;********* look slide used in "worm" "worm_type"
(defun vslide (key s_name n / x y)
(setq x (dimx_tile key))
(setq y (dimy_tile key))
(start_image key)
(fill_image n -5 x y 2)
(slide_image n -5 x y s_name)
(end_image)
)
(defun wdtr (a) (/ (* a pi) 180.0))
(defun wtan (a) (/ (sin a) (cos a)))