public static Color RandomHueColor(float saturation, float lightness)
{
var hue = Random.Range(0, 360f);
var hsl = new RGBHSL(hue, saturation, lightness);
return(ColorConverter.ConvertRGBHSL(hsl));
}
public static Color ConvertRGBHSL(RGBHSL c)
{
float R = c.R / 255f;
float G = c.G / 255f;
float B = c.B / 255f;
float A = c.A / 255f;
return(new Color(R, G, B, A));
}
public RGBHSL(float H, float S, float L, byte A = 255)
{
this.H = H;
this.S = S;
this.L = L;
this.A = A;
RGBHSL c = ColorConverter.ConvertHSL(H, S, L);
R = c.R;
G = c.G;
B = c.B;
}
/// <summary>
///
/// </summary>
/// <param name="hue">0..359</param>
/// <param name="saturation">0..1</param>
/// <param name="lightness">0..1</param>
/// <returns></returns>
public static RGBHSL ConvertHSL(float hue, float saturation, float lightness)
{
float C = lightness * saturation;
float X = C * (1 - Mathf.Abs((hue / 60) % 2 - 1));
float M = lightness - C;
Vector3 rgbTemp = new Vector3(0, 0, 0);
hue = ClampExclusive(0, 360, hue);
if (0 <= hue && hue < 60)
{
rgbTemp = new Vector3(C, X, 0);
}
else if (60 <= hue && hue < 120)
{
rgbTemp = new Vector3(X, C, 0);
}
else if (120 <= hue && hue < 180)
{
rgbTemp = new Vector3(0, C, X);
}
else if (180 <= hue && hue < 240)
{
rgbTemp = new Vector3(0, X, C);
}
else if (240 <= hue && hue < 300)
{
rgbTemp = new Vector3(X, 0, C);
}
else if (300 <= hue && hue < 360)
{
rgbTemp = new Vector3(C, 0, X);
}
byte r = (byte)Mathf.RoundToInt((rgbTemp.x + M) * 255f);
byte g = (byte)Mathf.RoundToInt((rgbTemp.y + M) * 255f);
byte b = (byte)Mathf.RoundToInt((rgbTemp.z + M) * 255f);
RGBHSL c = new RGBHSL(r, g, b, hue, saturation, lightness);
return(c);
}
