public void MidiPress(MidiLevelDriverInstance newDriver)
{
if (this.GetPresetForChannelIndex(newDriver.ChannelIndex) != null)
{
this.driversByChannel[newDriver.ChannelIndex] = newDriver;
this.lastChannelInteractionTime = newDriver.PressTimestamp;
}
}
private double CurrentMidiLevelDriverValueWithoutReleaseForChannel(
MidiLevelDriverInstance driver,
MidiLevelDriverPreset preset,
long currentTime
)
{
long timeSincePress = currentTime - driver.PressTimestamp;
double realPeak = driver.PressVelocity * preset.PeakLevel;
if (timeSincePress < preset.AttackTime)
{
return(((double)timeSincePress / preset.AttackTime) * realPeak);
}
long timeSinceDecayBegan = timeSincePress - preset.AttackTime;
double realSustain = driver.PressVelocity * preset.SustainLevel;
if (timeSinceDecayBegan > preset.DecayTime)
{
return(realSustain);
}
return(realPeak -
(double)timeSinceDecayBegan / preset.DecayTime * (realPeak - realSustain));
}