From 4dabbfcba79ea764e8af88a2d2c27e6d6f745719 Mon Sep 17 00:00:00 2001
From: ianmcnerlin <paddymcnerlin@hotmail.com>
Date: Sun, 30 Aug 2026 17:34:09 +0100
Subject: [PATCH] Add MathGame console app

---
 MathGame.paddymcn/MathGame.csproj    | 10 ++++
 MathGame.paddymcn/MathGameSession.cs | 88 +++++++++++++++++++++++++++
 MathGame.paddymcn/Program.cs         | 90 ++++++++++++++++++++++++++++
 3 files changed, 188 insertions(+)
 create mode 100644 MathGame.paddymcn/MathGame.csproj
 create mode 100644 MathGame.paddymcn/MathGameSession.cs
 create mode 100644 MathGame.paddymcn/Program.cs

diff --git a/MathGame.paddymcn/MathGame.csproj b/MathGame.paddymcn/MathGame.csproj
new file mode 100644
index 00000000..6c1dc922
--- /dev/null
+++ b/MathGame.paddymcn/MathGame.csproj
@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <OutputType>Exe</OutputType>
+        <TargetFramework>net10.0</TargetFramework>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <Nullable>enable</Nullable>
+    </PropertyGroup>
+
+</Project>
diff --git a/MathGame.paddymcn/MathGameSession.cs b/MathGame.paddymcn/MathGameSession.cs
new file mode 100644
index 00000000..4d1e50d0
--- /dev/null
+++ b/MathGame.paddymcn/MathGameSession.cs
@@ -0,0 +1,88 @@
+namespace MathGame;
+
+public class MathGameSession
+{
+    public int Score { get; set; } = 0;
+    public int Answer { get; set; } = 0;
+    public int GameNumber { get; set; } = 0;
+    
+    public List<string> GameHistory = new List<string>();
+
+    // Constructor
+    public MathGameSession()
+    {
+        
+    }
+
+    // Method
+    public string AskQuestion(string type)
+    {
+        int rand1;
+        int rand2;
+        switch (type)
+        {
+            case "addition":
+                rand1 = randomNumber(0, 100);
+                rand2 = randomNumber(0, 100);
+                Answer = rand1 + rand2;
+                return $"What is {rand1} + {rand2}";
+                break;
+
+            case "substraction":
+                rand1 = randomNumber(0, 100);
+                rand2 = randomNumber(0, 100);
+                Answer = rand1 - rand2;
+                return $"What is {rand1} - {rand2}";
+                break;
+
+            case "multiplication":
+                rand1 = randomNumber(0, 100);
+                rand2 = randomNumber(0, 100);
+                Answer = rand1 * rand2;
+                return $"What is {rand1} * {rand2}";
+                break;
+
+            case "division":
+                int divisor = randomNumber(1, 10);     
+                int quotient = randomNumber(1, 10);     
+                int dividend = divisor * quotient;      
+                Answer = quotient;
+                return $"What is {dividend} / {divisor}";
+                break;
+            default:
+                Console.WriteLine("No type returned.");
+                break;
+        }
+        return type;
+    }
+
+    public void CheckAnswer()
+    {
+        Console.WriteLine("Enter your answer:");
+        string input = Console.ReadLine();
+        int userAnswer;
+        
+        while (!int.TryParse(input, out userAnswer))
+        {
+            Console.WriteLine("That's not a valid number. Please enter your answer again:");
+            input = Console.ReadLine();
+        }
+
+        if (userAnswer == Answer)
+        {
+            Console.WriteLine("Answer is correct.");
+            Score++;
+        }
+        else
+        {
+            Console.WriteLine("Wrong answer.");
+        }
+    }
+    int randomNumber(int min, int max)
+    {
+        var random = new Random();
+        var rNum = random.Next(min, max);
+        return rNum;
+    }
+}
+    
\ No newline at end of file
diff --git a/MathGame.paddymcn/Program.cs b/MathGame.paddymcn/Program.cs
new file mode 100644
index 00000000..8d27bbb6
--- /dev/null
+++ b/MathGame.paddymcn/Program.cs
@@ -0,0 +1,90 @@
+using MathGame;
+MathGameSession gameSession = new();
+DisplayMenu();
+void DisplayMenu()
+{
+  int userAnswer=0;
+  string menuChoice = "";
+  while (menuChoice != "6")
+  {
+    Console.WriteLine("Menu\n====");
+    Console.WriteLine("1. Addition");
+    Console.WriteLine("2. Subtraction");
+    Console.WriteLine("3. Multiplication");
+    Console.WriteLine("4. Division");
+    Console.WriteLine("5. View History");
+    Console.WriteLine("6. Exit");
+    menuChoice = Console.ReadLine();
+    MenuChoice(menuChoice);
+  }
+  void MenuChoice(string menuChoice)
+  {
+
+    switch (menuChoice)
+    {
+      case "1":
+        // Addition game
+        for (int i = 0; i < 5; i++)
+        {
+          Console.WriteLine(gameSession.AskQuestion("addition"));
+          gameSession.CheckAnswer();
+        }
+        gameSession.GameNumber++;
+        gameSession.GameHistory.Add($"Game: {gameSession.GameNumber};Score: {gameSession.Score}");
+        gameSession.Score = 0;
+        break;
+
+      case "2":
+        // Subtraction game
+        for (int i = 0; i < 5; i++)
+        {
+          Console.WriteLine(gameSession.AskQuestion("substraction"));
+          gameSession.CheckAnswer();
+        }
+        gameSession.GameNumber++;
+        gameSession.GameHistory.Add($"Game: {gameSession.GameNumber};Score: {gameSession.Score}");
+        gameSession.Score = 0;
+        break;
+
+      case "3":
+        // Multiplication game
+        for (int i = 0; i < 5; i++)
+        {
+          Console.WriteLine(gameSession.AskQuestion("multiplication"));
+          gameSession.CheckAnswer();
+        }
+        gameSession.GameNumber++;
+        gameSession.GameHistory.Add($"Game: {gameSession.GameNumber};Score: {gameSession.Score}");
+        gameSession.Score = 0;
+        break;
+
+      case "4":
+        // Division 
+        for (int i = 0; i < 5; i++)
+        {
+          Console.WriteLine(gameSession.AskQuestion("division"));
+          gameSession.CheckAnswer();
+        }
+        gameSession.GameNumber++;
+        gameSession.GameHistory.Add($"Game: {gameSession.GameNumber};Score: {gameSession.Score}");
+        gameSession.Score = 0;
+        break;
+
+      case "5":
+        foreach (var list in gameSession.GameHistory)
+        {
+          Console.WriteLine(list);
+        }
+        break;
+
+      case "6":
+        Console.WriteLine("Goodbye!");
+        break;
+
+      default:
+        Console.WriteLine("Invalid choice, try again.");
+        break;
+    }
+  }
+}
+