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vivek d
iOS Development Techdegree Student 1,596 Pointswhy is this not right?
why is it not compiling?
class Point {
var x: Int
var y: Int
init(x: Int, y: Int) {
self.x = x
self.y = y
}
}
class Machine: Point {
var location: Point
init() {
self.location = Point(x: 0, y: 0)
super.init(x:0 , y:0)
}
func move(_ direction: String) {
print("Do nothing! I am a machine!")
}
}
// Enter your code below
class Robot: Machine {
override func move(_ direction: String) {
switch direction {
case "Up" :
location.y += 1
case "Down" :
location.y -= 1
case "left" :
location.x -= 1
case "Right":
location.x += 1
default :
break
}
}
}
let rob1 = Robot()
rob1.move(_ : "Up")
1 Answer
Matthew Long
28,407 PointsYour Robot class is correct except one of the cases in your switch statement is looking at left instead of Left. Just change that and you're good.
class Robot: Machine {
override func move(_ direction: String) {
switch direction {
case "Up": location.y += 1
case "Down": location.y -= 1
case "Left": location.x -= 1
case "Right": location.x += 1
default: break
}
}
}