View difference between Paste ID: E7M5e0hN and 0UgfTpk7

 using System;
 using System.Collections.Generic;
 
 namespace Challenge {
 	/// <summary> The game class. </summary>
 	public class Game {
 		/// <summary> The variables. </summary>
 		private static Dictionary <string, string> Variables;
 		/// <summary> Whether the game is running. </summary>
 		private static bool Running;
 		/// <summary> The grid. </summary>
 		private static bool[][] Grid;
 
 		/// <summary> Waits for the given key to be pressed. </summary>
 		/// <param name='key'> The key to wait for. </param>
 		private static void WaitForKey(ConsoleKey key)
 		{
 			Console.WriteLine("Press the '{0}' key to continue.",
 							key.ToString());
 			while (Console.ReadKey().Key != key)
 				;
 		}
 
 		/// <summary> Waits for the Enter key to be pressed. </summary>
 		private static void WaitForKey()
 		{
 			Game.WaitForKey(ConsoleKey.Enter);
 		}
 
 		/// <summary> Handles user input. </summary>
 		private static void HandleInputs()
 		{
-			Console.Write("> ");
+			Console.Write("Command (\"help\" for help): ");
 			string[] tokens = Console.ReadLine().Split();
 			if (tokens.Length < 1)
 				return;
 			switch (tokens[0].ToLower()) {
 			case "get":
 				if (tokens.Length < 2) {
 					Console.WriteLine("Usage: get <variable>");
 					Game.WaitForKey();
 					break;
 				}
 				if (!(Game.Variables.ContainsKey(tokens[1]))) {
 					Console.WriteLine("Invalid variable name. Valid names are: ");
 					foreach (string key in Variables.Keys)
 						Console.WriteLine("\t{0}", key);
 					Game.WaitForKey();
 				} else {
 					Console.WriteLine("'{0}'='{1}'",
 					tokens[1], Game.Variables[tokens[1]]);
 					Game.WaitForKey();
 				}
 				break;
 			case "set":
 				if (tokens.Length < 3) {
 					Console.WriteLine("Usage: set <variable> <value>");
 					Game.WaitForKey();
 					break;
 				}
 				if (!(Game.Variables.ContainsKey(tokens[1]))) {
 					Console.WriteLine("Invalid variable name. Valid names are: ");
 					foreach (string key in Variables.Keys)
 						Console.WriteLine("\t{0}", key);
 					Game.WaitForKey();
 				} else {
 					Game.Variables[tokens[1]] = tokens[2];
 				}
 				break;
 			case "h":
 			case "help":
 			case "?":
 				Console.WriteLine("Commands:");
 				Console.WriteLine("h/help/?\tShow this help.");
 				Console.WriteLine("get\t\tGet a variable");
 				Console.WriteLine("set\t\tSet a variable");
 				Console.WriteLine("quit\t\tQuit game.");
 				Game.WaitForKey();
 				break;
 			case "quit":
 				Game.Running = false;
 				break;
 			}
 		}
 
 		/// <summary> Creates the grid. </summary>
 		private static void CreateGrid()
 		{
 			int width, height;
 			if (!(int.TryParse(Game.Variables["width"], out width)) || width < 0) {
 				Console.WriteLine("Invalid value 'width'='{0}'",
 							Game.Variables["width"]);
 				Game.WaitForKey();
 				return;
 			}
 			if (!(int.TryParse(Game.Variables["height"], out height)) || height < 0) {
 				Console.WriteLine("Invalid value 'height'='{0}'",
 							Game.Variables["height"]);
 				return;
 			}
 			if (width == 0 || height == 0)
 				return;
 			Game.Grid = new bool[height][];
 			for (int j = 0; j < height; ++j) {
 				Game.Grid[j] = new bool[width];
 				for (int i = 0; i < width; ++i) {
 					Game.Grid[j][i] = false;
 					int index = j * width + i;
 					string sw = String.Format("sw{0}", index);
 					if (!(Game.Variables.ContainsKey(sw))) {
 						Game.Variables.Add(sw, "false");
 					} else {
 						bool val;
 						if (!(bool.TryParse(Game.Variables[sw], out val))) {
 							Console.WriteLine("Invalid value '{0}'='{1}'",
 							sw, Game.Variables[sw]);
 							Game.WaitForKey();
 							return;
 						}
 						Game.Grid[j][i] = val;
 					}
 				}
 			}
 		}
 
 		/// <summary> Updates the screen. </summary>
 		private static void UpdateScreen()
 		{
 			Console.Clear();
 			if (Game.Grid == null)
 				return;
 			for (int j = 0; j < Game.Grid.Length; ++j) {
 				if (Game.Grid[j] == null)
 					return;
 				for (int i = 0; i < Game.Grid[j].Length; ++i)
 					Console.Write((Game.Grid[j][i]) ? '1' : '0');
 				Console.WriteLine();
 			}
 		}
 
 		/// <summary> The Main function. </summary>
 		public static void Main()
 		{
 			Game.Variables = new Dictionary<string, string>();
 			Game.Variables.Add("width", "0");
 			Game.Variables.Add("height", "0");
 			Game.Running = true;
 			while (Game.Running) {
 				Game.HandleInputs();
 				Game.CreateGrid();
 				Game.UpdateScreen();
 			}
 
 		}
 	}
 }