mirror of
https://github.com/stronk-dev/RandomChad.git
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100 lines
3.5 KiB
JavaScript
100 lines
3.5 KiB
JavaScript
const config = require("config");
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const parameters = config.get("generate");
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// Pick random item from an array
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const pickRandomArrayEntry = (array) =>
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array[Math.floor(Math.random() * array.length)];
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exports.pickRandomArrayEntry = pickRandomArrayEntry;
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// Generate random number between x and y
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exports.randomNumberBetween = (min, max) =>
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Math.floor(Math.random() * (max - min + 1) + min);
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// Random attribute picker
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exports.pickRandomAttributes = (attributes) => {
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// Decimal accuracy, if probabilities have the lowest 0.01 then 100 is enough, for 0.001 1000 is needed
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const probabilityDecimals = 3;
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// Remap the trait so it has a 'lottery ticket box' based on probs
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const attributeLottery = attributes.map(({ values, ...attribute }) => ({
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// Attribute meta stays the same
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...attribute,
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// Values are reduced from objects with probabilities to an array with elements
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values: values.reduce((acc, val) => {
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const { probability, value } = val;
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// Map probabilities to a flat array of items
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const amountToAdd = 10 * probabilityDecimals * probability;
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for (let i = 0; i < amountToAdd; i++) acc.push(value);
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return acc;
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}, []),
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}));
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// Pick a random element from the lottery box array items
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return attributeLottery.map(({ values, ...attribute }) => ({
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// Attribute meta stays the same
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...attribute,
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// Select random entry from array
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value: pickRandomArrayEntry(values),
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}));
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};
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// Define all Captain Chad attributes
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exports.globalAttributes = [
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{
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trait_type: "helmet",
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values: [
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{ value: "classic", probability: parameters.helmet.classic },
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{ value: "racer", probability: parameters.helmet.racer },
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{ value: "punk", probability: parameters.helmet.punk },
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{ value: "knight", probability: parameters.helmet.knight },
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{ value: "geek", probability: parameters.helmet.geek },
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],
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},
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{
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trait_type: "patch",
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values: [
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{ value: "livepeer", probability: parameters.patch.livepeer },
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{ value: "nimbus", probability: parameters.patch.livepeer },
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{ value: "teku", probability: parameters.patch.livepeer },
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{ value: "lighthouse", probability: parameters.patch.livepeer },
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{ value: "prysm", probability: parameters.patch.livepeer },
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{ value: "rocketpool", probability: parameters.patch.livepeer },
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],
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},
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{
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trait_type: "backpack",
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values: [
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{ value: "yes", probability: parameters.backpack.yes },
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{ value: "no", probability: parameters.backpack.no },
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],
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},
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{
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trait_type: "panel",
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values: [
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{ value: "yes", probability: parameters.panel.yes },
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{ value: "no", probability: parameters.panel.no },
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],
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},
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{
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trait_type: "background",
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values: [
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{ value: "planets", probability: parameters.background.planets },
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{ value: "system", probability: parameters.background.system },
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{ value: "playful", probability: parameters.background.playful },
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{ value: "moon", probability: parameters.background.moon },
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{ value: "galaxy", probability: parameters.background.galaxy },
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{ value: "chip", probability: parameters.background.chip },
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],
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},
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{
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trait_type: "background complexity",
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values: [
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{ value: 1, probability: parameters.backgroundComplexity.complex },
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{ value: 2, probability: parameters.backgroundComplexity.med },
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{ value: 3, probability: parameters.backgroundComplexity.low },
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{ value: 4, probability: parameters.backgroundComplexity.basic },
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],
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},
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];
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