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18,493 PointsChallenge 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
13,773 PointsYou'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