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dice-roller.r

Rebol [ Title: "Dice roller generator" File: %dice-roller.r Author: "Massimiliano Vessi" Date: 2010-12-31 Version: 1.0.1 email: %maxint--tiscali--it Purpose: {From an idea of Adrew Martin a dice rolling generator for role-playing game like D&d or D20.} Library: [ level: 'beginner platform: 'all type: [tool demo ] domain: [all] tested-under: [view 2.7.7.3.1 Windows Linux ] support: %maxint--tiscali--it license: 'gpl see-also: none ] ] random/seed now roll: func [ formula [string!] /local temp temp2 result test ] [ ;test if good formula: test: parse formula [integer! "d" integer!] either test [ temp: parse formula "d" temp2: reduce [(to-integer temp/1) (to-integer temp/2)] result: 0 loop temp2/1 [ result: result + (random temp2/2) ] result][ "Invalid formula" ] ] view/title layout [ vtext {Type your formula for dice roll (like 2d6) and push "Roll" button.} across vlab "Formula:" aa: field [ insert bb/text ( reform [aa/text ":^/" tab (roll aa/text) newline ] ) show bb ] btn "Roll" [ insert bb/text ( reform [aa/text ":^/" tab (roll aa/text) newline ] ) show bb ] return bb: area ] "Dice roller generator"
halt ;; to terminate script if DO'ne from webpage
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