//+------------------------------------------------------------------+
//|                                                BollBounce EA.mq4 |
//|                              Copyright © 2009, TradingSytemForex |
//|                                http://www.tradingsystemforex.com |
//+------------------------------------------------------------------+

#property copyright "Copyright © 2009, TradingSytemForex"
#property link "http://www.tradingsystemforex.com"

//|----------------------------------------------you can modify this expert
//|----------------------------------------------you can change the name
//|----------------------------------------------you can add "modified by you"
//|----------------------------------------------but you are not allowed to erase the copyrights

#define EAName "BollBounce EA"

extern string S1="---------------- Entry Settings";

bool TradeAsLongAs=true;
extern double Distance=13;
extern double Margin=1;

extern string S2="---------------- Money Management";

extern double Lots=0.1;//|-----------------------lots size
extern bool RiskMM=false;//|---------------------risk management
extern double RiskPercent=1;//|------------------risk percentage
extern bool Martingale=false;//|-----------------martingale
extern double Multiplier=2.0;//|-----------------multiplier martingale
extern double MinLots=0.04;//|-------------------minlots
extern double MaxLots=0.2;//|--------------------maxlots

/*
extern bool BasketProfitLoss=false;//|-----------use basket loss/profit
extern int BasketProfit=1000000;//|---------------if equity reaches this level, close trades
extern int BasketLoss=9999;//|-------------------if equity reaches this negative level, close trades
*/

extern string S3="---------------- Order Management";

extern int StopLoss=100;//|------------------------stop loss
extern int TakeProfit=25;//|----------------------take profit
extern bool HideSL=true;//|---------------------hide stop loss
extern bool HideTP=false;//|---------------------hide take profit
extern int TSCandles=4;
extern int BreakEven=0;//|-----------------------break even
extern int MaxOrders=5;//|---------------------maximum orders allowed
extern int Slippage=3;//|------------------------slippage
extern int Magic=2009;//|------------------------magic number

/*
extern string S4="---------------- MA Filter";

extern bool MAFilter=true;//|-------------------moving average filter
extern int MAPeriod=16;//|-----------------------ma filter period
extern int MAMethod=0;//|------------------------ma filter method
extern int MAPrice=0;//|-------------------------ma filter price
*/

/*
extern string S5="---------------- Time Filter";

extern bool TradeOnSunday=true;//|---------------time filter on sunday
extern bool MondayToThursdayTimeFilter=false;//|-time filter the week
extern int MondayToThursdayStartHour=0;//|-------start hour time filter the week
extern int MondayToThursdayEndHour=24;//|--------end hour time filter the week
extern bool FridayTimeFilter=false;//|-----------time filter on friday
extern int FridayStartHour=0;//|-----------------start hour time filter on friday
extern int FridayEndHour=21;//|------------------end hour time filter on friday
*/

extern string S6="---------------- Extras";

extern bool Hedge=false;//|----------------------enter an opposite trade
extern int HedgeSL=0;//|-------------------------stop loss
extern int HedgeTP=0;//|-------------------------take profit
extern bool ReverseSystem=true;//|--------------buy instead of sell, sell instead of buy

extern bool ReverseAtStop=false;//|--------------buy instead of sell, sell instead of buy
extern int Expiration=1440;//|--------------------expiration in minute for the reverse pending order
extern bool Comments=true;//|--------------------allow comments on chart

datetime PreviousBarTime1;
datetime PreviousBarTime2;

double maxEquity,minEquity,Balance=0.0;
double LotsFactor=1;
double InitialLotsFactor=1;
int digits;
double point;

bool TrendUP=false;
bool TrendDN=false;
      
//|---------initialization

int init()
{
   //|---------martingale initialization
  
   int tempfactor,total=OrdersTotal();
   if(tempfactor==0 && total>0)
   {
      for(int cnt=0;cnt<total;cnt++)
      {
         if(OrderSelect(cnt,SELECT_BY_POS))
         {
            if(OrderSymbol()==Symbol() && OrderMagicNumber()==Magic)
            {
               tempfactor=NormalizeDouble(OrderLots()/Lots,1+(MarketInfo(Symbol(),MODE_MINLOT)==0.01));
               break;
            }
         }
      }
   }
   int histotal=OrdersHistoryTotal();

