Example of a usecase + model (pure domain)

gistfile1.coffee

class MemoryGameUseCase
  constructor: ->
    @games = []
    @timeLimit = 60

  playerRequestsStart: =>
    if @knowsHowToPlay()
      @start()
    else
      @teachHowToPlay()

  playerPicksSlot: (slot) =>
    try
      @tryGuessSlot(slot)
    catch error
      @wrongSlot(slot) #...

  tryGuessSlot: (slot) =>
    if @currentBoard().notYetPlayed(slot)
      @currentBoard().play(slot)
      @correctSlot(slot)
      if @isBoardComplete()
        @completedWholeBoard(@currentBoard())

  playerFinishedTutorial: => #...
  knowsHowToPlay: =>         #...
  readyToStart: =>           #empty. aop here..
  teachHowToPlay: =>         #empty. aop here..
  start: =>                  #...
  startTimer: =>             #...
  secondsLeft: =>            #...
  nextSecondElapsed: =>      #...
  generateBoard: =>          #...
  playerGotPoints: (points) => #...
  #...

class Game
  constructor: (@timeLimit, @levels) ->
    @boardGenerator = new BoardGenerator(@levels)

  generateBoard: =>
    @boardGenerator.next()
  #...


class BoardGenerator
  constructor: (@levels) ->
    @pastBoards = []

  next: =>
    level = @nextBoardLevel()
    pattern = @nextBoardPattern(level)
    board = new BoardWithPattern(pattern, level)
    @pastBoards.push board