discard data during pause

src/main.rs

@@ -316,20 +316,20 @@ async fn main() {
         // keep track of the delta time since last plot
         plot_delta_time += frame_delta_time;
 
-        if !pause {
+        match rx.try_recv() {
-            match rx.try_recv() {
+            Ok(x) => {
-                Ok(x) => {
+                if !pause {
                     graph.place_next(plot_delta_time, 0., x as f32);
                     plot_delta_time = 0.;
                 }
-                Err(x) => match x {
-                    mpsc::TryRecvError::Empty => {}
-                    mpsc::TryRecvError::Disconnected => {
-                        eprintln!("Sender hung-up.");
-                        return;
-                    }
-                },
             }
+            Err(x) => match x {
+                mpsc::TryRecvError::Empty => {}
+                mpsc::TryRecvError::Disconnected => {
+                    eprintln!("Sender hung-up.");
+                    return;
+                }
+            },
         }
 
         graph.draw();