private static TokenText ParseSpeakerText(IReadOnlyList <byte> bytes, FormatVersion version, Encoding encoding)
{
var line = new TokenText();
int bufferIndex = 0;
while (bufferIndex < bytes.Count)
{
if (!TryParseTokens(bytes, ref bufferIndex, out var tokens, version, encoding))
{
break;
}
line.Tokens.AddRange(tokens);
}
return(line);
}
private static void ParsePages(IDialog message, IReadOnlyList <int> lineStartAddresses, IReadOnlyList <byte> buffer, FormatVersion version, Encoding encoding)
{
if (lineStartAddresses.Count == 0 || buffer.Count == 0)
{
return;
}
// The addresses are not relative to the start of the buffer
// so we rebase the addresses first
int lineStartAddressBase = lineStartAddresses[0];
int[] rebasedLineStartAddresses = new int[lineStartAddresses.Count];
for (int i = 0; i < lineStartAddresses.Count; i++)
{
rebasedLineStartAddresses[i] = lineStartAddresses[i] - lineStartAddressBase;
}
for (int lineIndex = 0; lineIndex < rebasedLineStartAddresses.Length; lineIndex++)
{
// Initialize a new line
var line = new TokenText();
// Now that the line start addresses have been rebased, we can use them as indices into the buffer
int bufferIndex = rebasedLineStartAddresses[lineIndex];
// Calculate the line end index
int lineEndIndex = (lineIndex + 1) != rebasedLineStartAddresses.Length ? rebasedLineStartAddresses[lineIndex + 1] : buffer.Count;
// Loop over the buffer until we find a 0 byte or have reached the end index
while (bufferIndex < lineEndIndex)
{
if (!TryParseTokens(buffer, ref bufferIndex, out var tokens, version, encoding))
{
break;
}
line.Tokens.AddRange(tokens);
}
// Add line to list of lines
message.Lines.Add(line);
}
}
// TODO: maybe move the parsing functions to a seperate class
/// <summary>
/// Creates a <see cref="MessageScript"/> from a <see cref="MessageScriptBinary"/>.
/// </summary>
public static MessageScript FromBinary(MessageScriptBinary binary, FormatVersion version = FormatVersion.Detect, Encoding encoding = null)
{
if (binary == null)
{
throw new ArgumentNullException(nameof(binary));
}
if (binary.DialogHeaders == null)
{
throw new ArgumentNullException(nameof(binary));
}
// Create new script instance & set user id, format version
var instance = new MessageScript
{
Id = binary.Header.UserId,
FormatVersion = version == FormatVersion.Detect ? ( FormatVersion)binary.FormatVersion : version,
Encoding = encoding
};
// Convert the binary messages to their counterpart
var labelOccurences = new Dictionary <string, int>();
foreach (var messageHeader in binary.DialogHeaders)
{
IDialog message;
IReadOnlyList <int> pageStartAddresses;
IReadOnlyList <byte> buffer;
int pageCount;
switch (messageHeader.Kind)
{
case BinaryDialogKind.Message:
{
var binaryMessage = (BinaryMessageDialog)messageHeader.Data.Value;
pageStartAddresses = binaryMessage.PageStartAddresses;
buffer = binaryMessage.TextBuffer;
pageCount = binaryMessage.PageCount;
// check for duplicates
var name = ResolveName(labelOccurences, binaryMessage.Name);
if (binaryMessage.SpeakerId == 0xFFFF)
{
message = new MessageDialog(name);
}
else if ((binaryMessage.SpeakerId & 0x8000) == 0x8000)
{
Trace.WriteLine(binaryMessage.SpeakerId.ToString("X4"));
message = new MessageDialog(name, new VariableSpeaker(binaryMessage.SpeakerId & 0x0FFF));
}
else
{
if (binary.SpeakerTableHeader.SpeakerNameArray.Value == null)
{
throw new InvalidDataException("Speaker name array is null while being referenced");
}
TokenText speakerName = null;
if (binaryMessage.SpeakerId < binary.SpeakerTableHeader.SpeakerCount)
{
speakerName = ParseSpeakerText(binary.SpeakerTableHeader.SpeakerNameArray
.Value[binaryMessage.SpeakerId].Value, instance.FormatVersion, encoding == null ? Encoding.ASCII : encoding);
}
message = new MessageDialog(name, new NamedSpeaker(speakerName));
}
}
break;
case BinaryDialogKind.Selection:
{
var binaryMessage = ( BinarySelectionDialog )messageHeader.Data.Value;
pageStartAddresses = binaryMessage.OptionStartAddresses;
buffer = binaryMessage.TextBuffer;
pageCount = binaryMessage.OptionCount;
var name = ResolveName(labelOccurences, binaryMessage.Name);
message = new SelectionDialog(name, (SelectionDialogPattern)binaryMessage.Pattern);
}
break;
default:
throw new InvalidDataException("Unknown message type");
}
if (pageCount != 0)
{
// Parse the line data
ParsePages(message, pageStartAddresses, buffer, instance.FormatVersion, encoding == null ? Encoding.ASCII : encoding);
}
// Add it to the message list
instance.Dialogs.Add(message);
}
return(instance);
}
public NamedSpeaker(string name)
{
Name = new TokenTextBuilder()
.AddString(name)
.Build();
}
/// <summary>
/// Constructs a new speaker.
/// </summary>
/// <param name="name">The name of the speaker.</param>
public NamedSpeaker(TokenText name)
{
Name = name;
}