Pendulum

ÿþ//+------------------------------------------------------------------+

//|                            Pendulum(barabashkakvn's edition).mq5 |

//+------------------------------------------------------------------+

#property version   "1.000"

//---

#include <Trade\PositionInfo.mqh>

#include <Trade\Trade.mqh>

#include <Trade\SymbolInfo.mqh>  

#include <Trade\AccountInfo.mqh>

CPositionInfo  m_position;                   // trade position object

CTrade         m_trade;                      // trading object

CSymbolInfo    m_symbol;                     // symbol info object

CAccountInfo   m_account;                    // account info wrapper

//--- input parameters

input double   InpLots=1.0;      // Lots

input double   shag              = 0.001;

input double   mnoj              = 2;

input ulong    m_magic=268388736;// magic number

//---

ulong          m_ticket;

ulong          m_slippage=100;   // slippage



double tc=0.0,cos_=0.0,cob_=0.0,sl_=0.0,tp_=0.0;

//+------------------------------------------------------------------+

//| Expert initialization function                                   |

//+------------------------------------------------------------------+

int OnInit()

  {

//---

   if(!m_symbol.Name(Symbol())) // sets symbol name

      return(INIT_FAILED);

   RefreshRates();

//---

   m_trade.SetExpertMagicNumber(m_magic);

   m_trade.SetMarginMode();

   m_trade.SetTypeFillingBySymbol(m_symbol.Name());

   m_trade.SetDeviationInPoints(m_slippage);

//--- check the input parameter "Lots"

   string err_text="";

   if(!CheckVolumeValue(InpLots,err_text))

     {

      //--- when testing, we will only output to the log about incorrect input parameters

      if(MQLInfoInteger(MQL_TESTER))

        {

         Print(__FUNCTION__,", ERROR: ",err_text);

         return(INIT_FAILED);

        }

      else // if the Expert Advisor is run on the chart, tell the user about the error

        {

         Alert(__FUNCTION__,", ERROR: ",err_text);

         return(INIT_PARAMETERS_INCORRECT);

        }

     }

//---

   return(INIT_SUCCEEDED);

  }

//+------------------------------------------------------------------+

//| Expert deinitialization function                                 |

//+------------------------------------------------------------------+

void OnDeinit(const int reason)

  {

//---



  }

//+------------------------------------------------------------------+

//| Expert tick function                                             |

//+------------------------------------------------------------------+

void OnTick()

  {

//---

   if(!RefreshRates())

      return;

   double bid=m_symbol.Bid();

   tc=NormalizeDouble(MathCeil(bid/shag)*shag,m_symbol.Digits());



   if(cos_==0)

      cos_=tc-shag;

   if(cob_==0)

      cob_=tc;



   ulong tickets[4];

   ArrayInitialize(tickets,0);

   long positions[4];

   ArrayInitialize(positions,-1);



   int total=0;

//--- >1@0B=K9 >1E>4 B>;L:> 4;O ?>4AGQB0. 4;O 70:@KB8O ?>78F89 B0:>9 >1E>4 =5;L7O!!!

   for(int i=0;i<PositionsTotal();i++)

      if(m_position.SelectByIndex(i)) // selects the position by index for further access to its properties

         if(m_position.Symbol()==m_symbol.Name() && m_position.Magic()==m_magic)

           {

            total++;

            if(total>3)

               return;

            tickets[total]=m_position.Ticket();

            positions[total]=m_position.PositionType();

           }



   if(total==0)

     {

      if(cob_<=bid)

        {

         OpenBuy(InpLots,0.0,0.0);

         sl_ = cob_ - shag*2;

         tp_ = cob_ + shag;

         cos_ = cob_ - shag;

         cob_ = cob_ + shag;

        }

      if(cos_>=bid)

        {

         OpenSell(InpLots,0.0,0.0);

         sl_ = cos_ + shag*2;

         tp_ = cos_ - shag;

         cob_ = cos_ + shag;

         cos_ = cos_ - shag;

        }

     }

//---

   if(total==1)

     {

      if(positions[1]==POSITION_TYPE_BUY)

        {

         if(cos_>=bid)

           {

            OpenSell(InpLots*2.0,0.0,0.0);

            sl_   = cos_ + shag;

            tp_   = cos_ - shag*mnoj;

            cob_  = cos_ + shag;

            cos_  = cos_ - shag * mnoj;

            return;

           }

         if(tp_<=bid)

           {

            if(m_trade.PositionClose(tickets[1]))

              {

               OpenBuy(InpLots,0.0,0.0);

               cob_= tp_;

               sl_ = cob_ - shag*2;

               tp_ = cob_ + shag;

               cos_= cob_-shag;

               return;

              }

           }

        }

      if(positions[1]==POSITION_TYPE_SELL)

