// Recalculate Exact Frequency to account for changes to Relative Frequency
// (This also displays to the user what the exact chance even is)
private static void RecalculateExactFrequency(ref ThemeOptions ThemeOptions)
{
double chanceTotal = ThemeOptions.RelativeFrequency[ImageType.Static] +
ThemeOptions.RelativeFrequency[ImageType.GIF] +
ThemeOptions.RelativeFrequency[ImageType.Video];
double staticRelativeChance = ThemeOptions.RelativeFrequency[ImageType.Static] / chanceTotal;
double gifRelativeChance = ThemeOptions.RelativeFrequency[ImageType.GIF] / chanceTotal;
double videoRelativeChance = ThemeOptions.RelativeFrequency[ImageType.Video] / chanceTotal;
Debug.WriteLine("chanceTotal: " + chanceTotal);
Debug.WriteLine("Static: " + staticRelativeChance);
Debug.WriteLine("GIF: " + gifRelativeChance);
Debug.WriteLine("Video: " + videoRelativeChance);
if (!ThemeOptions.WeightedFrequency)
{
ThemeOptions.ExactFrequency[ImageType.Static] = staticRelativeChance;
ThemeOptions.ExactFrequency[ImageType.GIF] = gifRelativeChance;
ThemeOptions.ExactFrequency[ImageType.Video] = videoRelativeChance;
}
else
{
// Gets the average of both the weighted frequency and the original exact frequency, allowing relative frequency to have an impact on the weight
double staticWeightedChance = WallpaperData.GetImageOfTypeWeight(ImageType.Static);
double gifWeightedChance = WallpaperData.GetImageOfTypeWeight(ImageType.GIF);
double videoWeightedChance = WallpaperData.GetImageOfTypeWeight(ImageType.Video);
if (staticWeightedChance == 1) // prevents a division by 0 error below
{
ThemeOptions.ExactFrequency[ImageType.Static] = 1;
ThemeOptions.ExactFrequency[ImageType.GIF] = ThemeOptions.ExactFrequency[ImageType.Video] = 0;
return;
}
if (gifWeightedChance == 1) // prevents a division by 0 error below
{
ThemeOptions.ExactFrequency[ImageType.GIF] = 1;
ThemeOptions.ExactFrequency[ImageType.Static] = ThemeOptions.ExactFrequency[ImageType.Video] = 0;
return;
}
if (videoWeightedChance == 1) // prevents a division by 0 error below
{
ThemeOptions.ExactFrequency[ImageType.Video] = 1;
ThemeOptions.ExactFrequency[ImageType.Static] = ThemeOptions.ExactFrequency[ImageType.GIF] = 0;
return;
}
/*x
* ThemeOptions.ExactFrequency[ImageType.Static] = (staticWeightedChance + staticRelativeChance) / 2;
* ThemeOptions.ExactFrequency[ImageType.GIF] = (gifWeightedChance + gifRelativeChance) / 2;
* ThemeOptions.ExactFrequency[ImageType.Video] = (videoWeightedChance + videoRelativeChance) / 2;
*/
double staticWeightedRelativeChance = staticRelativeChance / (1 - staticWeightedChance);
double gifWeightedRelativeChance = gifRelativeChance / (1 - gifWeightedChance);
double videoWeightedRelativeChance = videoRelativeChance / (1 - videoWeightedChance);
double weightedChanceTotal = staticWeightedRelativeChance + gifWeightedRelativeChance + videoWeightedRelativeChance;
ThemeOptions.ExactFrequency[ImageType.Static] = staticWeightedRelativeChance / weightedChanceTotal;
ThemeOptions.ExactFrequency[ImageType.GIF] = gifWeightedRelativeChance / weightedChanceTotal;
ThemeOptions.ExactFrequency[ImageType.Video] = videoWeightedRelativeChance / weightedChanceTotal;
}
}
