EA that trails my position

Hello,

you write an EA the trails the open position. For trailing stop you use "ATRStops" indicator in attachment.

1) If I set the EA to the chart the EA loads and show the indicator on chart
2) The ea checks if there is an open position
3) if there is an open buy position and the close is higher than the line, then you use line for trail (also for sell trades of curse)
4) You create an input that I can say that the position will be closed if the close is under the line,
or we modify the stoploss on broker. Position will be stop out directly on line

//+------------------------------------------------------------------+
//|                                                  ATRStops_v1.mq4 |
//|                                  Copyright © 2006, Forex-TSD.com |
//|                         Written by IgorAD,igorad2003@yahoo.co.uk |  
//|            http://finance.groups.yahoo.com/group/TrendLaboratory |                                      
//+------------------------------------------------------------------+
#property copyright "Copyright © 2006, Forex-TSD.com "
#property link      "http://www.forex-tsd.com/"
//----
#property indicator_chart_window
#property indicator_buffers 2
#property indicator_color1 Blue
#property indicator_color2 Red
//---- input parameters
extern int    Length=8;
extern int    ATRperiod=14;
extern double Kv=3;
//---- indicator buffers
double UpBuffer1[];
double DnBuffer1[];
double smin[];
double smax[];
double trend[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
  int init()
  {
   string short_name;
//---- indicator line
   SetIndexStyle(0,DRAW_LINE);
   SetIndexStyle(1,DRAW_LINE);
   IndicatorBuffers(5);
   SetIndexBuffer(0,UpBuffer1);
   SetIndexBuffer(1,DnBuffer1);
   SetIndexBuffer(2,smin);
   SetIndexBuffer(3,smax);
   SetIndexBuffer(4,trend);
//---- name for DataWindow and indicator subwindow label
   short_name="ATRStops("+Length+")";
   IndicatorShortName(short_name);
   SetIndexLabel(0,"Up");
   SetIndexLabel(1,"Dn");
//----
   SetIndexDrawBegin(0,Length);
   SetIndexDrawBegin(1,Length);
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| ATRStops_v1                                                      |
//+------------------------------------------------------------------+
int start()
  {
   int shift,limit, counted_bars=IndicatorCounted();
//----
   if(counted_bars > 0) limit=Bars-counted_bars;
   if(counted_bars < 0) return(0);
   if(counted_bars ==0) limit=Bars-Length-1;
//----
   for(shift=limit;shift>=0;shift--)
     {
      smin[shift]=-100000; smax[shift]=100000;
      for(int i=Length-1;i>=0;i--)
        {
         smin[shift]=MathMax( smin[shift], High[shift+i] - Kv*iATR(NULL,0,ATRperiod,shift+i));
         smax[shift]=MathMin( smax[shift], Low[shift+i] + Kv*iATR(NULL,0,ATRperiod,shift+i));
        }
      trend[shift]=trend[shift+1];
      if(Close[shift] > smax[shift+1])trend[shift]= 1;
      if(Close[shift] < smin[shift+1])trend[shift]=-1;
      if(trend[shift] >0)
        {
         if(smin[shift]<smin[shift+1])smin[shift]=smin[shift+1];
         UpBuffer1[shift]=smin[shift];
         DnBuffer1[shift]=EMPTY_VALUE;
        }
      if(trend[shift] <0)
        {
         if(smax[shift]>smax[shift+1])smax[shift]=smax[shift+1];
         UpBuffer1[shift]=EMPTY_VALUE;
         DnBuffer1[shift]=smax[shift];
        }
     }
   return(0);
  }
//+------------------------------------------------------------------+