/// <summary>
/// Checks whether two colors are similar to each other.
/// </summary>
/// <param name="colorA">First color for comparison.</param>
/// <param name="colorB">Gets compared to colorA.</param>
/// <param name="percentage">How similar the colors have to be between 0 and 1.</param>
public static bool AreSimilar(RgbColor colorA, RgbColor colorB, float percentage)
{
ContractCheck.ValidPercentage(percentage, nameof(percentage));
ContractCheck.ArgumentNotNull(colorA, nameof(colorA));
ContractCheck.ArgumentNotNull(colorB, nameof(colorB));
RgbColor c1 = new RgbColor(0, 0, 0);
RgbColor c2 = new RgbColor(0, 0, 0);
c1.R = Math.Min(colorA.R, colorB.R);
c1.G = Math.Min(colorA.G, colorB.G);
c1.B = Math.Min(colorA.B, colorB.B);
c2.R = Math.Max(colorA.R, colorB.R);
c2.G = Math.Max(colorA.G, colorB.G);
c2.B = Math.Max(colorA.B, colorB.B);
return(!(c1.R * 1.0 / c2.R < percentage ||
c1.G * 1.0 / c2.G < percentage ||
c1.B * 1.0 / c2.B < percentage));
}
/// <summary>
/// Generates a random color that differs at least 20% from another color and has a higher chance for distinct colors.
/// </summary>
/// <param name="differFromThis">Color the generated color should differ from.</param>
/// <returns>The new generated random color.</returns>
public static RgbColor GetRandom(RgbColor differFromThis)
{
if (differFromThis == null)
{
return(GetRandom());
}
byte r;
byte g;
byte b;
RgbColor returnColor;
do
{
int rnd = _rndm.Next(0, 6);
r = (byte)_rndm.Next(0, 120);
g = (byte)_rndm.Next(0, 120);
b = (byte)_rndm.Next(0, 120);
switch (rnd)
{
case 0: r = 255; break;
case 1: g = 255; break;
case 2: b = 255; break;
case 3: r = 255; g = 255; break;
case 4: r = 255; b = 255; break;
case 5: g = 255; b = 255; break;
default:
break;
}
returnColor = new RgbColor(r, g, b);
} while (differFromThis != null && AreSimilar(returnColor, differFromThis, 0.2f));
return(returnColor);
}
/// <summary>
/// Sets all colors of the image to a new color.
/// </summary>
/// <param name="color">The new color.</param>
public void SetAll(RgbColor color)
{
Leds.ForEach(x => x.SetColor(color));
}
/// <summary>
/// Sets new rgb values based on another color instance.
/// </summary>
/// <param name="col">The source for the new rgb values.</param>
public void SetColor(RgbColor col)
{
R = col.R;
G = col.G;
B = col.B;
}