mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-12-26 11:48:55 +01:00
81 lines
1.9 KiB
Go
81 lines
1.9 KiB
Go
// Copyright 2016 Hajime Hoshi
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package main
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import (
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"fmt"
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"log"
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"github.com/hajimehoshi/ebiten"
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"github.com/hajimehoshi/ebiten/ebitenutil"
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"github.com/hajimehoshi/ebiten/exp/audio"
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)
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const (
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screenWidth = 320
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screenHeight = 240
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)
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var (
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audioContext *audio.Context
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audioLoadingDone chan struct{}
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audioLoaded bool
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)
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func update(screen *ebiten.Image) error {
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if !audioLoaded {
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select {
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case <-audioLoadingDone:
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audioLoaded = true
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default:
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}
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}
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msg := fmt.Sprintf("FPS: %0.2f", ebiten.CurrentFPS())
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if !audioLoaded {
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msg += "\nNow Loading..."
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}
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ebitenutil.DebugPrint(screen, msg)
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return nil
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}
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func main() {
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// Use a FLAC file so far: I couldn't find any good OGG/Vorbis decoder in pure Go.
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f, err := ebitenutil.OpenFile("_resources/audio/ragtime.ogg")
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if err != nil {
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log.Fatal(err)
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}
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// TODO: sampleRate should be obtained from the ogg file.
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audioContext = audio.NewContext(22050)
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audioLoadingDone = make(chan struct{})
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// TODO: This doesn't work synchronously on browsers because of decoding. Fix this.
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go func() {
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s, err := audioContext.NewVorbisStream(f)
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if err != nil {
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log.Fatal(err)
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return
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}
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p, err := audioContext.NewPlayer(s)
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if err != nil {
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log.Fatal(err)
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return
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}
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close(audioLoadingDone)
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p.Play()
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}()
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if err := ebiten.Run(update, screenWidth, screenHeight, 2, "Audio (Ebiten Demo)"); err != nil {
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log.Fatal(err)
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}
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}
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