String readStr() {
VarInt varInt = new VarInt(bytes, cursor);
if (varInt.value == 0) {
cursor += 1;
return "";
}
cursor += varInt.getSizeInBytes();
byte[] characters = new byte[(int)varInt.value];
bytes.CopyTo(cursor, characters, 0, characters.Length);
cursor += characters.Length;
return Encoding.UTF8.GetString(characters);
}
long readVarInt(int offset) {
VarInt varint = new VarInt(bytes, cursor + offset);
cursor += offset + varint.getSizeInBytes();
return varint.value;
}