Pathfinding.TriangleMeshNode.SharedEdge C# (CSharp) Method

		public int SharedEdge (GraphNode other) {
			//Debug.Log ("SHARED");
			int a, b;
			GetPortal(other, null, null, false, out a, out b);
			//Debug.Log ("/SHARED");
			return a;
		}
		

        // Token: 0x0600229B RID: 8859 RVA: 0x00190E64 File Offset: 0x0018F064
        public static void GetContours(INavmesh navmesh, Action <List <Int3>, bool> results)
        {
            bool[] uses = new bool[3];
            Dictionary <int, int>  outline         = new Dictionary <int, int>();
            Dictionary <int, Int3> vertexPositions = new Dictionary <int, Int3>();
            HashSet <int>          hasInEdge       = new HashSet <int>();

            navmesh.GetNodes(delegate(GraphNode _node)
            {
                TriangleMeshNode triangleMeshNode = _node as TriangleMeshNode;
                uses[0] = (uses[1] = (uses[2] = false));
                if (triangleMeshNode != null)
                {
                    for (int i = 0; i < triangleMeshNode.connections.Length; i++)
                    {
                        TriangleMeshNode triangleMeshNode2 = triangleMeshNode.connections[i].node as TriangleMeshNode;
                        if (triangleMeshNode2 != null)
                        {
                            int num = triangleMeshNode.SharedEdge(triangleMeshNode2);
                            if (num != -1)
                            {
                                uses[num] = true;
                            }
                        }
                    }
                    for (int j = 0; j < 3; j++)
                    {
                        if (!uses[j])
                        {
                            int i2 = j;
                            int i3 = (j + 1) % triangleMeshNode.GetVertexCount();
                            outline[triangleMeshNode.GetVertexIndex(i2)] = triangleMeshNode.GetVertexIndex(i3);
                            hasInEdge.Add(triangleMeshNode.GetVertexIndex(i3));
                            vertexPositions[triangleMeshNode.GetVertexIndex(i2)] = triangleMeshNode.GetVertex(i2);
                            vertexPositions[triangleMeshNode.GetVertexIndex(i3)] = triangleMeshNode.GetVertex(i3);
                        }
                    }
                }
            });
            Polygon.TraceContours(outline, hasInEdge, delegate(List <int> chain, bool cycle)
            {
                List <Int3> list = ListPool <Int3> .Claim();
                for (int i = 0; i < chain.Count; i++)
                {
                    list.Add(vertexPositions[chain[i]]);
                }
                results(list, cycle);
            });
        }