int local_ammount;
int local_state=0;
int local_prev=-1;
int local_sensity = 30; // kalibracja
int local_current = 0;

int _min = -1;
int _max = -1;
int _prev = -1;

int threshold = 0;
int threshold_ammount = 0;
int threshold_black = 160;
int threshold_white = 170;
//int threshold_black = 90;
//int threshold_white = 100;

int srednia(int val){
    if (_prev==-1){_prev=val;}
    else{
        _prev = val;
        val = (val +_prev ) / 2;
    }
    return val;
}

void setCurrentLocal(int val){
    if (local_prev == -1){ local_prev=val;}
    else{
        local_state += ( val - local_prev );

        if (local_state > local_sensity) {local_state = local_sensity;}
        if (local_state < -1*local_sensity) {local_state = -local_sensity;}
        if (local_state > 0 ) {local_current =2;}

        if (local_state <= -1* local_sensity and local_current==2){
            local_current = 1;
        } // pretendent do czarnego
        if (local_prev < val){
            if (local_current==1){ local_ammount +=1; local_current=0;}
        }
        local_prev = val;
    }
}


void setCurrentThreshold(int val){
    if (val <= threshold_black){
        if(threshold==1){ threshold_ammount+=1; }
        threshold = -1;
    };
    if (val >= threshold_white){
        threshold = 1;
    };
};


int main() {
    int val = srednia(10);
    setCurrentThreshold(val);
    setCurrentLocal(val);
    return 0;
}