const std::map<std::string, Cmd> map = {
    {"arc", Cmd::Arc},
    {"circle", Cmd::Circle},
    {"square", Cmd::Square},
    {"point", Cmd::Point},
    {"top", Cmd::Top},
    {"surface_bottom", Cmd::SurfaceBottom},
    {"surface_bottom_l", Cmd::SurfaceBottomL},
    {"surface_bottom_r", Cmd::SurfaceBottomR},
    {"surface_bottom_dir", Cmd::SurfaceBottomD},
    {"align", Cmd::Align},
    {"align_x", Cmd::AlignX},
    {"align_y", Cmd::AlignY},
    {"translate", Cmd::Translate},
    {"move", Cmd::Move},
    {"move_fixed", Cmd::MoveFixed},
    {"scalex", Cmd::Scalex},
    {"rotate_force", Cmd::RotateForce},
    {"scale_force", Cmd::ScaleForce},
    {"direction", Cmd::Direction},
    {"direction_randomize", Cmd::DirectionRandomize},
    {"move_outside_solid", Cmd::MoveOutsideSolid},
    {"project", Cmd::Project},
    {"erase", Cmd::Erase}, // erase(begin, count)
    {"shuffle", Cmd::Shuffle},
    {"angle", Cmd::Angle},
};
const std::array<uint16_t, unsigned(Cmd::_Number)> arg_count = {{
    3, 2, 2, 0, 2, 2, 2, 2, 2,
    2, 2, 2, 2, 1, 1, 2, 1, 1, 2, 2, 1, 3, 2, 0, 1
}};