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Start your free trialisaac brakha
6,781 PointsWhat should i do different
In the editor you've been provided with two classes - Point to represent a coordinate point and Machine. The machine has a move method that doesn't do anything because most machines are motionless.
Your task is to subclass Machine and create a new class named Robot. In the Robot class, override the move method and provide the following implementation. If you enter the string "Up" the y coordinate of the Robot's location increases by 1. "Down" decreases it by 1. If you enter "Left", the x coordinate of the location property decreases by 1 while "Right" increases it by 1.
Note: If you use a switch statement you can use the break statement in the default clause to exit the current iteration.
class Point {
var x: Int
var y: Int
init(x: Int, y: Int){
self.x = x
self.y = y
}
}
class Machine {
var location: Point
init() {
self.location = Point(x: 0, y: 0)
}
func move(direction: String) {
print("Do nothing! Im a machine!")
}
}
// Enter your code below
class Robot: Machine {
override init() {
super.init()
func move(direction: String) { switch move {
case "Up": self.location.y + 1
case "Down": self.location.y - 1
case "Left": self.location.x - 1
case "Right": self.location.x + 1
default: break
}
}
}
}
1 Answer
Reed Carson
8,306 PointsYou need to switch on the parameter "direction", not the function "move" itself.
The function takes in a string value and you are calling the switch on that value, executing different code based on different strings passed in.