TrendValue indicator

using System;
using cAlgo.API;
using cAlgo.API.Internals;
using cAlgo.API.Indicators;
using cAlgo.Indicators;

namespace cAlgo
{
    [Indicator(IsOverlay = true, TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
    public class mTrendValue : Indicator
    {
        [Parameter("Range Period (10)", DefaultValue = 10, MinValue = 1, Group = "TrendValue")]
        public int inpRangePeriod { get; set; }
        [Parameter("ATR Period (10)", DefaultValue = 10, MinValue = 1, Group = "TrendValue")]
        public int inpATRPeriods { get; set; }
        [Parameter("ATR Sensitivity (1.618)", DefaultValue = 1.618, MinValue = 0.382, Group = "TrendValue")]
        public double inpATRSensitivity { get; set; }
        [Parameter("Smooth Type (sma)", DefaultValue = MovingAverageType.Simple, Group = "TrendValue")]
        public MovingAverageType inpSmoothType { get; set; }

        [Output("Trend Value", Thickness = 2, LineColor = "FF02AFF1")]
        public IndicatorDataSeries outTrendValue { get; set; }

        private MovingAverage _smah, _smal;
        private AverageTrueRange _atr;
        private IndicatorDataSeries _highSensivity, _lowSensivity, _trend, _tv;


        protected override void Initialize()
        {
            _smah = Indicators.MovingAverage(Bars.HighPrices, inpRangePeriod, inpSmoothType);
            _smal = Indicators.MovingAverage(Bars.LowPrices, inpRangePeriod, inpSmoothType);
            _atr = Indicators.AverageTrueRange(inpATRPeriods, inpSmoothType);
            _highSensivity = CreateDataSeries();
            _lowSensivity = CreateDataSeries();
            _trend = CreateDataSeries();
            _tv = CreateDataSeries();
        }

        public override void Calculate(int i)
        {
            _highSensivity[i] = _smah.Result[i] * (1 + 0 / 100) + _atr.Result[i] * inpATRSensitivity;
            _lowSensivity[i] = _smal.Result[i] * (1 - 0 / 100) - _atr.Result[i] * inpATRSensitivity;

            if (i < inpRangePeriod)
            {
                _trend[i] = +1;
                _tv[i] = Bars.ClosePrices[i];
                return;
            }

            _trend[i] = _trend[i - 1];

            if (Bars.ClosePrices[i] > _highSensivity[i - 1])
                _trend[i] = +1;
            if (Bars.ClosePrices[i] < _lowSensivity[i - 1])
                _trend[i] = -1;

            if (_trend[i] > 0)
            {
                if (_lowSensivity[i] < _lowSensivity[i - 1])
                    _lowSensivity[i] = _lowSensivity[i - 1];
                _tv[i] = _lowSensivity[i];
            }
            if (_trend[i] < 0)
            {
                if (_highSensivity[i] > _highSensivity[i - 1])
                    _highSensivity[i] = _highSensivity[i - 1];
                _tv[i] = _highSensivity[i];
            }

            outTrendValue[i] = _tv[i];
        }
    }
}