//+------------------------------------------------------------------+
//|                                           Trailing_EA.mq4        |
//|                                              Copyright © 2007    |
//|                                                                  |
//|    Written by Robert Hill aka MrPip for Forex-tsd group          |
//|                                                                  |
//|  Includes 6 different types of trailing stops                    |
//|  Code from IgorAD, KimIV and MrPip modified to be functions      |
//|                                                                  |
//| Version 1.1                                                      |
//|   Added pSAR trailing stop                                       |
//|                                                                  |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2007, Robert Hill"
#include <stdlib.mqh>

extern string  Expert_Name    = "Trailing";

extern string  st6 = "--Profit Controls--";
extern double  StopLoss = 100;          // Maximum pips willing to lose per position.

extern string  tsp0 = "--Trailing Stop Types--";
extern string  tsp1 = " 1 = Trail immediately";
extern string  tsp2 = " 2 = Wait to trail";
extern string  tsp3 = " 3 = Uses 3 levels before trail";
extern string  tsp4 = " 4 = Breakeven + Lockin";
extern string  tsp5 = " 5 = Step trail";
extern string  tsp6 = " 6 = EMA trail";
extern string  tsp7 = " 7 = pSAR trail";
extern int     TrailingStopType = 4;

extern string  ts2 = "Settings for Type 2";
extern double  TrailingStop = 15;      // Change to whatever number of pips you wish to trail your position with.

extern string  ts3 = "Settings for Type 3";
extern double  FirstMove = 20;        // Type 3  first level pip gain
extern double  FirstStopLoss = 50;    // Move Stop to Breakeven
extern double  SecondMove = 30;       // Type 3 second level pip gain
extern double  SecondStopLoss = 30;   // Move stop to lock is profit
extern double  ThirdMove = 40;        // type 3 third level pip gain
extern double  TrailingStop3 = 20;    // Move stop and trail from there

extern string  ts4 = "Settings for Type 4";
extern double  BreakEven = 30;
extern int     LockInPips = 1;        // Profit Lock in pips

extern string  ts5 = "Settings for Type 5";
extern int     eTrailingStop   = 10;
extern int     eTrailingStep   = 2;

extern string  ts6 = "Settings for Type 6";
extern int     EMATimeFrame    =  30;
extern int     Price           =  0;
extern int     EMAPeriod       = 13;
extern int     EMAShift        =  2;    
extern int     InitialStop     =  0;
 
extern string  ts7 = "Settings for Type 7";
extern double  StepParabolic = 0.02;
extern double  MaxParabolic  = 0.2;
extern int     Interval      = 5;

//+---------------------------------------------------+
//|General controls                                   |
//+---------------------------------------------------+
string setup;

//+---------------------------------------------------+
//|  Indicator values for signals and filters         |
//|  Add or Change to test your system                |
//+---------------------------------------------------+

 int SignalCandle = 1;
//+------------------------------------------------------------------+
//| expert initialization function                                   |
//+------------------------------------------------------------------+
int init()
  {
   
   setup=Expert_Name + Symbol() + "_" + func_TimeFrame_Val2String(func_TimeFrame_Const2Val(Period()));
   
//----
   return(0);
  }
  
//+------------------------------------------------------------------+
//| expert deinitialization function                                 |
//+------------------------------------------------------------------+
int deinit()
  {
   return(0);
  }

//+------------------------------------------------------------------+
//| The functions from this point to the start function are where    |
//| changes are made to test other systems or strategies.            |
//|+-----------------------------------------------------------------+

//+------------------------------------------------------------------+
//| expert start function                                            |
//+------------------------------------------------------------------+
int start()
  {
//---- 
   
//+------------------------------------------------------------------+
//| Check for Open Position                                          |
//+------------------------------------------------------------------+

     HandleOpenPositions();
     
