Update prototype examples

Author: nemanjarogic

src/CreationalPatterns/Prototype/PrototypeLibrary/ColorRegistryExample/Color.cs

@@ -26,8 +26,7 @@ public void Customize(int red, int green, int blue)
 
     public IColorPrototype Clone()
     {
-        Console.WriteLine($"Cloning color RGB: {Red},{Green},{Blue}");
-
-        return MemberwiseClone() as IColorPrototype;
+        Console.WriteLine($"\nCloning color RGB: {Red},{Green},{Blue}");
+        return (MemberwiseClone() as IColorPrototype)!;
     }
-}
+}

src/CreationalPatterns/Prototype/PrototypeLibrary/ColorRegistryExample/ColorRegistry.cs

@@ -4,11 +4,21 @@ namespace PrototypeLibrary.ColorRegistryExample;
 
 public class ColorRegistry
 {
-    private Dictionary<string, IColorPrototype> _colors = new Dictionary<string, IColorPrototype>();
+    private readonly Dictionary<string, IColorPrototype> _colors = new();
 
     public IColorPrototype this[string key]
     {
-        get { return _colors[key]; }
-        set { _colors[key] = value; }
+        get => _colors[key];
+        set => _colors[key] = value;
     }
-}
+
+    public void List()
+    {
+        Console.WriteLine("Available colors in the registry...");
+
+        foreach (var color in _colors)
+        {
+            Console.WriteLine($"Name: {color.Key}");
+        }
+    }
+}

src/CreationalPatterns/Prototype/PrototypeLibrary/ColorRegistryExample/ColorRegistryExecutor.cs

@@ -8,20 +8,23 @@ public static void Execute()
     {
         ConsoleExtension.WriteSeparator("Color registry example");
 
-        var registry = new ColorRegistry();
-
-        // Initialize registry with standard colors
-        registry["red"] = new Color(255, 0, 0);
-        registry["green"] = new Color(0, 255, 0);
-        registry["blue"] = new Color(0, 0, 255);
-
-        // Clone red color
-        var clonedColor = registry["red"].Clone() as Color;
+        // Initialize registry with standard colors.
+        var registry = new ColorRegistry
+        {
+            ["red"] = new Color(255, 0, 0),
+            ["green"] = new Color(0, 255, 0),
+            ["blue"] = new Color(0, 0, 255)
+        };
+        registry.List();
 
+        // Clone red color and store it in the registry.
+        var clonedColor = (registry["red"].Clone() as Color)!;
         clonedColor.Customize(clonedColor.Red, clonedColor.Green, 33);
         registry["custom"] = clonedColor;
+        registry.List();
 
-        // Clone custom color
-        var secondClonedColor = registry["custom"].Clone() as Color;
+        // Clone custom color without storing it in the registry.
+        _ = (registry["custom"].Clone() as Color)!;
+        registry.List();
     }
-}
+}

src/CreationalPatterns/Prototype/PrototypeLibrary/ColorRegistryExample/Common/IColorPrototype.cs

@@ -3,9 +3,9 @@
 /// <summary>
 /// The Prototype interface declares the cloning methods.
 /// In most cases, it’s a single Clone method.
-/// Instead of manually defining interface, we can use <see cref="System.ICloneable"/>.
+/// Instead of manually defining interface, we can use <see cref="ICloneable"/>.
 /// </summary>
 public interface IColorPrototype
 {
     IColorPrototype Clone();
-}
+}

src/CreationalPatterns/Prototype/PrototypeLibrary/ComplexUnstableObjectExample/ComplexUnstableObject.cs

@@ -30,8 +30,5 @@ internal ComplexUnstableObject(string a, int c, char d, string e, string f)
     {
     }
 
-    public object Clone()
-    {
-        return MemberwiseClone();
-    }
-}
+    public object Clone() => MemberwiseClone();
+}

src/CreationalPatterns/Prototype/PrototypeLibrary/ComplexUnstableObjectExample/ComplexUnstableObjectExecutor.cs

@@ -11,7 +11,7 @@ public static void Execute()
         var complicatedObject = new ComplexUnstableObject("a", 'c', "e");
 
         // Clients from different assembly can't call constructor
-        // because it's internal,but they can call Clone.
-        var complicatedObject2 = complicatedObject.Clone();
+        // because it's internal, but they can call Clone.
+        var unused = complicatedObject.Clone();
     }
-}
+}

src/CreationalPatterns/Prototype/PrototypeLibrary/DeepCloneExample/Extensions/SystemExtension.cs

@@ -9,4 +9,4 @@ public static T DeepClone<T>(this T source)
         var serialized = JsonConvert.SerializeObject(source);
         return JsonConvert.DeserializeObject<T>(serialized);
     }
-}
+}

src/CreationalPatterns/Prototype/PrototypeLibrary/DeepCloneExample/Models/MobilePhone.cs

@@ -4,22 +4,17 @@ namespace PrototypeLibrary.DeepCloneExample.Models;
 
 public class MobilePhone
 {
-    public string Manufacturer { get; set; }
-    public string Model { get; set; }
-    public OperatingSystem OperatingSystem { get; set; }
+    public string Manufacturer { get; set; } = string.Empty;
+    public string Model { get; set; } = string.Empty;
+    public OperatingSystem OperatingSystem { get; set; } = new();
 
-    public void PrintDetails()
-    {
+    public void PrintDetails() =>
         Console.WriteLine(
             $"\nManufacturer: {Manufacturer}" +
             $"\nModel: {Model}" +
             $"\nOperating system: {OperatingSystem.Name}" +
             $"\nOS version: {OperatingSystem.Version}" +
             $"\nOS description: {OperatingSystem.Description}");
-    }
 
-    public MobilePhone Clone()
-    {
-        return this.DeepClone();
-    }
-}
+    public MobilePhone Clone() => this.DeepClone();
+}

src/CreationalPatterns/Prototype/PrototypeLibrary/DeepCloneExample/Models/OperatingSystem.cs

@@ -2,7 +2,7 @@
 
 public class OperatingSystem
 {
-    public string Name { get; set; }
-    public string Version { get; set; }
-    public string Description { get; set; }
-}
+    public string Name { get; set; } = string.Empty;
+    public string Version { get; set; } = string.Empty;
+    public string Description { get; set; } = string.Empty;
+}

src/CreationalPatterns/Prototype/PrototypeLibrary/LogicPuzzleExample/LogicPuzzle.cs

@@ -72,8 +72,5 @@ public void PrintState()
         Console.WriteLine($"Move count: {_moveCount}");
     }
 
-    public object Clone()
-    {
-        return MemberwiseClone();
-    }
-}
+    public object Clone() => MemberwiseClone();
+}