Angle update

app/src/main/java/com/example/jnicpp/bowling/CameraViewModel.kt

@@ -32,6 +32,21 @@ class CameraViewModel : ViewModel() {
     private val _recordingState = MutableStateFlow<RecordingState>(RecordingState.Idle)
     val recordingState: StateFlow<RecordingState> = _recordingState.asStateFlow()
 
+    // Whether live pose detection/overlay is on. Only meant to change while
+    // recordingState is Idle -- the UI disables the toggle otherwise (see
+    // BowlingCameraActivity#renderRecordingState) since the recording
+    // pipeline picks its pose mode once at start.
+    private val _poseEnabled = MutableStateFlow(false)
+    val poseEnabled: StateFlow<Boolean> = _poseEnabled.asStateFlow()
+
+    // Latest per-frame joint angles, for the overlay's angle-label text now
+    // and for frame-by-frame swing analysis/logging later. Null whenever
+    // there's no current pose result to derive them from (pose off, no
+    // frame processed yet, or a frame with no landmarks that met the
+    // confidence bar -- see PoseAngleCalculator).
+    private val _poseAngles = MutableStateFlow<PoseAngles?>(null)
+    val poseAngles: StateFlow<PoseAngles?> = _poseAngles.asStateFlow()
+
     private val _permissionsGranted = MutableStateFlow(false)
     val permissionsGranted: StateFlow<Boolean> = _permissionsGranted.asStateFlow()
 
@@ -47,6 +62,15 @@ class CameraViewModel : ViewModel() {
         _permissionsGranted.value = granted
     }
 
+    fun onPoseToggled(enabled: Boolean) {
+        _poseEnabled.value = enabled
+        if (!enabled) _poseAngles.value = null
+    }
+
+    fun onPoseAnglesUpdated(angles: PoseAngles) {
+        _poseAngles.value = angles
+    }
+
     fun onRecordingStarting() {
         _recordingState.value = RecordingState.Starting
     }