public static string Rainbow(string str, ColorParameters cparam)
{
// Returns a string with VT100 color codes added.
// Color spectrum is generated using parameters stored in ColorParameters object
// adapted from https://krazydad.com/tutorials/makecolors.php
string rainbowString = "";
float phaseOffset;
if (cparam.EnablePhaseShift)
{
phaseOffset = cparam.PhaseOffset * cparam.PhaseShift;
cparam.PhaseShift++;
}
else
{
phaseOffset = cparam.PhaseOffset;
}
for (var i = 0; i < str.Length; ++i)
{
double red = Math.Sin(cparam.FrequencyRed * i + cparam.PhaseRed + phaseOffset) * cparam.Width + cparam.Center;
double green = Math.Sin(cparam.FrequencyGreen * i + cparam.PhaseGreen + phaseOffset) * cparam.Width + cparam.Center;
double blue = Math.Sin(cparam.FrequencyBlue * i + cparam.PhaseBlue + phaseOffset) * cparam.Width + cparam.Center;
rainbowString += "\u001b[38;2;" + (int)red + ";" + (int)green + ";" + (int)blue + "m" + str[i];
}
return(rainbowString);
}
public static void LightGray(ColorParameters cparam)
{
cparam.Center = 200;
cparam.Width = 55;
cparam.PhaseRed = 0F;
cparam.PhaseGreen = 0F;
cparam.PhaseBlue = 0F;
}
public static void SetColorPalleteRange(int option, ColorParameters cparam)
{
switch (option)
{
case 1: //light pastel
ColorParameterPresets.LightPastel(cparam);
break;
case 2: // dark pastel
ColorParameterPresets.DarkPastel(cparam);
break;
case 3:
ColorParameterPresets.LightGray(cparam);
break;
default:
Console.WriteLine("Invalid pallete selection.");
break;
}
}
public static void DarkPastel(ColorParameters cparam)
{
cparam.Center = 200;
cparam.Width = 55;
}
public static void LightPastel(ColorParameters cparam)
{
cparam.Center = 230;
cparam.Width = 25;
}