mavlink_simple_analyzer.h

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#pragma once

#include <float.h>
#include <stdint.h>

class SimpleAnalyzer
{
public:
    enum Mode {
        AVERAGE = 0,
        MIN,
        MAX,
    };

    SimpleAnalyzer(Mode mode, float window = 60.0f);

    void reset();

    void add_value(float val, float update_rate);

    bool valid() const;

    float get() const;

    float get_scaled(float scalingfactor) const;

    void get_scaled(uint8_t &ret, float scalingfactor) const
    {
        float avg = get_scaled(scalingfactor);
        int_round(avg);
        check_limits(avg, 0, UINT8_MAX);

        ret = static_cast<uint8_t>(avg);
    }

    void get_scaled(int8_t &ret, float scalingfactor) const
    {
        float avg = get_scaled(scalingfactor);
        int_round(avg);
        check_limits(avg, INT8_MIN, INT8_MAX);

        ret = static_cast<int8_t>(avg);
    }

private:
    unsigned int _n = 0; 
    float _window = 60.0f; 
    Mode _mode = AVERAGE; 
    float _result = 0.0f; 
    void check_limits(float &x, float min, float max) const;
    void int_round(float &x) const;
};

void convert_limit_safe(float in, uint16_t &out);
void convert_limit_safe(float in, int16_t &out);