public void StopSound(Sound s)
{
if (s == null)
{
return;
}
bool Match(PlayingSample p) => !p.Finished && p.AudioSample == s;
if (playingSamples != null && playingSamples.Exists(Match))
{
int index = playingSamples.FindIndex(Match);
PlayingSample ps = playingSamples[index];
ps.Finished = true;
playingSamples[index] = ps;
}
}
private float GetMixerOutput(int channel, float globalTime, float timeStep)
{
const float MaxValue = 1f / short.MaxValue;
float mixerSample = 0.0f;
if (playingSamples != null)
{
for (int i = 0; i < playingSamples.Count; i++)
{
PlayingSample ps = playingSamples[i];
float increment = ps.AudioSample.WavHeader.SamplesPerSec * timeStep;
ps.SamplePosition += (long)Math.Ceiling(increment);
if (ps.SamplePosition < ps.AudioSample.SampleCount)
{
mixerSample +=
ps.AudioSample.Samples[(ps.SamplePosition * ps.AudioSample.Channels) + channel] * MaxValue * ps.AudioSample.Volume;
}
else
{
if (ps.Loop)
{
ps.SamplePosition = 0;
}
else
{
ps.Finished = true;
}
}
playingSamples[i] = ps;
playingSamples.RemoveAll(s => s.Finished);
}
}
mixerSample += OnSoundCreate(channel, globalTime, timeStep);
mixerSample = OnSoundFilter(channel, globalTime, mixerSample);
mixerSample *= MasterVolume;
return(mixerSample);
}
/// <summary> Play a given sound object. </summary>
/// <param name="s"> Sound to play </param>
public void PlaySound(Sound s)
{
if (s == null)
{
return;
}
if (playingSamples == null)
{
playingSamples = new List <PlayingSample>();
}
PlayingSample ps = new PlayingSample {
AudioSample = s,
SamplePosition = 0,
Finished = false,
Loop = s.Loop
};
playingSamples.Add(ps);
}