Shahid Minar Using Mid Point Circle Algorithm in Opengl

#include<stdio.h>
#include<GL/gl.h>
#include<GL/glut.h>


float p;
int r;
float x, y;
void Display(void){

    glClear(GL_COLOR_BUFFER_BIT);


    glColor3ub (192,192,192);
    glBegin(GL_POLYGON);
    glVertex2d (-400,-70);
    glVertex2d (400,-70);
    glVertex2d (180,80);
    glVertex2d (-180,80);
    glEnd();


    MidPointCircle(0,200,85);
    //1
    glColor3ub (128,128,128);
    glBegin(GL_POLYGON);
    glVertex2d (-100,390);
    glVertex2d (100,390);
    glVertex2d (100,370);
    glVertex2d (-100,370);
    glEnd();
    //2
     glColor3ub (128,128,128);
    glBegin(GL_POLYGON);
    glVertex2d (-100,370);
    glVertex2d (100,370);
    glVertex2d (60,300);
    glVertex2d (-60,300);
    glEnd();
    //3
    glColor3ub (0,0,0);
    glBegin(GL_POLYGON);
    glVertex2d (-50,350);
    glVertex2d (50,350);
    glVertex2d (30,300);
    glVertex2d (-30,300);
    glEnd();
    //3.1
    glColor3ub (0,255,255);
    glBegin(GL_POLYGON);
    glVertex2d (-40,350);
    glVertex2d (40,350);
    glVertex2d (25,300);
    glVertex2d (-25,300);
    glEnd();

    //Left
    glColor3ub (128,128,128);
    glBegin(GL_POLYGON);
    glVertex2d (-60,300);
    glVertex2d (-30,300);
    glVertex2d (-30,0);
    glVertex2d (-60,0);
    glEnd();
    //Left_shadow
    glColor3ub (0,0,0);
    glBegin(GL_POLYGON);
    glVertex2d (-30,300);
    glVertex2d (-25,300);
    glVertex2d (-25,10);
    glVertex2d (-30,0);
    glEnd();

    //Right
    glColor3ub (128,128,128);
    glBegin(GL_POLYGON);
    glVertex2d (60,300);
    glVertex2d (30,300);
    glVertex2d (30,0);
    glVertex2d (60,0);
    glEnd();
    //Right_shadow
    glColor3ub (0,0,0);
    glBegin(GL_POLYGON);
    glVertex2d (30,300);
    glVertex2d (25,300);
    glVertex2d (25,10);
    glVertex2d (30,0);
    glEnd();
    ////

    ///Right


    //Left
    glColor3ub (128,128,128);
    glBegin(GL_POLYGON);
    glVertex2d (130,280);
    glVertex2d (100,280);
    glVertex2d (100,0);
    glVertex2d (130,0);
    glEnd();
    //Left_shadow
    glColor3ub (0,0,0);
    glBegin(GL_POLYGON);
    glVertex2d (100,280);
    glVertex2d (93.5,270);
    glVertex2d (93.5,15);
    glVertex2d (100,0);
    glEnd();
    //right
    glColor3ub (128,128,128);
    glBegin(GL_POLYGON);
    glVertex2d (200,280);
    glVertex2d (170,280);
    glVertex2d (170,0);
    glVertex2d (200,0);
    glEnd();
    //right_shadow
    glColor3ub (0,0,0);
    glBegin(GL_POLYGON);
    glVertex2d (170,250);
    glVertex2d (160,250);
    glVertex2d (160,10);
    glVertex2d (170,0);
    glEnd();
    //head
    glColor3ub (128,128,128);
    glBegin(GL_POLYGON);
    glVertex2d (170,280);
    glVertex2d (130,280);
    glVertex2d (130,250);
    glVertex2d (170,250);
    glEnd();
    //head shadow
    glColor3ub (0,0,0);
    glBegin(GL_POLYGON);
    glVertex2d (170,250);
    glVertex2d (130,250);
    glVertex2d (130,245);
    glVertex2d (160,245);
    glEnd();
    ///Right


    //Left
    glColor3ub (128,128,128);
    glBegin(GL_POLYGON);
    glVertex2d (-130,280);
    glVertex2d (-100,280);
    glVertex2d (-100,0);
    glVertex2d (-130,0);
    glEnd();
    //Left_shadow
    glColor3ub (0,0,0);
    glBegin(GL_POLYGON);
    glVertex2d (-100,280);
    glVertex2d (-93.5,270);
    glVertex2d (-93.5,15);
    glVertex2d (-100,0);
    glEnd();
    //right
    glColor3ub (128,128,128);
    glBegin(GL_POLYGON);
    glVertex2d (-200,280);
    glVertex2d (-170,280);
    glVertex2d (-170,0);
    glVertex2d (-200,0);
    glEnd();
    //right_shadow
    glColor3ub (0,0,0);
    glBegin(GL_POLYGON);
    glVertex2d (-170,250);
    glVertex2d (-160,250);
    glVertex2d (-160,10);
    glVertex2d (-170,0);
    glEnd();
    //head
    glColor3ub (128,128,128);
    glBegin(GL_POLYGON);
    glVertex2d (-170,280);
    glVertex2d (-130,280);
    glVertex2d (-130,250);
    glVertex2d (-170,250);
    glEnd();
    //head shadow
    glColor3ub (0,0,0);
    glBegin(GL_POLYGON);
    glVertex2d (-170,250);
    glVertex2d (-130,250);
    glVertex2d (-130,245);
    glVertex2d (-160,245);
    glEnd();

    glFlush();

}
void MidPointCircle(int Xc, int Yc, int rad){
    int cntrX = Xc;
    int cntrY = Yc;
    r = rad;
    x = 0;
    y = r;
    p = 1-r;
    while(x<=y){
        glColor3ub(255, 60, 0);
        glBegin(GL_POLYGON);
        if(p<0){
            x++;
            p = p+(2*x)+3;
        }
        else{
            x++;
            y--;
            p = p+(2*x)-(2*y)+5;
        }
    glVertex2d(cntrX+x,cntrY+y);
    glVertex2d(cntrX+y,cntrY+x);
    glVertex2d(cntrX-y,cntrY+x);
    glVertex2d(cntrX-x,cntrY+y);
    glVertex2d(cntrX-x,cntrY-y);
    glVertex2d(cntrX-y,cntrY-x);
    glVertex2d(cntrX+x,cntrY-y);
    glVertex2d(cntrX+y,cntrY-x);


    glEnd();
    }



}
void init (void)
            {
            glClearColor (0.0 ,1.0 ,1.0, 0.0);
            glMatrixMode(GL_PROJECTION);
            glLoadIdentity();
            gluOrtho2D(-500, 500, -300, 700);
    }



    int main(int argc, char** argv){
            glutInit(&argc, argv);
            glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB);
            glutInitWindowSize (500, 500);
            glutInitWindowPosition (100, 100);
            glutCreateWindow ("Shahid Minar");
            init ();
            glutDisplayFunc(Display);
            glutMainLoop();
            return 0;
    }