#include <GL/gl.h>
#include <GL/glut.h>
void display(void)
{
/* clear all pixels */
glClear (GL_COLOR_BUFFER_BIT);
/* draw white polygon (rectangle) with corners at
* (0.25, 0.25, 0.0) and (0.75, 0.75, 0.0)
*/
glColor3d (1,1,1);
glBegin(GL_POLYGON);
glVertex2d(200,260);
glVertex2d(266,400);
glVertex2d(246,440);
glVertex2d(180,300);
glEnd();

glColor3d (1,1,1);
glBegin(GL_POLYGON);
glVertex2d(300,360);
glVertex2d(350,360);
glVertex2d(360,400);
glVertex2d(276,400);
glVertex2d(230,300);
glVertex2d(270,300);
glEnd();

glColor3d (1,1,1);
glBegin(GL_POLYGON);
glVertex2d(270,300);
glVertex2d(300,260);
glVertex2d(210,260);
glVertex2d(230,300);
glEnd();

glColor3d (1,1,1);
glBegin(GL_POLYGON);
glVertex2d(270,410);
glVertex2d(360,410);
glVertex2d(340,450);
glVertex2d(250,450);
glEnd();

glColor3d (1,1,1);
glBegin(GL_POLYGON);
glVertex2d(350,210);
glVertex2d(370,250);
glVertex2d(300,340);
glVertex2d(280,300);
glEnd();

glColor3d (1,1,1);
glBegin(GL_POLYGON);
glVertex2d(400,300);
glVertex2d(360,350);
glVertex2d(305,350);
glVertex2d(375,260);
glVertex2d(460,260);
glVertex2d(460,300);
glEnd();

glColor3d (1,1,1);
glBegin(GL_POLYGON);
glVertex2d(460,300);
glVertex2d(470,350);
glVertex2d(510,260);
glVertex2d(460,260);
glEnd();


glColor3d (1,1,1);
glBegin(GL_POLYGON);
glVertex2d(360,210);
glVertex2d(380,250);
glVertex2d(510,250);
glVertex2d(480,210);
glEnd();

glColor3d (1,1,1);
glBegin(GL_POLYGON);
glVertex2d(410,310);
glVertex2d(450,310);
glVertex2d(470,400);
glVertex2d(430,400);
glEnd();



/* don't wait!
* start processing buffered OpenGL routines
*/
glFlush ();
}
void init (void)
{
/* select clearing (background) color */
glClearColor (0.0, 0.0, 0.0, 0.0);
/* initialize viewing values */
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluOrtho2D(0,700,0,700);
}
/*
* Declare initial window size, position, and display mode
* (single buffer and RGBA). Open window with "hello"
* in its title bar. Call initialization routines.
* Register callback function to display graphics.
* Enter main loop and process events.
*/
int main(int argc, char** argv)
{
glutInit(&argc, argv);
glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB);
glutInitWindowSize (500, 500);
glutInitWindowPosition (100, 100);
glutCreateWindow ("hello");
init ();
glutDisplayFunc(display);
glutMainLoop();
return 0; /* ISO C requires main to return int. */
}