public IndexedGeneratedPalette(
SpriteRamp ramp,
PaletteParameters parameters)
{
BasePalette = ramp.GetColorPalette(parameters);
ColorValues = ramp.ColorValues.ToArray();
PaletteAdjustments = ramp.Adjustments.ToArray();
#if DEBUG
System.Diagnostics.Debug.Assert(ramp.Count == ColorValues.Length, "Palette and ramp size must match");
System.Diagnostics.Debug.Assert(ramp.Count == PaletteAdjustments.Length, "Palette and ramp size must match");
#endif
// Saturation of the adjustment is reduced if the generated palette
// is itself low saturation
var rawParameters = (PaletteParameters)parameters.Clone();
rawParameters.YellowLight = 0;
rawParameters.BlueShadow = 0;
var rawPalette = ramp.GetColorPalette(rawParameters);
AdjustmentsSaturationMultiplier = SaturationMultiplier(
rawPalette.BaseColor, new XnaHSL(ramp.BaseColor));
//@Debug: per color saturation adjustments
/*AdjustmentsSaturationMultipliers = PaletteAdjustments
* .Select(x => 1f)
* .ToArray();
* for (int i = 0; i < AdjustmentsSaturationMultipliers.Length; i++)
* {
* AdjustmentsSaturationMultipliers[i] = SaturationMultiplier(
* rawPalette, ramp, i);
* }*/
}
private List <Tuple <float, float> > Errors(
PaletteParameters parameters,
List <PaletteEntry> ramp,
Range <float> range,
int count,
Func <PaletteGenerator, float, float> function)
{
PaletteGenerator copyGenerator = (PaletteGenerator)Clone();
PaletteParameters copyParameters = (PaletteParameters)parameters.Clone();
float interval = (range.Maximum - range.Minimum) / count;
var errors = new List <Tuple <float, float> >();
for (int i = 0; i <= count; i++)
{
float value = range.Minimum + interval * i;
function(copyGenerator, value);
// Kind of necessary for user facing values
// Minimize error on blue shadow
copyParameters.MinimizeBlueError(copyGenerator, ramp);
// Minimize error on yellow light
copyParameters.MinimizeYellowError(copyGenerator, ramp);
var palette = copyGenerator.GetPalette(copyParameters);
float error = palette.GetError(ramp);
errors.Add(Tuple.Create(value, error));
}
return(errors);
}
public GeneratedColorPalette GetColorPalette(PaletteParameters parameters)
{
parameters = (PaletteParameters)parameters.Clone();
// Adjust the lightness of the base color
XnaHSL baseHsl = new XnaHSL(this.BaseColor);
XnaHSL parametersHsl = new XnaHSL(parameters.BaseColor);
parametersHsl = parametersHsl.SetLightness(
MathHelper.Lerp(
parametersHsl.Lightness,
baseHsl.Lightness,
parameters.OriginalLightness));
parameters.BaseColor = parametersHsl.GetColor();
return(Ramp.Generator.GetPalette(parameters));
}
