because.cs

using System;
using System.Collections.Generic;

namespace ConsoleApplication28
{
	internal class Program
	{
		public delegate bool GetNum(string prompt, out int val);

		private static readonly Dictionary<GuessAnswerKey, Func<int, string>> answerMap = new Dictionary
			<GuessAnswerKey, Func<int, string>>
		{
			{new GuessAnswerKey(true, true), number => "Something is like really bad"},
			{new GuessAnswerKey(true, false), number => "Too low"},
			{new GuessAnswerKey(false, true), number => "Too high"},
			{new GuessAnswerKey(false, false), number => string.Format("You guess correctly! You guessed {0}", number)},
		};

		private static readonly GetNum Reader = (string prompt, out int val) =>
		{
			Console.Write(prompt);
			return int.TryParse(Console.ReadLine(), out val);
		};


		private static void Main(string[] args)
		{
			var numToGuess = 6; // random number, chosen by fair dice roll

			Console.WriteLine("Enter a number between 1 and 100. Anything else to quit");
			int guess;

			Reader("Guess: ", out guess);
			do
			{
				Console.WriteLine(answerMap[new GuessAnswerKey(guess < numToGuess, guess > numToGuess)](guess));

			} while (guess != numToGuess && Reader("Guess: ", out guess));
		}

		internal struct GuessAnswerKey
		{
			internal GuessAnswerKey(bool guessTooLow, bool guessTooHigh)
				: this()
			{
				GuessTooLow = guessTooLow;
				GuessTooHigh = guessTooHigh;
			}

			internal bool GuessTooLow { get; private set; }
			internal bool GuessTooHigh { get; private set; }
		}
	}
}