//=====================================================================================================================
//this Function saves the linear Node array as a text file
//=====================================================================================================================
void SaveTree(string path)
{
string file = "";
//Start with the Tree Depth ,number of nodes; and Root Size
file += TreeDepth.ToString() + "," + nodeArray.Length.ToString() + ";" + VoxelSize.ToString();
for (int i = 0; i < nodeArray.Length; ++i)
{
SDF_Node n = nodeArray[i];
file += "/" + n.index.ToString() + "," + n.c0.ToString() + "," + n.c1.ToString()
+ "," + n.c2.ToString() + "," + n.c3.ToString() + "," + n.c4.ToString()
+ "," + n.c5.ToString() + "," + n.c6.ToString() + "," + n.c7.ToString()
+ "," + n.Min.x.ToString() + "," + n.Min.y.ToString() + "," + n.Min.z.ToString()
+ "," + n.Max.x.ToString() + "," + n.Max.y.ToString() + "," + n.Max.z.ToString()
+ "," + n.SurfacePoint.x.ToString() + "," + n.SurfacePoint.y.ToString() + "," + n.SurfacePoint.z.ToString();
}
//finally add the center of the Octree
Vector3 p = transform.position;
file += '*' + p.x.ToString() + "," + p.y.ToString() + "," + p.z.ToString() + ",";
//PlayerPrefs.SetString(Octree_Name, file);
System.IO.File.WriteAllText(path, file);
}
//Final step Get the Unpacked tree and then pack it into a linear Buffer
void PackTree()
{
//the unpacked Tree is recursively built so we have to turn it into a linear list here before we copy it with proper
//indexing into the final LinearList below
List <TreeNode> LinearUnpackedTree = new List <TreeNode>();
for (int i = 0; i < Unpacked_Tree.Count - 1; ++i) //ignore last node some reason the recursion f***s up when adding an extra garbage node
{
LinearUnpackedTree.Add(Unpacked_Tree[i]);
}
Unpacked_Tree.Clear();
//Go through the unpacked tree and build it linearly
List <SDF_Node> LinearList = new List <SDF_Node>();
for (int i = 0; i < LinearUnpackedTree.Count; ++i)
{
SDF_Node current = new SDF_Node();
Octree.OctreeNode node = LinearUnpackedTree[i].mNode;
Vector3 p = node.Position;
float s = node.SDF.mSize;
current.Min.x = p.x - s;
current.Min.y = p.y - s;
current.Min.z = p.z - s;
current.Max.x = p.x + s;
current.Max.y = p.y + s;
current.Max.z = p.z + s;
current.index = i;
current.SurfacePoint = node.SDF.mPoint;
if (LinearUnpackedTree[i].mChildren != null)
{
current.c0 = FindIndex(LinearUnpackedTree[i].mChildren[0], ref LinearUnpackedTree);
current.c1 = FindIndex(LinearUnpackedTree[i].mChildren[1], ref LinearUnpackedTree);
current.c2 = FindIndex(LinearUnpackedTree[i].mChildren[2], ref LinearUnpackedTree);
current.c3 = FindIndex(LinearUnpackedTree[i].mChildren[3], ref LinearUnpackedTree);
current.c4 = FindIndex(LinearUnpackedTree[i].mChildren[4], ref LinearUnpackedTree);
current.c5 = FindIndex(LinearUnpackedTree[i].mChildren[5], ref LinearUnpackedTree);
current.c6 = FindIndex(LinearUnpackedTree[i].mChildren[6], ref LinearUnpackedTree);
current.c7 = FindIndex(LinearUnpackedTree[i].mChildren[7], ref LinearUnpackedTree);
}
else
{
current.c0 = -1;
current.c1 = -1;
current.c2 = -1;
current.c3 = -1;
current.c4 = -1;
current.c5 = -1;
current.c6 = -1;
current.c7 = -1;
}
LinearList.Add(current);
}
//used to set a ComputeBuffer later on
nodeArray = LinearList.ToArray();
}