astroid.cpp

# include <Siv3D.hpp>
# define NUM 5000

void Main()
{
	float radius,theta, x, y;
	
	Window::Width() > Window::Height() ? radius = Window::Height() / 2 : radius = Window::Width() / 2;

	while (System::Update())
	{
		for (theta = 0.0; theta < TwoPiF; theta += TwoPiF / NUM){
			x = radius * Pow(Cos(theta), 3);
			y = radius * Pow(Sin(theta), 3);
			Point(x + Window::Width() / 2, y + Window::Height() / 2).draw();
		}
	}
}