Canvas.setpenopacity(0.75);
const turtle = new Turtle();

const stepSize = 0.55; // min=0.01, max=2, step=0.01
let   angleStep = 0.73; // min=0.01, max=2, step=0.01
const steps = 400000; // min=0, max=1000000, step=1
const goldenAngleMult = 0; // min=0, max=1, step=1 (No, Yes)

// Use an irrational number for the angleStep to get interesting patterns
if (goldenAngleMult) {
    const goldenAngle = Math.PI * (3 - Math.sqrt(5));
    angleStep *= goldenAngle;
}

let angle = turtle.heading();

// The walk function will be called until it returns false.
function walk(i) {
    turtle.right(angle);
    turtle.forward(stepSize);
    
    angle += angleStep;
    
    return i < steps;
}