Initial Commit (w/ Ch1Duck first implementation)

.gitignore

@@ -0,0 +1,5 @@
+bin/
+obj/
+/packages/
+riderModule.iml
+/_ReSharper.Caches/

.idea/.idea.HeadFirstDesignPatterns/.idea/.gitignore

@@ -0,0 +1,13 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Rider ignored files
+/contentModel.xml
+/modules.xml
+/.idea.HeadFirstDesignPatterns.iml
+/projectSettingsUpdater.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

.idea/.idea.HeadFirstDesignPatterns/.idea/encodings.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding" addBOMForNewFiles="with BOM under Windows, with no BOM otherwise" />
+</project>

.idea/.idea.HeadFirstDesignPatterns/.idea/indexLayout.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="UserContentModel">
+    <attachedFolders />
+    <explicitIncludes />
+    <explicitExcludes />
+  </component>
+</project>

.idea/.idea.HeadFirstDesignPatterns/.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

Ch1Duck/Ch1Duck.csproj

@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <OutputType>Exe</OutputType>
+        <TargetFramework>net9.0</TargetFramework>
+        <LangVersion>latestmajor</LangVersion>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <Nullable>enable</Nullable>
+    </PropertyGroup>
+
+</Project>

Ch1Duck/Duck.cs

@@ -0,0 +1,19 @@
+namespace Ch1Duck;
+
+public abstract class Duck(IFlyBehaviour flyBehaviour, IQuackBehaviour quackBehaviour) {
+    public abstract void Display();
+
+    public void PerformFly() {
+        flyBehaviour.Fly();
+    }
+    
+    public void PerformQuack() {
+        quackBehaviour.Quack();
+    }
+}
+
+public class MallardDuck() : Duck(new FlyWithWings(), new NormalQuack()) {
+    public override void Display() {
+        Console.WriteLine("I'm a real Mallard duck");
+    }
+}

Ch1Duck/Fly.cs

@@ -0,0 +1,17 @@
+namespace Ch1Duck;
+
+public interface IFlyBehaviour {
+    void Fly();
+}
+
+public class FlyWithWings: IFlyBehaviour {
+    public void Fly() {
+        Console.WriteLine("I'm flying!");
+    }
+}
+
+public class FlyNoWay: IFlyBehaviour {
+    public void Fly() {
+        Console.WriteLine("I can't fly");
+    }
+}

Ch1Duck/Program.cs

@@ -0,0 +1,7 @@
+// See https://aka.ms/new-console-template for more information
+
+using Ch1Duck;
+
+Duck mallard = new MallardDuck();
+mallard.PerformQuack();
+mallard.PerformFly();

Ch1Duck/Quack.cs

@@ -0,0 +1,23 @@
+namespace Ch1Duck;
+
+public interface IQuackBehaviour {
+    void Quack();
+}
+
+public class NormalQuack: IQuackBehaviour {
+    public void Quack() {
+        Console.WriteLine("Quack");
+    }
+}
+
+public class MuteQuack : IQuackBehaviour {
+    public void Quack() {
+        Console.WriteLine("<< Silence >>");
+    }
+}
+
+public class Squeak: IQuackBehaviour {
+    public void Quack() {
+        Console.WriteLine("Squeak");
+    }
+}

HeadFirstDesignPatterns.sln

@@ -0,0 +1,16 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Ch1Duck", "Ch1Duck\Ch1Duck.csproj", "{941002B3-4C8C-4A9A-9071-7FD27E9E5C9F}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{941002B3-4C8C-4A9A-9071-7FD27E9E5C9F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{941002B3-4C8C-4A9A-9071-7FD27E9E5C9F}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{941002B3-4C8C-4A9A-9071-7FD27E9E5C9F}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{941002B3-4C8C-4A9A-9071-7FD27E9E5C9F}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+EndGlobal