//----
   return(0);
  }

//+------------------------------------------------------------------+
//| Handle Open Positions                                            |
//| Check if any open positions need to be closed or modified        |
//+------------------------------------------------------------------+
int HandleOpenPositions()
{
   int cnt;
   
   for(cnt=OrdersTotal()-1;cnt>=0;cnt--)
   {
      OrderSelect (cnt, SELECT_BY_POS, MODE_TRADES);
      if ( OrderSymbol() != Symbol()) continue;
//      if ( OrderMagicNumber() != MagicNumber)  continue;
      
      if(OrderType() == OP_BUY)
      {
            
               HandleTrailingStop(OP_BUY,OrderTicket(),OrderOpenPrice(),OrderStopLoss(),OrderTakeProfit());
      }

      if(OrderType() == OP_SELL)
      {
               HandleTrailingStop(OP_SELL,OrderTicket(),OrderOpenPrice(),OrderStopLoss(),OrderTakeProfit());
      }
   }
}

//+------------------------------------------------------------------+
//| HandleTrailingStop                                               |
//| Type 1 moves the stoploss without delay.                         |
//| Type 2 waits for price to move the amount of the trailStop       |
//| before moving stop loss then moves like type 1                   |
//| Type 3 uses up to 3 levels for trailing stop                     |
//|      Level 1 Move stop to 1st level                              |
//|      Level 2 Move stop to 2nd level                              |
//|      Level 3 Trail like type 1 by fixed amount other than 1      |
//| Type 4 Move stop to breakeven + Lockin, no trail                 |
//| Type 5 uses steps for 1, every step pip move moves stop 1 pip    |
//| Type 6 Uses EMA to set trailing stop                             |
//+------------------------------------------------------------------+
int HandleTrailingStop(int type, int ticket, double op, double os, double tp)
{
   switch (TrailingStopType)
   {
     case 1 : Immediate_TrailingStop (type, ticket, op, os, tp);
              break;
     case 2 : Delayed_TrailingStop (type, ticket, op, os, tp);
              break;
     case 3 : ThreeLevel_TrailingStop (type, ticket, op, os, tp);
              break;
     case 4 : BreakEven_TrailingStop (type, ticket, op, os, tp);
              break;
	  case 5 : eTrailingStop (type, ticket, op, os, tp);
              break;
	  case 6 : EMA_TrailingStop (type, ticket, op, os, tp);
              break;
	  case 7 : pSAR_TrailingStop (type, ticket, op, os, tp);
              break;
	}
   return(0);
}

int ModifyOrder(int ord_ticket,double op, double price,double tp, color mColor)
{
    int CloseCnt, err;
    
    CloseCnt=0;
    while (CloseCnt < 3)
    {
       if (OrderModify(ord_ticket,op,price,tp,0,mColor))
       {
         CloseCnt = 3;
       }
       else
       {
          err=GetLastError();
          Print(CloseCnt," Error modifying order : (", err , ") " + ErrorDescription(err));
         if (err>0) CloseCnt++;
       }
    }
}

double ValidStopLoss(int type, double price, double SL)
{

   double mySL;
   double minstop, pp;
   
   pp = MarketInfo(Symbol(), MODE_POINT);
   minstop = MarketInfo(Symbol(),MODE_STOPLEVEL);
   
   mySL = SL;
   if (type == OP_BUY)
   {
		 if((price - mySL) < minstop*pp) mySL = price - minstop*pp;
   }
   if (type == OP_SELL)
   {
       if((mySL-price) < minstop*pp)  mySL = price + minstop*pp;  
   }

   return(NormalizeDouble(mySL,MarketInfo(Symbol(), MODE_DIGITS)));   
}
//+------------------------------------------------------------------+
//|                                           BreakEvenExpert_v1.mq4 |
//|                                  Copyright © 2006, Forex-TSD.com |
//|                         Written by IgorAD,igorad2003@yahoo.co.uk |   
//|            http://finance.groups.yahoo.com/group/TrendLaboratory |                                      
//+------------------------------------------------------------------+
void BreakEven_TrailingStop(int type, int ticket, double op, double os, double tp)
{

