MathGame.FeedMyData

MathGame.FeedMyData/.vscode/launch.json

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+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": ".NET Core Launch (console)",
+            "type": "coreclr",
+            "request": "launch",
+            "preLaunchTask": "build",
+            "program": "${workspaceFolder}/bin/Debug/net10.0/MathGame.dll",
+            "args": [],
+            "cwd": "${workspaceFolder}",
+            "stopAtEntry": false,
+            "console": "integratedTerminal"
+        }
+
+    ]
+}

MathGame.FeedMyData/.vscode/tasks.json

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+{
+	"version": "2.0.0",
+	"tasks": [
+		{
+			"type": "dotnet",
+			"task": "build",
+			"group": "build",
+			"problemMatcher": [],
+			"label": "build"
+		}
+	]
+}

MathGame.FeedMyData/MathGame.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net10.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

MathGame.FeedMyData/Program.cs

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+// Instructions
+// A game that consists of asking the player what's the result of a math question (i.e. 9 x 9 = ?), collecting the input and adding a point in case of a correct answer.
+// A game needs to have at least 5 questions.
+// The divisions should result on INTEGERS ONLY and dividends should go from 0 to 100. Example: Your app shouldn't present the division 7/2 to the user, since it doesn't result in an integer.
+// Users should be presented with a menu to choose an operation
+// You should record previous games in a List and there should be an option in the menu for the user to visualize a history of previous games.
+// You don't need to record results on a database. Once the program is closed the results will be deleted.
+// --- Challenges ----
+// Implement levels of difficulty.
+// Add a timer to track how long the user takes to finish the game.
+// Create a 'Random Game' option where the players will be presented with questions from random operations
+// -------------------------------------------------
+
+using System.Collections.Generic;
+using System.Diagnostics;
+
+class Program
+{
+  static List<string> gamesPlayed = new();
+  static Random rand = new();
+  static int maxQuestions = 5;
+  static int gamesCount = 0;
+  static int totalScore = 0;
+  static int difficulty = 1;
+  static int maxDifficulty = 5;
+  static TimeSpan totalTime = TimeSpan.Zero;
+  static string userInput = "";
+  static string menu = "To start a game, choose a math operation by typing the number associated:\n"
+                    + "\t1. For addition\n"
+                    + "\t2. For substraction\n"
+                    + "\t3. For multiplication\n"
+                    + "\t4. For Division\n"
+                    + "\t5. For a random pick\n"
+                    + "\t6. Change overall difficulty\n"
+                    + "\t7. View Score and game History\n"
+                    + "\tType 'Exit' to quit\n";
+
+
+  static void Main(string[] args)
+  {
+    //Starting flow presenting the menu
+    Console.Clear();
+    Console.WriteLine("--- Math Game ---\n");
+    Console.WriteLine($"Rules: Give the answer of {maxQuestions} Maths operation of your choice. Good luck.");
+    Console.Write(menu);
+
+    // Selecting a menu Item
+    while (userInput != "exit")
+    {
+      Console.WriteLine("");
+      Console.Write("Enter a menu choice : ");
+
+      userInput = Console.ReadLine();
+      if (userInput != null)
+        userInput = userInput.ToLower().Trim();
+
+      if (int.TryParse(userInput, out int menuSelection))
+      {
+        if (menuSelection >= 1 && menuSelection <= 5)
+          MathQuestions(menuSelection, difficulty);
+
+        else if (menuSelection == 6)
+          difficulty = SetDifficulty();
+
+        else if (menuSelection == 7)
+          GamesSummary();
+      }
+    }
+  }
+
+  static void MathQuestions(int operationType, int difficulty)
+  {
+    gamesCount++;
+    Stopwatch timer = new();
+    timer.Restart();
+
+    string header = $"Game number {gamesCount} | Difficulty {difficulty}\n";
+    string gameReview = header;
+    Console.Write(header);
+
+    string userInput = "";
+    int answer = 0;
+    int result = 0;
+    int score = 0;
+
+    // generating the questions and reading user response here
+    for (int i = maxQuestions; i > 0; i--)
+    {
+      string question = "";
+      bool answerReadable = false;
+
+      // Picking a random question if the user selected a random game
+      int currentOperator = operationType;
+      int rollOperator = rand.Next(1, 4);
+      char[] operators = ['+', '-', 'x', '/'];
+
+      if (operationType == 5)
