Day 11 100 Days of SwiftUI – Hacking with Swift. Checkpoint 6

Checkpoint6.swift

import Cocoa

///Create a struct to store information about a car
///Include its model, number of seats, and current gear.

struct Car {
    let model: String
    let numberOfSeats: Int
    private(set) var currentGear: Int {
        willSet {
            print("\(model) gear was \(currentGear)")
        }
        didSet {
            print("\(model) current gear is \(currentGear)")
        }
    }
    
    mutating func increaseGear(by: Int) {
        if currentGear + by > 10 {
            print("The car dosent have that many gears")
        } else {
            currentGear += by
        }
        print("\(model) current gear is \(currentGear)")
    }
    
    mutating func decreaseGear(by: Int) {
        if currentGear - by <= 0 {
            print("Cant go below 0")
        } else {
            currentGear -= by
        }
        print("\(model) current gear is \(currentGear)")
    }
}

var car1 = Car(model: "Honda HR-V", numberOfSeats: 5, currentGear: 5) //WORKS
//car1.model = "Test" !Cannot assign to property: 'model' is a 'let' constant
//car1.currentGear += 2 !Left side of mutating operator isn't mutable: 'currentGear' setter is inaccessible due to private(set). Can only read value
car1.increaseGear(by: 1) //WORKS!
car1.decreaseGear(by: 1)
car1.decreaseGear(by: 3)
car1.decreaseGear(by: 3)