const gameResult = (seed) => {
    const nBits = 52; // number of most significant bits to use
    // 1. r = 52 most significant bits
    seed = seed.slice(0, nBits / 4);
    const r = parseInt(seed, 16);
    // 2. X = r / 2^52
    let X = r / Math.pow(2, nBits); // uniformly distributed in [0; 1)
    X = parseFloat(X.toPrecision(9));
    // 3. X = 99 / (1-X)
    X = 99 / (1 - X);
    // 4. return max(trunc(X), 100)
    const result = Math.floor(X);
    return Math.max(1, result / 100);
  };

  const gameResult = (seed, salt) => {
    const nBits = 52; // number of most significant bits to use

    // 1. HMAC_SHA256(message=seed, key=salt)  
    const hmac = CryptoJS.HmacSHA256(CryptoJS.enc.Hex.parse(seed), salt);
    seed = hmac.toString(CryptoJS.enc.Hex);

    // 2. r = 52 most significant bits
    seed = seed.slice(0, nBits / 4);
    const r = parseInt(seed, 16);

    // 3. X = r / 2^52
    let X = r / Math.pow(2, nBits); // uniformly distributed in [0; 1)
    X = parseFloat(X.toPrecision(9));

    // 4. X = 99 / (1-X)
    X = 99 / (1 - X);

    // 5. return max(trunc(X), 100)
    const result = Math.floor(X);
    return Math.max(1, result / 100);
  };