#include <stdafx.h>
#include <cstdio>
#include <iostream>
#include <graphics.h>
#include <conio.h>
#include <math.h>
#define pi M_PI

void Draw(double x, double y, double r, double a)
{
    int i;
    double xx[6], yy[6];

    for (i = 0; i<6; i++)
    {
        xx[i] = r*cos(a + i*pi * 2 / 5);
        yy[i] = r*sin(a + i*pi * 2 / 5);
    }
    for (i = 0; i<5; i++)
        line(x + xx[i], y + yy[i], x + xx[i + 1], y + yy[i + 1]);
}

void ProvRis(double x, double y, double r, double a, int d)
{
    int i;
    double h;

    h = 2 * r*cos(pi / 5);

    for (i = 0; i<5; i++)
    {
        Draw(x - h*cos(a + i*pi * 2 / 5), y - h*sin(a + i*pi * 2 / 5), r, a + pi);
        if (d > 0)
            ProvRis(x - h*cos(a + i*pi * 2 / 5), y - h*sin(a + i*pi * 2 / 5), r / (2 * cos(pi / 5) + 1), a, d - 1);
    }
    //Draw (x, y, r, a);
    if (d > 0)
        ProvRis(x, y, r / (2 * cos(pi / 5) + 1), a + pi, d - 1);
}

int main()
{
    int gm, gd = DETECT;

    initgraph(&gd, &gm, "egavga.bgi");
    ProvRis(320, 260, 95, pi / 2, 3);
    getch();
    closegraph();

    return 0;
}