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

void display() {
    glClear(GL_COLOR_BUFFER_BIT);
    glColor3f(1, 0, 0);
    glBegin(GL_QUADS);
        glVertex2f(150,150);
        glVertex2f(250, 150);
        glVertex2f(50, 50);
        glVertex2f(,);
    glEnd();
    glFlush();
}

void init() {
    // Define a cor de fundo (R, G, B, Alpha) - Preto por omissao
    glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
}

int main(int argc, char** argv) {
    glutInit(&argc, argv);
    
    // Configuracoes basicas da janela
    glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
    glutInitWindowSize(400,400);
    
    // Cria a janela com o prefixo obrigatorio
    glutCreateWindow("GLUT: Ex2");
    
    
    gluOrtho2D(0, 400, 400, 0);
    glutDisplayFunc(display);
    glutMainLoop();
    
    return 0;
}