Absolute Price Oscillator (APO)

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

namespace cAlgo
{
    [Levels(0)]
    [Indicator(IsOverlay = false, AutoRescale = true, AccessRights = AccessRights.None)]
    public class mAPO : Indicator 
    {
        [Parameter("Fast Period (10)", DefaultValue = 10)]
        public int inpPeriodFast { get; set; }
        [Parameter("Slow Period (20)", DefaultValue = 20)]
        public int inpPeriodSlowt { get; set; }

        [Output("Delta", LineColor = "Black", PlotType = PlotType.Line, LineStyle = LineStyle.Solid, Thickness = 1)]
        public IndicatorDataSeries outDelta { get; set; }
        [Output("Fast", LineColor = "Red", PlotType = PlotType.Line, LineStyle = LineStyle.Solid, Thickness = 1)]
        public IndicatorDataSeries outFast { get; set; }
        [Output("Slow", LineColor = "Green", PlotType = PlotType.Line, LineStyle = LineStyle.Solid, Thickness = 1)]
        public IndicatorDataSeries outSlow { get; set; }
        
        private MovingAverage _fast, _slow;
        

        protected override void Initialize()
        {
            _fast = Indicators.MovingAverage(Bars.ClosePrices, inpPeriodFast, MovingAverageType.Exponential);
            _slow = Indicators.MovingAverage(Bars.ClosePrices, inpPeriodSlowt, MovingAverageType.Exponential);
        }

        public override void Calculate(int i)
        {
            outDelta[i] = _fast.Result[i] - _slow.Result[i];
            outFast[i] = Bars.ClosePrices[i] - _fast.Result[i];
            outSlow[i] = Bars.ClosePrices[i] - _slow.Result[i];
        }
    }
}