nice

main.go

@@ -28,7 +28,8 @@ type Animation struct {
 	stroke   int
 	image    []image.Image
 	updown   int
-	msg      chan mqtt.Message
+	mqmsg    chan mqtt.Message
+	msg      string
 }
 
 var (
@@ -156,7 +157,7 @@ func NewAnimation(sz image.Point, mqMessages chan mqtt.Message) *Animation {
 		stroke: 8,
 		image:  images,
 		updown: 0,
-		msg:    mqMessages,
+		mqmsg:  mqMessages,
 	}
 }
 
@@ -171,10 +172,11 @@ func (a *Animation) Next() (image.Image, <-chan time.Time, error) {
 	}
 	a.ctx.SetColor(color.White)
 	select {
-	case msg := <-a.msg:
-		a.ctx.DrawString(string(msg.Payload()), 5, 9)
+	case msg := <-a.mqmsg:
+		a.msg = string(msg.Payload())
 	default:
 	}
+	a.ctx.DrawString(a.msg, 5, 9)
 	return a.ctx.Image(), time.After(time.Millisecond * 50), nil
 }