       @x
       @y
       @radius
-      @bodyColor || 'black'
+      color || 'black'
     )
   drag: ->
   drawCircle: ( x, y, radius, color ) -> @drawArc x, y, radius, color, 0, TAU

  stationary: -> !( @velocity[0] || @velocity[1] )
  move: ->
  ctx: -> @context ?= @universe.ctx
  draw: -> @drawBody()
  outline: (color) -> @outlined = color
  drawBody: ->
    if @outlined
      @drawCircle(
        @x

    genes[k] = v for k, v of base
    genes[k] = v for k, v of ext
    genes
  draw: (color=@bodyColor) ->
    super(color)
    @drawHunger()
  drawHunger: -> # show emptiness of belly
    h = @health()
