Esempio n. 1
0
        public MainWindow()
        {
            currentGroupId = currentGroupName;
            InitializeComponent();
            StartTimer();
            this.backgroundMusic             = SoundProvider.Ukulele;
            this.backgroundMusic.Volume      = 0.05;
            this.backgroundMusic.MediaEnded += new EventHandler((object sender, EventArgs e) => {
                this.backgroundMusic.Position = TimeSpan.Zero;
                this.backgroundMusic.Play();
            });
            this.backgroundMusic.Play();
            t.Elapsed += T_Elapsed;

            // Create grabber.
            _grabber = new FrameGrabber <LiveCameraResult>();

            updateMode(AppMode.Participants);

            // Set up a listener for when the client receives a new frame.
            _grabber.NewFrameProvided += (s, e) =>
            {
                if (_mode == AppMode.EmotionsWithClientFaceDetect)
                {
                    // Local face detection.
                    var rects = _localFaceDetector.DetectMultiScale(e.Frame.Image);
                    // Attach faces to frame.
                    e.Frame.UserData = rects;
                }

                // The callback may occur on a different thread, so we must use the
                // MainWindow.Dispatcher when manipulating the UI.
                this.Dispatcher.BeginInvoke((Action)(() =>
                {
                    // Display the image in the left pane.
                    LeftImage.Source = e.Frame.Image.ToBitmapSource();


                    // If we're fusing client-side face detection with remote analysis, show the
                    // new frame now with the most recent analysis available.
                    if (_fuseClientRemoteResults)
                    {
                        RightImage.Source = VisualizeResult(e.Frame);
                    }
                }));

                if (DateTime.Now - currentTimeTaskStart > currentTimerTask)
                {
                    if (gameState == GameState.Explain)
                    {
                        roundStart = DateTime.Now;
                        nextRound();
                    }
                    else if (gameState == GameState.RoundBegin)
                    {
                        currentTimerTask     = TimeSpan.FromSeconds(15);
                        currentTimeTaskStart = DateTime.Now;
                        gameState            = GameState.Game;
                        roundStart           = DateTime.Now;
                    }
                    else if (gameState == GameState.Game)
                    {
                        currentTimerTask     = TimeSpan.FromSeconds(6);
                        currentTimeTaskStart = DateTime.Now;
                        gameState            = GameState.RoundEnd;
                        scoringSystem.AddRoundToGameScore();
                    }
                    else if (gameState == GameState.RoundEnd)
                    {
                        if (roundNumber == NumOfRounds)
                        {
                            this.sound = SoundProvider.TheWinner;
                            this.sound.Play();
                            currentTimerTask = TimeSpan.FromSeconds(3);
                            gameState        = GameState.GameEnd;
                            this.Dispatcher.BeginInvoke((Action)(() =>
                            {
                                StartEndImages();

                                button.Visibility = Visibility.Visible;
                            }));
                        }
                        else
                        {
                            nextRound();
                            roundStart = DateTime.Now;
                        }
                    }
                }
            };

            // Set up a listener for when the client receives a new result from an API call.
            _grabber.NewResultAvailable += (s, e) =>
            {
                this.Dispatcher.BeginInvoke((Action)(() =>
                {
                    if (e.TimedOut)
                    {
                        MessageArea.Text = "API call timed out.";
                    }
                    else if (e.Exception != null)
                    {
                        string apiName = "";
                        string message = e.Exception.Message;
                        var faceEx = e.Exception as FaceAPIException;
                        var emotionEx = e.Exception as Microsoft.ProjectOxford.Common.ClientException;
                        var visionEx = e.Exception as Microsoft.ProjectOxford.Vision.ClientException;
                        if (faceEx != null)
                        {
                            apiName = "Face";
                            message = faceEx.ErrorMessage;
                        }
                        else if (emotionEx != null)
                        {
                            apiName = "Emotion";
                            message = emotionEx.Error.Message;
                        }
                        else if (visionEx != null)
                        {
                            apiName = "Computer Vision";
                            message = visionEx.Error.Message;
                        }
                        MessageArea.Text = string.Format("{0} API call failed on frame {1}. Exception: {2}", apiName, e.Frame.Metadata.Index, message);
                    }
                    else
                    {
                        _latestResultsToDisplay = e.Analysis;

                        // Display the image and visualization in the right pane.
                        if (!_fuseClientRemoteResults)
                        {
                            RightImage.Source = VisualizeResult(e.Frame);
                        }
                        if (gameState == GameState.Game || gameState == GameState.RoundBegin)
                        {
                            bool drawIndicator = false;
                            if (gameState == GameState.Game)
                            {
                                drawIndicator = true;
                            }
                            RightImage.Source = VisualizeTimer(drawIndicator);
                        }
                    }
                }));
            };

            // Create local face detector.
            _localFaceDetector.Load("Data/haarcascade_frontalface_alt2.xml");
        }