fix terminal render

main.go

@@ -12,28 +12,34 @@ import (
 var (
 	count time.Duration = 15 * time.Second
 	str   string        = ""
-	p *widgets.Paragraph
+	p     *widgets.Paragraph
 )
 
 const (
 	playSound = true
-	timer = 15*time.Second
+	timer     = 15 * time.Second
 )
 
-func updateScreen() {
+func prepareScreen() {
 	if err := ui.Init(); err != nil {
 		log.Fatalf("failed to initialize termui: %v", err)
 	}
-	defer ui.Close()
+	//defer ui.Close()
-
+	p = widgets.NewParagraph()
+	p.Text = str
+	p.SetRect(0, 0, 25, 10)
+	ui.Render(p)
+}
+
+func updateScreen() {
 	p.Text = str
-	p.SetRect(0, 0, 25, 12)
 	ui.Render(p)
 }
 
 func main() {
-	p = widgets.NewParagraph()
+	prepareScreen()
 	rofl := roflcopter.NewRoflcopter(timer, &str, playSound, updateScreen)
 	rofl.Start()
-	time.Sleep(timer)
+	time.Sleep(timer + 500*time.Millisecond)
+	ui.Close()
 }

roflcopter/roflcopter.go

@@ -18,7 +18,7 @@ var swah []byte
 var (
 	work     bool = true
 	duration time.Duration
-	wg sync.WaitGroup
+	wg       sync.WaitGroup
 )
 
 const (
@@ -44,14 +44,6 @@ func NewRoflcopter(amount time.Duration, outStr *string, out bool, funcrunner fu
 	}
 }
 
-func (b *Roflcopter) timecounter(step time.Duration) {
-	for b.count > 0 {
-		b.count -= step
-		time.Sleep(step)
-	}
-	work = false
-}
-
 func (b *Roflcopter) Start() {
 	*b.str = frame1 + b.count.String()
 	work = b.work
@@ -59,9 +51,18 @@ func (b *Roflcopter) Start() {
 	if b.output {
 		go b.player()
 	}
-	go b.timecounter(1 * time.Second)
+	go b.timecounter(500 * time.Millisecond)
-	go b.frameChanger(120 * time.Millisecond)
+	go b.frameChanger(125 * time.Millisecond)
 }
+
+func (b *Roflcopter) timecounter(step time.Duration) {
+	for b.count >= 0 {
+		b.count -= step
+		time.Sleep(step)
+	}
+	work = false
+}
+
 func (b *Roflcopter) player() {
 	b.sound()
 	wg.Wait()
@@ -69,31 +70,31 @@ func (b *Roflcopter) player() {
 }
 
 func (b *Roflcopter) frameChanger(delay time.Duration) {
-	b.runner()
 	nextframe := 2
 
 	for work {
 		switch nextframe {
 		case 1:
 			{
-				*b.str = frame1 + b.count.String()
+				*b.str = frame1 + "Ends in " + b.count.String()
 				time.Sleep(delay)
 				nextframe = 2
 			}
 
 		case 2:
 			{
-				*b.str = frame2 + b.count.String()
+				*b.str = frame2 + "Ends in " + b.count.String()
 				time.Sleep(delay)
 				nextframe = 1
 			}
 		}
+		b.runner()
 	}
 }
 
 func (b *Roflcopter) sound() {
 	wg.Add(1)
-	t := 1*time.Second + 390*time.Millisecond
+	t := 1*time.Second + 380*time.Millisecond
 	streamer, format, err := mp3.Decode(io.NopCloser(bytes.NewReader(swah)))
 	if err != nil {
 		log.Fatal(err)