-------------------------------- -- @module AutoPolygon -- @parent_module cc -------------------------------- -- create an AutoPolygon and initialize it with an image file
-- the image must be a 32bit PNG for current version 3.7
-- param filename a path to image file, e.g., "scene1/monster.png".
-- return an AutoPolygon object; -- @function [parent=#AutoPolygon] AutoPolygon -- @param self -- @param #string filename -- @return AutoPolygon#AutoPolygon self (return value: cc.AutoPolygon) return nil