num.hpp

/**
 * Copyright (C) 2011-2022 Bitcraze AB, 2025 Simon D. Levy
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, in version 3.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#pragma once

#include <math.h>
#include <stdint.h>
#include <string.h>

#include <datatypes.hpp>

class Num {

    public:

        // Small number epsilon, to prevent dividing by zero
        static constexpr float kEpsilon = 1e-6f;

        static constexpr float kRad2Deg = 180.0f / M_PI;
        static constexpr float kDeg2Rad = M_PI / 180.0f;

        static auto ConstrainFloat(const float val, const float maxabs) -> float
        {
            return val < -maxabs ? -maxabs : val > maxabs ? maxabs : val;
        }

        static auto ConstrainFloat(float value, const float minVal,
                const float maxVal) -> float
        {
            return fminf(maxVal, fmaxf(minVal,value));
        }
};