387-Shapes.swift

class Shape {
    //Shapes will have a number of sides
    var numberOfSides = 0
    var name: String

    //Constructor
    init(name: String){
        self.name = name
    }

    //Place Holder for Area Functions
    func calcArea() -> Double {}

    //Place Holder for Perimeter function
    func calcPerimeter() -> Double {}

    //A simple Function to return the numberr of sides
    func description() -> String {
         return ("\(name): a Shape with \(numberOfSides) sides")
     }
}
  
class Rectange: Shape {
  //Variables specific to rectangles
  var width = 0.0
  var height = 0.0

  init(width: Double, height: Double){
      //First update Superclass using its init method
      super.init(name: "Rectangle")
      numberOfSides = 4 //And update the number of sides
      //Then Class Specific
      self.width = width
      self.height = height
      }
   
  override func calcArea() -> Double {
      return height*width
   }

   override func calcPerimeter() -> Double {
      return 2*(height+width)
   }
  
}