audio.go

package main

import (
	"fmt"

	"github.com/hajimehoshi/ebiten"
	"github.com/hajimehoshi/ebiten/audio"
	"github.com/hajimehoshi/ebiten/audio/vorbis"
	raudio "github.com/hajimehoshi/ebiten/examples/resources/audio"
	"github.com/hajimehoshi/ebiten/ebitenutil"
)

type game struct {
	audioContext *audio.Context
	players      []*audio.Player
	started      bool
}

const numPlayers int = 6

func (g *game) Update(screen *ebiten.Image) error {
	if !g.started {
		for _, p := range g.players {
			p.Play()
		}
		g.started = false
	}
	return nil
}

func (g *game) Draw(screen *ebiten.Image) {
	ebitenutil.DebugPrint(screen, fmt.Sprint(g.players[0].Current()))
}

func (g *game) Layout(outsideWidth, outsideHeight int) (screenWidth, screenHeight int) {
	return outsideWidth, outsideHeight
}

func main() {
	var g game

	var err error
	g.audioContext, err = audio.NewContext(44100)
	if err != nil {
		panic(err)
	}

	g.players = make([]*audio.Player, numPlayers)
	for pos := 0; pos < numPlayers; pos++ {
		sound, err := vorbis.Decode(g.audioContext, audio.BytesReadSeekCloser(raudio.Ragtime_ogg))
		if err != nil {
			panic(err)
		}
		g.players[pos], err = audio.NewPlayer(g.audioContext, sound)
		if err != nil {
			panic(err)
		}
	}

	if err := ebiten.RunGame(&g); err != nil {
		panic(err)
	}
}