qqlrng.js

var $t=Math.pow(2,-32),ge=32557,Le=19605,ze=62509,Jt=22609,Qt=33103,en=63335,tn=31614,nn=5125;
var De=class{constructor(){this._state=new Uint16Array(4),this._dv=new DataView(this._state.buffer),this._nG=null,this._hNG=!1}setSeed(t){this._hNG=!1,this._nG=null;let l=~~((t.length-2)/2),c=[];for(let b=0;b<l;b++){let k=2+2*b;c.push(parseInt(t.slice(k,k+2),16))}let e=1690382925,d=72970470,f=qe(c,e),g=qe(c,d);this._dv.setUint32(0,f),this._dv.setUint32(4,g)}rnd(){let t=this._state,l=t[0],c=t[1],e=t[2],d=t[3],f=Qt+ge*l|0,g=en+ge*c+(Le*l+(f>>>16))|0,b=tn+ge*e+Le*c+(ze*l+(g>>>16))|0,k=nn+ge*d+(Le*e+ze*c)+(Jt*l+(b>>>16));t[0]=f,t[1]=g,t[2]=b,t[3]=k;let L=(d<<21)+((d>>2^e)<<5)+((e>>2^c)>>11),B=L>>>(d>>11)|L<<(-(d>>11)&31);return $t*(B>>>0)}uniform(t=1,l=null){return l===null&&([t,l]=[0,t]),this.rnd()*(l-t)+t}gauss(t=0,l=1){if(this._hNG){this._hNG=!1;var c=this._nG;return this._nG=null,t+l*c}else{var e=0,d=0,f=0;do e=this.rnd()*2-1,d=this.rnd()*2-1,f=e*e+d*d;while(f>=1||f===0);var g=Math.sqrt(-2*Math.log(f)/f);return this._nG=d*g,this._hNG=!0,t+l*(e*g)}}odds(t){return this.uniform()<=t}choice(t){return t[Math.floor(this.uniform(0,t.length))]}weightedChoice(t){let c=t.map(([,f])=>f).reduce((f,g)=>f+g,0)*this.uniform(),e=0;for(let f=0;f<t.length;f++){let[g,b]=t[f];if(e+=b,e>=c)return g}let[d]=t[t.length-1];return d}wc(t){return this.weightedChoice(t)}shuffle(t){let l=t.map(c=>[this.uniform(0,1),c]);return l.sort((c,e)=>c[0]<e[0]?-1:1),l.map(([,c])=>c)}winnow(t,l){let c=t.slice();for(;c.length>l;){let e=Math.floor(this.rnd()*c.length);c.splice(e,1)}return c}}
function qe(o,t=0){for(var d=1540483477,f=o.length,g=t^f,b=0,k;f>=4;)k=o[b]&255|(o[++b]&255)<<8|(o[++b]&255)<<16|(o[++b]&255)<<24,k=(k&65535)*d+(((k>>>16)*d&65535)<<16),k^=k>>>24,k=(k&65535)*d+(((k>>>16)*d&65535)<<16),g=(g&65535)*d+(((g>>>16)*d&65535)<<16)^k,f-=4,++b;switch(f){case 3:g^=(o[b+2]&255)<<16;case 2:g^=(o[b+1]&255)<<8;case 1:g^=o[b]&255,g=(g&65535)*d+(((g>>>16)*d&65535)<<16)}return g^=g>>>13,g=(g&65535)*d+(((g>>>16)*d&65535)<<16),g^=g>>>15,g>>>0}
function fe(){let o=Array(64).fill().map(()=>Math.floor(Math.random()*16).toString(16));return"0x"+o.join("")}

const Rng = De;
const randomSeed = fe;

const rng = new Rng();
rng.setSeed(randomSeed());
console.log(rng.choice(["one", "two", "three"]));