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Colour.cs
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Colour.cs
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using System;
using System.Windows.Media;
namespace Game2
{
public class colour
{
public static Color GetColor(double distance)
{
int red = 0;
int green = 0;
int blue = 0;
HsvToRgb(distance * 360.0, 1, 1, out red, out green, out blue);
return Color.FromRgb((byte)red, (byte)green, (byte)blue);
}
static void HsvToRgb(double h, double S, double V, out int r, out int g, out int b)
{
double H = h;
while (H < 0) { H += 360; };
while (H >= 360) { H -= 360; };
double R, G, B;
if (V <= 0)
{ R = G = B = 0; }
else if (S <= 0)
{
R = G = B = V;
}
else
{
double hf = H / 60.0;
int i = (int)Math.Floor(hf);
double f = hf - i;
double pv = V * (1 - S);
double qv = V * (1 - S * f);
double tv = V * (1 - S * (1 - f));
switch (i)
{
// Red is the dominant color
case 0:
R = V;
G = tv;
B = pv;
break;
// Green is the dominant color
case 1:
R = qv;
G = V;
B = pv;
break;
case 2:
R = pv;
G = V;
B = tv;
break;
// Blue is the dominant color
case 3:
R = pv;
G = qv;
B = V;
break;
case 4:
R = tv;
G = pv;
B = V;
break;
// Red is the dominant color
case 5:
R = V;
G = pv;
B = qv;
break;
// Just in case we overshoot on our math by a little, we put these here. Since its a switch it won't slow us down at all to put these here.
case 6:
R = V;
G = tv;
B = pv;
break;
case -1:
R = V;
G = pv;
B = qv;
break;
// The color is not defined, we should throw an error.
default:
R = G = B = V; // Just pretend its black/white
break;
}
}
r = Clamp((int)(R * 255.0));
g = Clamp((int)(G * 255.0));
b = Clamp((int)(B * 255.0));
}
static int Clamp(int i)
{
if (i < 0) return 0;
if (i > 255) return 255;
return i;
}
}
}