如何在C++中画一个带星星的圆？

#include <SFML/Graphics.hpp>

int main()
{
    sf::RenderWindow window(sf::VideoMode(800, 600), "Star Circle");

    sf::CircleShape circle(200);
    circle.setFillColor(sf::Color::Transparent);
    circle.setOutlineThickness(2);
    circle.setOutlineColor(sf::Color::White);
    circle.setPosition(300, 200);

    sf::ConvexShape star;
    star.setPointCount(5);
    star.setPoint(0, sf::Vector2f(0, -50));
    star.setPoint(1, sf::Vector2f(14, -20));
    star.setPoint(2, sf::Vector2f(47, -15));
    star.setPoint(3, sf::Vector2f(23, 7));
    star.setPoint(4, sf::Vector2f(29, 40));
    star.setFillColor(sf::Color::White);
    star.setOutlineThickness(2);
    star.setOutlineColor(sf::Color::White);

    while (window.isOpen())
    {
        sf::Event event;
        while (window.pollEvent(event))
        {
            if (event.type == sf::Event::Closed)
                window.close();
        }

        window.clear();

        // 绘制圆
        window.draw(circle);

        // 绘制星星
        for (int i = 0; i < 360; i += 30)
        {
            star.setPosition(400 + 200 * cos(i * 3.14159 / 180), 300 + 200 * sin(i * 3.14159 / 180));
            window.draw(star);
        }

        window.display();
    }

    return 0;
}