REBOL [ title: "Balls" date: 2010-05-21 file: %balls.r author: "Endo" version: 1.0.0 purpose: "Fun for begginers. Cute balls moving around. Give it a try you will like it." Library: [ level: 'begginer platform: none type: 'fun domain: [graphics animation] tested-under: none license: public-domain see-also: none ] ] give-me-ball: func [pos color] [ compose [ fill-pen (color) circle (pos) 30 fill-pen white circle (pos - 14x5) 8 fill-pen black circle (pos - 12x4) 3 fill-pen white circle (pos - 0x5) 9 fill-pen black circle (pos - 2x6) 3 ] ] move-it: does [ draw-block: copy [] forskip balls 2 [ append draw-block give-me-ball first balls second balls ] compose/deep [ draw [ (draw-block) ] ] ] random/seed now balls: [ 150x150 red 160x60 green 180x80 blue 180x120 yellow 190x40 purple 180x180 maroon 130x190 brown 180x200 gray ] range: [-1 0 1] window: layout [ backcolor white bx: box 450x300 snow rate 60 feel [ engage: func [f action e] [ if action = 'time [ bx/effect: move-it forskip balls 2 [ change balls add first balls as-pair random/only range random/only range ] show bx ] ] ] ] view window