public static void Parse <T>(T node, GameBoxReader r, IProgress <GameBoxReadProgress> progress = null) where T : CMwNod
{
var stopwatch = Stopwatch.StartNew();
node.GBX = r.GBX;
var type = node.GetType();
var chunks = new ChunkSet {
Node = node
};
node.Chunks = chunks;
uint?previousChunk = null;
while (!r.BaseStream.CanSeek || r.BaseStream.Position < r.BaseStream.Length)
{
if (r.BaseStream.CanSeek && r.BaseStream.Position + 4 > r.BaseStream.Length)
{
Debug.WriteLine($"Unexpected end of the stream: {r.BaseStream.Position}/{r.BaseStream.Length}");
var bytes = r.ReadBytes((int)(r.BaseStream.Length - r.BaseStream.Position));
break;
}
var chunkID = r.ReadUInt32();
if (chunkID == 0xFACADE01) // no more chunks
{
break;
}
else
{
var logChunk = $"[{node.ClassName}] 0x{chunkID:X8}";
if (r.BaseStream.CanSeek)
{
logChunk += $" ({(float)r.BaseStream.Position / r.BaseStream.Length:0.00%})";
}
if (node.GBX?.ID.HasValue == true && Remap(node.GBX.ID.Value) == node.ID)
{
Log.Write(logChunk);
}
else
{
Log.Write($"~ {logChunk}");
}
}
Chunk chunk;
var chunkRemapped = Chunk.Remap(chunkID);
Type chunkClass = null;
var reflected = ((chunkRemapped & 0xFFFFF000) == node.ID || NodeCacheManager.AvailableInheritanceClasses[type].Contains(chunkRemapped & 0xFFFFF000)) &&
(NodeCacheManager.AvailableChunkClasses[type].TryGetValue(chunkRemapped, out chunkClass) || NodeCacheManager.AvailableChunkClasses[type].TryGetValue(chunkID & 0xFFF, out chunkClass));
var skippable = reflected && chunkClass.BaseType.GetGenericTypeDefinition() == typeof(SkippableChunk <>);
// Unknown or skippable chunk
if (!reflected || skippable)
{
var skip = r.ReadUInt32();
if (skip != 0x534B4950)
{
if (chunkID != 0 && !reflected)
{
var logChunkError = $"[{node.ClassName}] 0x{chunkID:X8} ERROR (wrong chunk format or unknown unskippable chunk)";
if (node.GBX?.ID.HasValue == true && Remap(node.GBX.ID.Value) == node.ID)
{
Log.Write(logChunkError, ConsoleColor.Red);
}
else
{
Log.Write($"~ {logChunkError}", ConsoleColor.Red);
}
throw new Exception($"Wrong chunk format or unskippable chunk: 0x{chunkID:X8} (" +
$"{NodeCacheManager.Names.Where(x => x.Key == Chunk.Remap(chunkID & 0xFFFFF000)).Select(x => x.Value).FirstOrDefault() ?? "unknown class"})" +
$"\nPrevious chunk: 0x{previousChunk ?? 0:X8} (" +
$"{(previousChunk.HasValue ? (NodeCacheManager.Names.Where(x => x.Key == Chunk.Remap(previousChunk.Value & 0xFFFFF000)).Select(x => x.Value).FirstOrDefault() ?? "unknown class") : "not a class")})");
/* Usually breaks in the current state and causes confusion
*
* var buffer = BitConverter.GetBytes(chunkID);
* using (var restMs = new MemoryStream(ushort.MaxValue))
* {
* restMs.Write(buffer, 0, buffer.Length);
*
* while (r.PeekUInt32() != 0xFACADE01)
* restMs.WriteByte(r.ReadByte());
*
* node.Rest = restMs.ToArray();
* }
* Debug.WriteLine("FACADE found.");*/
}
break;
}
var chunkDataSize = r.ReadInt32();
var chunkData = new byte[chunkDataSize];
if (chunkDataSize > 0)
{
r.Read(chunkData, 0, chunkDataSize);
