3. prednaska

ConsoleApp1/ConsoleApp1.csproj

+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\NPuzzleCore\NPuzzleCore.csproj" />
+  </ItemGroup>
+
+</Project>

ConsoleApp1/Program.cs

+using System;
+using NPuzzle.Core;
+
+namespace ConsoleUi.App
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            Console.WriteLine("Hello World!");
+            Field field;
+        }
+    }
+}

NPuzzle2021.sln

@@ -3,9 +3,9 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 16
 VisualStudioVersion = 16.0.31005.135
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "NPuzzleCore", "NPuzzleCore\NPuzzleCore.csproj", "{B811769D-99DE-4E7E-9C33-4ABF157E78AB}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "NPuzzleCore", "NPuzzleCore\NPuzzleCore.csproj", "{B811769D-99DE-4E7E-9C33-4ABF157E78AB}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "NPuzzleConsole", "NPuzzleConsole\NPuzzleConsole.csproj", "{202AE2BB-A1CD-42F1-8ABD-4BF8F865A1BB}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "NPuzzleConsole", "NPuzzleConsole\NPuzzleConsole.csproj", "{202AE2BB-A1CD-42F1-8ABD-4BF8F865A1BB}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution

NPuzzleConsole/ConsoleUI.cs

@@ -49,10 +49,14 @@ namespace NPuzzle.ConsoleUI
         private void ProcessInput()
         {
             Console.Write("Enter command: ");
-            var line = Console.ReadLine();
+            var line = Console.ReadLine().ToUpper();
+
+            if("X" == line)
+                Environment.Exit(0);
+
             try
             {
-                _field.Move(Int32.Parse(line));
+                _field.Move(int.Parse(line));
             }
             catch (FormatException)
             {

NPuzzleConsole/Program.cs

 using System;
 using NPuzzle.Core;
+using NPuzzleCore.Core;
 
 namespace NPuzzle
 {

NPuzzleCore/Core/Field.cs

@@ -18,9 +18,10 @@ namespace NPuzzle.Core
         public Field(int rowCount, int columnCount)
         {
             RowCount = rowCount;
-            ColumnCount = columnCount;
+            ColumnCount = columnCount; 
             _tiles = new Tile[rowCount, columnCount];
             Initialize();
+            Shuffle();
         }
 
         public Tile GetTile(int row, int column)
@@ -53,6 +54,19 @@ namespace NPuzzle.Core
             _emptyTileCoordinate = new Coordinate {Row = RowCount - 1, Column = ColumnCount - 1};
         }
 
+        private void Shuffle()
+        {
+            var random = new Random();
+            for (var i = 0; i < 100 * RowCount * ColumnCount; i++)
+            {
+                Move(random.Next(RowCount * ColumnCount - 1) + 1);
+            }
+        }
+
+        /// <summary>
+        /// Moves a tile.
+        /// </summary>
+        /// <param name="tile">tile to move</param>
         public void Move(int tile)
         {
             if (_emptyTileCoordinate.Column > 0 &&
@@ -77,6 +91,10 @@ namespace NPuzzle.Core
             _emptyTileCoordinate.Column = column;
         }
 
+        /// <summary>
+        ///
+        /// </summary>
+        /// <returns>true if the field is solved</returns>
         public bool IsSolved()
         {
             var value = 1;