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378 changes: 378 additions & 0 deletions MathGame/Program.cs
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Original file line number Diff line number Diff line change
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//Variables
using System.Diagnostics;

var quiz = new List<(string Text, string Answer)>();

//Main program
Console.WriteLine("Welcome to the Math Game!\n");

PlayGame();

//Main Methods
void PlayGame()
{
int difficulty = 0;

while (difficulty != 6)
{

Console.WriteLine();
Console.WriteLine("Starting the math game, please select a difficulty level:");
Console.WriteLine("1. Easy, 1 minute per question");
Console.WriteLine("2. Medium, 30 seconds per question");
Console.WriteLine("3. Hard, 10 seconds per question");
Console.WriteLine("4. Expert, random questions and 5 seconds per question");
Console.WriteLine("5. View all the results");
Console.WriteLine("6. Exit");


difficulty = GetDifficultyLevel();

Console.Clear();

GetDifficultyDescription(difficulty);

Console.WriteLine();

switch (difficulty)
{
case 1:
case 2:
case 3:
case 4:
StartGame(difficulty);
break;
case 5:
//View all the results.
ViewResults();
break;
case 6:
Console.Clear();
Console.WriteLine("Thank you for playing the Math Game!");
break;

}

Console.WriteLine();
}

}

void StartGame(int difficulty)
{

int operation = 0;
int min = 0;
int max = 101;
int timer = (difficulty == 1 ? 60 : difficulty == 2 ? 30 : difficulty == 3 ? 10 : 5);

string operationSymbol = "";


if (difficulty < 4)
{
Console.WriteLine($"You have selected difficulty level {difficulty}. You will have {(difficulty == 1 ? 60 : difficulty == 2 ? 30 : 10)} seconds to answer each question.");

operation = ChooseOperation();

GetOperationDescription(operation);

Console.WriteLine();

//Since the operation is selected, we can get the symbol for it

try
{
operationSymbol = GetOperationSymbol(operation);
}
catch (ArgumentException ex)
{
Console.WriteLine($"An error occurred: {ex.Message}");
return;
}

}


//Generate each question, just one at a time
for (int i = 0; i < 5; i++)
{

bool validNumber = false;
int[] randomNumbers = new int[2];

//Diffculty 4 is random, so we need to randomly select an operation for each question
if (difficulty == 4)
{
operation = new Random().Next(1, 5); // Randomly select an operation between 1 and 4
operationSymbol = GetOperationSymbol(operation);
}


//If the operation is division, we need to make sure that the division is possible and returns a whole number
randomNumbers = GenerateRandomNumber(min, max);

if (operation == 4)
{
while (!validNumber)
{
randomNumbers = GenerateRandomNumber(min, max);

if (IsDivisionPossible(randomNumbers[0], randomNumbers[1]))
{
validNumber = true;
}


}
}



int number1 = randomNumbers[0];
int number2 = randomNumbers[1];

int result = operation switch
{
1 => number1 + number2,
2 => number1 - number2,
3 => number1 * number2,
4 => number2 != 0 ? number1 / number2 : 0, // Avoid division by zero
_ => throw new ArgumentException("Invalid operation"),
};

Console.WriteLine($"Question {i + 1}: {number1} {operationSymbol} {number2} = ? (You have {timer} seconds)");
int userAnswer;

string input = ReadLineWithTimeout(timer);

if (input == null)
{
Console.WriteLine($"Time's up! The correct answer is {result}.");
quiz.Add(($"Question {i + 1}: {number1} {operationSymbol} {number2}. Your Answer: (no answer)",
$"Incorrect (Timeout), Correct Answer: {result}"));
}
else if (int.TryParse(input, out userAnswer))
{
if (userAnswer == result)
{
Console.WriteLine("Correct!");
}
else
{
Console.WriteLine($"Incorrect. The correct answer is {result}.");
}

quiz.Add(($"Question {i + 1}: {number1} {operationSymbol} {number2}. Your Answer: {userAnswer}",
userAnswer == result ? "Correct" : $"Incorrect, Correct Answer: {result}"));
}
else
{
Console.WriteLine("Invalid input. Please enter a number.");
quiz.Add(($"Question {i + 1}: {number1} {operationSymbol} {number2}. Your Answer: {input}",
$"Incorrect (Invalid input), Correct Answer: {result}"));
}