        {

         if(cob_<=bid)

           {

            OpenBuy(InpLots*2.0,0.0,0.0);

            sl_ = cob_ - shag;

            tp_ = cob_ + shag*mnoj;

            cos_ = cob_ - shag;

            cob_ = cob_ + shag*mnoj;

            return;

           }

         if(tp_>=bid)

           {

            if(m_trade.PositionClose(tickets[1]))

              {

               OpenSell(InpLots,0.0,0.0);

               cos_= tp_;

               sl_ = cos_ + shag*2;

               tp_ = cos_ - shag;

               cob_= cos_+shag;

              }

           }

        }

     }

//---

   if(total==2)

     {

      if(positions[2]==POSITION_TYPE_BUY)

        {

         if(cos_>=bid)

           {

            OpenSell(InpLots*4.0,0.0,0.0);

            sl_ = cos_ + shag;

            tp_ = cos_ - shag*mnoj;

            cob_ = cos_ + shag;

            cos_ = cos_ - shag*mnoj;

            return;

           }

         if(tp_<=bid)

           {

            m_trade.PositionClose(tickets[1]);

            m_trade.PositionClosePartial(tickets[1],InpLots*2.0);

            cob_ = tp_;

            cos_ = tp_ - shag;

            return;

           }

        }

      if(positions[2]==POSITION_TYPE_SELL)

        {

         if(cob_<=bid)

           {

            OpenBuy(InpLots*4.0,0.0,0.0);

            sl_ = cob_ - shag;

            tp_ = cob_ + shag*mnoj;

            cos_ = cob_ - shag;

            cob_ = cob_ + shag*mnoj;

            return;

           }

         if(tp_>=bid)

           {

            m_trade.PositionClose(tickets[1]);

            m_trade.PositionClosePartial(tickets[1],InpLots*2.0);

            cos_ = tp_;

            cob_ = tp_ + shag;

            return;

           }

        }

     }

//---

   if(total==3)

     {

      if(positions[3]==POSITION_TYPE_BUY)

        {

         if(tp_<=bid)

           {

            m_trade.PositionClose(tickets[1]);

            m_trade.PositionClosePartial(tickets[2],InpLots*2.0);

            m_trade.PositionClosePartial(tickets[3],InpLots*4.0);

            cob_ = tp_;

            cos_ = tp_ - shag;

            return;

           }

         if(sl_>=bid)

           {

            m_trade.PositionClose(tickets[1]);

            m_trade.PositionClosePartial(tickets[2],InpLots*2.0);

            m_trade.PositionClosePartial(tickets[3],InpLots*4.0);

            cos_ = sl_ - shag;

            cob_ = sl_ + shag;

            return;

           }

        }

      if(positions[3]==POSITION_TYPE_SELL)

        {

         if(tp_>=bid)

           {

            m_trade.PositionClose(tickets[1]);

            m_trade.PositionClosePartial(tickets[2],InpLots*2.0);

            m_trade.PositionClosePartial(tickets[3],InpLots*4.0);

            cos_ = tp_;

            cob_ = tp_ + shag;

            return;

           }

         if(sl_<=bid)

           {

            m_trade.PositionClose(tickets[1]);

            m_trade.PositionClosePartial(tickets[2],InpLots*2.0);

            m_trade.PositionClosePartial(tickets[3],InpLots*4.0);

            cob_ = sl_ + shag;

            cos_ = sl_ - shag;

           }

        }

     }

  }

//+------------------------------------------------------------------+

//| TradeTransaction function                                        |

//+------------------------------------------------------------------+

void OnTradeTransaction(const MqlTradeTransaction &trans,

                        const MqlTradeRequest &request,

                        const MqlTradeResult &result)

  {

//---

//--- get transaction type as enumeration value 

   ENUM_TRADE_TRANSACTION_TYPE type=trans.type;

//--- if transaction is result of addition of the transaction in history

   if(type==TRADE_TRANSACTION_DEAL_ADD)

     {

      long     deal_ticket       =0;

      long     deal_order        =0;

      long     deal_time         =0;

      long     deal_time_msc     =0;

      long     deal_type         =-1;

      long     deal_entry        =-1;

      long     deal_magic        =0;

      long     deal_reason       =-1;

      long     deal_position_id  =0;

      double   deal_volume       =0.0;

      double   deal_price        =0.0;

      double   deal_commission   =0.0;

      double   deal_swap         =0.0;

      double   deal_profit       =0.0;

      string   deal_symbol       ="";

      string   deal_comment      ="";

      string   deal_external_id  ="";

      if(HistoryDealSelect(trans.deal))

