*/
bool boxLineCollision(const aabb3f &box, const v3f &start, const v3f &dir,
v3f *collision_point, v3s16 *collision_normal);
*/
bool boxLineCollision(const aabb3f &box, const v3f &start, const v3f &dir,
v3f *collision_point, v3s16 *collision_normal);