}
if (reflected)
{
var ignoreChunkAttribute = chunkClass.GetCustomAttribute <IgnoreChunkAttribute>();
var constructor = Array.Find(chunkClass.GetConstructors(), x => x.GetParameters().Length == 0);
if (constructor == null)
{
throw new ArgumentException($"{type.FullName} doesn't have a parameterless constructor.");
}
var c = (Chunk)constructor.Invoke(new object[0]);
c.Node = node;
c.GBX = node.GBX;
((ISkippableChunk)c).Data = chunkData;
if (chunkData == null || chunkData.Length == 0)
{
((ISkippableChunk)c).Discovered = true;
}
chunks.Add(c);
if (ignoreChunkAttribute == null)
{
c.OnLoad();
if (chunkClass.GetCustomAttribute <ChunkAttribute>().ProcessSync)
{
((ISkippableChunk)c).Discover();
}
}
chunk = c;
}
else
{
Debug.WriteLine("Unknown skippable chunk: " + chunkID.ToString("X"));
chunk = (Chunk)Activator.CreateInstance(typeof(SkippableChunk <>).MakeGenericType(type), node, chunkRemapped, chunkData);
chunk.GBX = node.GBX;
chunks.Add(chunk);
}
}
else // Known or unskippable chunk
{
var constructor = Array.Find(chunkClass.GetConstructors(), x => x.GetParameters().Length == 0);
if (constructor == null)
{
throw new ArgumentException($"{type.FullName} doesn't have a parameterless constructor.");
}
var c = (Chunk)constructor.Invoke(new object[0]);
c.Node = node;
c.OnLoad();
chunks.Add(c);
//r.Chunk = (Chunk)c; // Set chunk temporarily for reading
var posBefore = r.BaseStream.Position;
GameBoxReaderWriter gbxrw = new GameBoxReaderWriter(r);
var attributes = chunkClass.GetCustomAttributes();
var ignoreChunkAttribute = default(IgnoreChunkAttribute);
var autoReadWriteChunkAttribute = default(AutoReadWriteChunkAttribute);
foreach (var att in attributes)
{
if (att is IgnoreChunkAttribute ignoreChunkAtt)
{
ignoreChunkAttribute = ignoreChunkAtt;
}
if (att is AutoReadWriteChunkAttribute autoReadWriteChunkAtt)
{
autoReadWriteChunkAttribute = autoReadWriteChunkAtt;
}
}
try
{
if (ignoreChunkAttribute == null)
{
if (autoReadWriteChunkAttribute == null)
{
c.ReadWrite(node, gbxrw);
}
else
{
var unknown = new GameBoxWriter(c.Unknown, r.Lookbackable);
var unknownData = r.ReadUntilFacade();
unknown.Write(unknownData, 0, unknownData.Length);
}
}
else
{
throw new Exception($"Chunk 0x{chunkID & 0xFFF:x3} from class {node.ClassName} is known but its content is unknown to read.");
}
}
catch (EndOfStreamException)
{
Debug.WriteLine($"Unexpected end of the stream while reading the chunk.");
}
c.Progress = (int)(r.BaseStream.Position - posBefore);
chunk = c;
}
progress?.Report(new GameBoxReadProgress(GameBoxReadProgressStage.Body, (float)r.BaseStream.Position / r.BaseStream.Length, node.GBX, chunk));
previousChunk = chunkID;
}
stopwatch.Stop();
var logNodeCompletion = $"[{node.ClassName}] DONE! ({stopwatch.Elapsed.TotalMilliseconds}ms)";
if (node.GBX.ID.HasValue == true && Remap(node.GBX.ID.Value) == node.ID)
{
Log.Write(logNodeCompletion, ConsoleColor.Green);
}
else
{
Log.Write($"~ {logNodeCompletion}", ConsoleColor.Green);
}
}