// Token: 0x06002570 RID: 9584 RVA: 0x001A2E38 File Offset: 0x001A1038
        public static void UpdateArea(GraphUpdateObject o, INavmeshHolder graph)
        {
            Bounds  bounds = graph.transform.InverseTransform(o.bounds);
            IntRect irect  = new IntRect(Mathf.FloorToInt(bounds.min.x * 1000f), Mathf.FloorToInt(bounds.min.z * 1000f), Mathf.CeilToInt(bounds.max.x * 1000f), Mathf.CeilToInt(bounds.max.z * 1000f));
            Int3    a      = new Int3(irect.xmin, 0, irect.ymin);
            Int3    b      = new Int3(irect.xmin, 0, irect.ymax);
            Int3    c      = new Int3(irect.xmax, 0, irect.ymin);
            Int3    d      = new Int3(irect.xmax, 0, irect.ymax);
            int     ymin   = ((Int3)bounds.min).y;
            int     ymax   = ((Int3)bounds.max).y;

            graph.GetNodes(delegate(GraphNode _node)
            {
                TriangleMeshNode triangleMeshNode = _node as TriangleMeshNode;
                bool flag = false;
                int num   = 0;
                int num2  = 0;
                int num3  = 0;
                int num4  = 0;
                for (int i = 0; i < 3; i++)
                {
                    Int3 vertexInGraphSpace = triangleMeshNode.GetVertexInGraphSpace(i);
                    if (irect.Contains(vertexInGraphSpace.x, vertexInGraphSpace.z))
                    {
                        flag = true;
                        break;
                    }
                    if (vertexInGraphSpace.x < irect.xmin)
                    {
                        num++;
                    }
                    if (vertexInGraphSpace.x > irect.xmax)
                    {
                        num2++;
                    }
                    if (vertexInGraphSpace.z < irect.ymin)
                    {
                        num3++;
                    }
                    if (vertexInGraphSpace.z > irect.ymax)
                    {
                        num4++;
                    }
                }
                if (!flag && (num == 3 || num2 == 3 || num3 == 3 || num4 == 3))
                {
                    return;
                }
                for (int j = 0; j < 3; j++)
                {
                    int i2 = (j > 1) ? 0 : (j + 1);
                    Int3 vertexInGraphSpace2 = triangleMeshNode.GetVertexInGraphSpace(j);
                    Int3 vertexInGraphSpace3 = triangleMeshNode.GetVertexInGraphSpace(i2);
                    if (VectorMath.SegmentsIntersectXZ(a, b, vertexInGraphSpace2, vertexInGraphSpace3))
                    {
                        flag = true;
                        break;
                    }
                    if (VectorMath.SegmentsIntersectXZ(a, c, vertexInGraphSpace2, vertexInGraphSpace3))
                    {
                        flag = true;
                        break;
                    }
                    if (VectorMath.SegmentsIntersectXZ(c, d, vertexInGraphSpace2, vertexInGraphSpace3))
                    {
                        flag = true;
                        break;
                    }
                    if (VectorMath.SegmentsIntersectXZ(d, b, vertexInGraphSpace2, vertexInGraphSpace3))
                    {
                        flag = true;
                        break;
                    }
                }
                if (flag || triangleMeshNode.ContainsPointInGraphSpace(a) || triangleMeshNode.ContainsPointInGraphSpace(b) || triangleMeshNode.ContainsPointInGraphSpace(c) || triangleMeshNode.ContainsPointInGraphSpace(d))
                {
                    flag = true;
                }
                if (!flag)
                {
                    return;
                }
                int num5 = 0;
                int num6 = 0;
                for (int k = 0; k < 3; k++)
                {
                    Int3 vertexInGraphSpace4 = triangleMeshNode.GetVertexInGraphSpace(k);
                    if (vertexInGraphSpace4.y < ymin)
                    {
                        num6++;
                    }
                    if (vertexInGraphSpace4.y > ymax)
                    {
                        num5++;
                    }
                }
                if (num6 == 3 || num5 == 3)
                {
                    return;
                }
                o.WillUpdateNode(triangleMeshNode);
                o.Apply(triangleMeshNode);
            });
        }