Open-position-after-percentage-pullback

CODE:

using WealthLab.Backtest;
using System;
using WealthLab.Core;
using WealthLab.Indicators;
using System.Collections.Generic;
using ScottPlot;

namespace WealthScript1 
{
    public class MyStrategy : UserStrategyBase
    {
        //create indicators and other objects here, this is executed prior to the main trading loop
        public override void Initialize(BarHistory bars)
        {
         StartIndex = 11;
        }

        //execute the strategy rules here, this is executed once for each bar in the backtest history
        public override void Execute(BarHistory bars, int idx)
        {
         if (!HasOpenPosition(bars, PositionType.Long))
         {
            //entry logic - #1 high is lower than previous high
            if (bars.High[idx] < bars.High[idx - 1])
            {
               //#2 - get most recent peak within the past 10 candles
               for (int n = 1; n < 11; n++)
               {
                  int checkIdx = idx - n;
                  if (bars.High[checkIdx] > bars.High[checkIdx - 1] && bars.High[checkIdx] > bars.High[checkIdx + 1])
                  {
                     //retracement must be less than 10% from this peak
                     double retracement = bars.Close[idx] - bars.High[checkIdx];
                     retracement = retracement * 100.0 / bars.High[checkIdx];
                     if (retracement > -10.0)
                     {
                        PlaceTrade(bars, TransactionType.Buy, OrderType.Stop, bars.High[idx], retracement.ToString("N2"));
                     }
                     return;
                  }
               }
            }
         }
         else
         {
            //sell after 10 bars 
            if (idx - LastOpenPosition.EntryBar >= 10)
               PlaceTrade(bars, TransactionType.Sell, OrderType.Market);
         }
        }

        //declare private variables below
    }
}