javascript

var steps_prevVal = 1.0;
var steps_prevprevVal = 1.0;
var steps_peakLow = 0;
var steps_peakHigh = 0;
var steps_samplesSinceHighPeak = 0;
var steps_samplesSinceLowPeak = 0;
var steps = 0;

var peakMinSamplesBetween = 15;
var highLowPeakDiff = .2;
var accelerometerZNeutral = -1.1;
var accelerometerZNeutralLowOffset = -.04;
var accelerometerZNeutralHighOffset = .06;
var lastpeak = 1;

if (magnitude < steps_prevVal && steps_prevprevVal < steps_prevVal && steps_samplesSinceHighPeak > peakMinSamplesBetween && steps_prevVal > accelerometerZNeutral + accelerometerZNeutralHighOffset&& lastpeak == 1) {
        steps_peakHigh = steps_prevVal;
        steps_samplesSinceHighPeak = 0;
        if (Math.abs(steps_peakHigh - steps_peakLow) > highLowPeakDiff) {

            steps++;
            AddTapMessageRow("Steps: "+steps);
        }
        lastpeak = 0;
    }
    else
        steps_samplesSinceHighPeak++;
    if (magnitude > steps_prevVal && steps_prevprevVal > steps_prevVal && steps_samplesSinceLowPeak > peakMinSamplesBetween && steps_prevVal < accelerometerZNeutral + accelerometerZNeutralLowOffset && lastpeak == 0) {
        steps_peakLow = steps_prevVal;
        steps_samplesSinceLowPeak = 0;
        lastpeak =1;
    }
    else
        steps_samplesSinceLowPeak++;
    if (magnitude != steps_prevVal) {
        steps_prevprevVal = steps_prevVal;
        steps_prevVal = magnitude;
    }