+        currentOperator = rollOperator;
+
+      //numbers scale according to the difficulty
+      int[] numbers = GenerateNumbers(difficulty, currentOperator);
+      int a = numbers[0];
+      int b = numbers[1];
+
+      switch (currentOperator)
+      {
+        case 1:
+          result = a + b;
+          break;
+        case 2:
+          result = a - b;
+          break;
+        case 3:
+          result = a * b;
+          break;
+        case 4:
+          result = a / b;
+          break;
+      }
+
+      question = $"{a} {operators[currentOperator - 1]} {b}\t= ";
+      Console.Write(question);
+
+      // Reading user answer
+      while (!answerReadable)
+      {
+        userInput = Console.ReadLine().Trim();
+        answerReadable = int.TryParse(userInput, out answer);
+      }
+
+      if (answer == result)
+      {
+        gameReview += $"{question}{answer}\t\tcorrect\n";
+        score++;
+      }
+
+      else
+        gameReview += $"{question}{answer}\t\tfalse -> {result}\n";
+    }
+
+    // wraping up all the game info and updating the game summary
+    timer.Stop();
+
+    string scoreMessage = $"You answered {score}/{maxQuestions} questions correctly in {FormatSeconds(timer.Elapsed)}.";
+    Console.WriteLine(scoreMessage);
+
+    gameReview += scoreMessage;
+    gameReview += "\n";
+    gamesPlayed.Add(gameReview);
+    totalTime += timer.Elapsed;
+    totalScore += score;
+  }
+
+  static int[] GenerateNumbers(int difficulty, int operatorType)
+  {
+    // increasing possible number range depending on the maximum difficulty
+    // skiping 0 with the difficulty starting at 1
+    int minRandom = (int)Math.Pow(10, maxDifficulty);
+    int maxRandom = (int)Math.Pow(10, maxDifficulty + 1);
+
+    // using this to scale the random numbers down
+    // if diffulty is level 2/6 then I should reduce the number range from 10^(4+1)
+    int difficultyPower = maxDifficulty + 1 - difficulty;
+    int numberDivider = (int)Math.Pow(10, difficultyPower);
+
+    int a = rand.Next(minRandom, maxRandom);
+    int b = rand.Next(minRandom, maxRandom);
+    int tempNumber = 1;
+
+    // making the level 1 the easiest possible with number ranging from 1 to 9
+    if (difficulty == 1)
+    {
+      a = a / minRandom;
+      b = b / minRandom;
+    }
+
+    else if (difficulty == 2)
+    {
+      a /= numberDivider;
+
+      if (operatorType == 1 || operatorType == 2)
+        b /= numberDivider;
+
+      // Multiply by 10 to have smaller operation 
+      else
+        b /= (numberDivider * 10);
+    }
+
+    // from difficulty 3 scaling up by x10 each number
+    else
+    {
+      if (operatorType == 1 || operatorType == 2)
+      {
+        a /= numberDivider;
+        b /= numberDivider;
+      }
+      // Multiply by 10 to have smaller operation 
+      else
+      {
+        a /= (numberDivider * 10);
+        b /= (numberDivider * 10);
+      }
+    }
+
+    // generating division from multiplication to avoid decimals
+    if (operatorType == 4)
+    {
+      tempNumber = a * b;
+      a = tempNumber;
+    }
+
+    int[] numbers = [a, b];
+    return numbers;
+  }
+
+  static void GamesSummary()
+  {
+    Console.WriteLine($"---------------------");
+    Console.WriteLine($"--- GAMES SUMMARY ---");
+    Console.WriteLine($"---------------------");
+    Console.WriteLine($"You played {gamesCount} game(s).");
+    Console.WriteLine($"You answered {totalScore}/{maxQuestions * gamesCount} questions correctly in {FormatSeconds(totalTime)}.");
+    Console.WriteLine("---------------------");
+
+    foreach (string game in gamesPlayed)
+      Console.WriteLine(game);
+  }
+
+  static int SetDifficulty()
+  {
+    Console.WriteLine($"---------------------------");
+    Console.WriteLine("--- CHANGING DIFFICULTY ---");
+    Console.WriteLine($"---------------------------");
+    Console.WriteLine($"Modifying the difficulty change the range of the numbers used for the calculation.");
+    Console.WriteLine($"The current difficulty is at level {difficulty} / {maxDifficulty}.");
+
+    // Ensuring that the user enter the correct difficulty range
+    string userDifficulty = "na";
+    int newDifficulty = -1;
+
+    while (newDifficulty < 1 || newDifficulty > maxDifficulty)
+    {
+      Console.Write("Enter a difficulty level: ");
+      userDifficulty = Console.ReadLine();
+
+      if (userDifficulty != null)
+        userDifficulty = userDifficulty.ToLower().Trim();
+
+      int.TryParse(userDifficulty, out newDifficulty);
+    }
+
+    Console.WriteLine("The difficulty has been updated.");
+    return newDifficulty;
+  }
+
+  static string FormatSeconds(TimeSpan elapsed)
+  {
+    return $"{elapsed.TotalSeconds:F1} seconds";
+  }
+}