// You can find the Turtle API reference here: https://turtletoy.net/syntax
Canvas.setpenopacity(1);

// Global code will be evaluated once.
const turtle = new Turtle();
turtle.penup();
turtle.goto(-5,-5);
turtle.pendown();

// The walk function will be called until it returns false.
function walk(i) {
    turtle.forward(1*i);
    turtle.right(i^i);
    turtle.back(i);
    turtle.left(0.1*i);
    return i < 2000;
}