Sample PARABOLIC SAR

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

namespace cAlgo.Robots
{
    [Robot(TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
    public class DragonPSAR : Robot
    {
        [Parameter("Min AF", DefaultValue = 0.02, MinValue = 0)]
        public double MinAF { get; set; }

        [Parameter("Max AF", DefaultValue = 0.2, MinValue = 0)]
        public double MaxAF { get; set; }

        [Parameter("Initial Volume Percent", DefaultValue = 1, MinValue = 0)]
        public double InitialVolumePercent { get; set; }

        private ParabolicSAR parabolicSAR;

        protected override void OnStart()
        {
            parabolicSAR = Indicators.ParabolicSAR(MinAF, MaxAF);
        }

        protected override void OnBar()
        {
            var volumne = Math.Floor(Account.Balance * 10 * InitialVolumePercent / 1000) * 1000;

            var position = Positions.Find("DragonPSAR");
            if (parabolicSAR.Result.Last(1) < Bars.Last(1).Close)
            {
                if (position != null && position.TradeType == TradeType.Sell)
                {
                    position.Close();
                }

                if (Positions.Count == 0)
                {
                    ExecuteMarketOrder(TradeType.Buy, Symbol.Name, volumne, "DragonPSAR", 0, 0);
                }

            }
            if (parabolicSAR.Result.Last(1) > Bars.Last(1).Close)
            {
                if (position != null && position.TradeType == TradeType.Buy)
                {
                    position.Close();
                }

                if (Positions.Count == 0)
                {
                    ExecuteMarketOrder(TradeType.Sell, Symbol.Name, volumne, "DragonPSAR", 0, 0);
                }


            }
        }

        protected override void OnTick()
        {
            // Put your core logic here
        }

        protected override void OnStop()
        {
            // Put your deinitialization logic here
        }
    }
}