     #)
 
   initKeyboard : ->
+
+    # TODO: (from Georg) I do not get the difference between Keyboard
+    # and KeyboardNoLoop. KeyboardNoLoop implies that pressing the key
+    # longer will not trigger the callback several times, but this is
+    # false, apparently. I moved the space to KeyboardNoLoop, because
+    # it allows more accuracy.
     
     @input.keyboard = new Input.Keyboard(
 


      "n" : =>
        @createNewTree()
    )

  # for more buttons look at Input.Gamepad

      "s"             : => @moveY( @model.User.Configuration.moveValue)
      "a"             : => @moveX(-@model.User.Configuration.moveValue)
      "d"             : => @moveX( @model.User.Configuration.moveValue)
      #"space"         : => @moveZ( @model.User.Configuration.moveValue)
      #"shift + space" : => @moveZ(-@model.User.Configuration.moveValue)

      #Rotate in distance
      "left"          : => @moveX(-@model.User.Configuration.moveValue)
