feat: integrate tangential force HUD

src-tauri/src/serial_core/model.rs

@@ -13,6 +13,7 @@ pub struct HudPacket {
     pub panels: Vec<HudSignalPanel>,
     pub summary: HudSummary,
     pub pressure_matrix: Option<Vec<f32>>,
+    pub spatial_force: Option<HudSpatialForce>,
 }
 
 #[derive(serde::Serialize, Clone)]
@@ -74,6 +75,14 @@ pub struct HudSignalIcon {
     pub tone: HudTone,
 }
 
+#[derive(serde::Serialize, Clone)]
+#[serde(rename_all = "camelCase")]
+pub struct HudSpatialForce {
+    pub angle_deg: f32,
+    pub magnitude: f32,
+    pub confidence: f32,
+}
+
 struct HudPanelUpdate {
     source_id: String,
     values: Vec<f32>,
@@ -89,6 +98,7 @@ pub struct HudChartState {
     order: Vec<String>,
     summary_points: Vec<f32>,
     pressure_matrix: Option<Vec<f32>>,
+    spatial_force: Option<HudSpatialForce>,
     last_frame_seen: Option<Instant>,
 }
 
@@ -99,6 +109,7 @@ impl HudChartState {
             order: Vec::new(),
             summary_points: Vec::new(),
             pressure_matrix: None,
+            spatial_force: None,
             last_frame_seen: None,
         }
     }
@@ -115,6 +126,10 @@ impl HudChartState {
         self.pressure_matrix = Some(values.iter().map(|value| *value as f32).collect());
     }
 
+    pub fn record_spatial_force(&mut self, spatial_force: Option<HudSpatialForce>) {
+        self.spatial_force = spatial_force;
+    }
+
     pub fn apply_frame(&mut self, frame: &TestFrame, decoded_values: Option<&[i32]>) -> HudPacket {
         let now = Instant::now();
         self.last_frame_seen = Some(now);
@@ -130,9 +145,15 @@ impl HudChartState {
     pub fn prune_stale(&mut self) -> Option<HudPacket> {
         let before = self.panels.len();
         let summary_points_before = self.summary_points.len();
+        let had_pressure_matrix = self.pressure_matrix.is_some();
+        let had_spatial_force = self.spatial_force.is_some();
         self.prune_stale_at(Instant::now());
 
-        if before == self.panels.len() && summary_points_before == self.summary_points.len() {
+        if before == self.panels.len()
+            && summary_points_before == self.summary_points.len()
+            && had_pressure_matrix == self.pressure_matrix.is_some()
+            && had_spatial_force == self.spatial_force.is_some()
+        {
             return None;
         }
 
@@ -187,6 +208,7 @@ impl HudChartState {
         if summary_stale {
             self.summary_points.clear();
             self.pressure_matrix = None;
+            self.spatial_force = None;
             self.last_frame_seen = None;
         }
     }
@@ -205,6 +227,7 @@ impl HudChartState {
             panels,
             summary: build_summary(&self.summary_points),
             pressure_matrix: self.pressure_matrix.clone(),
+            spatial_force: self.spatial_force.clone(),
         }
     }