   int digits;
   double pBid, pAsk, pp, BuyStop, SellStop;

   pp = MarketInfo(Symbol(), MODE_POINT);
   digits = MarketInfo(Symbol(), MODE_DIGITS);
   
  if (type==OP_BUY)
  {
    pBid = MarketInfo(Symbol(), MODE_BID);
    if ( pBid-op > pp*BreakEven ) 
    {
       BuyStop = op + LockInPips * pp;
       if (digits > 0) BuyStop = NormalizeDouble( BuyStop, digits);
		 BuyStop = ValidStopLoss(OP_BUY,pBid, BuyStop);   
       if (os < BuyStop) ModifyOrder(ticket,op,BuyStop,tp,LightGreen);
		 return;
	 }
  }
  if (type==OP_SELL)
  {
    pAsk = MarketInfo(Symbol(), MODE_ASK);
    if ( op - pAsk > pp*BreakEven ) 
    {
       SellStop = op - LockInPips * pp;
       if (digits > 0) SellStop = NormalizeDouble( SellStop, digits);
       SellStop = ValidStopLoss(OP_SELL, pAsk, SellStop);  
       if (os > SellStop) ModifyOrder(ticket,op,SellStop,tp,DarkOrange);
		 return;
    }
  }   

}

//+------------------------------------------------------------------+
//|                                                   e-Trailing.mq4 |
//|                                           Ким Игорь В. aka KimIV |
//|                                              http://www.kimiv.ru |
//|                                                                  |
//| 12.09.2005 Автоматический Trailing Stop всех открытых позиций    |
//|            Вешать только на один график                          |
//+------------------------------------------------------------------+
void eTrailingStop(int type, int ticket, double op, double os, double tp)
{

  int digits;
  double pBid, pAsk, pp, BuyStop, SellStop;

  pp = MarketInfo(Symbol(), MODE_POINT);
  digits = MarketInfo(Symbol(), MODE_DIGITS) ;
  if (type==OP_BUY)
  {
    pBid = MarketInfo(Symbol(), MODE_BID);
    if ((pBid-op)>eTrailingStop*pp)
    {
      if (os<pBid-(eTrailingStop+eTrailingStep-1)*pp)
      {
        BuyStop = pBid-eTrailingStop*pp;
        if (digits > 0) BuyStop = NormalizeDouble( BuyStop, digits);
		  BuyStop = ValidStopLoss(OP_BUY, pBid, BuyStop);   
        ModifyOrder(ticket,op,BuyStop,tp,LightGreen);
        return;
      }
    }
  }
  if (type==OP_SELL)
  {
    pAsk = MarketInfo(Symbol(), MODE_ASK);
    if (op - pAsk > eTrailingStop*pp)
    {
      if (os > pAsk + (eTrailingStop + eTrailingStep-1)*pp || os==0)
      {
        SellStop = pAsk + eTrailingStop * pp;
        if (digits > 0) SellStop = NormalizeDouble( SellStop, digits);
        SellStop = ValidStopLoss(OP_SELL, pAsk, SellStop);  
        ModifyOrder(ticket,op,SellStop,tp,DarkOrange);
        return;
      }
    }
  }

}

//+------------------------------------------------------------------+
//|                                           EMATrailingStop_v1.mq4 |
//|                                  Copyright © 2006, Forex-TSD.com |
//|                         Written by IgorAD,igorad2003@yahoo.co.uk |   
//|            http://finance.groups.yahoo.com/group/TrendLaboratory |                                      
//+------------------------------------------------------------------+
void EMA_TrailingStop(int type, int ticket, double op, double os, double tp)
{
   int digits;
   double pBid, pAsk, pp, BuyStop, SellStop, ema;

