pubg_anal.js

const fs = require('fs');

const crateData = JSON.parse(fs.readFileSync('crates-neater.json', 'utf-8'));

function crateWithAny(data) {
	const itemNames = typeof data == 'string' ? Array.from(arguments) : data;
	return crateData.filter(crate => itemNames.reduce((hasItem, item) => hasItem || item in crate, false));
}

const l3cc = crateWithAny('Level 3 Backpack', 'Level 3 Helmet', 'Level 3 Military Vest').length;
const snipercc = crateWithAny('Kar98', 'AWM', 'M24', 'SKS').length;
const boltSnipercc = crateWithAny('Kar98', 'AWM', 'M24').length;
const rareSnipercc = crateWithAny('AWM', 'M24').length;
const badCratecc = crateWithAny('Tommy Gun', 'VSS').length;
console.log(`Crates with Level 3 gear: ${l3cc*100 / crateData.length}%`);
console.log(`Crates with a sniper: ${snipercc*100 / crateData.length}%`);
console.log(`Crates with a bolt-action sniper: ${boltSnipercc*100 / crateData.length}%`);
console.log(`Crates with AWM or M24: ${rareSnipercc*100 / crateData.length}%`);
console.log(`Crates with Tommy Gun or VSS: ${badCratecc*100 / crateData.length}%`);