//a polyfill.  seriously, node?  you don't support this?
if (Uint32Array.prototype.fill == undefined) {
  Uint32Array.prototype.fill = function(val, a, b) {
    for (var i=a; i<b; i++) {
      this[i] = val;
    }
  }
}

//from: https://en.wikipedia.org/wiki/Mersenne_Twister
function _int32(x) {
    // Get the 31 least significant bits.
    return ~~(((1<<30)-1) & (~~x))
}

function MersenneRandom(seed) {
        // Initialize the index to 0
        this.index = 624;
        this.mt = new Uint32Array(624);

        this.seed(seed);
}
MersenneRandom.prototype = {
    random : function random() {
      return this.extract_number() / (1<<30);
    },

    seed : function seed(seed) {
        seed = ~~(seed*8192);

        // Initialize the index to 0
        this.index = 624;
        this.mt.fill(0, 0, this.mt.length);

        this.mt[0] = seed;  // Initialize the initial state to the seed

        for (var i=1; i<624; i++) {
            this.mt[i] = _int32(
                1812433253 * (this.mt[i - 1] ^ this.mt[i - 1] >> 30) + i);
        }
    },

    //private
    extract_number : function extract_number() {
        if (this.index >= 624)
            this.twist();

        var y = this.mt[this.index];

        // Right shift by 11 bits
        y = y ^ y >> 11;
        // Shift y left by 7 and take the bitwise and of 2636928640
        y = y ^ y << 7 & 2636928640;
        // Shift y left by 15 and take the bitwise and of y and 4022730752
        y = y ^ y << 15 & 4022730752;
        // Right shift by 18 bits
        y = y ^ y >> 18;

        this.index = this.index + 1;

        return _int32(y);
    },

    //private
    twist : function twist() {
        for (var i=0; i<624; i++) {
            // Get the most significant bit and add it to the less significant
            // bits of the next number
            var y = _int32((this.mt[i] & 0x80000000) +
                       (this.mt[(i + 1) % 624] & 0x7fffffff));
            this.mt[i] = this.mt[(i + 397) % 624] ^ y >> 1;

            if (y % 2 != 0)
                this.mt[i] = this.mt[i] ^ 0x9908b0df;
        }

        this.index = 0;
  }
};

var mr = new MersenneRandom(0);
for (var i=0; i<32; i++) {
  console.log(mr.random());
}