   pp = MarketInfo(Symbol(), MODE_POINT);
   digits = MarketInfo(Symbol(), MODE_DIGITS) ;
   ema = iMA(Symbol(),EMATimeFrame,EMAPeriod,0,MODE_EMA,Price,EMAShift);
   
   if (type==OP_BUY) 
   {
	   BuyStop = ema;
      pBid = MarketInfo(Symbol(),MODE_BID);
		if(os == 0 && InitialStop>0 ) BuyStop = pBid-InitialStop*pp;
		if (digits > 0) BuyStop = NormalizeDouble(BuyStop, digits); 
		BuyStop = ValidStopLoss(OP_BUY, pBid, BuyStop);   
		if ((op <= BuyStop && BuyStop > os) || os==0) 
		{
          ModifyOrder(ticket,op,BuyStop,tp,LightGreen);
			 return;
      }
   }   

   if (type==OP_SELL)
   {
	   SellStop = ema;
      pAsk = MarketInfo(Symbol(),MODE_ASK);
      if (os==0 && InitialStop > 0) SellStop = pAsk+InitialStop*pp;
		if (digits > 0) SellStop = NormalizeDouble(SellStop, digits); 
		SellStop = ValidStopLoss(OP_SELL, pAsk, SellStop);
      if( (op >= SellStop && os > SellStop) || os==0) 
      {
          ModifyOrder(ticket,op,SellStop,tp,DarkOrange);
			 return;
      }
   }
}

//+------------------------------------------------------------------+
//|                                                b-TrailingSAR.mqh |
//|                                           Ким Игорь В. aka KimIV |
//|                                              http://www.kimiv.ru |
//|                                                                  |
//|    21.11.2005  Библиотека функций трала по параболику.           |
//|  Для использования добавить строку в модуле start                |
//|  if (UseTrailing) TrailingPositions();                           |
//+------------------------------------------------------------------+
void pSAR_TrailingStop(int type, int ticket, double op, double os, double tp)
{
   int digits;
   double pBid, pAsk, pp, BuyStop, SellStop, spr;
   double sar1, sar2;
  
   pp = MarketInfo(Symbol(), MODE_POINT);
   digits = MarketInfo(Symbol(), MODE_DIGITS) ;
   pBid = MarketInfo(Symbol(), MODE_BID);
   pAsk = MarketInfo(Symbol(), MODE_ASK);
   sar1=iSAR(NULL, 0, StepParabolic, MaxParabolic, 1);
   sar2=iSAR(NULL, 0, StepParabolic, MaxParabolic, 2);
   spr = pAsk - pBid;
   if (digits > 0) spr = NormalizeDouble(spr, digits); 
   
   if (type==OP_BUY)
   {
     pBid = MarketInfo(Symbol(), MODE_BID);
     if (sar2 < sar1)
     {
        BuyStop = sar1-Interval*pp;
        if (digits > 0) BuyStop = NormalizeDouble(BuyStop, digits); 
	     BuyStop = ValidStopLoss(OP_BUY, pBid, BuyStop);   
        if (os<BuyStop) ModifyOrder(ticket,op,BuyStop,tp,LightGreen);
     }
   }
   if (type==OP_SELL)
   {
     if (sar2 > sar1)
     {
        SellStop = sar1 + Interval * pp + spr;
        if (digits > 0) SellStop = NormalizeDouble(SellStop, digits); 
	     SellStop = ValidStopLoss(OP_SELL, pAsk, SellStop);   
        if (os>SellStop || os==0) ModifyOrder(ticket,op,SellStop,tp,DarkOrange);
     }
   }
}

