#include <cmath>
#include <iostream>

#include "kblib/simple.h"

void render(const int scale, const int width, const int height,
            std::ostream& os) {
	constexpr double pi = 3.14159265358979323846264338327950288419716939937510;
	constexpr double tau = 2 * pi;
	for (const double y : kblib::range(height * scale)) {
		const double lbias = std::cos(y * tau / scale);
		for (const double x : kblib::range(width * scale)) {
			if (std::cos(x * tau / scale) + lbias < 0) {
				os << "**";
			} else {
				os << "  ";
			}
		}
		os << '\n';
	}
}

int sines_main(int, char**) {
	int scale = 0;
	std::cout << "Scale: ";
	std::cin >> scale;
	int width = 1;
	std::cout << "Horizontal count: ";
	std::cin >> width;
	int height = 1;
	std::cout << "Vertical count: ";
	std::cin >> height;
	std::cout << '\n';
	render(scale, width, height, std::cout);
	return 0;
}