public void Release()
{
if (State != StateADSR.Stopped && State != StateADSR.Release)
{
State = StateADSR.Release;
timer = 0;
}
}
public double Step(double deltaTime)
{
if (Stopped)
{
return(0);
}
Amplitude = 1;
if (State == StateADSR.Attack)
{
if (timer >= AttackTime)
{
State = StateADSR.Decay;
timer -= AttackTime;
}
else
{
Amplitude = (float)(timer / AttackTime);
}
}
if (State == StateADSR.Decay)
{
if (timer >= DecayTime)
{
State = StateADSR.Sustain;
timer = 0;
}
else
{
float t = (float)(timer / DecayTime);
Amplitude = Mathf.Lerp(1f, SustainVolume, t);
}
}
if (State == StateADSR.Sustain)
{
Amplitude = SustainVolume;
if (Mathf.Approximately(Amplitude, 0))
{
State = StateADSR.Stopped;
}
}
if (State == StateADSR.Release)
{
if (timer >= ReleaseTime)
{
State = StateADSR.Stopped;
Amplitude = 0;
}
else
{
Amplitude = 1f - (float)(timer / ReleaseTime);
}
}
timer += deltaTime;
return(Amplitude);
}
public void Trigger()
{
timer = 0;
State = StateADSR.Attack;
Amplitude = 0;
}
