3> right, bool backwards)
		{
			if (backwards) return true;
			
			LayerGridGraph graph = GetGridGraph (GraphIndex);
			int[] neighbourOffsets = graph.neighbourOffsets;
			LevelGridNode[] nodes = graph.nodes;
			int index = NodeInGridIndex;
			
			for (int i=0;i<4;i++) {
				int conn = GetConnectionValue(i);//(gridConnections >> i*4) & 0xF;
				if (conn != LevelGridNode.NoConnection) {
					if (other == nodes[index+neighbourOffsets[i] + graph.width*graph.depth*conn]) {
						Vector3 middle = ((Vector3)(position + other.position))*0.5f;
						Vector3 cross = Vector3.Cross (graph.collision.up, (Vector3)(other.position-position));
						cross.Normalize();
						cross *= graph.nodeSize*0.5f;
						left.Add (middle - cross);
						right.Add (middle + cross);
						return true;
					}
				}
			}
			
			return false;
		}