        {

         deal_ticket       =HistoryDealGetInteger(trans.deal,DEAL_TICKET);

         deal_order        =HistoryDealGetInteger(trans.deal,DEAL_ORDER);

         deal_time         =HistoryDealGetInteger(trans.deal,DEAL_TIME);

         deal_time_msc     =HistoryDealGetInteger(trans.deal,DEAL_TIME_MSC);

         deal_type         =HistoryDealGetInteger(trans.deal,DEAL_TYPE);

         deal_entry        =HistoryDealGetInteger(trans.deal,DEAL_ENTRY);

         deal_magic        =HistoryDealGetInteger(trans.deal,DEAL_MAGIC);

         deal_reason       =HistoryDealGetInteger(trans.deal,DEAL_REASON);

         deal_position_id  =HistoryDealGetInteger(trans.deal,DEAL_POSITION_ID);



         deal_volume       =HistoryDealGetDouble(trans.deal,DEAL_VOLUME);

         deal_price        =HistoryDealGetDouble(trans.deal,DEAL_PRICE);

         deal_commission   =HistoryDealGetDouble(trans.deal,DEAL_COMMISSION);

         deal_swap         =HistoryDealGetDouble(trans.deal,DEAL_SWAP);

         deal_profit       =HistoryDealGetDouble(trans.deal,DEAL_PROFIT);



         deal_symbol       =HistoryDealGetString(trans.deal,DEAL_SYMBOL);

         deal_comment      =HistoryDealGetString(trans.deal,DEAL_COMMENT);

         deal_external_id  =HistoryDealGetString(trans.deal,DEAL_EXTERNAL_ID);

        }

      else

         return;

      if(deal_symbol==m_symbol.Name() && deal_magic==m_magic)

         if(deal_entry==DEAL_ENTRY_IN)

            if(deal_type==DEAL_TYPE_BUY || deal_type==DEAL_TYPE_SELL)

              {



              }

     }

  }

//+------------------------------------------------------------------+

//| Refreshes the symbol quotes data                                 |

//+------------------------------------------------------------------+

bool RefreshRates(void)

  {

//--- refresh rates

   if(!m_symbol.RefreshRates())

     {

      Print("RefreshRates error");

      return(false);

     }

//--- protection against the return value of "zero"

   if(m_symbol.Ask()==0 || m_symbol.Bid()==0)

      return(false);

//---

   return(true);

  }

//+------------------------------------------------------------------+

//| Check the correctness of the position volume                     |

//+------------------------------------------------------------------+

bool CheckVolumeValue(double volume,string &error_description)

  {

//--- minimal allowed volume for trade operations

   double min_volume=m_symbol.LotsMin();

   if(volume<min_volume)

     {

      if(TerminalInfoString(TERMINAL_LANGUAGE)=="Russian")

         error_description=StringFormat("1J5< <5=LH5 <8=8<0;L=> 4>?CAB8<>3> SYMBOL_VOLUME_MIN=%.2f",min_volume);

      else

         error_description=StringFormat("Volume is less than the minimal allowed SYMBOL_VOLUME_MIN=%.2f",min_volume);

      return(false);

     }

//--- maximal allowed volume of trade operations

   double max_volume=m_symbol.LotsMax();

   if(volume>max_volume)

     {

      if(TerminalInfoString(TERMINAL_LANGUAGE)=="Russian")

         error_description=StringFormat("1J5< 1>;LH5 <0:A8<0;L=> 4>?CAB8<>3> SYMBOL_VOLUME_MAX=%.2f",max_volume);

      else

         error_description=StringFormat("Volume is greater than the maximal allowed SYMBOL_VOLUME_MAX=%.2f",max_volume);

      return(false);

     }

//--- get minimal step of volume changing

   double volume_step=m_symbol.LotsStep();

   int ratio=(int)MathRound(volume/volume_step);

   if(MathAbs(ratio*volume_step-volume)>0.0000001)

     {

      if(TerminalInfoString(TERMINAL_LANGUAGE)=="Russian")

         error_description=StringFormat("1J5< =5 :@0B5= <8=8<0;L=><C H03C SYMBOL_VOLUME_STEP=%.2f, 1;8609H89 ?@028;L=K9 >1J5< %.2f",

                                        volume_step,ratio*volume_step);

      else

         error_description=StringFormat("Volume is not a multiple of the minimal step SYMBOL_VOLUME_STEP=%.2f, the closest correct volume is %.2f",

                                        volume_step,ratio*volume_step);

      return(false);

     }

   error_description="Correct volume value";

   return(true);

  }

//+------------------------------------------------------------------+

//| Open Buy position                                                |

//+------------------------------------------------------------------+

bool OpenBuy(const double lot,double sl,double tp)

  {

   sl=m_symbol.NormalizePrice(sl);

   tp=m_symbol.NormalizePrice(tp);



   double long_lot=lot;

