IceCream.scala

// OBJECTS --------------------------------------

object iceCream {
  val name = "Sundae"
  val inCone = false
  val numCherries = 1

  def inGlass: Boolean =
    !inCone

  def hasRaspberrySauce: Boolean =
    if (inCone) numCherries >= 2 else numCherries % 2 == 0
}

iceCream.name

case class IceCream(name: String, inCone: Boolean, numCherries: Int) {
  def inGlass: Boolean =
    !inCone

  def hasRaspberrySauce: Boolean =
    if (inCone) numCherries >= 2 else numCherries % 2 == 0
}

val foo1 = new IceCream("Magnum", false, 0)
val foo2 = new IceCream("Magnum", false, 10)
val bar = new IceCream("Cornetto", true, 1)

foo1 == foo2
foo1.copy(name = "Bob")

object priceCalculator {
  def price(iceCream: IceCream, eatingIn: Boolean): Int = {
    val basePrice: Int =
      (if (iceCream.inGlass) 100 else 50) +
        (20 * iceCream.numCherries) +
        (if (iceCream.hasRaspberrySauce) 80 else 0)

    val taxMultiplier: Double =
      (if (eatingIn) 1.2 else 1.0).toInt

    (basePrice * taxMultiplier).toInt
  }
}

priceCalculator.price(foo1, true)
priceCalculator.price(foo2, true)