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colormatch.r

REBOL [ Title: "Color Match" Date: 21-May-2001 Version: 1.0.0 File: %colormatch.r Author: "Scot M. Sutherland" Purpose: {To illustrate the three basic principles of educational objects. 1.^-objective: a target outcome, task or pattern. 2.^-experience: an interface that allows students to build relationships to the concept. 3. evaluation: integrated data collector and organizer for evaluation. This EO was first introduced in 1987 to students building scripts to animate graphics over video. } Email: %ssutherl--westmont--edu library: [ level: 'intermediate platform: none type: none domain: [GUI game] tested-under: none support: none license: none see-also: none ] ] points: 101 color: "" rank?: func [score /local rank] [ rank: "Drop Out!" if (points > 79) [rank: "Nerd"] if (points > 84) [rank: "Geek"] if (points > 89) [rank: "Expert"] if (points > 94) [rank: "ACE!"] return rank ] match?: func [target [tuple!] test [tuple!] /local match] [ match: false if ((test >= (target - 3.3.3)) and (test <= (target + 3.3.3))) [ match: true ] return match ] seed?: func [/local seed] [ seed: (to-integer (pick (parse form now/time ":") 3)) * (to-integer (pick (parse form now/time ":") 2)) return seed ] random-color: func [][ for x 0 length? color 1 [remove color] loop 2 [append color join form (random ((seed? // 120) + 135)) "."] append color form (random ((seed? // 120) + 135)) return to-tuple color print color ] text-val: func [value] [ value: form (to-integer ((1 - value) * 255)) return value ] interface: [ backdrop mint vh1 "Color Match" gold feel [over: func [f a o] [ prompt/text: either a ["Educational Object"] ["Move sliders...Click Test."] show prompt] ] at 10x55 prompt: txt 146 "Move sliders...Click Test." white at 33x78 button 94x104 at 35x80 target: box 90x50 "Target" random-color feel [over: func [f a o] [ prompt/text: either a ["Starts over..."] ["Move sliders...Click Test."] show prompt ] ] [ points: 101 target/color: random-color test/color: black redval/text: grnval/text: bluval/text: "0" score/text: "100" redslide/color: grnslide/color: bluslide/color: black redslide/data: grnslide/data: bluslide/data: 1.0 test/text: "Test" target/text: "Target" show [target test redval grnval bluval score redslide grnslide bluslide] ] at 35x130 test: box 90x50 "Test" black feel [over: func [f a o] [ prompt/text: either a ["Test for match..."] ["Move sliders...Click Test."] show prompt ] ] [ test/color: redslide/color + grnslide/color + bluslide/color score/text: points: points - 1 if match? target/color test/color [ test/text: "MATCH!" target/text: rank? points ] show [target test score] ] at 30x190 redval: vh4 "0" 30 center at 65x190 grnval: vh4 "0" 30 center at 100x190 bluval: vh4 "0" 30 center at 37x220 redslide: slider 15x130 black feel [over: func [f a o] [ prompt/text: either a ["Red slider..."] ["Move sliders...Click Test."] show prompt] ] [redslide/color: to-tuple join (redval/text: text-val value) ".0.0" show [redval redslide]] at 72x220 grnslide: slider 15x130 black feel [over: func [f a o] [ prompt/text: either a ["Green slider..."] ["Move sliders...Click Test."] show prompt] ] [grnslide/color: to-tuple join "0." join (grnval/text: text-val value) ".0" show [grnval grnslide]] at 107x220 bluslide: slider 15x130 black feel [over: func [f a o] [ prompt/text: either a ["Blue slider..."] ["Move sliders...Click Test."] show prompt] ] [bluslide/color: to-tuple join "0.0." (bluval/text: text-val value) show [bluval bluslide]] at 55x360 vh2 "Score" gold feel [over: func [f a o] [ prompt/text: either a ["Minus 1 for each Test"] ["Move sliders...Click Test."] show prompt] ] at 57x380 score: title "100" white feel [over: func [f a o] [ prompt/text: either a ["ACE Expert Geek or Nerd!"] ["Move sliders...Click Test."] show prompt] ] redslide/data: bluslide/data: grnslide/data: 1.0 ] view layout interface
halt ;; to terminate script if DO'ne from webpage
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  • (ssutherl:westmont:edu)