Prototyping GameObject-/Behavior-Relationship

gistfile1.coffee

class Behavior
  constructor: (descriptor) ->
    mixedice [@, @::], new EventMap()
 
    @type = 'Behavior'
    @name = "#{@type}-#{Date.now()}"
 
    @children = {}

    @parent = null
 
    descriptor.call @
 
    @on 'update', (dt) =>
      for key, value of @children
        value.update dt
      null
 
  addBehavior: (behavior) ->
    @children[behavior.name] = behavior
    behavior.parent = @
 
class GameObject
  constructor: (descriptor) ->
    mixedice [@, @::], new EventMap()
 
    @type = 'GameObject'
    @name = "#{@type}-#{Date.now()}"
 
    @children = {}

    @parent = null
 
    descriptor.call @
 
    @on 'update', (dt) =>
      for key, value of @children
        value.update dt
      null
 
  addGameObject: (gameObject) ->
    @children[gameObject.name] = gameObject
    gameObject.parent = @
 
  addBehavior: (behavior) ->
    @children[behavior.name] = behavior
    behavior.parent = @

class Scene
  constructor: (descriptor) ->
    mixedice [@, @::], new EventMap()
 
    @type = 'Scene'
    @name = "#{@type}-#{Date.now()}"
 
    @children = {}

    @parent = null
 
    descriptor.call @
 
    @on 'update', (dt) =>
      for key, value of @children
        value.update dt
      null

  addGameObject: (gameObject) ->
    @children[gameObject.name] = gameObject
    gameObject.parent = @