public void AddObjectToDictionary(SerializableDOMNode actor, Dictionary <FourCC, List <SerializableDOMNode> > actorCategories)
{
string rawFourCC = FourCCConversion.GetStringFromEnum(actor.FourCC);
string fixedFourCC = ChunkHeader.LayerToFourCC(rawFourCC, actor.Layer);
FourCC fixedFourCCEnum = FourCCConversion.GetEnumFromString(fixedFourCC);
if (!actorCategories.ContainsKey(fixedFourCCEnum))
{
actorCategories[fixedFourCCEnum] = new List <SerializableDOMNode>();
}
actorCategories[fixedFourCCEnum].Add(actor);
}
public void ExportToStream(EndianBinaryWriter writer, WScene scene)
{
// Build a dictionary which lists unique FourCC's and a list of all relevant actors.
var actorCategories = new Dictionary <string, List <WActorNode> >();
foreach (var child in scene)
{
WActorNode actor = child as WActorNode;
if (actor != null)
{
string fixedFourCC = ChunkHeader.LayerToFourCC(actor.FourCC, actor.Layer);
if (!actorCategories.ContainsKey(fixedFourCC))
{
actorCategories[fixedFourCC] = new List <WActorNode>();
}
actorCategories[fixedFourCC].Add(actor);
}
}
// Create a chunk header for each one.
var chunkHeaders = new List <ChunkHeader>();
foreach (var kvp in actorCategories)
{
ChunkHeader header = new ChunkHeader();
header.FourCC = kvp.Key;
header.ElementCount = kvp.Value.Count;
chunkHeaders.Add(header);
}
long chunkStart = writer.BaseStream.Position;
// Write the Header
writer.Write(chunkHeaders.Count);
for (int i = 0; i < chunkHeaders.Count; i++)
{
writer.Write((int)0); // Dummy Placeholder values for the Chunk Header.
writer.Write((int)0);
writer.Write((int)0);
}
// For each chunk, write the data for that chunk. Before writing the data, get the current offset and update the header.
List <WActorNode>[] dictionaryData = new List <WActorNode> [actorCategories.Count];
actorCategories.Values.CopyTo(dictionaryData, 0);
for (int i = 0; i < chunkHeaders.Count; i++)
{
ChunkHeader header = chunkHeaders[i];
chunkHeaders[i] = new ChunkHeader(header.FourCC, header.ElementCount, (int)(writer.BaseStream.Position - chunkStart));
List <WActorNode> actors = dictionaryData[i];
foreach (var actor in actors)
{
MapActorDescriptor template = m_sActorDescriptors.Find(x => x.FourCC == actor.FourCC);
if (template == null)
{
Console.WriteLine("Unsupported FourCC (\"{0}\") for exporting!", actor.FourCC);
continue;
}
WriteActorToChunk(actor, template, writer);
}
}
// Now that we've written every actor to file we can go back and re-write the headers now that we know their offsets.
writer.BaseStream.Position = chunkStart + 0x4; // 0x4 is the offset to the Chunk Headers
foreach (var header in chunkHeaders)
{
writer.WriteFixedString(header.FourCC, 4); // FourCC
writer.Write(header.ElementCount); // Number of Entries
writer.Write(header.ChunkOffset); // Offset from start of file.
}
// Seek to the end of the file, and then pad us to 32-byte alignment.
writer.BaseStream.Seek(0, SeekOrigin.End);
int delta = WMath.Pad32Delta(writer.BaseStream.Position);
for (int i = 0; i < delta; i++)
{
writer.Write((byte)0xFF);
}
}
