public static void Write(this HanoiComponent component, int discNumber = -1)
{
var oldForegroundColor = Console.ForegroundColor;
Console.ForegroundColor = component.GetColor(discNumber);
Console.Write(component.GetChar());
Console.ForegroundColor = oldForegroundColor;
}
public static char GetChar(this HanoiComponent component)
{
switch (component)
{
case HanoiComponent.Base:
//return '=';
return('\u25a0');
case HanoiComponent.Peg:
//return '|';
return('\u2588');
case HanoiComponent.Disc:
//return '*';
return('\u2588');
default:
throw new Exception(
$"Enumeration value {nameof(component)} = {component.ToString()} not handled by programmer.");
}
}
public static ConsoleColor GetColor(this HanoiComponent component, int discNumber = -1)
{
switch (component)
{
case HanoiComponent.Base:
case HanoiComponent.Peg:
return(ConsoleColor.DarkRed);
case HanoiComponent.Disc:
// Without the discNumber argument the disc will be
// colored uniformly with a default color.
// If the argument is given the disc will be colored
// according to the number in a repeating color
// scheme.
return(discNumber < 1
? ConsoleColor.Yellow
: DiscColorWheel().Skip(discNumber - 1).Take(1).Single());
default:
throw new Exception(
$"Enumeration value {nameof(component)} = {component.ToString()} not handled by programmer.");
}
}
