From d243957ab1f7f7c38622ecd35e4465a81efc4727 Mon Sep 17 00:00:00 2001
From: Hajime Hoshi <hajimehoshi@gmail.com>
Date: Fri, 28 Sep 2018 01:52:30 +0900
Subject: [PATCH] examples/audioinfiniteloop: Refactoring: Remove magic numbers

---
 examples/audioinfiniteloop/main.go | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/examples/audioinfiniteloop/main.go b/examples/audioinfiniteloop/main.go
index 2c6a93d3d..c08169772 100644
--- a/examples/audioinfiniteloop/main.go
+++ b/examples/audioinfiniteloop/main.go
@@ -32,6 +32,9 @@ const (
 	screenWidth  = 320
 	screenHeight = 240
 	sampleRate   = 44100
+
+	introLengthInSecond = 5
+	loopLengthInSecond  = 4
 )
 
 var audioContext *audio.Context
@@ -57,7 +60,7 @@ func update(screen *ebiten.Image) error {
 
 		// Create an infinite loop stream from the decoded bytes.
 		// s is still an io.ReadCloser and io.Seeker.
-		s := audio.NewInfiniteLoopWithIntro(oggS, 5*4*sampleRate, 4*4*sampleRate)
+		s := audio.NewInfiniteLoopWithIntro(oggS, introLengthInSecond*4*sampleRate, loopLengthInSecond*4*sampleRate)
 
 		player, err = audio.NewPlayer(audioContext, s)
 		if err != nil {
@@ -78,9 +81,9 @@ func update(screen *ebiten.Image) error {
 	}
 	msg := fmt.Sprintf(`FPS: %0.2f
 This is an example using audio.NewInfiniteLoop.
-Intro:   0[s] - 5[s]
-Loop:    5[s] - 9[s]
-Current: %0.2f[s]`, ebiten.CurrentFPS(), float64(pos)/float64(time.Second))
+Intro:   0[s] - %[2]d[s]
+Loop:    %[2]d[s] - %[3]d[s]
+Current: %0.2[4]f[s]`, ebiten.CurrentFPS(), introLengthInSecond, introLengthInSecond+loopLengthInSecond, float64(pos)/float64(time.Second))
 	ebitenutil.DebugPrint(screen, msg)
 	return nil
 }