private void Tick(object source, ElapsedEventArgs e)
{
float cpuUtilisation = perfCounter.NextValue();
LEDColour targetColour = mapUsageToColour(cpuUtilisation);
if (currentColour != targetColour)
{
LEDController.SetLEDState(LEDTransition.getLEDTransition("ALWAYS_ON"), targetColour);
currentColour = targetColour;
}
}
private void Tick(object source, ElapsedEventArgs e)
{
LEDController.SetLEDState(LEDTransition.getLEDTransition("ALWAYS_ON"), LEDColour.AvailableColours.ElementAt(currentColourIndex));
if (currentColourIndex == maxColourIndex)
{
currentColourIndex = 0;
}
else
{
currentColourIndex++;
}
}
private void Tick(object source, ElapsedEventArgs e)
{
LEDController.SetLEDState(LEDTransition.getLEDTransition("ALWAYS_ON"), LEDColour.AvailableColours.ElementAt(currentColourIndex), currentBrightness);
// TODO more of the fade duration should be spent at the lower brightness levels, since the perceived change in brightness is much more apparent at the bottom end.
// e.g. the perceived difference between 0x10 and 0x20 is much larger than 0x50 and 0x60, so scaling up linearly wastes a lot of time increasing imperceivable brightness changes at the top of the range.
// presumably its logarithmic, like with sound?
if (fadeDirection == FadeDirection.Up)
{
if (currentBrightness == maxBrightness)
{
// Fade up finished, start fading down
fadeDirection = FadeDirection.Down;
}
else
{
// Continue fading up
currentBrightness += brightnessStepping;
}
}
else // Fading down
{
if (currentBrightness == minBrightness)
{
// Fade cycle complete. Change colour and fade up
fadeDirection = FadeDirection.Up;
if (currentColourIndex == maxColourIndex)
{
currentColourIndex = 0;
}
else
{
currentColourIndex++;
}
}
else
{
// Continue fading down
currentBrightness -= brightnessStepping;
}
}
}