雀魂氪金计算器

majsoul.js

var blessed = require("blessed"),
  contrib = require("blessed-contrib"),
  screen = blessed.screen({ fullUnicode: true });

function chouka(charReq, stuffReq) {
  let char = new Set();
  let stuff = new Set();
  let count = 0;

  const isEnd = () =>
    (charReq - char.size) * 100 + (stuffReq - stuff.size) * 50 <= count;

  while (!isEnd()) {
    count++;
    const rand = Math.random();
    if (rand < 0.59 * 0.05) {
      char.add(Math.ceil(Math.random() * 4));
    } else if (Math.random() < 0.49 * 0.15 + 0.59 * 0.05) {
      stuff.add(Math.ceil(Math.random() * 5));
    }
  }

  return count;
}

let emulTimes = 1000000;
let totlalCount = 0;
let countDensity = {};
for (let i = 0; i < emulTimes; i++) {
  const count = chouka(4, 5);
  totlalCount += count;
  const rangeEnd = Math.ceil(count / 10);
  countDensity[rangeEnd] = countDensity[rangeEnd] || 0;
  countDensity[rangeEnd]++;
}

const avgDraw = Math.ceil((totlalCount / emulTimes) * 100) / 100;
const avg10Draw = Math.ceil((avgDraw / 10) * 100) / 100;
const avgCost = Math.ceil((avgDraw / 36) * 648);

var bar = contrib.bar({
  label: [
    `模拟100w次氪到联动角色和物品全出为止，十连次数的分布图`,
    `平均需要${avgDraw}抽，${avg10Draw}次十连，${avgCost}RMB(不考虑首充)`,
    `[648一单/计算了天井]`,
  ].join("\n"),
  barWidth: 2,
  barSpacing: 2,
  height: "60%",
  xOffset: 0,
  maxHeight: Math.max(...Object.values(countDensity)) / 0.9,
});
screen.append(bar);
bar.setData({
  titles: Object.keys(countDensity),
  data: Object.values(countDensity),
});

screen.render();