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 trialMarko Sabec
27,828 PointsThe code does not work.
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!")
}
}
class Robot: Machine {
init(x: Int, y: Int) {
super.init(x:x, y:y)
}
override func move(direction: String) {
if direction == "Up" {
y += 1
}
if direction == "Down" {
y -= 1
}
if direction == "Left" {
x += 1
}
if direction == "Right" {
x -= 1
}
}
}
1 Answer
Marko Sabec
27,828 Pointsswift_lint.swift:28:15: error: extra argument 'x' in call super.init(x:x, y:y) ^ ~ swift_lint.swift:32:7: error: use of unresolved identifier 'y' y += 1 ^ swift_lint.swift:36:7: error: use of unresolved identifier 'y' y -= 1 ^ swift_lint.swift:40:7: error: use of unresolved identifier 'x' x += 1 ^ swift_lint.swift:44:7: error: use of unresolved identifier 'x' x -= 1 ^
Martin Wildfeuer
Courses Plus Student 11,071 PointsMartin Wildfeuer
Courses Plus Student 11,071 PointsHey there! What error messages are you seeing? Please paste your code into an Xcode playground, it will give you valuable information on what the problem is.