WSP_SCR_VER
} else if (sc->scr_mode == WSP_SCR_VER) {
if (sc->scr_mode == WSP_SCR_VER && (tun.z_factor == 0 || (sc->dz_sum / tun.z_factor) != 0))
sc->scr_mode = abs(sc->dx_sum) > abs(sc->dy_sum) * 2 ? WSP_SCR_HOR : WSP_SCR_VER;
if (sc->scr_mode == WSP_SCR_VER) {