Swift

Sergi Beltran
Sergi Beltran
18,493 Points

Challenge Objected Oriented Swift with "init" method

Challenge link: https://teamtreehouse.com/library/objectoriented-swift-2/complex-data-structures/custom-initializers

Hi everyone, I am trying to solve this challenge coding the following:

struct RGBColor {
  let red: Double
  let green: Double
  let blue: Double
  let alpha: Double

  let description: String

  // Add your code below
  init() {
    red = 86.0
    green = 191.0
    blue = 131.0
    alpha = 1.0
    description = "red: \(red), green: \(green), blue: \(blue), alpha: \(alpha)"
  }
}

I tried several ways to implement this without any success. What is wrong?

1 Answer

Jorge Velasco
Jorge Velasco
4,844 Points

You're trying to assign default values to the Struct's constants. The challenge is to create an init method that allows the user to pass values to the various Object's properties. It even gives an example of if you create a new instance of RGBColor it would print a certain way. Try the code bellow:

struct RGBColor {
    let red: Double
    let green: Double
    let blue: Double
    let alpha: Double

    let description: String

    // Add your code below
    init(red: Double, green: Double, blue: Double, alpha: Double) {
        self.red = red
        self.green = green
        self.blue = blue
        self.alpha = alpha
        self.description = "red: \(red), green: \(green), blue: \(blue), alpha: \(alpha)"
    }
}

let newColor = RGBColor(red: 86.0, green: 191.0, blue: 131.0, alpha: 1.0) // Example by teamtreehouse challenge