/// <summary>
/// Constructor
/// </summary>
/// <param name="soundEffect">Sound effect</param>
/// <param name="sourceVoice">Source voice</param>
/// <param name="emitterDescription">Emitter description</param>
/// <param name="listenerDescription">Listener description</param>
/// <param name="destroyWhenFinished">Sets whether the instance must be disposed after it's finished</param>
internal GameAudioEffectInstance(
GameAudioEffect soundEffect,
SourceVoice sourceVoice,
GameAudioSourceDescription emitterDescription,
GameAudioSourceDescription listenerDescription,
bool destroyWhenFinished)
{
Effect = soundEffect;
voice = sourceVoice;
paused = false;
IsLooped = false;
volume = 1.0f;
pan = 0.0f;
pitch = 0.0f;
outputMatrix = null;
Emitter = new GameAudioEmitter(emitterDescription);
Listener = new GameAudioListener(listenerDescription);
voice.BufferStart += SourceVoice_BufferStart;
voice.BufferEnd += SourceVoice_BufferEnd;
voice.LoopEnd += SourceVoice_LoopEnd;
this.destroyWhenFinished = destroyWhenFinished;
}
/// <summary>
/// Updates emitter state
/// </summary>
/// <param name="audioEmitter">Emitter state</param>
private void UpdateEmitter(GameAudioEmitter audioEmitter)
{
if (emitter == null)
{
emitter = new Emitter();
}
emitter.Position = audioEmitter.Position;
emitter.OrientFront = audioEmitter.Forward;
emitter.OrientTop = audioEmitter.Up;
emitter.Velocity = audioEmitter.Velocity;
emitter.ChannelCount = this.Effect.WaveFormat.Channels;
emitter.ChannelRadius = 1;
if (emitter.ChannelCount > 1)
{
emitter.ChannelAzimuths = new float[emitter.ChannelCount];
}
emitter.InnerRadius = 2;
emitter.InnerRadiusAngle = MathUtil.PiOverFour;
emitter.VolumeCurve = GameAudioPresets.DefaultLinearCurve;
emitter.LfeCurve = GameAudioPresets.DefaultEmitterLfeCurve;
emitter.ReverbCurve = GameAudioPresets.DefaultEmitterReverbCurve;
emitter.CurveDistanceScaler = GameAudio.DistanceScale * audioEmitter.Radius;
emitter.DopplerScaler = GameAudio.DopplerScale;
if (audioEmitter.Cone.HasValue)
{
if (emitter.Cone == null)
{
emitter.Cone = new Cone();
}
emitter.Cone.InnerAngle = audioEmitter.Cone.Value.InnerAngle;
emitter.Cone.InnerVolume = audioEmitter.Cone.Value.InnerVolume;
emitter.Cone.InnerLpf = audioEmitter.Cone.Value.InnerLpf;
emitter.Cone.InnerReverb = audioEmitter.Cone.Value.InnerReverb;
emitter.Cone.OuterAngle = audioEmitter.Cone.Value.OuterAngle;
emitter.Cone.OuterVolume = audioEmitter.Cone.Value.OuterVolume;
emitter.Cone.OuterLpf = audioEmitter.Cone.Value.OuterLpf;
emitter.Cone.OuterReverb = audioEmitter.Cone.Value.OuterReverb;
}
}
