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Start your free trialChad Kusuno
6,789 Pointsswitch direction { case Direction.left: Point(x: -1, y: 0) I'm stuck on this exercise. Having trouble with +1
switch direction { case Direction.left: Point(x: -1, y: 0) case Direction.right: Point(x: 1, y: 0) case Direction.up: Point(x: 0, y: 1) case Direction.down: Point(x: 0, y: -1) }
I'm stuck. Having trouble visualizing the command to make the Point class move in. above is what I have but I know it's not right
class Point {
var x: Int
var y: Int
init(x: Int, y: Int) {
self.x = x
self.y = y
}
}
enum Direction {
case left
case right
case up
case down
}
class Robot {
var location: Point
init() {
self.location = Point(x: 0, y: 0)
}
func move(_ direction: Direction) {
// Enter your code below
switch direction {
case Direction.left: Point(x: -1, y: 0)
case Direction.right: Point(x: 1, y: 0)
case Direction.up: Point(x: 0, y: 1)
case Direction.down: Point(x: 0, y: -1)
}
}
}
1 Answer
KRIS NIKOLAISEN
54,971 PointsSome hints:
- Instead of setting a coordinate to 1 or -1 you will want to move relative to the current location by adding or subtracting 1
- The current location of the robot is stored in variable
location
- Since
location
is a Point you can access the x and y coordinates aslocation.x
andlocation.y
Chad Kusuno
6,789 PointsChad Kusuno
6,789 PointsKris, thank you for the help. I finally got it. The hints were perfect. You rock.