Pathfinding.PointKDTree.CollectAndClear C# (CSharp) Method

		void CollectAndClear (int index, List<GraphNode> buffer) {
			var nodes = tree[index].data;
			var count = tree[index].count;

			if (nodes != null) {
				tree[index] = new Node();
				for (int i = 0; i < count; i++) {
					buffer.Add(nodes[i]);
					nodes[i] = null;
				}
				arrayCache.Push(nodes);
			} else {
				CollectAndClear(index*2, buffer);
				CollectAndClear(index*2 + 1, buffer);
			}
		}