public static UndertaleChunk Unserialize(UndertaleReader reader)
{
string name = "(unknown)";
try
{
name = new string(reader.ReadChars(4));
uint length = reader.ReadUInt32();
// TODO: I can't think of a cleaner way to do this...
Type type = Type.GetType(typeof(UndertaleChunk).FullName + name);
if (type == null)
{
throw new IOException("Unknown chunk " + name + "!!!");
/*Debug.WriteLine("Unknown chunk " + name + "!!!");
* reader.Position = reader.Position + length;
* return null;*/
}
UndertaleChunk chunk = (UndertaleChunk)Activator.CreateInstance(type);
Debug.Assert(chunk.Name == name);
chunk.Length = length;
Debug.WriteLine("Reading chunk " + chunk.Name);
var lenReader = reader.EnsureLengthFromHere(chunk.Length);
chunk.UnserializeChunk(reader);
if (name != "FORM" && name != "AUDO") // TODO: needs a better way to detect last chunk
{
UndertaleGeneralInfo generalInfo = name == "GEN8" ? ((UndertaleChunkGEN8)chunk).Object : reader.undertaleData.GeneralInfo;
// These versions introduced new padding
// all chunks now start on 16-byte boundaries
// (but the padding is included with length of previous chunk)
if (generalInfo.Major >= 2 || (generalInfo.Major == 1 && generalInfo.Build >= 9999))
{
while (reader.Position % 16 != 0)
{
if (reader.ReadByte() != 0)
{
throw new Exception("Chunk padding error");
}
}
}
}
lenReader.ToHere();
return(chunk);
}
catch (UndertaleSerializationException e)
{
throw new UndertaleSerializationException(e.Message + " in chunk " + name);
}
catch (Exception e)
{
throw new UndertaleSerializationException(e.Message + "\nat " + reader.Position.ToString("X8") + " while reading chunk " + name, e);
}
}
public void Serialize(UndertaleWriter writer)
{
try
{
Debug.Assert(Name != null);
writer.Write(Name.ToCharArray());
var lenWriter = writer.WriteLengthHere();
Debug.WriteLine("Writing chunk " + Name);
lenWriter.FromHere();
SerializeChunk(writer);
if (Name != "FORM" && Name != writer.LastChunkName)
{
UndertaleGeneralInfo generalInfo = Name == "GEN8" ? ((UndertaleChunkGEN8)this).Object : writer.undertaleData?.GeneralInfo;
// These versions introduced new padding
// all chunks now start on 16-byte boundaries
// (but the padding is included with length of previous chunk)
// TODO: what about the debug data??
if (generalInfo != null && (generalInfo.Major >= 2 || (generalInfo.Major == 1 && generalInfo.Build >= 9999)))
{
int e = writer.undertaleData.PaddingAlignException;
uint pad = (e == -1 ? 16 : (uint)e);
while (writer.Position % pad != 0)
{
writer.Write((byte)0);
}
}
}
Length = lenWriter.ToHere();
}
catch (UndertaleSerializationException e)
{
throw new UndertaleSerializationException(e.Message + " in chunk " + Name, e);
}
catch (Exception e)
{
throw new UndertaleSerializationException(e.Message + "\nat " + writer.Position.ToString("X8") + " while reading chunk " + Name, e);
}
}
public GeneralInfoEditor(UndertaleGeneralInfo generalInfo, UndertaleOptions options, UndertaleLanguage language)
{
this.GeneralInfo = generalInfo;
this.Options = options;
this.Language = language;
}