pivot points intra day

using System;
using cAlgo.API;
 
namespace cAlgo.Indicators
{
    [Indicator(IsOverlay = true, AccessRights = AccessRights.None)]
    public class PivotPointsIntraDay : Indicator
    {
        private double _close;
        private double _higher;
        private double _lower;
 
        #region Output
 
        [Output("Pivot", LineStyle = LineStyle.Lines)]
        public IndicatorDataSeries Pivot { get; set; }
 
        [Output("R1", LineStyle = LineStyle.Lines, Color = Colors.Blue)]
        public IndicatorDataSeries R1 { get; set; }
 
        [Output("R2", LineStyle = LineStyle.Lines, Color = Colors.Blue)]
        public IndicatorDataSeries R2 { get; set; }
 
        [Output("R3", LineStyle = LineStyle.Lines, Color = Colors.Blue)]
        public IndicatorDataSeries R3 { get; set; }
 
 
        [Output("S1", LineStyle = LineStyle.Lines, Color = Colors.Red)]
        public IndicatorDataSeries S1 { get; set; }
 
        [Output("S2", LineStyle = LineStyle.Lines, Color = Colors.Red)]
        public IndicatorDataSeries S2 { get; set; }
 
        [Output("S3", PlotType = PlotType.Line, LineStyle = LineStyle.Lines, Color = Colors.Red)]
        public IndicatorDataSeries S3 { get; set; }
 
 
        #endregion
 
        #region Input Parameters
 
        [Parameter("Number of Pivots", DefaultValue = 3, MinValue = 1, MaxValue = 3)]
        public int NoPiv { get; set; }
 
        [Parameter("DrawingWidth", DefaultValue = 50, MaxValue = 100)]
        public int DrawingWidth { get; set; }
 
        #endregion
 
        public override void Calculate(int index)
        {
            DateTime currentOpenTime = MarketSeries.OpenTime[index];
            DateTime previousOpenTime = MarketSeries.OpenTime[index - 1];
            DateTime today = DateTime.Now;
            DateTime yesterday = DateTime.Now.AddDays(-1);
 
            // Initialize High & Low
            if (currentOpenTime.Day == yesterday.Day && previousOpenTime.Day != yesterday.Day)
            {
                _higher = MarketSeries.High[index];
                _lower = MarketSeries.Low[index];
            }
 
            // Calculate High & Low of previous day
            if ((currentOpenTime.Day == yesterday.Day && today.DayOfWeek != DayOfWeek.Monday) ||
            (today.DayOfWeek == DayOfWeek.Monday && currentOpenTime.DayOfYear == today.AddDays(-3).Day))
            {
                if (MarketSeries.High[index] > _higher)
                {
                    _higher = MarketSeries.High[index];
                }
                if (MarketSeries.Low[index] < _lower)
                {
                    _lower = MarketSeries.Low[index];
                }
            }
 
            // Set Close of previous day - Close of Last Bar of prevous Day
            if (previousOpenTime.Day == yesterday.Day && currentOpenTime.Day == today.Day)
            {
                _close = MarketSeries.Close[index - 1];
            }
             
            // Only show output in todays timeframe
            if (currentOpenTime.Date != today.Date) return;
             
            // Calculate output
            Pivot[index] = (_higher + _lower + _close)/3;
             
            R1[index] = 2*Pivot[index] - _lower;
            S1[index] = 2*Pivot[index] - _higher;
             
            // Display additional pivots according to input
            if (NoPiv >= 2)
            {
                R2[index] = Pivot[index] + (_higher - _lower);
                S2[index] = Pivot[index] - (_higher - _lower);
            }
            if (NoPiv >= 3)
            {
                R3[index] = _higher + 2*(Pivot[index] - _lower);
                S3[index] = _lower - 2*(_higher - Pivot[index]);
            }
        }
    }
}