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examples/audio: handle errors

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Updates #2287
This commit is contained in:
Hajime Hoshi 2022-09-09 16:51:14 +09:00
parent a9653d1e7a
commit 6b1502ee71
1 changed files with 14 additions and 7 deletions
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21
examples/audio/main.go
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@ -204,7 +204,9 @@ func (p *Player) update() error {
if p.audioPlayer.IsPlaying() { if p.audioPlayer.IsPlaying() {
p.current = p.audioPlayer.Current() p.current = p.audioPlayer.Current()
} }
p.seekBarIfNeeded() if err := p.seekBarIfNeeded(); err != nil {
return err
}
p.switchPlayStateIfNeeded() p.switchPlayStateIfNeeded()
p.playSEIfNeeded() p.playSEIfNeeded()
p.updateVolumeIfNeeded() p.updateVolumeIfNeeded()
@ -312,23 +314,26 @@ func (p *Player) justPressedPosition() (int, int, bool) {
return 0, 0, false return 0, 0, false
} }
func (p *Player) seekBarIfNeeded() { func (p *Player) seekBarIfNeeded() error {
// Calculate the next seeking position from the current cursor position. // Calculate the next seeking position from the current cursor position.
x, y, ok := p.justPressedPosition() x, y, ok := p.justPressedPosition()
if !ok { if !ok {
return return nil
} }
bx, by, bw, bh := playerBarRect() bx, by, bw, bh := playerBarRect()
const padding = 4 const padding = 4
if y < by-padding || by+bh+padding <= y { if y < by-padding || by+bh+padding <= y {
return return nil
} }
if x < bx || bx+bw <= x { if x < bx || bx+bw <= x {
return return nil
} }
pos := time.Duration(x-bx) * p.total / time.Duration(bw) pos := time.Duration(x-bx) * p.total / time.Duration(bw)
p.current = pos p.current = pos
p.audioPlayer.Seek(pos) if err := p.audioPlayer.Seek(pos); err != nil {
return err
}
return nil
} }
func (p *Player) draw(screen *ebiten.Image) { func (p *Player) draw(screen *ebiten.Image) {
@ -420,7 +425,9 @@ func (g *Game) Update() error {
panic("not reached") panic("not reached")
} }
g.musicPlayer.Close() if err := g.musicPlayer.Close(); err != nil {
return err
}
g.musicPlayer = nil g.musicPlayer = nil
go func() { go func() {