if (surface_exists(surf1))
    surface_free(surf1);
if (surface_exists(surf2))
    surface_free(surf2);
if (surface_exists(surf3))
    surface_free(surf3);
if (surface_exists(surf4))
    surface_free(surf4);
if (surface_exists(surf5))
    surface_free(surf5);
if (surface_exists(surf6))
    surface_free(surf6);
if (surface_exists(surf1b))
    surface_free(surf1b);
if (surface_exists(surf2b))
    surface_free(surf2b);
if (surface_exists(surf3b))
    surface_free(surf3b);
if (surface_exists(surf4b))
    surface_free(surf4b);
if (surface_exists(surf5b))
    surface_free(surf5b);
if (surface_exists(surf6b))
    surface_free(surf6b);
camera_destroy(view_camera[1]);
camera_destroy(view_camera[2]);
camera_destroy(view_camera[3]);
camera_destroy(view_camera[4]);
camera_destroy(view_camera[5]);
camera_destroy(view_camera[6]);