Thread: OpenGL square not showing up..

Hi, so im new to graphics programming and decided to try openGL (I'm planning on making a 2D game in it at first, possibly pacman). And I'm having trouble getting it to draw shapes on the screen.

Code:

#include "glut.h"

#define WIDTH 350
#define HEIGHT 500

void display();

void display()
{
	glClearColor(1.0, 0.0, 0.0, 1.0);
	glClear(GL_COLOR_BUFFER_BIT);
	glLoadIdentity();
	glTranslatef(0.0, 0.0, -5.0);
	glBegin(GL_QUADS);
	glVertex3f(-1.0f, -1.0f, 0.0f);
	glVertex3f(-1.0f, 1.0f, 0.0f);
	glVertex3f(1.0f, 1.0f, 0.0f);
	glVertex3f(1.0f, -1.0f, 0.0f);
	glEnd();

	glFlush();
}

int main(int argc, char **argv)
{
	glutInit(&argc, argv);
	glutInitDisplayMode(GLUT_SINGLE);
	glutInitWindowSize(WIDTH, HEIGHT);
	glutInitWindowPosition(100, 100);
	glutCreateWindow("PacMan");
	glutDisplayFunc(display);
	glutMainLoop();
}

also once i get to the point of coding a pacman game.. would the best method be to use and array to represent a tile like system to draw the game boards, and to be used with the ghost AI