private void ReadTagHeader(bool readName)
{
TagsRead++;
TagName = (readName ? reader.ReadString() : null);
valueCache = null;
TagLength = 0;
atValue = false;
ListType = NbtTagType.Unknown;
switch (TagType)
{
case NbtTagType.Byte:
case NbtTagType.Short:
case NbtTagType.Int:
case NbtTagType.Long:
case NbtTagType.Float:
case NbtTagType.Double:
case NbtTagType.String:
atValue = true;
break;
case NbtTagType.IntArray:
case NbtTagType.ByteArray:
case NbtTagType.LongArray:
TagLength = reader.ReadInt32();
atValue = true;
break;
case NbtTagType.List:
// Setting state to error in case reader throws
state = NbtParseState.Error;
ListType = reader.ReadTagType();
TagLength = reader.ReadInt32();
if (TagLength < 0)
{
throw new NbtFormatException("Negative tag length given: " + TagLength);
}
state = NbtParseState.AtListBeginning;
break;
case NbtTagType.Compound:
state = NbtParseState.AtCompoundBeginning;
break;
default:
state = NbtParseState.Error;
throw new NbtFormatException("Trying to read tag of unknown type.");
}
}
private static string GetRootNameInternal([NotNull] Stream stream, bool bigEndian)
{
Debug.Assert(stream != null);
int firstByte = stream.ReadByte();
if (firstByte < 0)
{
throw new EndOfStreamException();
}
else if (firstByte != (int)NbtTagType.Compound)
{
throw new NbtFormatException("Given NBT stream does not start with a TAG_Compound");
}
var reader = new NbtBinaryReader(stream, bigEndian);
return(reader.ReadString());
}
private void LoadFromStreamInternal([NotNull] Stream stream, [CanBeNull] TagSelector tagSelector)
{
// Make sure the first byte in this file is the tag for a TAG_Compound
int firstByte = stream.ReadByte();
if (firstByte < 0)
{
throw new EndOfStreamException();
}
if (firstByte != (int)NbtTagType.Compound)
{
throw new NbtFormatException("Given NBT stream does not start with a TAG_Compound");
}
var reader = new NbtBinaryReader(stream, BigEndian)
{
Selector = tagSelector
};
var rootCompound = new NbtCompound(reader.ReadString());
rootCompound.ReadTag(reader);
RootTag = rootCompound;
}
