Z-order curve, Maxwells Demon as javascript or java

Like this:

var numberOfPoints=64;
var scale=0.2;
draw();

function morton (x)
{
x = x & 0x55555555;
x = (x | (x >> 1)) & 0x33333333;
x = (x | (x >> 2)) & 0x0F0F0F0F;
x = (x | (x >> 4)) & 0x00FF00FF;
x = (x | (x >> 8)) & 0x0000FFFF;
return x;
}

function draw(){
    with (sketch) {
        moveto(-.9,-.9);
        glclearcolor(1., 1., 1., 1.);
        glclear();
        for ( var z = 0; z < numberOfPoints; ++z ) {
            var x = (morton(z)*scale)-.9;
            var y = (morton(z >> 1)*scale) -.9;
            var q = 10;
            post("x", x, " y", y, "\n");
            lineto(x,y,0);
        }
    }
}