// 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(-50,-20);
turtle.pendown();

// The walk function will be called until it returns false.

function walk(i) {
    let distance = 100 + 50 * Math.sin(i);
    let angle = 144 + i;
    turtle.forward(distance);
    turtle.right(angle);
    return i < 20;
}