add phrase uuids; implement comparisons

crates/tek_sequencer/src/arranger.rs

@@ -470,14 +470,17 @@ impl Scene {
     }
     /// Returns true if all phrases in the scene are currently playing
     pub fn is_playing <E: Engine> (&self, tracks: &[ArrangementTrack<E>]) -> bool {
-        self.clips.iter().enumerate()
-            .all(|(track_index, clip)|match clip {
-                Some(i) => tracks
-                    .get(track_index)
-                    .map(|track|track.player.phrase == Some(*i))
-                    .unwrap_or(false),
-                None => true
-            })
+        self.clips.iter().enumerate().all(|(track_index, clip)|match clip {
+            Some(clip) => tracks
+                .get(track_index)
+                .map(|track|if let Some(phrase) = &track.player.phrase {
+                    *phrase.read().unwrap() == *clip.read().unwrap()
+                } else {
+                    false
+                })
+                .unwrap_or(false),
+            None => true
+        })
     }
     pub fn ppqs <E: Engine> (tracks: &[ArrangementTrack<E>], scenes: &[Self]) -> Vec<(usize, usize)> {
         let mut total = 0;