// 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();
const rot_shift = 11; //min = 0.1 max = 50 step = 0.1
const line_length = 2; //min = 0.1 max = 5 step = 0.1
const step_size = 1; // min = 0.1 max = 10 step = 0.1

for(let i = 0; i < 90; i+=step_size) {
    pom_pom(0, 0, i, i+line_length, i, i/rot_shift);
}

function pom_pom(x_center, y_center, inner_diameter, outer_diameter, legs, rot) {
    let theta = rot;
    for(let i = 0; i < legs; i++) {
        line(x_center + Math.cos(theta)*inner_diameter,
        y_center + Math.sin(theta)*inner_diameter,
        x_center + Math.cos(theta)*outer_diameter,
        y_center + Math.sin(theta)*outer_diameter)
        theta += Math.PI * 2 / legs;
    }
}

function line(x1,y1,x2,y2) {
    turtle.penup();
    turtle.goto(x1, y1);
    turtle.pendown();
    turtle.goto(x2, y2);
}