public static EnumFile Decode(byte[] data)
{
var file = new EnumFile();
using var dataStream = new MemoryStream(data);
using var dataReader = new BinaryReader(dataStream);
var ended = false;
while (dataStream.Position < dataStream.Length && !ended)
{
var opcode = (Opcode)dataReader.ReadByte();
switch (opcode)
{
case Opcode.CharKeyType:
file.KeyType = ScriptVarType.FromValue(dataReader.ReadAwkwardChar());
break;
case Opcode.CharValueType:
file.ValueType = ScriptVarType.FromValue(dataReader.ReadAwkwardChar());
break;
case Opcode.DefaultString:
file.DefaultString = dataReader.ReadNullTerminatedString();
break;
case Opcode.DefaultInteger:
file.DefaultInteger = dataReader.ReadInt32BigEndian();
break;
case Opcode.StringDataDictionary:
case Opcode.IntegerDataDictionary:
var count = dataReader.ReadUInt16BigEndian();
file.Values = new Dictionary <int, object>(count);
for (var i = 0; i < count; i++)
{
var key = dataReader.ReadInt32BigEndian();
object value;
if (opcode == Opcode.StringDataDictionary)
{
value = dataReader.ReadNullTerminatedString();
}
else
{
value = dataReader.ReadInt32BigEndian();
}
file.Values[key] = value;
}
break;
case Opcode.StringDataArray:
case Opcode.IntegerDataArray:
var max = dataReader.ReadUInt16BigEndian();
count = dataReader.ReadUInt16BigEndian();
file.Values = new Dictionary <int, object>(count);
for (var i = 0; i < count; i++)
{
var key = dataReader.ReadUInt16BigEndian();
if (opcode == Opcode.StringDataArray)
{
file.Values[key] = dataReader.ReadNullTerminatedString();
}
else
{
file.Values[key] = dataReader.ReadInt32BigEndian();
}
}
break;
case Opcode.ByteKeyType:
file.KeyType = ScriptVarType.FromValue(dataReader.ReadAwkwardShort());
break;
case Opcode.ByteValueType:
file.ValueType = ScriptVarType.FromValue(dataReader.ReadAwkwardShort());
break;
case Opcode.End:
ended = true;
break;
default:
throw new DecodeException($"Invalid enum opcode \"{opcode}\".");
}
}
if (file.KeyType == null)
{
throw new DecodeException("Enum data does not contain a key type.");
}
if (file.ValueType == null)
{
throw new DecodeException("Enum data does not contain a value type.");
}
if (file.Values == null)
{
throw new DecodeException("Enum does not contain any values.");
}
if (dataStream.Position < dataStream.Length)
{
throw new DecodeException($"Input data not fully consumed while decoding enum file. {dataStream.Length - dataStream.Position} bytes remain.");
}
return(file);
}
/// <summary>
/// Set variable as ScriptVarType.Undefined.
/// </summary>
public void SetUndefined()
{
Type = ScriptVarType.Undefined;
}
