Drawable               base class for all drawable stuff

       function(self, x, y, color)

               Constructor

       wrapX(min, max)

              can be called via wrapX(max) or wrapX(min,max)

       wrapY(min, max)

              can be called via wrapY(max) or wrapY(min,max)

       wrap(str, min, max)

              internal wrapper

       set(str, val)

              supercollider style 'set'

       draw()

              not yet implemented