protected internal override void RenderUpdate()
{
var entitySpan = World.GetEntitySet(e => e.Has <AudioListener>()).ReadEntities();
if (entitySpan.Length == 0)
{
return;
}
if (entitySpan.Length > 1)
{
throw new InvalidOperationException($"Only a single {nameof(AudioListener)} is allowed to exist in a world.");
}
var entity = entitySpan[0];
Vector3 position;
if (entity.Has <Transform>())
{
var transform = entity.Get <Transform>();
var up = transform.Up;
var lookAt = -transform.Forward;
position = transform.Position;
OrientationArray[0] = lookAt.x;
OrientationArray[1] = lookAt.y;
OrientationArray[2] = lookAt.z;
OrientationArray[3] = up.x;
OrientationArray[4] = up.y;
OrientationArray[5] = up.z;
}
else
{
position = Vector3.Zero;
for (int i = 0; i < OrientationArray.Length; i++)
{
OrientationArray[i] = 0f;
}
}
AL.Listener3(ListenerFloat3.Position, position.x, position.y, position.z);
AL.Listener(ListenerFloatArray.Orientation, OrientationArray);
AudioEngine.CheckALErrors();
}
public unsafe void SetData <T>(T[] data, int channelsNum, int bytesPerSample, int sampleRate) where T : unmanaged
{
if (data == null)
{
throw new ArgumentNullException(nameof(data));
}
this.channelsNum = channelsNum;
this.bytesPerSample = bytesPerSample;
this.sampleRate = sampleRate;
LengthInSeconds = data.Length / (float)sampleRate / channelsNum;
var format = GetSoundFormat(channelsNum, bytesPerSample);
fixed(T *ptr = data)
{
AL.BufferData(bufferId, format, (IntPtr)ptr, data.Length * Marshal.SizeOf <T>(), sampleRate);
}
AudioEngine.CheckALErrors();
}