CTrader Calgo Weiss Wave Indicator

Weiss Wave.algo

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

// Calgo Weiss Wave Indicator By RLB

namespace cAlgo
{
    [Indicator(IsOverlay = false, TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]


    public class WeissWave : Indicator
    {
        [Parameter("Source")]
        // Need to see if there is a way to restrictt his to open or close... sadly calgo's API sucks
        public DataSeries Source { get; set; }

        [Parameter("Trend Length", DefaultValue = 2)]
        public int trend_length { get; set; }

        [Output("Down Trend", LineColor = "Red", PlotType = PlotType.Histogram, Thickness = 3)]
        public IndicatorDataSeries DownTrend { get; set; }

        [Output("Up Trend", LineColor = "Green", PlotType = PlotType.Histogram, Thickness = 3)]
        public IndicatorDataSeries UpTrend { get; set; }


        // Helpers
        private IndicatorDataSeries Wave;
        private IndicatorDataSeries MVol;
        private IndicatorDataSeries Mov;
        private IndicatorDataSeries Trend;


        protected override void Initialize()
        {

            // The Helpers from: https://www.tradingview.com/script/XttzkWc0-Weis-Wave-Volume-Pinescript-4/
            Mov = CreateDataSeries();
            Wave = CreateDataSeries();
            MVol = CreateDataSeries();
            Trend = CreateDataSeries();
        }

        public override void Calculate(int index)
        {
            bool isTrending = isRising(index, Source, trend_length) || isFalling(index, Source, trend_length);


            if (isRising(index, MarketSeries.Close, 1))
                Mov[index] = 1;
            else if (isFalling(index, MarketSeries.Close, 1))
                Mov[index] = -1;
            else
                Mov[index] = 0;

            if (Mov[index] != 0 && Mov[index] != Mov[index - 1])
                Trend[index] = Mov[index];
            else
                Trend[index] = Trend[index - 1];

            if (Trend[index] != Wave[index - 1] && isTrending)
                // Set Wave Index to Trend Index if Trend is not the last Wave, and we are trending
                Wave[index] = Trend[index];
            else
                Wave[index] = Wave[index - 1];


            if (Wave[index] == Wave[index - 1])
                // If Wave Is Past Wave... Increase our Volume Index
                MVol[index] = MVol[index - 1] + MarketSeries.TickVolume[index];
            else
                // New Wave?  Well Lets start Over
                MVol[index] = MarketSeries.TickVolume[index];


            if (Wave[index] == 1)
                UpTrend[index] = MVol[index];

            if (Wave[index] == -1)
                DownTrend[index] = MVol[index];
        }

        private bool isFalling(int index, DataSeries series, int length)
        {
            return series[index] < series[index - length];
        }

        private bool isRising(int index, DataSeries series, int length)
        {
            return series[index] > series[index - length];
        }


    }
}