rhythmbullet/RhythmBullet/Audio/MusicController.cs

128 lines
2.9 KiB
C#

using Microsoft.Xna.Framework.Media;
using NAudio.Dsp;
using NAudio.Wave;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace RhythmBullet.Audio
{
internal class MusicController : IDisposable
{
public readonly MusicList musicList;
WaveOutEvent outputDevice;
TransparentSampleProvider transparentSampleProvider;
AudioFileReader audioInput;
Random random;
float volume;
private float Volume
{
get
{
return volume;
}
set
{
if (outputDevice != null)
{
outputDevice.Volume = value;
}
volume = value;
}
}
private int PlayingIndex
{
get
{
return musicList.List.IndexOf(audioInput.FileName);
}
set
{
if (value < 0) value = musicList.List.Count -1;
if (value >= musicList.List.Count) value = 0;
LoadMusic(musicList.List[value]);
}
}
public MusicController()
{
musicList = new MusicList();
musicList.SearchCompleteEvent += MusicListRefreshListener;
random = new Random();
}
public MusicController(MusicList musicList)
{
random = new Random();
this.musicList = musicList;
this.musicList.SearchCompleteEvent += MusicListRefreshListener;
}
private void LoadMusic(string path)
{
outputDevice?.Dispose();
audioInput?.Dispose();
audioInput = new AudioFileReader(path);
transparentSampleProvider = new TransparentSampleProvider(audioInput);
outputDevice = new WaveOutEvent();
outputDevice.Volume = Volume;
outputDevice.Init(transparentSampleProvider);
}
public void Skip()
{
PlayingIndex++;
}
public void Previous()
{
PlayingIndex--;
}
public void Shuffle()
{
PlayingIndex = random.Next(0, musicList.List.Count);
}
public void Play()
{
outputDevice.Play();
}
public void Pause()
{
outputDevice.Pause();
}
public void Stop()
{
outputDevice.Stop();
}
public TimeSpan Position()
{
return audioInput.CurrentTime;
}
public void Dispose()
{
audioInput?.Dispose();
outputDevice?.Dispose();
musicList.SearchCompleteEvent -= MusicListRefreshListener;
}
public void MusicListRefreshListener(MusicList musicList)
{
}
}
}