/*
 * =====================================================================================
 *
 *       Filename:  square.c
 *
 *        Version:  1.0
 *        Created:  06/10/2008 04:38:21 AM
 *       Revision:  none
 *       Compiler:  gcc
 *
 *         Author:  Abdulmajed Dakkak (AD), adakkak@eng.utoledo.edu
 *        Company:  adakkak
 *
 * =====================================================================================
 */

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

void display( );

void display(void)
{
    glClear(GL_COLOR_BUFFER_BIT);

    glColor3f(1.0, 1.0, 1.0);
    glBegin(GL_POLYGON);
        glVertex3f(0.25, 0.25, 0.0);
        glVertex3f(0.75, 0.25, 0.0);
        glVertex3f(0.75, 0.75, 0.0);
        glVertex3f(0.25, 0.75, 0.0);
    glEnd( );

    glFlush( );
}

void init(void)
{
    glClearColor(0.0, 0.0, 0.0, 0.0);
    glMatrixMode(GL_PROJECTION);
    glLoadIdentity( );
    glOrtho(0.0, 1.0, 0.0, 1.0, -1.0, 1.0);
}

int main(int argc, char** argv)
{
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
    glutInitWindowSize(250,250);
    glutInitWindowPosition(100, 100);
    glutCreateWindow("Hello");
    init( );
    glutDisplayFunc(display);
    glutMainLoop( );
    return 0;
}