public Pixel1D FadeToUsingHSV(int channel, Color color, double brightness, TimeSpan duration)
{
if (channel < 0 || channel >= this.pixelCount)
throw new ArgumentOutOfRangeException();
if (this.color[channel].GetBrightness() == 0)
{
this.color[channel] = color;
this.brightness[channel] = 0;
}
if (color.GetBrightness() == 0)
{
color = this.color[channel];
brightness = 0;
}
var startHSV = new HSV(this.color[channel]);
var endHSV = new HSV(color);
double startBrightness = this.brightness[channel];
// 10 steps per second
int steps = (int)(duration.TotalMilliseconds / 100);
double position = 0;
for (int i = 0; i < steps; i++)
{
double newBrightness = startBrightness + (brightness - startBrightness) * position;
double hue = startHSV.Hue + (endHSV.Hue - startHSV.Hue) * position;
double sat = startHSV.Saturation + (endHSV.Saturation - startHSV.Saturation) * position;
double val = startHSV.Value + (endHSV.Value - startHSV.Value) * position;
Color newColor = HSV.ColorFromHSV(hue, sat, val);
SetColor(channel, newColor, newBrightness);
System.Threading.Thread.Sleep(100);
position += 1.0 / (steps - 1);
}
return this;
}