//+------------------------------------------------------------------+
//|                                                        Grids.mq4 |
//|                                              Copyright 2016, AM2 |
//|                                      http://www.forexsystems.biz |
//+------------------------------------------------------------------+
#property copyright "Copyright 2016, AM2"
#property link      "http://www.forexsystems.biz"
#property version   "1.00"
#property strict

extern int    StopLoss    = 0;   //Стоплосс ордера
extern int    TakeProfit  = 250; //Тейкпрофит ордера
extern int    Slip        = 20;  //Проскальзывание ордера
extern int    Step        = 250; //Шаг установки ордеров 
extern int    Count       = 3;   //Количество устанавливаемых ордеров
extern int    Expiration  = 300; //Bремя истечения ордера в минутах
extern int    Magic       = 111; //Магик для ордеров 
extern double Lots        = 0.1; //Лот 

bool b=true,s=true;
//+------------------------------------------------------------------+
//| Expert initialization function                                   |
//+------------------------------------------------------------------+
int OnInit()
  {
//---

//---
   return(INIT_SUCCEEDED);
  }
//+------------------------------------------------------------------+
//| Expert deinitialization function                                 |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)
  {
//---

  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
void PutOrder(int type,double price)
  {
   int    r=0;
   color clr=clrNONE;
   double sl=0,tp=0;

   if(type==1 || type==3 || type==5)
     {
      clr=Red;
      if(StopLoss>0)   sl=NormalizeDouble(price+StopLoss*Point,Digits);
      if(TakeProfit>0) tp=NormalizeDouble(price-TakeProfit*Point,Digits);
     }

   if(type==0 || type==2 || type==4)
     {
      clr=Blue;
      if(StopLoss>0)   sl=NormalizeDouble(price-StopLoss*Point,Digits);
      if(TakeProfit>0) tp=NormalizeDouble(price+TakeProfit*Point,Digits);
     }

   r=OrderSend(NULL,type,Lots,NormalizeDouble(price,Digits),Slip,sl,tp,"",Magic,TimeCurrent()+Expiration*60,clr);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int CountTrades()
  {
   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 || OrderType()==1) count++;
           }
        }
     }
   return(count);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int CountOrders(int type)
  {
   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()==type) count++;
           }
        }
     }
   return(count);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int LastDealResult()
  {
   int result=0;

   if(OrderSelect(OrdersHistoryTotal()-1,SELECT_BY_POS,MODE_HISTORY))
     {
      if(OrderSymbol()==Symbol() && OrderMagicNumber()==Magic)
        {
         if(OrderProfit()>0)
           {
            result=1;//tp  
           }
         if(OrderProfit()<0)
           {
            result=2;//sl  
           }
        }
     }
   return(result);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int LastDealType()
  {
   int type=0;

   if(OrderSelect(OrdersHistoryTotal()-1,SELECT_BY_POS,MODE_HISTORY))
     {
      if(OrderSymbol()==Symbol() && OrderMagicNumber()==Magic)
        {
         if(OrderType()==OP_BUY)
           {
            type=1;//buy  
           }
         if(OrderType()==OP_SELL)
           {
            type=2;//sell  
           }
        }
     }
   return(type);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
double LastProfitDealOpenPrice()
  {
   double price=0;

   if(OrderSelect(OrdersHistoryTotal()-1,SELECT_BY_POS,MODE_HISTORY))
     {
      if(OrderSymbol()==Symbol() && OrderMagicNumber()==Magic)
        {
         if(OrderProfit()>0) price=OrderOpenPrice();
        }
     }
   return(price);
  }
//+------------------------------------------------------------------+
//| Expert tick function                                             |
//+------------------------------------------------------------------+
void OnTick()
  {
   if(CountTrades()<1)
     {
      PutOrder(0,Ask);
      PutOrder(1,Bid);
/**/
      if(CountOrders(4)<1 && CountOrders(3)<1)
        {
         for(int i=1;i<=Count;i++)
           {
            PutOrder(4,Ask+Step*Point*i);
            PutOrder(3,Ask+Step*Point*i);
           }
        }

      if(CountOrders(5)<1 && CountOrders(2)<1)
        {
         for(int i=1;i<=Count;i++)
           {
            PutOrder(5,Ask-Step*Point*i);
            PutOrder(2,Ask-Step*Point*i);
           }
        }

     }

   if(LastDealResult()==1 && LastDealType()==1 && b)
     {
      PutOrder(2,LastProfitDealOpenPrice());
      b=false;
     }

   if(LastDealResult()==1 && LastDealType()==2 && s)
     {
      PutOrder(3,LastProfitDealOpenPrice());
      s=false;
     }
  }
//+------------------------------------------------------------------+