Canvas.setpenopacity(0.125);

const turtle = new Turtle();
let x, y, term;

function walk(i) {
    x = -120+240*Math.random();
    y = -120+240*Math.random();
    turtle.penup();
    turtle.goto(x,y+86);
    turtle.seth(Math.random()*360);
    turtle.pendown();
    term = (0.741*Math.log2(Math.abs(x))-0.404*Math.log2(Math.abs(x*y)))-0.171*Math.log2(Math.abs(x+y));
    turtle.seth((360*term)%360)
    for (let l = 1-0.5*term; l > 0.1; l*=0.97) {
        turtle.forward(l);
        turtle.left(16+4*term);
    }
    return i < 50000;
}