anchor: love.touch.getPosition
  Gets the current position of the specified touch-press, in pixels.
  x, y = love.touch.getPosition( id )
  id light userdata The identifier of the touch-press. Use love.touch.getTouches, love.touchpressed, or love.touchmoved to obtain touch id values.
  x number The position along the x-axis of the touch-press inside the window, in pixels.
  y number The position along the y-axis of the touch-press inside the window, in pixels.