random.js

// fast random number generator with better distribution
function Mash() {
        var n = 0xefc8249d;

        var mash = function(data) {
            data = data.toString();
            for (var i = 0; i < data.length; i++) {
                n += data.charCodeAt(i);
                var h = 0.02519603282416938 * n;
                n = h >>> 0;
                h -= n;
                h *= n;
                n = h >>> 0;
                h -= n;
                n += h * 0x100000000;
            }

            return (n >>> 0) * 2.3283064365386963e-10;
        };

        mash.version = 'Mash 0.9';
        return mash;
    }
function LFib() {
        return (function(args) {
            var k0 = 255,
                k1 = 52,
                k2 = 0;
            var s = [];

            var mash = Mash();
            if (args.length === 0) {
                args = [+new Date()];

            }
            for (var j = 0; j < 256; j++) {
                s[j] = mash(' ');
                s[j] -= mash(' ') * 4.76837158203125e-7;
                if (s[j] < 0) {
                    s[j] += 1;
                }
            }
            for (var i = 0; i < args.length; i++) {
                for (var j = 0; j < 256; j++) {
                    s[j] -= mash(args[i]);
                    s[j] -= mash(args[i]) * 4.76837158203125e-7;
                    if (s[j] < 0) {
                        s[j] += 1;
                    }
                }
            }
            mash = null;

            var random = function() {
                k0 = (k0 + 1) & 255;
                k1 = (k1 + 1) & 255;
                k2 = (k2 + 1) & 255;

                var x = s[k0] - s[k1];
                if (x < 0.0) {
                    x += 1.0;
                }
                x -= s[k2];
                if (x < 0.0) {
                    x += 1.0;
                }
                return s[k0] = x;
            };


            random.uint32 = function() {
                return random() * 0x100000000 >>> 0;

            };
            random.fract53 = random;
            random.version = 'LFib 0.9';
            random.args = args;

            return random;
        }(Array.prototype.slice.call(arguments)));
    }
const random=LFib();