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-rw-r--r--ShiftOS_TheReturn/AudioManager.cs134
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diff --git a/ShiftOS_TheReturn/AudioManager.cs b/ShiftOS_TheReturn/AudioManager.cs
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-/*
- * MIT License
- *
- * Copyright (c) 2017 Michael VanOverbeek and ShiftOS devs
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#define NOSOUND
-
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Text;
-using System.Threading;
-using System.Threading.Tasks;
-using NAudio;
-using NAudio.Wave;
-
-namespace ShiftOS.Engine
-{
- public static class AudioManager
- {
- private static WaveOut _out = null;
- private static AudioFileReader _reader = null;
- private static IAudioProvider _provider = null;
-
- /// <summary>
- /// Stops the current sound if one is playing and disposes of the sound.
- /// </summary>
- public static void Stop()
- {
- _out?.Stop();
- _reader?.Dispose();
- _out?.Dispose();
- }
-
- /// <summary>
- /// Initiates this engine module using an <see cref="IAudioProvider"/> as a backend for selecting background soundtrack as well as the volume level for the sound.
- /// </summary>
- /// <param name="_p">A background soundtrack and volume provider.</param>
- /// <exception cref="ArgumentNullException">Thrown if <paramref name="_p"/> is null.</exception>
- public static void Init(IAudioProvider _p)
- {
- if (_p == null)
- throw new ArgumentNullException("_p");
- _provider = _p;
- }
-
- /// <summary>
- /// Sets the volume of the audio system.
- /// </summary>
- /// <param name="volume">The volume to use, from 0 to 1.</param>
- public static void SetVolume(float volume)
- {
- _provider.Volume = volume; //persist between songs
- _out.Volume = volume;
- }
-
- /// <summary>
- /// Plays a specified sound file.
- /// </summary>
- /// <param name="file">The file to play.</param>
- public static void Play(string file)
- {
- try
- {
- _reader = new AudioFileReader(file);
- _out = new WaveOut();
- _out.Init(_reader);
- _out.Volume = _provider.Volume;
- _out.Play();
- _out.PlaybackStopped += (o, a) => { PlayCompleted?.Invoke(); };
- }
- catch { }
- }
-
- /// <summary>
- /// Writes the data in the specified <see cref="Stream"/> to a file, and plays it as a sound file.
- /// </summary>
- /// <param name="str">The stream to read from.</param>
- public static void PlayStream(Stream str)
- {
- var bytes = new byte[str.Length];
- str.Read(bytes, 0, bytes.Length);
- ShiftOS.Engine.AudioManager.Stop();
- if (File.Exists("snd.wav"))
- File.Delete("snd.wav");
- File.WriteAllBytes("snd.wav", bytes);
-
- ShiftOS.Engine.AudioManager.Play("snd.wav");
-
- }
-
- public static event Action PlayCompleted;
- }
-
- public interface IAudioProvider
- {
- /// <summary>
- /// Gets a byte[] array corresponding to an MP3 track given an index.
- /// </summary>
- /// <param name="index">A track index to use when finding the right track.</param>
- /// <returns>The MP3 byte[] array.</returns>
- byte[] GetTrack(int index);
-
- /// <summary>
- /// Gets the 1-based count of all available tracks.
- /// </summary>
- int Count { get; }
-
- /// <summary>
- /// Gets or sets the track player's volume.
- /// </summary>
- float Volume { get; set; }
- }
-}