Smoothing Average

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

//|                   Smoothing Average(barabashkakvn's edition).mq5 |

//|                                                       Rietsuiker |

//|                                                     http://ak.fm |

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

#property copyright "Rietsuiker"

#property link      "http://ak.fm"

#property version   "1.001"

//---

#include <Trade\PositionInfo.mqh>

#include <Trade\Trade.mqh>

#include <Trade\SymbolInfo.mqh>  

#include <Trade\AccountInfo.mqh>

#include <Expert\Money\MoneyFixedMargin.mqh>

CPositionInfo  m_position;                   // trade position object

CTrade         m_trade;                      // trading object

CSymbolInfo    m_symbol;                     // symbol info object

CAccountInfo   m_account;                    // account info wrapper

CMoneyFixedMargin *m_money;

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

//| Enum Lor or Risk                                                 |

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

enum ENUM_LOT_OR_RISK

  {

   lot=0,   // Constant lot

   risk=1,  // Risk in percent for a deal

  };

//--- input parameters

input ENUM_LOT_OR_RISK     IntLotOrRisk         = lot;            // Money management

input double               InpVolumeLorOrRisk   = 1.0;            // The value for "Money management"

//--- MA parameters

input int                  Inp_MA_ma_period     = 60;             // MA: averaging period 

input int                  Inp_MA_ma_shift      = 3;              // MA: horizontal shift 

input ENUM_MA_METHOD       Inp_MA_ma_method     = MODE_SMA;       // MA: smoothing type 

input ENUM_APPLIED_PRICE   Inp_MA_applied_price = PRICE_TYPICAL;  // MA: type of price 

input ushort               InpDelta             = 60;             // MA delta (in pips)

input double               InpDeltaCoefficient  = 1.0;            // MA delta coefficient for close (MA delta / MA delta coefficient)

input bool                 InpReverse           = false;          // Revers signals

input ulong                m_magic              = 427556772;      // magic number

//---

ulong  m_slippage=10;            // slippage

double ExtDelta=0.0;

int    handle_iMA;               // variable for storing the handle of the iMA indicator 

double m_adjusted_point;         // point value adjusted for 3 or 5 points

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

//| 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);

//--- tuning for 3 or 5 digits

   int digits_adjust=1;

   if(m_symbol.Digits()==3 || m_symbol.Digits()==5)

      digits_adjust=10;

   m_adjusted_point=m_symbol.Point()*digits_adjust;



   ExtDelta=InpDelta *m_adjusted_point;

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

   string err_text="";

   if(IntLotOrRisk==lot)

     {

      if(!CheckVolumeValue(InpVolumeLorOrRisk,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);

           }

        }

     }

   else

     {

      if(m_money!=NULL)

         delete m_money;

      m_money=new CMoneyFixedMargin;

      if(m_money!=NULL)

        {

         if(!m_money.Init(GetPointer(m_symbol),Period(),m_symbol.Point()*digits_adjust))

            return(INIT_FAILED);

         m_money.Percent(InpVolumeLorOrRisk);

        }

      else

        {

         Print(__FUNCTION__,", ERROR: Object CMoneyFixedMargin is NULL");

         return(INIT_FAILED);

        }

     }

//--- create handle of the indicator iMA

   handle_iMA=iMA(m_symbol.Name(),Period(),Inp_MA_ma_period,Inp_MA_ma_shift,

                  Inp_MA_ma_method,Inp_MA_applied_price);

//--- if the handle is not created 

   if(handle_iMA==INVALID_HANDLE)

     {

      //--- tell about the failure and output the error code 

      PrintFormat("Failed to create handle of the iMA indicator for the symbol %s/%s, error code %d",

                  m_symbol.Name(),

                  EnumToString(Period()),

                  GetLastError());

      //--- the indicator is stopped early 

      return(INIT_FAILED);

     }

//---

   return(INIT_SUCCEEDED);

  }

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

//| Expert deinitialization function                                 |

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

void OnDeinit(const int reason)

  {

//---

   if(m_money!=NULL)

      delete m_money;

  }

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

//| Expert tick function                                             |

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

void OnTick()

  {

   if(!RefreshRates())

      return;

//---

   double ma_array[];

   ArraySetAsSeries(ma_array,true);

   int buffer=0,start_pos=0,count=1;

   if(!iGetArray(handle_iMA,buffer,start_pos,count,ma_array))

      return;

//---

   bool position_exists=IsPositionExists();

   if(!position_exists)

     {

      //---

      double freeze_level=m_symbol.FreezeLevel()*m_symbol.Point();

      if(freeze_level==0.0)

         freeze_level=(m_symbol.Ask()-m_symbol.Bid())*3.0;

      freeze_level*=1.1;



      double stop_level=m_symbol.StopsLevel()*m_symbol.Point();

      if(stop_level==0.0)

         stop_level=(m_symbol.Ask()-m_symbol.Bid())*3.0;

      stop_level*=1.1;



      if(freeze_level<=0.0 || stop_level<=0.0)

         return;

      //---

      if(m_symbol.Ask()>ma_array[0]-ExtDelta)

        {

         if(!InpReverse)

           {

            OpenBuy(0.0,0.0);

            return;

           }

         else

           {

            OpenSell(0.0,0.0);

            return;

           }

        }

      else if(m_symbol.Bid()<ma_array[0]+ExtDelta)

        {

         if(!InpReverse)