//+------------------------------------------------------------------+
//|                                      ThreeLevel_TrailingStop.mq4 |
//|                                  Copyright © 2006, Forex-TSD.com |
//|                         Written by MrPip,robydoby314@yahoo.com   |   
//|                                                                  |
//| Uses up to 3 levels for trailing stop                            |
//|      Level 1 Move stop to 1st level                              |
//|      Level 2 Move stop to 2nd level                              |
//|      Level 3 Trail like type 1 by fixed amount other than 1      |
//+------------------------------------------------------------------+
void ThreeLevel_TrailingStop(int type, int ticket, double op, double os, double tp)
{

   int digits;
   double pBid, pAsk, pp, BuyStop, SellStop;

   pp = MarketInfo(Symbol(), MODE_POINT);
   digits = MarketInfo(Symbol(), MODE_DIGITS) ;

   if (type == OP_BUY)
   {
      pBid = MarketInfo(Symbol(), MODE_BID);
      if (pBid - op > FirstMove * pp)
      {
         BuyStop = op + FirstMove*pp - FirstStopLoss * pp;
         if (digits > 0) BuyStop = NormalizeDouble(BuyStop, digits); 
		   BuyStop = ValidStopLoss(OP_BUY, pBid, BuyStop);   
         if (os < BuyStop) ModifyOrder(ticket,op,BuyStop,tp,LightGreen);
      }
              
      if (pBid - op > SecondMove * pp)
      {
         BuyStop = op + SecondMove*pp - SecondStopLoss * pp;
         if (digits > 0) BuyStop = NormalizeDouble(BuyStop, digits); 
		   BuyStop = ValidStopLoss(OP_BUY, pBid, BuyStop);   
         if (os < BuyStop) ModifyOrder(ticket,op,BuyStop,tp,LightGreen);
      }
                
      if (pBid - op > ThirdMove * pp)
      {
         BuyStop = pBid  - ThirdMove*pp;
         if (digits > 0) BuyStop = NormalizeDouble(BuyStop, digits); 
		   BuyStop = ValidStopLoss(OP_BUY, pBid, BuyStop);   
         if (os < BuyStop) ModifyOrder(ticket,op,BuyStop,tp,LightGreen);
      }
   }
       
    if (type ==  OP_SELL)
    {
        pAsk = MarketInfo(Symbol(), MODE_ASK);
        if (op - pAsk > FirstMove * pp)
        {
           SellStop = op - FirstMove * pp + FirstStopLoss * pp;
           if (digits > 0) SellStop = NormalizeDouble(SellStop, digits); 
		     SellStop = ValidStopLoss(OP_SELL, pAsk, SellStop);   
           if (os > SellStop) ModifyOrder(ticket,op,SellStop,tp,DarkOrange);
        }
        if (op - pAsk > SecondMove * pp)
        {
           SellStop = op - SecondMove * pp + SecondStopLoss * pp;
           if (digits > 0) SellStop = NormalizeDouble(SellStop, digits); 
		     SellStop = ValidStopLoss(OP_SELL, pAsk, SellStop);   
           if (os > SellStop) ModifyOrder(ticket,op,SellStop,tp,DarkOrange);
        }
        if (op - pAsk > ThirdMove * pp)
        {
           SellStop = pAsk + ThirdMove * pp;               
           if (digits > 0) SellStop = NormalizeDouble(SellStop, digits); 
		     SellStop = ValidStopLoss(OP_SELL, pAsk, SellStop);   
           if (os > SellStop) ModifyOrder(ticket,op,SellStop,tp,DarkOrange);
        }
    }

}

//+------------------------------------------------------------------+
//|                                       Immediate_TrailingStop.mq4 |
//|                                  Copyright © 2006, Forex-TSD.com |
//|                         Written by MrPip,robydoby314@yahoo.com   |
//|                                                                  |   
//| Moves the stoploss without delay.                                |
//+------------------------------------------------------------------+
void Immediate_TrailingStop(int type, int ticket, double op, double os, double tp)
{

   int digits;
   double pt, pBid, pAsk, pp, BuyStop, SellStop;

   pp = MarketInfo(Symbol(), MODE_POINT);
   digits = MarketInfo(Symbol( ), MODE_DIGITS);
   
