Canvas.setpenopacity(1);

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

function walk(i) {
    x = -100+200*Math.random();
    y = -100+200*Math.random();
    turtle.penup();
    turtle.goto(x,y);
    turtle.seth(Math.random()*360);
    turtle.pendown();
    turtle.forward(2-0.25*Math.log2(Math.abs(x))-0.5*Math.log2(Math.abs(y)));
    return i < 200000;
}