#include <windows.h>
#include <GL/glut.h>
#include <stdlib.h>
#include <math.h>

void init()
{
    glClearColor(0.0f,128.0f,0.0f,0.0f);
    glOrtho(-15,15,-15,15,-15,5);
}

void circle(GLfloat rx,GLfloat ry,GLfloat cx,GLfloat cy)
{

 glBegin(GL_TRIANGLE_FAN);
 glVertex2f(cx,cy);

 for(int i=0;i<=100;i++)
 {
    float angle= 2.0f *3.1416f*i/100;
    float x = rx *cosf(angle);
    float y = ry * sinf(angle);
    glVertex2f((x+cx),(y+cy));

 }
 glEnd();
}

void myDisplay()
{

    glClear(GL_COLOR_BUFFER_BIT);
    glColor3f(255.0f,0.0f,0.0f);
    circle(3,3,0,0);
    glFlush();

}
int main()
{

   glutInitDisplayMode(GLUT_SINGLE | GLUT_RED) ;
   glutInitWindowSize(600,600);
   glutInitWindowPosition(200,200);
   glutCreateWindow("Lab Task Circle");
   init();
   glutDisplayFunc(myDisplay);
   glutMainLoop();
   return 0;



}