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Victor O'Rourke
2,387 PointsGetting this to take value of enum Color as argument
So i am doing this challenge and have tried running this with a switch statement i thought was right and then this maybe right if else. What im a little confused on is how to take the value of color as an argument. The wording on this is tripping me up
// Declare protocol here
protocol ColorSwitchable {
func switchColor (_ color) _> String
if bannanas = Color.rgb(23, 23, 23, 23)
print("bum") else print ("cool")
}
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)
}
}
1 Answer
Nick Frozz
31,289 PointsPart 1/2 of this challenge is asking us to create a protocol named ColorSwitchable; You got it:
protocol ColorSwitchable {
}
Then it requires a func named "switchColor" with an omitted external argument "_", argument named "color" that has a value of "Color" inside of it, so you almost got it but forgot about a value. After 2nd step we're getting:
protocol ColorSwitchable {
func switchColor(_ color: Color)
}
Part 2/2. Asking us to adopt the ColorSwitchable protocol. To conform the protocol we need to use EVERY method and argument that our protocol has. In our case, it's a single function "switchColor". (function always goes before init.) :
class WifiLamp: ColorSwitchable {
let state: LightState
var color: Color
func switchColor(_ color: Color) {
self.color = color //here we are simply setting a color to the new one.
}
init() {
self.state = .on
self.color = .rgb(0,0,0,0)
}
}