function setup() {
    createCanvas(400, 400);
    background(255);
    noLoop();
    stroke(0);
    angleMode(DEGREES);
}

function mouseDragged() {
    push();
    translate(mouseX, mouseY);
    fill(200);
    strokeWeight(2);
    let n = 12;
    for (let i = 0; i < n; i++) {
        line(0, 0, 0, -50 + random(10, 60));
        rotate(360 / n);
    }

    strokeWeight(4);
    ellipse(0, 0, 10);
    pop();
}