Animal: ->
Animal::move: (meters) ->
  alert this.name + " moved " + meters + "m."

Snake: (name) -> this.name: name
Snake extends Animal
Snake::move: ->
  alert "Slithering..."
  super 5

Horse: (name) -> this.name: name
Horse extends Animal
Horse::move: ->
  alert "Galloping..."
  super 45

sam: new Snake "Sammy the Python"
tom: new Horse "Tommy the Palomino"

sam.move()
tom.move()