Lucky_v1

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

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

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

#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 ushort   InpShift = 3;                 // @07=8F0 <564C F5=>9 =0 ?@54K4CI5< B8:5 8 B5:CI59

input ushort   InpLimit = 18;                // C1KB>: 2 ?C=:B0E

input bool     Reverse  = false;             // @525@A A83=0;>2

//---

bool first=true;

ulong          m_magic=15489;                // magic number

double         ExtShift=0.0;

double         ExtLimit=0.0;

ENUM_ACCOUNT_MARGIN_MODE m_margin_mode;

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

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

//| Expert initialization function                                   |

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

int OnInit()

  {

   SetMarginMode();

   if(!IsHedging())

     {

      Print("Hedging only!");

      return(INIT_FAILED);

     }

//---

   m_symbol.Name(Symbol());                  // sets symbol name

   if(!RefreshRates())

     {

      Print("Error RefreshRates. Bid=",DoubleToString(m_symbol.Bid(),Digits()),

            ", Ask=",DoubleToString(m_symbol.Ask(),Digits()));

      return(INIT_FAILED);

     }

   m_symbol.Refresh();

//---

   m_trade.SetExpertMagicNumber(m_magic);    // sets magic number

//--- 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;

   ExtShift          = InpShift * m_adjusted_point;

   ExtLimit          = InpLimit * m_adjusted_point;



   first=true;

//---

   return(INIT_SUCCEEDED);

  }

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

//| Expert deinitialization function                                 |

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

void OnDeinit(const int reason)

  {

//---



  }

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

//| Expert tick function                                             |

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

void OnTick()

  {

   static double prev_ask=0.0; // AB0B8G5A:0O ?5@5<5==0O 4;O E@0=5=8O F5=K ask =0 ?@54K4CI5< B8:5

   static double prev_bid=0.0; // AB0B8G5A:0O ?5@5<5==0O 4;O E@0=5=8O F5=K bid =0 ?@54K4CI5< B8:5



   if(!RefreshRates())

      return;



   if(first)

     {

      prev_ask=m_symbol.Ask();

      prev_bid=m_symbol.Bid();

      first=false;

      return;

     }



   if(m_symbol.Ask()-prev_ask>=ExtShift)

     {

      double lot=GetLots(ORDER_TYPE_BUY);

      if(lot!=0.0)

        {

         if(!Reverse) // 5A;8 =0AB@>9:0 "@525@A A83=0;>2" false

            m_trade.Buy(lot);

         else

            m_trade.Sell(lot);

        }

     }

   if(prev_bid-m_symbol.Bid()>=ExtShift)

     {

      double lot=GetLots(ORDER_TYPE_SELL);

      if(lot!=0.0)

        {

         if(!Reverse) // 5A;8 =0AB@>9:0 "@525@A A83=0;>2" false

            m_trade.Sell(lot);

         else

            m_trade.Buy(lot);

        }

     }



   prev_ask=m_symbol.Ask();

   prev_bid=m_symbol.Bid();



   CloseAll();

   return;

  }

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

//|                                                                  |

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

void CloseAll()

  {

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

      if(m_position.SelectByIndex(i))

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

           {

            if(m_position.Profit()>0)

              {

               m_trade.PositionClose(m_position.Ticket());

              }

            else

              {

               if(m_position.PositionType()==POSITION_TYPE_BUY)

                 {

                  if(m_position.PriceOpen()-m_symbol.Ask()>ExtLimit)

                     m_trade.PositionClose(m_position.Ticket());

                 }

               if(m_position.PositionType()==POSITION_TYPE_SELL)

                 {

                  if(m_symbol.Bid()-m_position.PriceOpen()>ExtLimit)

                     m_trade.PositionClose(m_position.Ticket());

                 }

              }

           }

  }

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

//|                                                                  |

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

double GetLots(ENUM_ORDER_TYPE order_type)

  {

   double result_volume=NormalizeDouble(m_account.FreeMargin()/10000,1);

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

   double chek_volime_lot=0.0;

   if(order_type==ORDER_TYPE_BUY)

      chek_volime_lot=m_trade.CheckVolume(m_symbol.Name(),result_volume,m_symbol.Ask(),ORDER_TYPE_BUY);

   if(order_type==ORDER_TYPE_SELL)

      chek_volime_lot=m_trade.CheckVolume(m_symbol.Name(),result_volume,m_symbol.Bid(),ORDER_TYPE_SELL);

//---

   if(chek_volime_lot<result_volume) // 5A;8 <>6=> >B:@KBL <5=LH5, G5< @0AAG8B0==K9 >1JQ<

      return(0.0);

//---

   return (result_volume);

  }

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

//|                                                                  |

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

void SetMarginMode(void)

  {

   m_margin_mode=(ENUM_ACCOUNT_MARGIN_MODE)AccountInfoInteger(ACCOUNT_MARGIN_MODE);

  }

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

//|                                                                  |

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

bool IsHedging(void)

  {

   return(m_margin_mode==ACCOUNT_MARGIN_MODE_RETAIL_HEDGING);

  }

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

//| Refreshes the symbol quotes data                                 |

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

bool RefreshRates()

  {

//--- refresh rates

   if(!m_symbol.RefreshRates())

      return(false);

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

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

      return(false);

//---

   return(true);

  }

//-------------------------------------------------------------------------