common.coffee

   1 # this file is used by the client and server.
   2
   3 # work around lack of module system in the browser:
   4 if exports?
   5         my_exports = exports
   6 else
   7         window.game_model = {}
   8         my_exports = window.game_model
   9
  10 class GameState
  11         constructor: (agent) ->
  12                 @agent = agent
  13                 @hooks = {}
  14                 @cards = []
  15         on: (event, callback) ->
  16                 unless @hooks[event]?
  17                         @hooks[event] = []
  18                 @hooks[event].push callback
  19         trigger: (event, args...) ->
  20                 return unless @hooks[event]?
  21                 for callback in @hooks[event]
  22                         callback.apply this, args
  23         move: (agent, card, x, y, z, pile) ->
  24                 # FIXME what to do on error?
  25                 return unless @cards[card]?
  26
  27                 @cards[card].x = x
  28                 @cards[card].y = y
  29                 @cards[card].z = z
  30                 if pile?
  31                         @cards[card].pile = pile
  32                 else if @cards[card].pile?
  33                         delete @cards[card].pile
  34
  35                 @trigger 'move', agent, card, x, y, z, pile
  36
  37         mark: (agent, card, state) ->
  38                 # FIXME what to do on error?
  39                 return unless @cards[card]?
  40                 @cards[card].marked = state
  41                 @trigger 'mark', agent, card, state
  42
  43         flip: (agent, card, state) ->
  44                 # FIXME what to do on error?
  45                 return unless @cards[card]?
  46                 @cards[card].flipped = state
  47                 @trigger 'flip', agent, card, state
  48
  49         # FIXME implement set_pile(pile, card_order_array)
  50
  51         set_cards: (agent, cards) ->
  52                 @cards = []
  53                 for card in cards
  54                         card.number = @cards.length unless card.number
  55                         card.z = @cards.length unless card.z
  56                         @cards.push card
  57                 @trigger 'set_cards', agent, @cards
  58
  59         send_state: (agent) ->
  60                 @trigger 'send_state', agent
  61
  62         process_messages: (messages) ->
  63                 unless typeof messages is 'array' or typeof messages is 'object'
  64                         # FIXME what to do on error?
  65                         return typeof messages
  66
  67                 for message in messages
  68                         unless message instanceof Array and message[0]? and message[0] in ['move', 'mark', 'flip', 'set_cards', 'send_state']
  69                                 # FIXME what to do on error?
  70                                 return 2
  71                         method = message.shift()
  72                         @[method].apply this, message
  73                 return
  74
  75
  76 my_exports.new = (agent) -> new GameState agent