// Downloaded From https://www.WiseStockTrader.com
#region Using declarations
using System;
using System.ComponentModel;
using System.Diagnostics;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Xml.Serialization;
using NinjaTrader.Cbi;
using NinjaTrader.Data;
using NinjaTrader.Gui.Chart;
#endregion

// This namespace holds all indicators and is required. Do not change it.
namespace NinjaTrader.Indicator
{
    /// <summary>
    /// Bill Williams Market Facilitation Index, taken from http://ta.mql4.com/indicators/bills/market_facilitation_index
    /// </summary>
    [Description("Bill Williams Market Facilitation Index")]
    public class BwMfi : Indicator
    {
        #region Variables
        // Wizard generated variables
            private double range = 1; // Default setting for Range
        // User defined variables (add any user defined variables below)
        #endregion

        /// <summary>
        /// This method is used to configure the indicator and is called once before any bar data is loaded.
        /// </summary>
        protected override void Initialize()
        {
            Add(new Plot(Color.FromKnownColor(KnownColor.Orange), PlotStyle.Bar, "MFI"));
            CalculateOnBarClose	= true;
            Overlay				= false;
            PriceTypeSupported	= false;
        }

        /// <summary>
        /// Called on each bar update event (incoming tick)
        /// </summary>
        protected override void OnBarUpdate()
        {
            // Use this method for calculating your indicator values. Assign a value to each
            // plot below by replacing 'Close[0]' with your own formula.
           if(Volume[0]>0) 	MFI.Set(Range*(High[0]-Low[0])/Volume[0]);
        }
		public override string ToString(){
			return "BwMfi";	
		}
        #region Properties
        [Browsable(false)]	// this line prevents the data series from being displayed in the indicator properties dialog, do not remove
        [XmlIgnore()]		// this line ensures that the indicator can be saved/recovered as part of a chart template, do not remove
        public DataSeries MFI
        {
            get { return Values[0]; }
        }

        [Description("")]
        [Category("Parameters")]
        public double Range
        {
            get { return range; }
            set { range = Math.Max(0, value); }
        }
        #endregion
    }
}

#region NinjaScript generated code. Neither change nor remove.
// This namespace holds all indicators and is required. Do not change it.
namespace NinjaTrader.Indicator
{
    public partial class Indicator : IndicatorBase
    {
        private BwMfi[] cacheBwMfi = null;

        private static BwMfi checkBwMfi = new BwMfi();

        /// <summary>
        /// Bill Williams Market Facilitation Index
        /// </summary>
        /// <returns></returns>
        public BwMfi BwMfi(double range)
        {
            return BwMfi(Input, range);
        }

        /// <summary>
        /// Bill Williams Market Facilitation Index
        /// </summary>
        /// <returns></returns>
        public BwMfi BwMfi(Data.IDataSeries input, double range)
        {
            checkBwMfi.Range = range;
            range = checkBwMfi.Range;

            if (cacheBwMfi != null)
                for (int idx = 0; idx < cacheBwMfi.Length; idx++)
                    if (Math.Abs(cacheBwMfi[idx].Range - range) <= double.Epsilon && cacheBwMfi[idx].EqualsInput(input))
                        return cacheBwMfi[idx];

            BwMfi indicator = new BwMfi();
            indicator.BarsRequired = BarsRequired;
            indicator.CalculateOnBarClose = CalculateOnBarClose;
            indicator.Input = input;
            indicator.Range = range;
            indicator.SetUp();

            BwMfi[] tmp = new BwMfi[cacheBwMfi == null ? 1 : cacheBwMfi.Length + 1];
            if (cacheBwMfi != null)
                cacheBwMfi.CopyTo(tmp, 0);
            tmp[tmp.Length - 1] = indicator;
            cacheBwMfi = tmp;
            Indicators.Add(indicator);

            return indicator;
        }

    }
}

// This namespace holds all market analyzer column definitions and is required. Do not change it.
namespace NinjaTrader.MarketAnalyzer
{
    public partial class Column : ColumnBase
    {
        /// <summary>
        /// Bill Williams Market Facilitation Index
        /// </summary>
        /// <returns></returns>
        [Gui.Design.WizardCondition("Indicator")]
        public Indicator.BwMfi BwMfi(double range)
        {
            return _indicator.BwMfi(Input, range);
        }

        /// <summary>
        /// Bill Williams Market Facilitation Index
        /// </summary>
        /// <returns></returns>
        public Indicator.BwMfi BwMfi(Data.IDataSeries input, double range)
        {
            return _indicator.BwMfi(input, range);
        }

    }
}

// This namespace holds all strategies and is required. Do not change it.
namespace NinjaTrader.Strategy
{
    public partial class Strategy : StrategyBase
    {
        /// <summary>
        /// Bill Williams Market Facilitation Index
        /// </summary>
        /// <returns></returns>
        [Gui.Design.WizardCondition("Indicator")]
        public Indicator.BwMfi BwMfi(double range)
        {
            return _indicator.BwMfi(Input, range);
        }

        /// <summary>
        /// Bill Williams Market Facilitation Index
        /// </summary>
        /// <returns></returns>
        public Indicator.BwMfi BwMfi(Data.IDataSeries input, double range)
        {
            if (InInitialize && input == null)
                throw new ArgumentException("You only can access an indicator with the default input/bar series from within the 'Initialize()' method");

            return _indicator.BwMfi(input, range);
        }

    }
}
#endregion