//--- check volume before OrderSend to avoid "not enough money" error (CTrade)

   double free_margin_check= m_account.FreeMarginCheck(m_symbol.Name(),ORDER_TYPE_BUY,long_lot,m_symbol.Ask());

   double margin_check     = m_account.MarginCheck(m_symbol.Name(),ORDER_TYPE_SELL,long_lot,m_symbol.Bid());

   if(free_margin_check>margin_check)

     {

      if(m_trade.Buy(long_lot,m_symbol.Name(),m_symbol.Ask(),sl,tp))

        {

         if(m_trade.ResultDeal()==0)

           {

            Print("#1 Buy -> false. Result Retcode: ",m_trade.ResultRetcode(),

                  ", description of result: ",m_trade.ResultRetcodeDescription());

            PrintResultTrade(m_trade,m_symbol);

            return(false);

           }

         else

           {

            Print("#2 Buy -> true. Result Retcode: ",m_trade.ResultRetcode(),

                  ", description of result: ",m_trade.ResultRetcodeDescription());

            PrintResultTrade(m_trade,m_symbol);

            return(true);

           }

        }

      else

        {

         Print("#3 Buy -> false. Result Retcode: ",m_trade.ResultRetcode(),

               ", description of result: ",m_trade.ResultRetcodeDescription());

         PrintResultTrade(m_trade,m_symbol);

         return(false);

        }

     }

   else

     {

      Print(__FUNCTION__,", ERROR: method CAccountInfo::FreeMarginCheck returned the value ",DoubleToString(free_margin_check,2));

      return(false);

     }

//---

  }

//+------------------------------------------------------------------+

//| Open Sell position                                               |

//+------------------------------------------------------------------+

bool OpenSell(const double lot,double sl,double tp)

  {

   sl=m_symbol.NormalizePrice(sl);

   tp=m_symbol.NormalizePrice(tp);



   double short_lot=lot;

//--- check volume before OrderSend to avoid "not enough money" error (CTrade)

   double free_margin_check= m_account.FreeMarginCheck(m_symbol.Name(),ORDER_TYPE_SELL,short_lot,m_symbol.Bid());

   double margin_check     = m_account.MarginCheck(m_symbol.Name(),ORDER_TYPE_SELL,short_lot,m_symbol.Bid());

   if(free_margin_check>margin_check)

     {

      if(m_trade.Sell(short_lot,m_symbol.Name(),m_symbol.Bid(),sl,tp))

        {

         if(m_trade.ResultDeal()==0)

           {

            Print("#1 Sell -> false. Result Retcode: ",m_trade.ResultRetcode(),

                  ", description of result: ",m_trade.ResultRetcodeDescription());

            PrintResultTrade(m_trade,m_symbol);

            return(false);

           }

         else

           {

            Print("#2 Sell -> true. Result Retcode: ",m_trade.ResultRetcode(),

                  ", description of result: ",m_trade.ResultRetcodeDescription());

            PrintResultTrade(m_trade,m_symbol);

            return(true);

           }

        }

      else

        {

         Print("#3 Sell -> false. Result Retcode: ",m_trade.ResultRetcode(),

               ", description of result: ",m_trade.ResultRetcodeDescription());

         PrintResultTrade(m_trade,m_symbol);

         return(false);

        }

     }

   else

     {

      Print(__FUNCTION__,", ERROR: method CAccountInfo::FreeMarginCheck returned the value ",DoubleToString(free_margin_check,2));

      return(false);

     }

//---

  }

//+------------------------------------------------------------------+

//| Print CTrade result                                              |

//+------------------------------------------------------------------+

void PrintResultTrade(CTrade &trade,CSymbolInfo &symbol)

  {

   Print("File: ",__FILE__,", symbol: ",m_symbol.Name());

   Print("Code of request result: "+IntegerToString(trade.ResultRetcode()));

   Print("code of request result as a string: "+trade.ResultRetcodeDescription());

   Print("Deal ticket: "+IntegerToString(trade.ResultDeal()));

   Print("Order ticket: "+IntegerToString(trade.ResultOrder()));

   Print("Volume of deal or order: "+DoubleToString(trade.ResultVolume(),2));

   Print("Price, confirmed by broker: "+DoubleToString(trade.ResultPrice(),symbol.Digits()));

   Print("Current bid price: "+DoubleToString(symbol.Bid(),symbol.Digits())+" (the requote): "+DoubleToString(trade.ResultBid(),symbol.Digits()));

   Print("Current ask price: "+DoubleToString(symbol.Ask(),symbol.Digits())+" (the requote): "+DoubleToString(trade.ResultAsk(),symbol.Digits()));

   Print("Broker comment: "+trade.ResultComment());

  }

//+------------------------------------------------------------------+