#include <iostream>
#include <graphics.h>
#include <math.h>
using namespace std;


int main()
{
    initwindow(800,600);
    double xa=400;
    double ya=400;
    double xb=500;
    double yb=400;
    double xc=500;
    double yc=450;
    double xd=400;
    double yd=450;
    double Sx=2.2;
    double Sy=1.6;
    double xm=xa+(xc-xa)*0.33;
    double ym=ya+(yc-ya)*0.33;

    double xa1=xm+(xa-xm)*Sx;
    double ya1=ym+(ya-ym)*Sy;
    double xb1=xm+(xb-xm)*Sx;
    double yb1=ym+(yb-ym)*Sy;
    double xc1=xm+(xc-xm)*Sx;
    double yc1=ym+(yc-ym)*Sy;
    double xd1=xm+(xd-xm)*Sx;
    double yd1=ym+(yd-ym)*Sy;
for(int i=0;i<=360;i++)
{
 double       xa2=xm+(xa1-xm)*cos((i*3.14)/180)-(ya1-ym)*sin((i*3.14)/180);
  double      ya2=ym+(xa1-xm)*sin((i*3.14)/180)+(ya1-ym)*cos((i*3.14)/180);
    double    xb2=xm+(xb1-xm)*cos((i*3.14)/180)-(yb1-ym)*sin((i*3.14)/180);
   double     yb2=ym+(xb1-xm)*sin((i*3.14)/180)+(yb1-ym)*cos((i*3.14)/180);
  double      xc2=xm+(xc1-xm)*cos((i*3.14)/180)-(yc1-ym)*sin((i*3.14)/180);
   double     yc2=ym+(xc1-xm)*sin((i*3.14)/180)+(yc1-ym)*cos((i*3.14)/180);
    double    xd2=xm+(xd1-xm)*cos((i*3.14)/180)-(yd1-ym)*sin((i*3.14)/180);
     double   yd2=ym+(xd1-xm)*sin((i*3.14)/180)+(yd1-ym)*cos((i*3.14)/180);
    setcolor(15);
    line(xa2,ya2,xd2,yd2);
    line(xd2,yd2,xc2,yc2);
    line(xc2,yc2,xb2,yb2);
    line(xa2,ya2,xb2,yb2);
    line(xa2,ya2,xm,ym);
    line(xm,ym,xc2,yc2);
    line(xm,ym,xd2,yd2);
    line(xm,ym,xb2,yb2);
    delay(50);

    setcolor(0);
    line(xa2,ya2,xd2,yd2);
    line(xd2,yd2,xc2,yc2);
    line(xc2,yc2,xb2,yb2);
    line(xa2,ya2,xb2,yb2);
    line(xa2,ya2,xm,ym);
    line(xm,ym,xc2,yc2);
    line(xm,ym,xd2,yd2);
    line(xm,ym,xb2,yb2);
}
    getch();
    return 0;


}