ニューパルサーsp3 トロフィー出現率 ゲーム数別

const params = {
  2: {
    bronze: 0.547,
  },
  3: {
    bronze: 0.522,
    silver: 0.076,
  },
  4: {
    bronze: 0.48,
    silver: 0.042,
    gold: 0.077,
  },
  6: {
    bronze: 0.461,
    silver: 0.092,
    gold: 0.051,
    rainbow: 0.028,
  },
};

const shaping = (value, base) => Math.round(value * base) / base;

const result = Object.keys(params).reduce((acc, settei) => {
  const start = 1000;
  const end = 7000;

  const target = params[settei];

  acc[settei] = {};

  const keys = Object.keys(params[settei]);
  keys.map(key => {
    acc[settei][key] = {};

    for (let i = start; i <= end; i += 1000) {
      acc[settei][key][i] = shaping(
        1 - ((1 - target[key]) ** (1 / 2000)) ** i,
        1000
      );
    }
  });

  if (keys.length === 1) {
    return acc;
  }

  const sum = keys.reduce((acc, k) => {
    acc += target[k];
    return acc;
  }, 0);

  acc[settei]['sum'] = {};
  for (let i = start; i <= end; i += 1000) {
    acc[settei]['sum'][i] = shaping(1 - ((1 - sum) ** (1 / 2000)) ** i, 1000);
  }
  return acc;
}, {});

console.log(result);