prevent note preview while playing

emprcl · Aug 9, 2024 · 05ef86e · 05ef86e
1 parent 117188d
commit 05ef86e
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Showing 4 changed files with 11 additions and 1 deletion.
diff --git a/sequencer/pattern.go b/sequencer/pattern.go
@@ -123,6 +123,7 @@ func (s *sequencer) Load(pattern int) {
 
 		s.tracks = append(s.tracks, &track{
 			midi:                  s.midi,
+			seq:                   s,
 			steps:                 []*step{},
 			chord:                 t.Chord,
 			length:                t.Length,

diff --git a/sequencer/sequencer.go b/sequencer/sequencer.go
@@ -126,6 +126,7 @@ func (s *sequencer) AddTrack() {
 	channel := len(s.tracks)
 	track := &track{
 		midi:                  s.midi,
+		seq:                   s,
 		pulse:                 pulse,
 		chord:                 []uint8{defaultNote},
 		length:                pulsesPerStep,

diff --git a/sequencer/step.go b/sequencer/step.go
@@ -182,6 +182,9 @@ func (s *step) SetChord(chord []uint8) {
 		if note < minChordNote || note > maxChordNote {
 			return
 		}
+		if s.track.seq.isPlaying {
+			continue
+		}
 		go func(note uint8) {
 			s.midi.NoteOn(s.track.device, s.track.channel, note, s.Velocity())
 			time.Sleep(time.Second)

diff --git a/sequencer/track.go b/sequencer/track.go
@@ -24,7 +24,9 @@ type Track interface {
 }
 
 type track struct {
-	midi  midi.Midi
+	midi midi.Midi
+	seq  *sequencer
+
 	steps []*step
 
 	// The pulse defines the current position of the playhead in the track.
@@ -214,6 +216,9 @@ func (t *track) SetChord(chord []uint8) {
 		if note < minChordNote || note > maxChordNote {
 			return
 		}
+		if t.seq.isPlaying {
+			continue
+		}
 		go func(note uint8) {
 			t.midi.NoteOn(t.device, t.channel, note, t.Velocity())
 			time.Sleep(time.Second)