ronin/examples/basics/spire.lisp

23 lines
349 B
Common Lisp

; this demo shows how to use the mouse events to draw make a simple drawing tool.
;
(clear)
(def frame
(get-frame))
;
(def gradient-line
(line frame:c 0 frame:c frame:h))
;
(defn draw-circle
(e)
(
(stroke
(circle e:x e:y e:d)
(gradient gradient-line
("black" "#72dec2")))))
;
(on "mouse-move" draw-circle)