Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

iOS Protocols in Swift Protocol Basics Protocols With Methods

Posted by Chyngyzkan Samatov
Chyngyzkan Samatov
1,731 Points

HELP ME PLEASE

WHY IT'S NOT WORKING ?

protocols.swift 
// Declare protocol here
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(0,0,0,0)
  }

  func switchColor(_ color: Color) {
    Color.hsb(123.3, 223.3, 323.3, 423.3)
  }
}

1 Answer

Jhoan Arango
Jhoan Arango
14,575 Points
Jhoan Arango
Jhoan Arango
14,575 Points

Hello,

The challenge is asking you to set the WifiLamp object to a "new color".

So for example: 

// **** Step 1
// If I was to make an instance of Wifi Lamp, I would do so like this

// Instance
let myWifiLamp = WifiLamp()

// **** Step 2
// If I wanted to change the color of the lamp I would have to call the "switchColor" method

 myWifLamp.switchColor(Color.rgb(123.3, 223.3, 323.3, 423.3))

// OR

let myNewColor = Color.hsb(22.0, 22.0, 22.0, 22.00)
wifiLamp.switchColor(myNewColor)

So in order to implement this method what shall we do? 

  func switchColor(_ color: Color) {
    self.color = color
  }

Hope this helps you a bit.

Chyngyzkan Samatov
Chyngyzkan Samatov
1,731 Points

I got it Thanks a lot man! May God bless u million times! Appreciate it!)