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audio.go
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audio.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 (
defaultMusicVolume = 0.25
defaultSFXVolume = 0.75
)
var (
ctx = audio.NewContext(44100)
//go:embed sfx/fall.wav
fallBytes []byte
fallPlayer *audio.Player
//go:embed sfx/footsteps.wav
footstepsBytes []byte
footstepsPlayer *audio.Player
//go:embed sfx/scan.wav
scanBytes []byte
scanPlayer *audio.Player
)
func init() {
wavReader, err := wav.Decode(ctx, bytes.NewReader(fallBytes))
if err != nil {
log.Fatal(err)
}
fallPlayer, err = ctx.NewPlayer(wavReader)
if err != nil {
log.Fatal(err)
}
fallPlayer.SetVolume(defaultSFXVolume)
wavReader, err = wav.Decode(ctx, bytes.NewReader(footstepsBytes))
if err != nil {
log.Fatal(err)
}
infiniteReader := audio.NewInfiniteLoop(wavReader, wavReader.Length())
footstepsPlayer, err = ctx.NewPlayer(infiniteReader)
if err != nil {
log.Fatal(err)
}
footstepsPlayer.SetVolume(defaultSFXVolume)
wavReader, err = wav.Decode(ctx, bytes.NewReader(scanBytes))
if err != nil {
log.Fatal(err)
}
scanPlayer, err = ctx.NewPlayer(wavReader)
if err != nil {
log.Fatal(err)
}
scanPlayer.SetVolume(defaultSFXVolume)
}
func PlayFall() {
fallPlayer.Rewind()
fallPlayer.Play()
}
func PlayFootsteps() {
if !footstepsPlayer.IsPlaying() {
footstepsPlayer.Rewind()
footstepsPlayer.Play()
}
}
func StopFootsteps() {
footstepsPlayer.Pause()
}
func PlayScan() {
scanPlayer.Rewind()
scanPlayer.Play()
}