 
     @animations       = []
     @currentAnimation = null
+
+
+  # Return the name of this instance's entity class as a string
+  # ex: `(new EvilNinja).class() => 'EvilNinja'`
+  class: -> @constructor.name
 
 
   # Apply gravitational effects any directional changes each frame, and resolve any



  setAnimation: (name) ->
    @currentAnimation = @animations[name] or fail("#{@constructor.name}#setAnimation", "Couldn't find animation with name #{name}")


  clearAnimation: ->

  #
  constructor: (opts={}) ->
    group    = opts.group || @constructor.group
    @group   = group or fail("#{@class()}#new", "entity must have a group")
    @scene   = opts.scene
    @solid   = if opts.solid?   then opts.solid   else true
    @gravity = if opts.gravity? then opts.gravity else true
