// https://carrascomolina.com
import Playgrounds

protocol Vehicle {
    // name ist read-only
    var name: String {get}
    var color: String {get set}
}

struct Train: Vehicle {
    var name: String
    var color = "white"
}

struct ICE: Vehicle {
    var name = "ICE"
    var color = "white"
}

struct Bike: Vehicle {
    var name: String
    var color: String
    // newValue ist ein special keyword
    var description: String {
        set { name = newValue }
        get {"A bike called \(name) and it is \(color)." }}
    static let trek = Bike(name: "Trek", color: "red" )
}

#Playground {
    var greeting = "Hallo Playground"
    var bike = Bike.trek
    var train = Train(name:"TGV")
    bike.description
    bike.description = "Mein Rad"
    bike.description
    train
    // write code here
}