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Start your free trialLiam Tulit
2,973 PointsSwift 2.0 Protocols Code Challenge
I am really stuck on how to get this to work. An explanation and the answer would be greatly appreciated.
For this task, make WifiLamp adopt the ColorSwitchable protocol. In the implementation of the method, simply set the color of the lamp to the new color.
// Declare protocol here
protocol ColorSwitchable {
func switchColor(color: Color) -> WifiLamp
}
enum LightState {
case On, Off
}
enum Color {
case RGB(Double, Double, Double, Double)
case HSB(Double, Double, Double, Double)
}
class WifiLamp {
let state: LightState
var color: Color
init() {
self.state = .On
self.color = .RGB(0,0,0,0)
}
}
2 Answers
Nils Garland
18,416 PointsYou need to use inheritance from your protocol to you class, I would suggest watching the videos back and understanding it more.
Inheriting looks like this essentially:
class SomeSubclass: SomeSuperclass {
// subclass definition goes here
}
Once you have inherited the protocol you need to set the content to what is required from the question.
ANDREA HEMPHILL
14,484 PointsThis is the answer !!
protocol ColorSwitchable { func switchColor(color: Color) }
enum LightState { case On, Off }
enum Color { case RGB(Double, Double, Double, Double) case HSB(Double, Double, Double, Double) }
class WifiLamp: ColorSwitchable { let state: LightState var color: Color
init() {
self.state = .On
self.color = .RGB(190,60,80,1)
}
func switchColor(color: Color) {
self.color = .RGB(190/255.0, 60/255.0, 90/255.0, 1)
}
}
Liam Tulit
2,973 PointsLiam Tulit
2,973 PointsThank You Nils