Deviation Oscillator

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

namespace cAlgo
{
    [Levels(0)]
    [Indicator(IsOverlay = false, AccessRights = AccessRights.None)]
    public class mDeviationOscillator : Indicator
    {
        [Parameter("Smooth Type (sma)", DefaultValue = MovingAverageType.Simple)]
        public MovingAverageType inpSmoothType { get; set; }
        [Parameter("Smooth Period (10)", DefaultValue = 10, MinValue = 1)]
        public int inpPeriodSmooth { get; set; }
        [Parameter("HH/LL Period (20)", DefaultValue = 20, MinValue = 2)]
        public int inpPeriodHHLL { get; set; }

        [Output("Deviation Oscillator", LineColor = "Black", PlotType = PlotType.Line, LineStyle = LineStyle.Solid, Thickness = 1)]
        public IndicatorDataSeries outDeviationOscillator { get; set; }
        
        private MovingAverage _pricesmooth;
        private IndicatorDataSeries _raw, _hh, _ll, _deviation;
        

        protected override void Initialize()
        {
            _pricesmooth = Indicators.MovingAverage(Bars.ClosePrices, inpPeriodSmooth, inpSmoothType);
            _raw = CreateDataSeries();
            _hh = CreateDataSeries();
            _ll = CreateDataSeries();
            _deviation = CreateDataSeries();
        }

        public override void Calculate(int i)
        {
            _raw[i] = Bars.ClosePrices[i] - _pricesmooth.Result[i];
            _hh[i] = i>inpPeriodHHLL ? _raw.Maximum(inpPeriodHHLL) : _raw[i];
            _ll[i] = i>inpPeriodHHLL ? _raw.Minimum(inpPeriodHHLL) : _raw[i];
            _deviation[i] = _hh[i] != _ll[i] ? (200 / (_hh[i] - _ll[i])) * (_raw[i] - _ll[i]) - 100.0 : 0;
            
            outDeviationOscillator[i] = _deviation[i];
        }
    }
}