public static B3DFile OpenFile(string filePath)
{
using (BinaryReader reader = new BinaryReader(File.OpenRead(filePath)))
{
if (!reader.ReadBytes(4).SequenceEqual(B3DHeader))
{
throw new InvalidDataException($"File is not b3d!");
}
B3DFile file = new B3DFile();
//Skipped unused information
//TODO: is it really unused???
reader.BaseStream.Seek(4, SeekOrigin.Current);
uint materialListOffset = reader.ReadUInt32();
reader.BaseStream.Seek(4, SeekOrigin.Current);
uint dataOffset = reader.ReadUInt32();
//Read materials
//Jump to material definition
reader.BaseStream.Seek(materialListOffset * 4, SeekOrigin.Begin);
uint materialLibrarySize = reader.ReadUInt32();
file.MaterialLibrary = new List <string>();
for (uint i = 0; i < materialLibrarySize; i++)
{
file.MaterialLibrary.Add(reader.Read32ByteString());
}
//Read Data
//Jump to data definition
reader.BaseStream.Seek(dataOffset * 4, SeekOrigin.Begin);
if (reader.ReadUInt32() == (int)Identifier.Chunk_Start)
{
file.Nodes = new List <INode>();
uint ident;
while ((ident = reader.ReadUInt32()) != (int)Identifier.Chunk_End)
{
//if(ident == 444) continue; // Unused???
if (ident == (int)Identifier.Block_Start)
{
NodeHeader header = reader.Read <NodeHeader>();
INode node = BaseNode.GetNode(header);
node.Read(reader);
file.Nodes.Add(node);
}
}
}
return(file);
}
throw new NotImplementedException();
}
private unsafe static void RenderPage(Transaction tx, Page page, TextWriter sw, string text, bool open)
{
sw.WriteLine(
"<ul><li><input type='checkbox' id='page-{0}' {3} /><label for='page-{0}'>{4}: Page {0:#,#;;0} - {1} - {2:#,#;;0} entries</label><ul>",
page.PageNumber, page.IsLeaf ? "Leaf" : "Branch", page.NumberOfEntries, open ? "checked" : "", text);
for (int i = 0; i < page.NumberOfEntries; i++)
{
var nodeHeader = page.GetNode(i);
if (page.IsLeaf)
{
var key = new Slice(nodeHeader).ToString();
sw.Write("<li>{0} {1} - size: {2:#,#}</li>", key, nodeHeader->Flags, NodeHeader.GetDataSize(tx, nodeHeader));
}
else
{
var key = new Slice(nodeHeader).ToString();
var pageNum = nodeHeader->PageNumber;
if (i == 0)
{
key = "[smallest]";
}
RenderPage(tx, tx.GetReadOnlyPage(pageNum), sw, key, false);
}
}
sw.WriteLine("</ul></li></ul>");
}
public Node GetNode(NodeHeader node)
{
return(this.Find(x => x.Header.ID == node.ID));
}
public Node(NodeHeader header)
{
this.Header = header;
}
