#include "Circle.h"
#include <cmath>

Circle::Circle(int x, int y, int radius, Colors color) : Shape(Position(x, y), color) {
    _radius = radius;
}

void Circle::draw() {
    /* see https://de.wikibooks.org/wiki/Formelsammlung_Mathematik:_Geometrie
     * Höhensatz des Euklid
     * */
    int x_start = position.x - _radius / 2;
    int x_stop = position.x + _radius / 2;

    for (int i = x_start; i <= x_stop; i++) {
        double x_relative = double(i) - double(x_start);
        double h = sqrt(x_relative * (x_stop - x_start - x_relative));
        ansiConsole.printText(position.x + int(x_relative) - _radius / 2,
                              static_cast<int>(position.y + h), "#",
                              color);
        ansiConsole.printText(position.x + int(x_relative) - _radius / 2,
                              static_cast<int>(position.y - h), "#",
                              color);

    }
}