}


}

//Helpers
int GetDifficultyLevel()
{
int difficulty;
while (true)
{
Console.Write("Enter your choice (1, 2, 3, 4, or 5): ");
string input = Console.ReadLine();
if (int.TryParse(input, out difficulty) && (difficulty >= 1 && difficulty <= 5))
{
break;
}
else
{
Console.WriteLine("Invalid input. Please enter a number between 1 and 5.");
}
}
return difficulty;
}

void GetDifficultyDescription(int difficulty)
{
switch (difficulty)
{
case 1:
Console.WriteLine("You selected Easy difficulty.");
break;
case 2:
Console.WriteLine("You selected Medium difficulty.");
break;
case 3:
Console.WriteLine("You selected Hard difficulty.");
break;
case 4:
Console.WriteLine("You selected Expert difficulty.");
break;
case 5:
Console.WriteLine("You selected to view all results.");
break;
}
}

int ChooseOperation()
{
Console.WriteLine("Please select an operation:");
Console.WriteLine("1. Addition");
Console.WriteLine("2. Subtraction");
Console.WriteLine("3. Multiplication");
Console.WriteLine("4. Division");

int operation;
while (true)
{
Console.Write("Enter your choice (1, 2, 3, or 4): ");
string input = Console.ReadLine();
if (int.TryParse(input, out operation) && (operation >= 1 && operation <= 4))
{
break;
}
else
{
Console.WriteLine("Invalid input. Please enter a number between 1 and 4.");
}
}
return operation;
}

void GetOperationDescription(int operation)
{
switch (operation)
{
case 1:
Console.WriteLine("You selected Addition.");
break;
case 2:
Console.WriteLine("You selected Subtraction.");
break;
case 3:
Console.WriteLine("You selected Multiplication.");
break;
case 4:
Console.WriteLine("You selected Division.");
break;
}
}

//View results
void ViewResults()
{


if(quiz.Count > 0)
{
Console.WriteLine("Results:");
int quizNumber = 1;

foreach (var item in quiz)
{
if (item.Text.Contains("Question 1:"))
{
Console.WriteLine();
Console.WriteLine("Quiz #" + quizNumber);
quizNumber++;
}
Console.WriteLine($"{item.Text} - {item.Answer}");
}
}
else
{
Console.WriteLine("You haven't take a quiz yet.");
}


Console.WriteLine();

}

//Generates a random number between the specified min and max values
int[] GenerateRandomNumber(int min, int max)
{

Random number = new Random();

int number1 = number.Next(min, max);
int number2 = number.Next(min, max);

return new int[] {number1, number2};
}

//Returns the operation symbol based on the selected operation
string GetOperationSymbol(int operation)
{
return operation switch
{
1 => "+",
2 => "-",
3 => "*",
4 => "/",
_ => throw new ArgumentException("Invalid operation"),
};
}


//Check if the division is possible and returns a whole number
bool IsDivisionPossible(int number1, int number2)
{
double result = (double)number1 / number2;

if(result % 1 == 0)
{
return true;
}
else
{
return false;
}
}

//Timer, this method was done by IA
string ReadLineWithTimeout(int timeoutSeconds)
{
var input = new System.Text.StringBuilder();
var stopwatch = Stopwatch.StartNew();
var timeout = TimeSpan.FromSeconds(timeoutSeconds);

while (stopwatch.Elapsed < timeout)
{
if (Console.KeyAvailable)
{
var key = Console.ReadKey(intercept: true); // true = don't echo automatically

if (key.Key == ConsoleKey.Enter)
{
Console.WriteLine();
return input.ToString();
}
else if (key.Key == ConsoleKey.Backspace)
{
if (input.Length > 0)
{
input.Remove(input.Length - 1, 1);
Console.Write("\b \b"); // erase last char visually
}
}
else if (!char.IsControl(key.KeyChar))
{
input.Append(key.KeyChar);
Console.Write(key.KeyChar); // manually echo since intercept:true suppresses it
}
}
else
{
Thread.Sleep(50); // small delay to avoid busy-waiting
}
}

return null; // timed out, no dangling task left behind
}
10 changes: 10 additions & 0 deletions MathGame/SamuelCabeza.MathGame.csproj
View file
Open in desktop
Original file line number Diff line number Diff line change
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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>
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