MACD Sample_v3

//+------------------------------------------------------------------+
//|                                                  MACD Sample.mq4 |
//|                      Copyright © 2004, MetaQuotes Software Corp. |
//|                                       http://www.metaquotes.net/ |
//+------------------------------------------------------------------+

extern double TakeProfit = 50;
extern double Lots = 0.1;
extern double TrailingStop = 30;
extern double MACDOpenLevel=3;
extern double MACDCloseLevel=2;
extern double MATrendPeriod=26;
double Points;
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int init ()
  {
   Points = MarketInfo (Symbol(), MODE_POINT);
//----
   return(0);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int deinit()
  {
   return(0);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int start()
  {
   double MacdCurrent=0, MacdPrevious=0, SignalCurrent=0;
   double SignalPrevious=0, MaCurrent=0, MaPrevious=0;
   int cnt=0, total;
// ïåðâè÷íûå ïðîâåðêè äàííûõ
// âàæíî óäîñòîâåðèòüñÿ ÷òî ýêñïåðò ðàáîòàåò íà íîðìàëüíîì ãðàôèêå è
// ïîëüçîâàòåëü ïðàâèëüíî âûñòàâèë âíåøíèå ïåðåìåííûå (Lots, StopLoss,
// TakeProfit, TrailingStop)
// â íàøåì ñëó÷àå ïðîâåðÿåì òîëüêî TakeProfit
   if(Bars<100)
     {
      Print("bars less than 100");
      return(0);  // íà ãðàôèêå ìåíåå 100 áàðîâ
     }
   if(TakeProfit<10)
     {
      Print("TakeProfit less than 10");
      return(0);  // ïðîâåðÿåì TakeProfit
     }
// ðàäè óïðîùåíèÿ è óñêîðåíèÿ êîäà, ñîõðàíèì íåîáõîäèìûå
// äàííûå èíäèêàòîðîâ âî âðåìåííûõ ïåðåìåííûõ
   MacdCurrent=iMACD(NULL,0,12,26,9,PRICE_CLOSE,MODE_MAIN,0);
   MacdPrevious=iMACD(NULL,0,12,26,9,PRICE_CLOSE,MODE_MAIN,1);
   SignalCurrent=iMACD(NULL,0,12,26,9,PRICE_CLOSE,MODE_SIGNAL,0);
   SignalPrevious=iMACD(NULL,0,12,26,9,PRICE_CLOSE,MODE_SIGNAL,1);
   MaCurrent=iMA(NULL,0,MATrendPeriod,MODE_EMA,0,PRICE_CLOSE,0);
   MaPrevious=iMA(NULL,0,MATrendPeriod,MODE_EMA,0,PRICE_CLOSE,1);
// òåïåðü íàäî îïðåäåëèòüñÿ - â êàêîì ñîñòîÿíèè òîðãîâûé òåðìèíàë?
// ïðîâåðèì, åñòü ëè ðàíåå îòêðûòûå ïîçèöèè èëè îðäåðû?
   if(OrdersTotal()<1) 
     {
      // íåò íè îäíîãî îòêðûòîãî îðäåðà
      // íà âñÿêèé ñëó÷àé ïðîâåðèì, åñëè ó íàñ ñâîáîäíûå äåíüãè íà ñ÷åòó?
      // çíà÷åíèå 1000 âçÿòî äëÿ ïðèìåðà, îáû÷íî ìîæíî îòêðûòü 1 ëîò
      if(AccountFreeMargin()<(1000*Lots))
        {
         Print("We have no money");
         return(0);  // äåíåã íåò - âûõîäèì
        }
      // ïðîâåðèì, íå ñëèøêîì ëè ÷àñòî ïûòàåìñÿ îòêðûòüñÿ?
