Guess demo improvements.

Demos/Guess/Kernel.cs

@@ -1,8 +1,6 @@
 using System;
-using System.Collections.Generic;
+
-using System.Runtime.InteropServices;
+using Cosmos.Debug.Kernel;
-using System.Text;
-//using Cosmos.Debug.Kernel;
 using Sys = Cosmos.System;
 
 /*
@@ -13,55 +11,61 @@ namespace Guess
 {
     public class GuessOS : Sys.Kernel
     {
-        protected int mCount = 0;
+        private Random mRandom;
-
+        private int mCount;
-        protected int mMagicNo = 22;
+        private int mNumber;
-
-        public GuessOS()
-        {
-            // Didnt check if tickcount is working yet.. can change this later
-            //var xRandom = new Random(234243534);
-            //mMagicNo = xRandom.Next(1, 100);
-        }
         
         protected override void BeforeRun()
         {
-            //Cosmos.Core.HMI.Init();
+            mRandom = new Random();
+
+            mCount = 0;
+            mNumber = mRandom.Next(1, 100);
+
             Console.Clear();
 
             Console.WriteLine("Guess Demo");
+            Console.WriteLine("----------");
+            Console.WriteLine();
             Console.WriteLine("Please guess a number from 1 to 100.");
+            Console.WriteLine();
         }
 
         protected override void Run()
         {
             mCount++;
             
-            //mDebugger.Send("");
+            Console.Write($"Guess #{mCount}: ");
-            //mDebugger.SendMessage("Kernel", "New iteration");
+            
-            Console.WriteLine();
+            var xGuess = Int32.Parse(Console.ReadLine());
-            Console.WriteLine("Guess #" + mCount);
+            mDebugger.Send($"Guess#{mCount}: {xGuess}");
-            Console.Write("Please enter a guess: ");
+
-            string xInputStr = Console.ReadLine();
+            if (xGuess < mNumber)
-            Console.Write("Input length: ");
-            Console.WriteLine(xInputStr.Length.ToString());
-            int xGuess = int.Parse(xInputStr);
-            Console.WriteLine("Your guess was " + xGuess);
-            if (xGuess < mMagicNo)
             {
                 Console.WriteLine("Too low.");
             }
-            else if (xGuess > mMagicNo)
+            else if (xGuess > mNumber)
             {
                 Console.WriteLine("Too high.");
             }
             else
             {
                 Console.WriteLine("You guessed it!");
-                Console.WriteLine("Press any key to end Guess Demo. Thanks for playing!");
+                Console.WriteLine("Press s to stop or any other key to play again. Thanks for playing!");
-                Console.ReadKey();
+
-                Stop();
+                if (Console.ReadKey().Key == ConsoleKey.S)
+                {
+                    Stop();
+                }
+
+                mNumber = mRandom.Next(1, 100);
+                mCount = 0;
             }
         }
+
+        protected override void AfterRun()
+        {
+            Sys.Power.Shutdown();
+        }
     }
 }

source/Cosmos.System2_Plugs/System/RandomImpl.cs

@@ -5,7 +5,7 @@ using Cosmos.HAL;
 namespace Cosmos.System_Plugs.System
 {
     [Plug(Target = typeof(Random))]
-    public class RandomImpl
+    public static class RandomImpl
     {
         public static void Ctor(Random aThis)
         {
@@ -17,6 +17,9 @@ namespace Cosmos.System_Plugs.System
             //empty ATM
         }
 
+        // TODO: improve this
+        public static int GenerateGlobalSeed() => RTC.Second;
+
         public static int Next(Random aThis, int maxValue)
         {
             return (int)(GetUniform() * maxValue);