private List <string> getTextToNextPrompt(PeekingStreamReader reader)
{
string line = reader.PeekReadLine();
string command;
var list = new List <string>();
while (!IsPrompt(line, out command))
{
list.Add(line);
line = reader.PeekReadLine();
}
return(list);
}
internal async Task Start(IAutomapCanvas canvas, AutomapSettings settings)
{
if (Running)
{
Stop();
}
m_canvas = canvas;
m_settings = settings;
m_firstRoom = true;
Debug.Assert(m_settings.AssumeRoomsWithSameNameAreSameRoom || m_settings.VerboseTranscript, "Must assume rooms with same name are same room unless transcript is verbose.");
Status = "Automapping has started.";
try
{
using (var stream = File.Open(m_settings.FileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
using (var reader = new PeekingStreamReader(stream))
using (m_tokenSource = new CancellationTokenSource())
{
var lastline = "";
if (m_settings.ContinueTranscript)
{
while (!reader.EndOfStream)
{
lastline = await reader.ReadLineAsync();
}
}
// keep track of lines we read between here and the next prompt
var linesBetweenPrompts = new List <string>();
Status = "Automapping is processing the transcript.";
var promptLine = string.Empty;
var line = string.Empty;
var atFileEnd = false;
// loop until cancelled
while (true)
{
if (m_settings.ContinueTranscript)
{
line = lastline;
m_settings.ContinueTranscript = false;
}
else
{
// ...read a line of text
try
{
line = await WaitForNewLine(reader, m_tokenSource.Token);
atFileEnd = reader.EndOfStream; // store this now so that it's still valid when we use it below
}
catch (TaskCanceledException)
{
break;
}
}
//Trace("[" + line + "]");
string command;
if (IsPrompt(line, out command))
{
// this is a prompt line
// let's process everything leading up to it since the last prompt, but not necessarily this new prompt itself
await ProcessTranscriptText(linesBetweenPrompts);
// we've now dealt with all lines to this point
linesBetweenPrompts.Clear();
// handle the case where we're at the end of the file, waiting for user input
if (atFileEnd)
{
try
{
// we've already read the prompt, now just read the command when the player enters it
command = (await WaitForNewLine(reader, m_tokenSource.Token)).Trim();
}
catch (TaskCanceledException)
{
break;
}
}
// var nextParagraph = getTextToNextPrompt(reader);
// process the next command
ProcessPromptCommand(command);
// if (command.ToUpper().Equals("EXITS"))
// {
// // parse the exits command.
// DeduceExitsFromDescription(m_lastKnownRoom, String.Join(" ", nextParagraph));
// }
Trace("{0}: {1}{2}", FormatTranscriptLineForDisplay(line), m_lastMoveDirection != null ? "GO " : string.Empty, m_lastMoveDirection != null ? m_lastMoveDirection.Value.ToString().ToUpperInvariant() : string.Empty);
}
else
{
// this line isn't a prompt;
// hang onto it for now in case we meet a prompt shortly.
linesBetweenPrompts.Add(line);
}
}
}
}
catch (IOException ex)
{
// couldn't read from the file
Trace("Automap: Error reading line in file.\nError message: " + ex.Message);
MessageBox.Show("Error opening transcript file:\n" + ex.Message + "\n\nAutomapping halted.", "File Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
catch (UnauthorizedAccessException)
{
MessageBox.Show("Could not gain access to the transcript file. Your interpreter may be restricting access to it. Try again in a few minutes " +
"or with scripting off in your interpreter.\n\nAutomapping halted.", "Access Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
Trace("Automap: Gentle thread exit.");
Status = "Automapping has completed.";
}