      // åñëè ïîñëåäíèé ðàç òîðãîâàëè ìåíåå ÷åì 5 ìèíóò(5*60=300 ñåê)
      // íàçàä, òî âûõîäèì
      // If((CurTime-LastTradeTime)<300) { Exit }
      // ïðîâåðÿåì íà âîçìîæíîñòü âñòàòü â äëèííóþ ïîçèöèþ (BUY)
      if(MacdCurrent<0 && MacdCurrent>SignalCurrent && MacdPrevious<SignalPrevious &&
         MathAbs(MacdCurrent)>(MACDOpenLevel*Points) && MaCurrent>MaPrevious)
        {
         OrderSend(Symbol(),OP_BUY,Lots,Ask,3,0,Ask+TakeProfit*Points,"macd sample",16384,0,Red); // èñïîëíÿåì
         if(GetLastError()==0)Print("Order opened : ",OrderOpenPrice());
         return(0); // âûõîäèì, òàê êàê âñå ðàâíî ïîñëå ñîâåðøåíèÿ òîðãîâîé îïåðàöèè
            // íàñòóïèë 10-òè ñåêóíäíûé òàéìàóò íà ñîâåðøåíèå òîðãîâûõ îïåðàöèé
        }
      // ïðîâåðÿåì íà âîçìîæíîñòü âñòàòü â êîðîòêóþ ïîçèöèþ (SELL)
      if(MacdCurrent>0 && MacdCurrent<SignalCurrent && MacdPrevious>SignalPrevious &&
         MacdCurrent>(MACDOpenLevel*Points) && MaCurrent<MaPrevious)
        {
         OrderSend(Symbol(),OP_SELL,Lots,Bid,3,0,Bid-TakeProfit*Points,"macd sample",16384,0,Red); // èñïîëíÿåì
         if(GetLastError()==0)Print("Order opened : ",OrderOpenPrice());
         return(0); // âûõîäèì
        };
      // çäåñü ìû çàâåðøèëè ïðîâåðêó íà âîçìîæíîñòü îòêðûòèÿ íîâûõ ïîçèöèé.
      // íîâûå ïîçèöèè îòêðûòû íå áûëè è ïðîñòî âûõîäèì ïî Exit, òàê êàê
      // âñå ðàâíî àíàëèçèðîâàòü íå÷åãî
      return(0);
     };
   // ïåðåõîäèì ê âàæíîé ÷àñòè ýêñïåðòà - êîíòðîëþ îòêðûòûõ ïîçèöèé
   // 'âàæíî ïðàâèëüíî âîéòè â ðûíîê, íî âûéòè - åùå âàæíåå...'
   total=OrdersTotal();
   for(cnt=0;cnt<total;cnt++)
     {
      OrderSelect(cnt, SELECT_BY_POS, MODE_TRADES);
      if(OrderType()<=OP_SELL && // ýòî îòêðûòàÿ ïîçèöèÿ? OP_BUY èëè OP_SELL 
         OrderSymbol()==Symbol())    // èíñòðóìåíò ñîâïàäàåò?
        {
         if(OrderType()==OP_BUY)   // îòêðûòà äëèííàÿ ïîçèöèÿ
           {
            // ïðîâåðèì, ìîæåò óæå ïîðà çàêðûâàòüñÿ?
            if(MacdCurrent>0 && MacdCurrent<SignalCurrent && MacdPrevious>SignalPrevious &&
               MacdCurrent>(MACDCloseLevel*Points))
                {
                 OrderClose(OrderTicket(),OrderLots(),Bid,3,Violet); // çàêðûâàåì ïîçèöèþ
                 return(0); // âûõîäèì
                };
            // ïðîâåðèì - ìîæåò ìîæíî/íóæíî óæå òðåéëèíã ñòîï ñòàâèòü?
            if(TrailingStop>0)  // ïîëüçîâàòåëü âûñòàâèë â íàñòðîéêàõ òðåéëèíãñòîï
              {                 // çíà÷èò ìû èäåì åãî ïðîâåðÿòü
               if(Bid-OrderOpenPrice()>Points*TrailingStop)
                 {
                  if(OrderStopLoss()<Bid-Points*TrailingStop)
                    {
                     OrderModify(OrderTicket(),OrderOpenPrice(),Bid-Points*TrailingStop,OrderTakeProfit(),0,Red);
                     return(0);
                    }
                 }
              }
           }
         else // èíà÷å ýòî êîðîòêàÿ ïîçèöèÿ
           {
            // ïðîâåðèì, ìîæåò óæå ïîðà çàêðûâàòüñÿ?
            if(MacdCurrent<0 && MacdCurrent>SignalCurrent &&
               MacdPrevious<SignalPrevious && MathAbs(MacdCurrent)>(MACDCloseLevel*Points))
              {
               OrderClose(OrderTicket(),OrderLots(),Ask,3,Violet); // çàêðûâàåì ïîçèöèþ
               return(0); // âûõîäèì
              }
            // ïðîâåðèì - ìîæåò ìîæíî/íóæíî óæå òðåéëèíã ñòîï ñòàâèòü?
            if(TrailingStop>0)  // ïîëüçîâàòåëü âûñòàâèë â íàñòðîéêàõ òðåéëèíãñòîï
              {                 // çíà÷èò ìû èäåì åãî ïðîâåðÿòü
               if((OrderOpenPrice()-Ask)>(Points*TrailingStop))
                 {
                  if(OrderStopLoss()==0.0 || 
                     OrderStopLoss()>(Ask+Points*TrailingStop))
                    {
                     OrderModify(OrderTicket(),OrderOpenPrice(),Ask+Points*TrailingStop,OrderTakeProfit(),0,Red);
                     return(0);
                    }
                 }
              }
           }
        }
     }
   return(0);
  }
// the end.