VoiceSystem.cs :  » Game » RealmForge » RealmForge » Audio » C# / CSharp Open Source

using System;

namespace RealmForge.Audio{
  /// <summary>
  /// Summary description for VoiceSystem.
  /// </summary>
  public class VoiceSystem : AudioSystemBase
  {
    #region Fields, Properties
    /// <summary>
    /// Singleton instance of the VoiceSystem object.
    /// </summary>
    public static readonly VoiceSystem  Instance = new VoiceSystem();
    private ListenerBase        listener;
    private AudioSubSystem        subSystem = AudioSubSystem.OpenAL; // Default to OpenAL.
    /// <summary>
    /// Represents the listener of the voice.
    /// </summary>
    public override ListenerBase Listener
    {
      get
      {
        return listener;
      }
    }
    /// <summary>
    /// Controls which audio subsystem is in use. See <see cref="AudioSubSystem"/>
    /// the AudioSubSystem enumeration for possible values.
    /// </summary>
    public override AudioSubSystem SubSystem
    {
      get
      {
        return subSystem;
      }
      set
      {
        subSystem = value;
        //
        // Determine the subsystem that will be used and perform
        // initialization for it.
        switch(subSystem)
        {
          case AudioSubSystem.OpenAL:
            //
            // Initialize OpenAL.
            AudioSystemShared.InitializeOpenAL();
            //
            // Setup the OpenAL listener.
            listener = new OpenALListener();
            break;
          case AudioSubSystem.DirectX:
            //
            // Exit OpenAL, if necessary. Initialize DirectX.
            AudioSystemShared.ExitOpenAL();
            break;
        }
      }
    }
    #endregion

    #region Methods
    /// <summary>
    /// Performs clean up for unmanaged resources.
    /// </summary>
    protected override void Cleanup()
    {
      //
      // Clean up unmanaged resources here.
      // Exit OpenAL, if necessary.
      AudioSystemShared.ExitOpenAL();
      base.Cleanup();
    }
    
    #endregion
  }
}