private NBTFile(string path)
{
using (GZipStream gStream = new GZipStream(new FileStream(path, FileMode.Open), CompressionMode.Decompress))
{
gStream.CopyTo(Stream);
}
Stream.Position = 0;
//start
if (Stream.ReadTag() == TagType.Compound)
{
File = new Tag();
File.Type = TagType.Compound;
ParseTag(File);
}
}
public object FindPayload(string name, Tag tag = null, bool IsList = false)
{
if (tag == null)
{
tag = File;
}
if (!IsList && tag.Name == name)
{
return tag.Payload;
}
if (tag.Type == TagType.Compound)
{
foreach (Tag t in (List<Tag>)tag.Payload)
{
object p = FindPayload(name, t);
if (p != null)
{
return p;
}
}
}
else if (tag.Type == TagType.List)
{
foreach (Tag t in (Tag[])tag.Payload)
{
object p = FindPayload(name, t, true);
if (p != null)
{
return p;
}
}
}
return null;
}
private void SaveTag(Tag tag, bool IsList = false)
{
Stream.WriteTag(tag.Type);
if (tag.Type != TagType.End)
{
if (!IsList)
{
Stream.WriteString(tag.Name);
}
switch (tag.Type)
{
case TagType.Byte:
Stream.WriteByte((byte)tag.Payload);
break;
case TagType.ByteArray:
byte[] payload = (byte[])tag.Payload;
Stream.WriteInt(payload.Length);
foreach (byte b in payload)
{
Stream.WriteByte(b);
}
break;
case TagType.Compound:
List<Tag> pload = (List<Tag>)tag.Payload;
foreach (Tag t in pload)
{
SaveTag(t);
}
break;
case TagType.Double:
Stream.WriteDouble((double)tag.Payload);
break;
case TagType.Float:
Stream.WriteFloat((float)tag.Payload);
break;
case TagType.Int:
Stream.WriteInt((int)tag.Payload);
break;
case TagType.List:
Tag[] load = (Tag[])tag.Payload;
Stream.WriteInt(load.Length);
foreach (Tag t in load)
{
SaveTag(t, true);
}
break;
case TagType.Long:
Stream.WriteLong((long)tag.Payload);
break;
case TagType.Short:
Stream.WriteShort((short)tag.Payload);
break;
case TagType.String:
Stream.WriteString((string)tag.Payload);
break;
}
}
}
private void ParseTag(Tag tag, bool IsList = false)
{
if (tag.Type != TagType.End || (byte)tag.Type == 0xff)
{
if (!IsList)
{
tag.Name = Stream.ReadString();
}
switch (tag.Type)
{
case TagType.Byte:
tag.Payload = Stream.ReadByte();
break;
case TagType.ByteArray:
int length = Stream.ReadInt();
byte[] payload = new byte[length];
for (int i = 0; i < length; ++i)
{
payload[i] = Stream.ReadByte();
}
tag.Payload = payload;
break;
case TagType.Compound:
List<Tag> pload = new List<Tag>();
while (true)
{
TagType tt = Stream.ReadTag();
if (tt == TagType.End || (byte)tt == 0xff)
{
break;
}
else
{
Tag t = new Tag();
t.Type = tt;
ParseTag(t);
pload.Add(t);
}
}
tag.Payload = pload;
break;
case TagType.Double:
tag.Payload = Stream.ReadDouble();
break;
case TagType.Float:
tag.Payload = Stream.ReadFloat();
break;
case TagType.Int:
tag.Payload = Stream.ReadInt();
break;
case TagType.List:
TagType type = Stream.ReadTag();
length = Stream.ReadInt();
Tag[] load = new Tag[length];
for (int i = 0; i < length; ++i)
{
load[i] = new Tag();
load[i].Type = type;
ParseTag(load[i], true);
}
tag.Payload = load;
break;
case TagType.Long:
tag.Payload = Stream.ReadLong();
break;
case TagType.Short:
tag.Payload = Stream.ReadShort();
break;
case TagType.String:
tag.Payload = Stream.ReadString();
break;
}
}
}
