scryptography rugpull

let randomCount = 0;

​

function genTokenData(projectNum)

{

    let data = {};

    let hash = "0x";

    for (var i = 0; i < 64; i++)

    {

        hash += Math.floor(Math.random() * 16).toString(16);

    }

    data.hash = hash;

    data.tokenId = projectNum * 1000000 + Math.floor(Math.random() * 1000);

    return data;

}

​

class Random {

  constructor() {

    this.useA = false;

    let sfc32 = function (uint128Hex) {

      let a = parseInt(uint128Hex.substr(0, 8), 16);

      let b = parseInt(uint128Hex.substr(8, 8), 16);

      let c = parseInt(uint128Hex.substr(16, 8), 16);

      let d = parseInt(uint128Hex.substr(24, 8), 16);

      return function () {

        a |= 0; b |= 0; c |= 0; d |= 0;

        let t = (((a + b) | 0) + d) | 0;

        d = (d + 1) | 0;

        a = b ^ (b >>> 9);

        b = (c + (c << 3)) | 0;

        c = (c << 21) | (c >>> 11);

        c = (c + t) | 0;

        return (t >>> 0) / 4294967296;

      };

    };

    // seed prngA with first half of tokenData.hash

    this.prngA = new sfc32(tokenData.hash.substr(2, 32));

    // seed prngB with second half of tokenData.hash

    this.prngB = new sfc32(tokenData.hash.substr(34, 32));

    for (let i = 0; i < 1e6; i += 2) {

      this.prngA();

      this.prngB();

    }

  }

  // random number between 0 (inclusive) and 1 (exclusive)

  random_dec() {

    this.useA = !this.useA;

    return this.useA ? this.prngA() : this.prngB();

  }

  // random number between a (inclusive) and b (exclusive)

  random_num(a, b) {

    return a + (b - a) * this.random_dec();

  }

  // random integer between a (inclusive) and b (inclusive)

  // requires a < b for proper probability distribution

  random_int(a, b) {

    return Math.floor(this.random_num(a, b + 1));

  }

  // random boolean with p as percent liklihood of true

  random_bool(p) {

    return this.random_dec() < p;

  }

  // random value in an array of items

  random_choice(list) {

    return list[this.random_int(0, list.length - 1)];

  }

}