private void CheckAnswer()
{
// Hide the "press the enter key" text
promptLabel.Hide();
try
{
// Evaluate answer
if (float.Parse(answerText.Text).Equals(operation.Perform(factor1, factor2)))
{
// Correct answer
TemporaryTitleColor(MetroColorStyle.Green);
correct++;
}
else
{
// Incorrect answer
TemporaryTitleColor(MetroColorStyle.Red);
}
// Ask next question or exit
AskQuestion();
}
catch
{
// Respond to an invalid input
FilthyMessage.Show("That's not a real number!");
}
}
private void Start()
{
// Pre-game starting logic
string username = usernameText.Text;
int questions = (int)questionsNumeric.Value;
List <Operation> operations = GetOperations();
if (username.Equals(""))
{
// Name not set
FilthyMessage.Show("You need to type a name!");
}
else
{
// Start game
Hide();
FilthyGame game = new FilthyGame(username, questions, operations);
game.ShowDialog();
// Return to menu
Show();
Activate();
}
}
private void AskQuestion()
{
// Check how many questions have already been answered out of desired total
if (question >= questions)
{
// Notify of game end and close
FilthyMessage.Show("Well done! You got " + correct + " out of " + questions + " questions correct.");
Close();
}
// Next question
question++;
Random rand = new Random();
// Set label text and invalidate to enforce redraw
answerText.Text = "";
Text = "Question " + question;
Invalidate();
// Generate factors for new question, ensuring the answer is not decimal (43 / 52 = 0.8269230769230769, for instance)
operation = operations[rand.Next(operations.Count)];
int factorMinimum = operation.FactorMinimum;
int factorMaximum = operation.FactorMaximum;
float answer = 0;
do // Do this stuff and repeat if the condition below is met
{
// Generate factors and store in type-instance scope variables
factor1 = rand.Next(factorMinimum, factorMaximum);
factor2 = rand.Next(factorMinimum, factorMaximum);
answer = operation.Perform(factor1, factor2); // Use a method to apply the operation rather than a switch or similar. This is nice.
} while (answer % 1 != 0); // Remainder when divided by 1 greater than zero will cause this loop to repeat until a non-decimal answer is found.
// Show the question
questionLabel.Text = factor1 + " " + operation.Identifier + " " + factor2;
}
