/
sounds.go
174 lines (145 loc) · 3.56 KB
/
sounds.go
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package assets
import (
"bytes"
_ "embed"
"log"
"github.com/hajimehoshi/ebiten/v2/audio"
"github.com/hajimehoshi/ebiten/v2/audio/wav"
)
const (
defaultSFXVolume = 0.2
defaultGameMusicVolume = 0.4
defaultMainMenuVolume = 0.8
)
var (
ctx = audio.NewContext(44100)
//go:embed sound/mainmenu.wav
mainmenuMusicBytes []byte
mainmenuAudioPlayer *audio.Player
//go:embed sound/gameover.wav
gameoverMusicBytes []byte
gameoverAudioPlayer *audio.Player
//go:embed sound/ingame.wav
ingameMusicBytes []byte
ingameAudioPlayer *audio.Player
//go:embed sound/hit.wav
hitSoundBytes []byte
hitAudioPlayer *audio.Player
//go:embed sound/heart.wav
heartSoundBytes []byte
heartAudioPlayer *audio.Player
defaultSFXManager = &sfxManagerImpl{}
noopSFXManager = &noopSFXManagerImpl{}
)
func init() {
var err error
reader, err := wav.Decode(ctx, bytes.NewReader(hitSoundBytes))
if err != nil {
log.Fatal(err)
}
hitAudioPlayer, err = ctx.NewPlayer(reader)
if err != nil {
log.Fatal(err)
}
hitAudioPlayer.SetVolume(defaultSFXVolume)
reader, err = wav.Decode(ctx, bytes.NewReader(heartSoundBytes))
if err != nil {
log.Fatal(err)
}
heartAudioPlayer, err = ctx.NewPlayer(reader)
if err != nil {
log.Fatal(err)
}
heartAudioPlayer.SetVolume(defaultSFXVolume)
reader, err = wav.Decode(ctx, bytes.NewReader(ingameMusicBytes))
if err != nil {
log.Fatal(err)
}
infiniteReader := audio.NewInfiniteLoop(reader, reader.Length())
ingameAudioPlayer, err = ctx.NewPlayer(infiniteReader)
if err != nil {
log.Fatal(err)
}
ingameAudioPlayer.SetVolume(defaultGameMusicVolume)
reader, err = wav.Decode(ctx, bytes.NewReader(mainmenuMusicBytes))
if err != nil {
log.Fatal(err)
}
infiniteReader = audio.NewInfiniteLoopWithIntro(reader, reader.Length()/5, reader.Length())
mainmenuAudioPlayer, err = ctx.NewPlayer(infiniteReader)
if err != nil {
log.Fatal(err)
}
mainmenuAudioPlayer.SetVolume(defaultMainMenuVolume)
reader, err = wav.Decode(ctx, bytes.NewReader(gameoverMusicBytes))
if err != nil {
log.Fatal(err)
}
infiniteReader = audio.NewInfiniteLoop(reader, reader.Length())
gameoverAudioPlayer, err = ctx.NewPlayer(infiniteReader)
if err != nil {
log.Fatal(err)
}
gameoverAudioPlayer.SetVolume(defaultGameMusicVolume)
}
type SFXManager interface {
PlayHitSound()
PlayHeartSound()
}
type noopSFXManagerImpl struct{}
func (n *noopSFXManagerImpl) PlayHitSound() {}
func (n *noopSFXManagerImpl) PlayHeartSound() {}
func NoopSFXManager() SFXManager {
return noopSFXManager
}
type sfxManagerImpl struct{}
func (s *sfxManagerImpl) PlayHitSound() {
hitAudioPlayer.Rewind()
hitAudioPlayer.Play()
}
func (s *sfxManagerImpl) PlayHeartSound() {
heartAudioPlayer.Rewind()
heartAudioPlayer.Play()
}
func DefaultSFXManager() SFXManager {
return defaultSFXManager
}
// Global music options
func ReplayInGameMusic() {
ingameAudioPlayer.Rewind()
if !ingameAudioPlayer.IsPlaying() {
ingameAudioPlayer.Play()
}
}
func ResumeInGameMusic() {
if !ingameAudioPlayer.IsPlaying() {
ingameAudioPlayer.Play()
}
}
func StopInGameMusic() {
if ingameAudioPlayer.IsPlaying() {
ingameAudioPlayer.Pause()
}
}
func PlayGameoverMusic() {
if !gameoverAudioPlayer.IsPlaying() {
gameoverAudioPlayer.Rewind()
gameoverAudioPlayer.Play()
}
}
func StopGameoverMusic() {
if gameoverAudioPlayer.IsPlaying() {
gameoverAudioPlayer.Pause()
}
}
func PlayMainmenuMusic() {
if !mainmenuAudioPlayer.IsPlaying() {
mainmenuAudioPlayer.Rewind()
mainmenuAudioPlayer.Play()
}
}
func StopMainmenuMusic() {
if mainmenuAudioPlayer.IsPlaying() {
mainmenuAudioPlayer.Pause()
}
}