Triviapp

Enjoy awesome Trivia questions.

Getting Setup

To try out the app download the repo and open the Xcode project. Then change the bundle identifier to your domain name.

Customizing the App

To customize the game mechanics you can change how the score is calculated. In the TriviaManager class there is a function that updates the score when the user chooses an answer choice.

public func updateScore(with answer: String) -> Status {
     if(answer == correctAnswer){
         streak += 1
         score += currentTime * streak
         return .correct
     }
     else {
         streak = 1
         return .incorrect
     }
}

In addition there is also way to customize the trivia api. With the Options type you can easily change the settings of the Api and generate a custom URL from that.

/// Creates modifiers to change the game settings.
public enum Category: String, Decodable {
    case art, sports, history
}

public enum Difficulty: String, Decodable {
    case easy, medium, hard
}

public enum Mode: String, Decodable {
    case any, multiple, boolean
}

Note - Some portions of this still need to be implemented.

The Trivia API

This app utilizes the free trivia database, Open Trivia. Which is a collection of trivia questions and answers provided by the internet. The raw trivia has HTML elements in it, so both the questions and answers must be filtered.

There is a standard extension implemented that takes the string value and converts the HTML elements into characters.

extension String {
    var decoded: String {
        let attr = try? NSAttributedString(data: Data(utf8), options: [
            .documentType: NSAttributedString.DocumentType.html,
            .characterEncoding: String.Encoding.utf8.rawValue
        ], documentAttributes: nil)

        return attr?.string ?? self
    }
}

The raw trivia data is decoded when pulled from the API.

public init(from decoder: Decoder) throws {
    let container = try decoder.container(keyedBy: CodingKeys.self)
    question = try container.decode(String.self, forKey: .question).decoded
}

Contributing

Feel free to contribute! This is still a very basic app, but already has a lot of the necessary functionality.