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Julien Schmitt
2,334 PointsHow to access the move function?
Trying to access the move function to see if the direction works but it's not working.
Anyone can give me a hand on this one?
Thanks,
Julien
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) {
switch direction {
case .Up: location.y += 1
case .Down: location.y -= 1
case .Right: location.x += 1
case .Left: location.x -= 1
}
}
}
1 Answer
Kyler Smith
10,110 PointsThe method is an instance method, so you need to create an instance of Robot() in order to use any functions inside the Robot() class.
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) {
switch direction {
case .Up: location.y += 1
case .Down: location.y -= 1
case .Right: location.x += 1
case .Left: location.x -= 1
}
}
}
// testing the move method
var newRobot = Robot() // location: (x = 0, y = 0)
newRobot.move(Direction.Up)
newRobot.location // location: (x = 0, y = 1)