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/* eslint-env node */ |
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/*jslint node: true */ |
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'use strict'; |
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let jsonfile = require('jsonfile'); |
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let resources = jsonfile.readFileSync('build/data/resources.json'); |
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let elements = jsonfile.readFileSync('build/data/elements.json'); |
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let numberToElement = {}; |
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for (let element in elements) { |
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numberToElement[elements[element].number] = element; |
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let isotopes = elements[element].isotopes; |
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for (let isotope in isotopes) { |
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if (isotopes[isotope].ratio === 0) { |
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if (!isDecayProduct(isotope) && !isFusionProduct(isotope)) { |
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throw new Error(isotope, 'cannot be obtained.'); |
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} |
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} |
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} |
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} |
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function isDecayProduct(isotope) { |
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for (let key in resources) { |
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let resource = resources[key]; |
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if (resource.decay) { |
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for (let typeKey in resource.decay.decay_types) { |
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let type = resource.decay.decay_types[typeKey]; |
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if (type.reaction.product[isotope]) { |
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return true; |
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} |
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} |
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} |
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} |
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return false; |
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} |
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function isFusionProduct(isotope) { |
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let number = parseInt(isotope, 10); |
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let element = isotope.replace(number, ''); |
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let elementNumber = elements[element].number; |
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for (let i = 1; i < elementNumber; i++) { |
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let elem1 = numberToElement[i]; |
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let elem2 = numberToElement[elementNumber - i]; |
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for (let iso1 in elements[elem1].isotopes) { |
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for (let iso2 in elements[elem2].isotopes) { |
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let num1 = parseInt(iso1, 10); |
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let num2 = parseInt(iso2, 10); |
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if (num1 + num2 === number) { |
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return true; |
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} |
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} |
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} |
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} |
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return false; |
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} |
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