double GetStateLength(double inp, EnvelopeTimeScale scale)
{
if (scale == EnvelopeTimeScale.Long)
{
inp *= 10;
}
return((inp * 200) + 1);
}
public double Get(out double linear, double attack, double decay, double sustain, double release, double curvature, EnvelopeTimeScale timeScale, EnvelopeMode envMode)
{
if (CurrentState != State.InActive)
{
StateTime++;
}
switch (CurrentState)
{
case State.Attack:
{
double L = GetStateLength(attack, timeScale);
double P = StateTime / L;
Value += 1.0 / L;
if (Value >= 1)
{
Value = 1.0;
DecayStart = 1.0;
CurrentState = State.Decay;
StateTime = 0;
}
linear = Value;
return(Curved(Value, curvature));
}
case State.Decay:
{
double L = GetStateLength(decay, timeScale);
double P = StateTime / L;
Value -= 1.0 / L;
if (Value <= sustain)
{
Value = sustain;
if (envMode == EnvelopeMode.Trigger || envMode == EnvelopeMode.Loop)
{
ReleaseStart = Value;
CurrentState = State.Release;
StateTime = 0;
}
else
{
CurrentState = State.Sustain;
StateTime = 0;
}
}
linear = Value;
return(sustain + Curved((Value - sustain) / (DecayStart - sustain), curvature) * (1 - sustain));
}
case State.Sustain:
{
StateTime = 0;
linear = sustain;
return(sustain);
}
case State.Release:
{
double L = GetStateLength(release, timeScale);
double P = StateTime / L;
Value -= 1.0 / L;
if (Value <= 0)
{
Value = 0;
if (envMode == EnvelopeMode.Loop && Trigger)
{
CurrentState = State.Attack;
StateTime = 0;
}
else
{
CurrentState = State.InActive;
StateTime = 0;
}
}
linear = Value;
return(Curved(Value / (1 - sustain), curvature) * sustain);
}
case State.InActive: linear = 0; return(0);
}
linear = 0;
return(0);
}