return active edge list while they are not stored

include/bounce/quickhull/qh_hull.h

@@ -106,7 +106,11 @@ public:
 
 	// Get the list of vertices in this convex hull.
 	const qhList<qhVertex>& GetVertexList() const;
-	
+
+	// Get the list of half-edges in this convex hull.
+	// Return the number of edges.
+	u32 GetEdgeList(qhHalfEdge** edges, u32 edgeCapacity) const;
+
 	// Get the list of faces in this convex hull.
 	const qhList<qhFace>& GetFaceList() const;
 

include/bounce/quickhull/qh_hull.inl

@@ -52,6 +52,27 @@ inline const qhList<qhFace>& qhHull::GetFaceList() const
 	return m_faceList;
 }
 
+inline u32 qhHull::GetEdgeList(qhHalfEdge** edges, u32 edgeCapacity) const
+{
+	u32 edgeCount = 0;
+	for (qhFace* f = m_faceList.head; f; f = f->next)
+	{
+		qhHalfEdge* edge = f->edge;
+		do
+		{
+			if (edgeCount == edgeCapacity)
+			{
+				return edgeCount;
+			}
+
+			edges[edgeCount++] = edge;
+			
+			edge = edge->next;
+		} while (edge != f->edge);
+	}
+	return edgeCount;
+}
+
 inline u32 qhHull::GetIterations() const
 {
 	return m_iterations;