anchor: Body:getLocalPoints
  Transforms multiple points from world coordinates to local coordinates.
  x1, y1, x2, y2, ... = Body:getLocalPoints( x1, y1, x2, y2, ... )
  x1 number (Argument) The x position of the first point.
  y1 number (Argument) The y position of the first point.
  x2 number (Argument) The x position of the second point.
  y2 number (Argument) The y position of the second point.
  ... number (Argument) You can continue passing x and y position of the points.
  x1 number (Result) The transformed x position of the first point.
  y1 number (Result) The transformed y position of the first point.
  x2 number (Result) The transformed x position of the second point.
  y2 number (Result) The transformed y position of the second point.
  ... number (Result) Additional transformed x and y position of the points.