           {

            OpenSell(0.0,0.0);

            return;

           }

         else

           {

            OpenBuy(0.0,0.0);

            return;

           }

        }



     }

   else

     {

      if(!InpReverse)

        {

         if(m_symbol.Bid()>ma_array[0]+ExtDelta*InpDeltaCoefficient)

            ClosePositions(POSITION_TYPE_SELL);

        }

      else

        {

         if(m_symbol.Ask()<ma_array[0]-ExtDelta*InpDeltaCoefficient)

            ClosePositions(POSITION_TYPE_BUY);

        }

      if(!InpReverse)

        {

         if(m_symbol.Ask()<ma_array[0]-ExtDelta*InpDeltaCoefficient)

            ClosePositions(POSITION_TYPE_BUY);

        }

      else

        {

         if(m_symbol.Bid()>ma_array[0]+ExtDelta*InpDeltaCoefficient)

            ClosePositions(POSITION_TYPE_SELL);

        }

     }

  }

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

//| TradeTransaction function                                        |

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

void OnTradeTransaction(const MqlTradeTransaction &trans,

                        const MqlTradeRequest &request,

                        const MqlTradeResult &result)

  {

//---



  }

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

//| 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);

  }

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

//| Is position exists                                               |

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

bool IsPositionExists(void)

  {

   for(int i=PositionsTotal()-1;i>=0;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)

            return(true);

//---

   return(false);

  }

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

//| Get value of buffers                                             |

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

double iGetArray(const int handle,const int buffer,const int start_pos,const int count,double &arr_buffer[])

  {

   bool result=true;

   if(!ArrayIsDynamic(arr_buffer))

     {

      Print("This a no dynamic array!");

      return(false);

     }

   ArrayFree(arr_buffer);

//--- reset error code 

   ResetLastError();

//--- fill a part of the iBands array with values from the indicator buffer

   int copied=CopyBuffer(handle,buffer,start_pos,count,arr_buffer);

   if(copied!=count)

     {

      //--- if the copying fails, tell the error code 

      PrintFormat("Failed to copy data from the indicator, error code %d",GetLastError());

      //--- quit with zero result - it means that the indicator is considered as not calculated 

      return(false);

     }

   return(result);

  }

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

//| Close positions                                                  |

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

void ClosePositions(const ENUM_POSITION_TYPE pos_type)

  {

   for(int i=PositionsTotal()-1;i>=0;i--) // returns the number of current positions

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

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

            if(m_position.PositionType()==pos_type) // gets the position type

               m_trade.PositionClose(m_position.Ticket()); // close a position by the specified symbol

  }

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

//| Open Buy position                                                |

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

void OpenBuy(double sl,double tp)

  {

   sl=m_symbol.NormalizePrice(sl);

   tp=m_symbol.NormalizePrice(tp);



   double long_lot=0.0;

   if(IntLotOrRisk==risk)

     {

      long_lot=m_money.CheckOpenLong(m_symbol.Ask(),sl);

      Print("sl=",DoubleToString(sl,m_symbol.Digits()),

            ", CheckOpenLong: ",DoubleToString(long_lot,2),

            ", Balance: ",    DoubleToString(m_account.Balance(),2),

            ", Equity: ",     DoubleToString(m_account.Equity(),2),

            ", FreeMargin: ", DoubleToString(m_account.FreeMargin(),2));

      if(long_lot==0.0)

        {

         Print(__FUNCTION__,", ERROR: method CheckOpenLong returned the value of \"0.0\"");

         return;

        }

     }

   else if(IntLotOrRisk==lot)

      long_lot=InpVolumeLorOrRisk;

   else

      return;

//--- 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());

   if(free_margin_check>0.0)

     {

      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);

           }

         else

           {

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

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

            PrintResultTrade(m_trade,m_symbol);

           }

        }

      else

        {

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

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

         PrintResultTrade(m_trade,m_symbol);

        }

     }

   else

     {

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

      return;

     }

//---

  }

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

//| Open Sell position                                               |

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

void OpenSell(double sl,double tp)

  {

   sl=m_symbol.NormalizePrice(sl);

   tp=m_symbol.NormalizePrice(tp);



   double short_lot=0.0;

   if(IntLotOrRisk==risk)

     {

      short_lot=m_money.CheckOpenShort(m_symbol.Bid(),sl);

      Print("sl=",DoubleToString(sl,m_symbol.Digits()),

            ", CheckOpenLong: ",DoubleToString(short_lot,2),

            ", Balance: ",    DoubleToString(m_account.Balance(),2),

            ", Equity: ",     DoubleToString(m_account.Equity(),2),

            ", FreeMargin: ", DoubleToString(m_account.FreeMargin(),2));

      if(short_lot==0.0)

        {

         Print(__FUNCTION__,", ERROR: method CheckOpenShort returned the value of \"0.0\"");

         return;

        }

     }

   else if(IntLotOrRisk==lot)

      short_lot=InpVolumeLorOrRisk;

   else

      return;

//--- 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());

   if(free_margin_check>0.0)

     {

      if(m_trade.Sell(short_lot,NULL,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);

           }

         else

           {

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

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

            PrintResultTrade(m_trade,m_symbol);

           }

        }

      else

        {

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

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

         PrintResultTrade(m_trade,m_symbol);

        }

     }

   else

     {

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

      return;

     }

//---

  }

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

//| 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());

  }

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