Skip to content

Instantly share code, notes, and snippets.

@shakked
Created December 17, 2019 20:02
Show Gist options
  • Star 0 You must be signed in to star a gist
  • Fork 0 You must be signed in to fork a gist
  • Save shakked/0db52e760e77000f1951ceb3ce7311a9 to your computer and use it in GitHub Desktop.
Save shakked/0db52e760e77000f1951ceb3ce7311a9 to your computer and use it in GitHub Desktop.
this doesn't actually executre
// This declare how a door works in general
Object Door {
// isOpen is like state, it's a variable tied to the object,
// every time you make a new instance of the object, it has its
// own state
instance var isOpen: Bool
// this is called when you make a door, I set it to be open by default
initialize() {
this.isOpen = true
}
// This prints the state of the door
function printMessage() {
if (this.isOpen) {
print("I'm open")
} else {
print("I'm closed")
}
}
// this opens the door
function openDoor() {
this.isOpen = true
}
// this closes the door
function closeDoor() {
this.isOpen = false;
}
}
// You can make many instances of the same object, each has its own state
var blueDoor = Door()
var redDoor = Door()
blueDoor.printMessage() // prints "I'm open"
// I close the blue door, the state variable of isOpen is updated to be false
blueDoor.closeDoor();
blueDoor.printMessage() // prints "I'm closed"
// Note, nothing has happened to red door
redDoor.printMessage() // prints "I'm open"
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment