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Project Finished #642

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6f2f1d7
Project Finished
Ruksan12 Jan 28, 2026
5915f96
Errors fixed
Ruksan12 Jan 28, 2026
0626db6
Bug Fixes and Input validation
Ruksan12 Feb 5, 2026
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127 changes: 127 additions & 0 deletions GameEngine.cs
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namespace MathGame
{
internal class GameEngine
{ internal void Addition()
{
Random random = new Random();
var score = 0;

for (int i = 0; i < 5; i++)
{
var num1 = random.Next(1, 10);
var num2 = random.Next(1, 10);
Console.WriteLine(num1 + " + " + num2 + " = ?");
int result;
while (!int.TryParse(Console.ReadLine(), out result))
{
Console.WriteLine("Invalid input. Please enter a number.");
Console.WriteLine(num1 + " + " + num2 + " = ?");
}
if (result == num1 + num2)
{
Console.WriteLine("Correct!");
score++;

}
else
{
Console.WriteLine("Incorrect! The correct answer is " + (num1 + num2));
}
}
Helpers.ShowScore(score);
Helpers.AddScore(score, "Addition");


}
internal void Subtraction()
{
Random random = new Random();
var score = 0;

for (int i = 0; i < 5; i++)
{
var num1 = random.Next(1, 10);
var num2 = random.Next(1, 10);
Console.WriteLine(num1 + " - " + num2 + " = ?");
int result;
while (!int.TryParse(Console.ReadLine(), out result))
{
Console.WriteLine("Invalid input. Please enter a number.");
Console.WriteLine(num1 + " - " + num2 + " = ?");
}
if (result == num1 - num2)
{
Console.WriteLine("Correct!");
score++;

}
else
{
Console.WriteLine("Incorrect! The correct answer is " + (num1 - num2));
}
}
Helpers.ShowScore(score);
Helpers.AddScore(score, "Subtraction");
}
internal void Multiplication()
{
Random random = new Random();
var score = 0;

for (int i = 0; i < 5; i++)
{
var num1 = random.Next(1, 10);
var num2 = random.Next(1, 10);
Console.WriteLine(num1 + " * " + num2 + " = ?");
int result;
while (!int.TryParse(Console.ReadLine(), out result))
{
Console.WriteLine("Invalid input. Please enter a number.");
Console.WriteLine(num1 + " * " + num2 + " = ?");
}
if (result == num1 * num2)
{
Console.WriteLine("Correct!");
score++;

}
else
{
Console.WriteLine("Incorrect! The correct answer is " + (num1 * num2));
}
}
Helpers.ShowScore(score);
Helpers.AddScore(score, "Multiplication");
}

internal void Division()
{
var score = 0;


for (int i = 0; i < 5; i++)
{
int[] nums = Helpers.GetNumbers();
Console.WriteLine(nums[0] + " / " + nums[1] + " = ?");
int result;
while (!int.TryParse(Console.ReadLine(), out result))
{
Console.WriteLine("Invalid input. Please enter a number.");
Console.WriteLine(nums[0] + " / " + nums[1] + " = ?");
}
if (result == nums[0] / nums[1])
{
Console.WriteLine("Correct!");
score++;

}
else
{
Console.WriteLine("Incorrect! The correct answer is " + (nums[0] / nums[1]));
}
}
Helpers.ShowScore(score);
Helpers.AddScore(score, "Division");
}
}
}
53 changes: 53 additions & 0 deletions Helpers.cs
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namespace MathGame
{
internal class Helpers
{
static List<string> scores = new();
internal static void ShowScore(int score)
{
Console.WriteLine("Your total score is: " + score + " out of 5");
}
internal static void ViewScores()
{
Console.WriteLine("\n--- Previous Scores ---");

if (scores.Count == 0)
{
Console.WriteLine("No games played yet!");
}
else
{
for (int i = 0; i < scores.Count; i++)
{
Console.WriteLine($"{i + 1}. {scores[i]}");
}
}

Console.WriteLine("-----------------------");
}
internal static int[] GetNumbers()
{
Random random = new Random();
int num1 = random.Next(1, 99);
int num2 = random.Next(1, 99);
var result = new int[2];

while (num1 % num2 != 0)
{
num1 = random.Next(1, 99);
num2 = random.Next(1, 99);
}
result[0] = num1;
result[1] = num2;

return result;
}

internal static void AddScore(int score, string game)
{
scores.Add($"{game} - {score}/5 - {DateTime.Now:g}");
}

}
}
10 changes: 10 additions & 0 deletions 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>
3 changes: 3 additions & 0 deletions MathGame.slnx
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<Solution>
<Project Path="MathGame.csproj" />
</Solution>
43 changes: 43 additions & 0 deletions Menu.cs
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namespace MathGame
{
internal class Menu
{
internal void ShowMenu(string name)
{
Console.WriteLine("\nHello " + name + "! Welcome to the Math Quiz!");
bool exit = true;
GameEngine gameEngine = new GameEngine();
while (exit)
{

Console.WriteLine("Choose the operation you want to practice: ");
Console.WriteLine("1. Addition");
Console.WriteLine("2. Subtraction");
Console.WriteLine("3. Multiplication");
Console.WriteLine("4. Division");
Console.WriteLine("5. View Scores");
Console.WriteLine("6. Exit");
if (int.TryParse(Console.ReadLine(), out int choice))
{
switch (choice)
{
case 1: gameEngine.Addition(); break;
case 2: gameEngine.Subtraction(); break;
case 3: gameEngine.Multiplication(); break;
case 4: gameEngine.Division(); break;
case 5: Helpers.ViewScores(); break;
case 6:
Console.WriteLine("Goodbye!");
exit = false;
break;
default: Console.WriteLine("Invalid choice!"); break;
}
}
else
{
Console.WriteLine("Invalid input!");
}
}
}
}
}
10 changes: 10 additions & 0 deletions Program.cs
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using MathGame;

Console.WriteLine("Enter your Name: ");
string name = Console.ReadLine();
Menu menu = new Menu();
menu.ShowMenu(name);