public override Level Read(Stream src, string name, bool metadata)
{
using (GZipStream s = new GZipStream(src, CompressionMode.Decompress)) {
Level lvl = new Level(name, 0, 0, 0);
DatReader r = new DatReader();
r.src = new BinaryReader(s);
if (r.ReadInt32() != 0x271BB788 || r.ReadUInt8() != 0x02)
{
throw new InvalidDataException("Unexpected constant in .dat file");
}
if (r.ReadUInt16() != 0xACED)
{
throw new InvalidDataException("Invalid stream magic");
}
if (r.ReadUInt16() != 0x0005)
{
throw new InvalidDataException("Invalid stream version");
}
JObject obj = (JObject)ReadObject(r);
ParseRootObject(lvl, obj);
return(lvl);
}
}
static Level ReadFormat1(Level lvl, DatReader r)
{
r.ReadUtf8(); // level name
r.ReadUtf8(); // level author
r.ReadInt64(); // created timestamp (currentTimeMillis)
lvl.Width = r.ReadUInt16();
lvl.Length = r.ReadUInt16();
lvl.Height = r.ReadUInt16();
lvl.blocks = r.ReadBytes(lvl.Width * lvl.Height * lvl.Length); // TODO readfully
SetupClassic013(lvl);
return(lvl);
}
// Really annoying map format to parse, because it's just a Java serialised object
// http://www.javaworld.com/article/2072752/the-java-serialization-algorithm-revealed.html
// https://docs.oracle.com/javase/7/docs/platform/serialization/spec/protocol.html
// Good reference tool for comparison
// https://github.com/NickstaDB/SerializationDumper
static Level ReadFormat2(Level lvl, DatReader r)
{
if (r.ReadUInt16() != 0xACED)
{
throw new InvalidDataException("Invalid stream magic");
}
if (r.ReadUInt16() != 0x0005)
{
throw new InvalidDataException("Invalid stream version");
}
JObject obj = (JObject)ReadObject(r);
ParseRootObject(lvl, obj);
return(lvl);
}
static unsafe object Value(DatReader r, char type)
{
if (type == 'B')
{
return(r.ReadUInt8());
}
if (type == 'C')
{
return((char)r.ReadUInt16());
}
if (type == 'D')
{
long tmp = r.ReadInt64(); return(*(double *)(&tmp));
}
if (type == 'F')
{
int tmp = r.ReadInt32(); return(*(float *)(&tmp));
}
if (type == 'I')
{
return(r.ReadInt32());
}
if (type == 'J')
{
return(r.ReadInt64());
}
if (type == 'S')
{
return(r.ReadInt16());
}
if (type == 'Z')
{
return(r.ReadUInt8() != 0);
}
if (type == 'L')
{
return(ReadObject(r));
}
if (type == '[')
{
return(ReadObject(r));
}
throw new InvalidDataException("Invalid value code: " + type);
}
static JClassDesc NewClassDesc(DatReader r)
{
JClassDesc desc = new JClassDesc();
desc.Name = r.ReadUtf8();
r.ReadInt64(); // serial UID
r.handles.Add(desc);
// read class desc info
desc.Flags = r.ReadUInt8();
desc.Fields = new JFieldDesc[r.ReadUInt16()];
for (int i = 0; i < desc.Fields.Length; i++)
{
desc.Fields[i] = FieldDesc(r);
}
SkipAnnotation(r);
desc.SuperClass = ClassDesc(r);
return(desc);
}
