def main():
    pygame.init()

    window_width = 1920
    window_height = 1080
    aspect_ratio = window_width/window_height
    fps = 60
    clock = pygame.time.Clock()
    running = True

    pygame.display.set_mode([window_width, window_height], DOUBLEBUF | OPENGL | FULLSCREEN)
    pygame.display.set_caption("Minecraft Clone")
    window_width, window_height = pygame.display.get_surface().get_size()
    pygame.event.set_grab(True)
    pygame.mouse.set_visible(False)

    # OPEN_GL STUFF
    #
    #
    # OPEN_GL STUFF

    while running:
        current_frame = pygame.time.get_ticks()
        delta_time = current_frame - last_frame
        last_frame = current_frame
        last_cam_pos = 0

        camera_speed = .01 * delta_time

        keys_pressed = pygame.key.get_pressed()

        # Keyboard
        if keys_pressed[K_w]:
            camera_position += camera_speed * camera_front
            camera_position[1] = last_cam_pos
        if keys_pressed[K_s]:
            camera_position -= camera_speed * camera_front
            camera_position[1] = last_cam_pos
        if keys_pressed[K_a]:
            camera_position -= vector.normalise(vector3.cross(np.array(camera_front, dtype=np.float32), np.array([0., 1., 0.], dtype=np.float32))) * camera_speed
        if keys_pressed[K_d]:
            camera_position += vector.normalise(vector3.cross(np.array(camera_front, dtype=np.float32), np.array([0., 1., 0.], dtype=np.float32))) * camera_speed
        if keys_pressed[K_SPACE]:
            camera_position[1] += camera_speed
            last_cam_pos = camera_position[1]
        if keys_pressed[K_LSHIFT]:
            camera_position[1] -= camera_speed
            last_cam_pos = camera_position[1]

        # Mouse
        mouse_x, mouse_y = pygame.mouse.get_pos()
        x_offset = mouse_x - last_x
        y_offset = last_y - mouse_y

        last_x = mouse_x
        last_y = mouse_y

        x_offset *= mouse_sensitivity
        y_offset *= mouse_sensitivity

        for event in pygame.event.get():
            if event.type == QUIT:
                running = False
            elif event.type == KEYDOWN:
                if event.key == K_ESCAPE:
                    running = False

        # MORE OPEN_GL STUFF
        #
        #
        #
        #

        pygame.display.flip()
        clock.tick(fps)

    pygame.quit()
    sys.exit()

if __name__ == "__main__":
    main()