add_upgrade(Vector(posx, posy), col_side, UPGRADE_GROWUP);
else /* Tux is big, add a fireflower: */
add_upgrade(Vector(posx, posy), col_side, UPGRADE_FIREFLOWER);
add_upgrade(Vector(posx, posy), col_side, UPGRADE_GROWUP);
else /* Tux is big, add a fireflower: */
add_upgrade(Vector(posx, posy), col_side, UPGRADE_FIREFLOWER);