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 trialMichel Ortega
2,279 Pointswhere should I init location?
Im confused about where to init a <local> property of a sub-class, in this case <location>. Am I supposed to init it inside the override init method? SOS xoxo
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
override init(x: Int, y: Int){
super.init(x: x, y: y, location: Point)
self.location = location
self.x = x
self.y = y
}
func move(direction: String) {
print("Do nothing! Im a machine!")
}
}
// Enter your code below
class Robot: Machine{
override init(x: Int, y: Int){
super.init(x: x, y: y)
self.x = x
self.y = y
}
override func move(direction: String){
switch direction{
case "Up":
self.y += 1
case "Left":
self.x += 1
default:
break
}
}
}
1 Answer
Drew Butcher
33,160 Pointsyour close... you can remove the
override init(x: Int, y: Int){
super.init(x: x, y: y)
self.x = x
self.y = y
}
you don't need to override the init function of Machine it's cool just the way it is :)
Your override of Machine is looking good just a couple of corrections
override func move(direction: String){
switch direction{
case "Up":
location.y += 1
case "Left":
location.x -= 1
case "Down":
location.y -= 1
case "Right":
location.x += 1
default:
break
}
}
I hope that helps.
Best, Drew