   if (type==OP_BUY)
   {
     pBid = MarketInfo(Symbol(), MODE_BID);
     pt = StopLoss * pp;
     if(pBid-os > pt)
     {
       BuyStop = pBid - pt;
       if (digits > 0) BuyStop = NormalizeDouble( BuyStop, digits);
		 BuyStop = ValidStopLoss(OP_BUY,pBid, BuyStop);   
       if (os < BuyStop) ModifyOrder(ticket,op,BuyStop,tp,LightGreen);
		 return;
	  }
   }
   if (type==OP_SELL)
   {
     pAsk = MarketInfo(Symbol(), MODE_ASK);
     pt = StopLoss * pp;
     if(os - pAsk > pt)
     {
       SellStop = pAsk + pt;
       if (digits > 0) SellStop = NormalizeDouble( SellStop, digits);
       SellStop = ValidStopLoss(OP_SELL, pAsk, SellStop);  
       if (os > SellStop) ModifyOrder(ticket,op,SellStop,tp,DarkOrange);
		 return;
     }
   }   
}

//+------------------------------------------------------------------+
//|                                         Delayed_TrailingStop.mq4 |
//|                                  Copyright © 2006, Forex-TSD.com |
//|                         Written by MrPip,robydoby314@yahoo.com   |
//|                                                                  |   
//| Waits for price to move the amount of the TrailingStop           |
//| Moves the stoploss pip for pip after delay.                      |
//+------------------------------------------------------------------+
void Delayed_TrailingStop(int type, int ticket, double op, double os, double tp)
{
   int digits;
   double pt, pBid, pAsk, pp, BuyStop, SellStop;

   pp = MarketInfo(Symbol(), MODE_POINT);
   pt = TrailingStop * pp;
   digits = MarketInfo(Symbol(), MODE_DIGITS);
   
   if (type==OP_BUY)
   {
     pBid = MarketInfo(Symbol(), MODE_BID);
     BuyStop = pBid - pt;
     if (digits > 0) BuyStop = NormalizeDouble( BuyStop, digits);
	  BuyStop = ValidStopLoss(OP_BUY,pBid, BuyStop);   
     if (pBid-op > pt && os < BuyStop) ModifyOrder(ticket,op,BuyStop,tp,LightGreen);
	  return;
   }
   if (type==OP_SELL)
   {
     pAsk = MarketInfo(Symbol(), MODE_ASK);
     pt = TrailingStop * pp;
     SellStop = pAsk + pt;
     if (digits > 0) SellStop = NormalizeDouble( SellStop, digits);
     SellStop = ValidStopLoss(OP_SELL, pAsk, SellStop);  
     if (op - pAsk > pt && os > SellStop) ModifyOrder(ticket,op,SellStop,tp,DarkOrange);
	  return;
   }   
}

//+------------------------------------------------------------------+
//| Time frame interval appropriation  function                      |
//+------------------------------------------------------------------+

int func_TimeFrame_Const2Val(int Constant ) {
   switch(Constant) {
      case 1:  // M1
         return(1);
      case 5:  // M5
         return(2);
      case 15:
         return(3);
      case 30:
         return(4);
      case 60:
         return(5);
      case 240:
         return(6);
      case 1440:
         return(7);
      case 10080:
         return(8);
      case 43200:
         return(9);
   }
}

//+------------------------------------------------------------------+
//| Time frame string appropriation  function                               |
//+------------------------------------------------------------------+

string func_TimeFrame_Val2String(int Value ) {
   switch(Value) {
      case 1:  // M1
         return("PERIOD_M1");
      case 2:  // M1
         return("PERIOD_M5");
      case 3:
         return("PERIOD_M15");
      case 4:
         return("PERIOD_M30");
      case 5:
         return("PERIOD_H1");
      case 6:
         return("PERIOD_H4");
      case 7:
         return("PERIOD_D1");
      case 8:
         return("PERIOD_W1");
      case 9:
         return("PERIOD_MN1");
   	default: 
   		return("undefined " + Value);
   }
}