//+------------------------------------------------------------------+
//| Подсчет позиций                                                  |
//+------------------------------------------------------------------+
int CountTrades(int ot=-1)
  {
   int count=0;

   for(int i=OrdersTotal()-1; i>=0; i--)
     {
      if(OrderSelect(i,SELECT_BY_POS,MODE_TRADES))
        {
         if(OrderSymbol()==Symbol() && OrderMagicNumber()==Magic)
           {
            if(OrderType()==0 && (ot==0 || ot==-1))
               count++;
            if(OrderType()==1 && (ot==1 || ot==-1))
               count++;
           }
        }
     }
   return(count);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
double Lot(int type)
  {
   double lot=Lots;

   if(CountTrades(type)>0)
     {
      lot=NormalizeDouble(Lots*MathPow(KLot,CountTrades(type)),2);
     }

   if(lot>MaxLot)
      lot=Lots;

   return(lot);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
void CloseAll(int ot=-1)
  {
   bool cl=1;

   for(int i=OrdersTotal()-1; i>=0; i--)
     {
      if(OrderSelect(i,SELECT_BY_POS,MODE_TRADES))
        {
         if(OrderSymbol()==Symbol() && OrderMagicNumber()==Magic)
           {
            if(OrderType()==0 && (ot==0 || ot==-1))
              {
               RefreshRates();
               cl=OrderClose(OrderTicket(),OrderLots(),NormalizeDouble(Bid,_Digits),Slip,White);
              }
            if(OrderType()==1 && (ot==1 || ot==-1))
              {
               RefreshRates();
               cl=OrderClose(OrderTicket(),OrderLots(),NormalizeDouble(Ask,_Digits),Slip,White);
              }
           }
        }
     }
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int FindOrderType()
  {
   int type=0;

   for(int i=OrdersTotal()-1; i>=0; i--)
     {
      if(OrderSelect(i,SELECT_BY_POS,MODE_TRADES))
        {
         if(OrderSymbol()==Symbol() && OrderMagicNumber()==Magic)
           {
            type=OrderType();
            break;
           }
        }
     }
   return(type);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
double FindLastBuyPrice()
  {
   double p=0;

   for(int i=OrdersTotal()-1; i>=0; i--)
     {
      if(OrderSelect(i,SELECT_BY_POS,MODE_TRADES))
        {
         if(OrderSymbol()==Symbol() && OrderType()==OP_BUY && OrderMagicNumber()==Magic)
           {
            p=OrderOpenPrice();
            break;
           }
        }
     }
   return(p);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
double FindLastSellPrice()
  {
   double p=0;

   for(int i=OrdersTotal()-1; i>=0; i--)
     {
      if(OrderSelect(i,SELECT_BY_POS,MODE_TRADES))
        {
         if(OrderSymbol()==Symbol() && OrderType()==OP_SELL && OrderMagicNumber()==Magic)
           {
            p=OrderOpenPrice();
            break;
           }
        }
     }
   return(p);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
void ModifyOrders()
  {
   bool mod=1;
   double allb=0,alls=0;
   double countb=0,counts=0,tp=0,sl=0;

   for(int i=OrdersTotal()-1; i>=0; i--)
     {
      if(OrderSelect(i,SELECT_BY_POS,MODE_TRADES))
        {
         if(OrderSymbol()==Symbol() && OrderMagicNumber()==Magic)
           {
            if(OrderType()==0)
              {
               allb+=OrderOpenPrice()*OrderLots();
               countb+=OrderLots();
              }

            if(OrderType()==1)
              {
               alls+=OrderOpenPrice()*OrderLots();
               counts+=OrderLots();
              }
           }
        }
     }
   if(countb>0)
      allb=NormalizeDouble(allb/countb,_Digits);
   if(counts>0)
      alls=NormalizeDouble(alls/counts,_Digits);

   for(int i=OrdersTotal()-1; i>=0; i--)
     {
      if(OrderSelect(i,SELECT_BY_POS,MODE_TRADES))
        {
         if(OrderSymbol()==Symbol() && OrderMagicNumber()==Magic)
           {
            if(OrderType()==0)
              {
               if(TakeProfit>0)
                  tp=NormalizeDouble(allb+TakeProfit*_Point,_Digits);
               if(StopLoss>0)
                  sl=NormalizeDouble(allb-StopLoss*_Point,_Digits);
               if(OrderTakeProfit()!=tp || OrderStopLoss()!=sl)
                  mod=OrderModify(OrderTicket(),OrderOpenPrice(),sl,tp,0,Yellow);
              }
            else
               if(OrderType()==1)
                 {
                  if(TakeProfit>0)
                     tp=NormalizeDouble(alls-TakeProfit*_Point,_Digits);
                  if(StopLoss>0)
                     sl=NormalizeDouble(alls+StopLoss*_Point,_Digits);
                  if(OrderTakeProfit()!=tp || OrderStopLoss()!=sl)
                     mod=OrderModify(OrderTicket(),OrderOpenPrice(),sl,tp,0,Yellow);
                 }
           }
        }
     }
  }
//+------------------------------------------------------------------+
//| Expert tick function                                             |
//+------------------------------------------------------------------+
void OnTick()
  {
   double lim=iCustom(NULL,0,IndName2,5,Shift);
   double tom=iCustom(NULL,0,IndName2,4,Shift);

   bool buy = lim!=EMPTY_VALUE && tom>0;
   bool sell = tom!=EMPTY_VALUE && lim>0;

   if(CountTrades()<1)
     {
      if(buy)
        {
         PutOrder(0,Ask);
        }
      if(sell)
        {
         PutOrder(1,Bid);
        }
     }

   if(CountTrades()<Count)
     {
      if(FindOrderType()==0 && FindLastBuyPrice()-Ask>Step*_Point)
        {
         PutOrder(0,Ask);
         ModifyOrders();
        }

      if(FindOrderType()==1 && Bid-FindLastSellPrice()>Step*_Point)
        {
         PutOrder(1,Bid);
         ModifyOrders();
        }
     }

   if(CloseSig>0)
     {
      if(sell)
        {
         CloseAll(0);
        }
      if(buy)
        {
         CloseAll(1);
        }
     }

   Comment("\n lim: ",lim,
           "\n tom: ",tom);
  }
//+------------------------------------------------------------------+