Util.h

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#ifndef __ECU_UTIL_H__
#define __ECU_UTIL_H__
 
#define Euler exp(1.0)
 
#define clamp(v, m, x) min(max(v, m), x)
 
double EMAvg(double lastVal, double newVal, int memCount);
 
template <class T, class A, class B, class C, class D>
T cMap(T x, A inMin, B inMax, C outMin, D outMax) {
    T mapped = map(x, inMin, inMax, outMin, outMax);
    if (mapped < outMin)
        return outMin;
    if (mapped > outMax)
        return outMax;
    return mapped;
}
 
template <typename T>
class AvgVar {
private:
    double avg = 0.0;
    int samples;
 
public:
    AvgVar(int samples) {
        this->samples = samples;
    }
 
    operator T() const { return (T)avg; }
 
    T operator=(T val) {
        avg = EMAvg(avg, val, samples);
        return (T)avg;
    }
};
 
template <typename T>
class AvgVarRef {
private:
    double avg = 0.0;
    T *pointer;
    int samples;
 
public:
    AvgVarRef(T *pointer, int samples) {
        this->pointer = pointer;
        this->samples = samples;
    }
 
    operator T() {
        avg = EMAvg(avg, *pointer, samples);
        return (T)avg;
    }
};
 
#endif // __ECU_UTIL_H__