void makeCave(v3s16 nmin, v3s16 nmax, int max_stone_height);
void makeTunnel(bool dirswitch);
void carveRoute(v3f vec, float f, bool randomize_xz, bool is_ravine);
void makeCave(v3s16 nmin, v3s16 nmax, int max_stone_height);
void makeTunnel(bool dirswitch);
void carveRoute(v3f vec, float f, bool randomize_xz, bool is_ravine);