計算機科学のブログ


Console.WriteLine("Welcome to HiLo.");
Console.WriteLine($"Guess numbers between 1 and {HiLoGame.MAXIMUM}");
HiLoGame.Hint();
while (HiLoGame.GetPot() > 0)
{
    Console.WriteLine("Press h for higher, l for lower, ? to buy a hint,");
    Console.WriteLine($"or any other key to quit with {HiLoGame.GetPot()}.");
    char key = Console.ReadKey(true).KeyChar;
    if (key == 'h')
    {
        HiLoGame.Guess(true);
    }
    else if (key == 'l')
    {
        HiLoGame.Guess(false);

    }
    else if (key == '?')
    {
        HiLoGame.Hint();
    }
    else
    {
        return;
    }
}
Console.WriteLine("THe pot is empty. Bye!");
static class HiLoGame
{
    public const int MAXIMUM = 10;
    private static Random random = new Random();
    private static int currentNumber = random.Next(1, MAXIMUM + 1);
    private static int pot = 10;

    internal static int GetPot()
    {
        return pot;
    }

    internal static void Guess(bool higher)
    {
        int nextNumber = random.Next(1, MAXIMUM + 1);
        if ((higher && nextNumber >= currentNumber) ||
        (!higher && nextNumber <= currentNumber))
        {
            Console.WriteLine("You guessed right!");
            pot++;
        }
        else
        {
            Console.WriteLine("Bad luck, you guessed wrong.");
            pot--;
        }
        currentNumber = nextNumber;
        Console.WriteLine($"The current number is {currentNumber}");

    }

    internal static void Hint()
    {
        int half = MAXIMUM / 2;
        if (currentNumber >= half)
        {
            Console.WriteLine($"The number is at least {half}");
        }
        else
        {
            Console.WriteLine($"The number is at most {half}");

        }
        pot--;
    }
}

% dotnet run
Welcome to HiLo.
Guess numbers between 1 and 10
The number is at least 5
Press h for higher, l for lower, ? to buy a hint,
or any other key to quit with 9.
You guessed right!
The current number is 2
Press h for higher, l for lower, ? to buy a hint,
or any other key to quit with 10.
You guessed right!
The current number is 7
Press h for higher, l for lower, ? to buy a hint,
or any other key to quit with 11.
Bad luck, you guessed wrong.
The current number is 8
Press h for higher, l for lower, ? to buy a hint,
or any other key to quit with 10.
Bad luck, you guessed wrong.
The current number is 9
Press h for higher, l for lower, ? to buy a hint,
or any other key to quit with 9.
You guessed right!
The current number is 5
Press h for higher, l for lower, ? to buy a hint,
or any other key to quit with 10.
%