JSFiddle - React, Tailwind, and code Playground

by Aeoril

HTML

<script src="http://bitwiseshiftleft.github.io/sjcl/sjcl.js"></script>
<h2>Math.random</h2>
<canvas id="canvas1"></canvas>
<h2>window.crypto</h2>
<canvas id="canvas2"></canvas>
<h2>WELL1024</h2>
<canvas id="canvas3"></canvas>
<h2>Standpoor</h2>
<canvas id="canvas4"></canvas>

CSS

html, body { padding: 0; margin: 0; width:100%;}

JavaScript

//=============== Start library code ==================

function WELL1024(seed_array){
	var W  = 32,
		R  = 32,
		M1 =  3,
		M2 = 24,
		M3 = 10,
		FACT = 2.32830643653869628906e-10,
		state_i = 0,
		STATE = new Array(R),
		z0, z1, z2,
		j;

	if(seed_array && seed_array.length == 32){
		for (j = 0; j < R; j++) {
			STATE[j] = seed_array[j];
		}
	} else {
		for (j = 0; j < R; j++) {
			STATE[j] = Math.round(Math.random()*Math.pow(2, 32));
		}
	}

	function MAT0POS(t,v){ return(v^(v>>t));      }
	function MAT0NEG(t,v){ return(v^(v<<(-(t)))); }
	function Identity(v) { return(v);             }

	function V0()   { return STATE[state_i                  ]; }
	function VM1()  { return STATE[(state_i+M1) & 0x0000001f]; }
	function VM2()  { return STATE[(state_i+M2) & 0x0000001f]; }
	function VM3()  { return STATE[(state_i+M3) & 0x0000001f]; }
	function VRm1() { return STATE[(state_i+31) & 0x0000001f]; }
	function newV0(v) { STATE[(state_i+31) & 0x0000001f] = v; }
	function newV1(v) { STATE[state_i] = v;                   }

	return (function(){
		z0    = VRm1();
		z1    = Identity(V0())       ^ MAT0POS(8, VM1());
		z2    = MAT0NEG (-19, VM2()) ^ MAT0NEG(-14,VM3());
		newV1(  z1                   ^ z2); 
		newV0(  MAT0NEG (-11,z0)     ^ MAT0NEG(-7,z1)    ^ MAT0NEG(-13,z2));
		state_i = (state_i + 31) & 0x0000001f;
		// ORIGINAL WAY. Seems to return range: [-0.5, 0.5]
		// return (V0()  * FACT); 
		// Bring the RNG back into the range of [0, 1] from: http://www.iro.umontreal.ca/~simardr/ssj/indexf.html
		return (V0() > 0 ? V0() : V0() + 0x100000000) * FACT;
	});
}
window.sprng = new...