   if(tempfactor==0&&histotal>0)
   {
      for(cnt=0;cnt<histotal;cnt++)
      {
         if(OrderSelect(cnt,SELECT_BY_POS,MODE_HISTORY))
         {
            if(OrderSymbol()==Symbol() && OrderMagicNumber()==Magic)
            {
               tempfactor=NormalizeDouble(OrderLots()/Lots,1+(MarketInfo(Symbol(),MODE_MINLOT)==0.01));
               break;
            }
         }
      }
   }
   
   if(tempfactor>0)
   LotsFactor=tempfactor;
   
   if(Digits<4)
   {
      point=0.01;
      digits=2;
   }
   else
   {
      point=0.0001;
      digits=4;
   }

   /*if(Comments)Comment("\nLoading...");*/
   return(0);
}

//|---------deinitialization

/*int deinit()
{
  return(0);
}*/

int start()
{

//|---------trailing stop

   MoveTrailingStop();

//|---------break even

   if(BreakEven>0)MoveBreakEven();
   
/*
//|---------basket profit loss

   if(BasketProfitLoss)
   {
      double CurrentProfit=0,CurrentBasket=0;
      CurrentBasket=AccountEquity()-AccountBalance();
      if(CurrentBasket>maxEquity)maxEquity=CurrentBasket;
      if(CurrentBasket<minEquity)minEquity=CurrentBasket;
      if(CurrentBasket>=BasketProfit||CurrentBasket<=(BasketLoss*(-1)))
      {
         CloseBuyOrders(Magic);
         CloseSellOrders(Magic);
         return(0);
      }
   }
*/

/*
//|---------time filter

   if((TradeOnSunday==false&&DayOfWeek()==0)||(MondayToThursdayTimeFilter&&DayOfWeek()>=1&&DayOfWeek()<=4&&!(Hour()>=MondayToThursdayStartHour&&Hour()<MondayToThursdayEndHour))||(FridayTimeFilter&&DayOfWeek()==5&&!(Hour()>=FridayStartHour&&Hour()<FridayEndHour)))
   {
      CloseBuyOrders(Magic);
      CloseSellOrders(Magic);
      return(0);
   }
*/

//|---------signal conditions

   int limit=1;
   for(int i=1;i<=limit;i++)
   {
   
/*
   //|---------moving average filter

      double MAF=iMA(Symbol(),0,MAPeriod,0,MAMethod,MAPrice,i);

      bool MABUY=false;bool MASELL=false;

      if((MAFilter==false)||(MAFilter&&Bid>MAF))MABUY=true;
      if((MAFilter==false)||(MAFilter&&Ask<MAF))MASELL=true;


   //|---------last price
   
      double LastBuyOpenPrice=0;
      double LastSellOpenPrice=0;
      int BuyOpenPosition=0;
      int SellOpenPosition=0;
      int TotalOpenPosition=0;
      int cnt=0;

      for(cnt=0;cnt<OrdersTotal();cnt++) 
      {
         OrderSelect(cnt,SELECT_BY_POS,MODE_TRADES);
         if(OrderSymbol()==Symbol()&&OrderMagicNumber()==Magic&&OrderCloseTime()==0) 
         {
            TotalOpenPosition++;
            if(OrderType()==OP_BUY) 
            {
               BuyOpenPosition++;
               LastBuyOpenPrice=OrderOpenPrice();
            }
            if(OrderType()==OP_SELL) 
            {
               SellOpenPosition++;
               LastSellOpenPrice=OrderOpenPrice();
            }
         }
      }
*/
   //|---------main signal
 
      double BBc=iMA(Symbol(),0,20,0,MODE_SMA,PRICE_CLOSE,i+3);
      double BBb=iMA(Symbol(),0,20,0,MODE_SMA,PRICE_CLOSE,i+2);
      double BBa=iMA(Symbol(),0,20,0,MODE_SMA,PRICE_CLOSE,i+1);
      double BB=iMA(Symbol(),0,20,0,MODE_SMA,PRICE_CLOSE,i);
      
      bool BUY=false;
      bool SELL=false;

      if(
      (Low[i+1]>(BBa+Distance*point)&&Low[i]<(BB+Distance*point)&&Close[i]>(BB))
      ||(Low[i+2]>(BBb+Distance*point)&&Low[i+1]<(BBa+Distance*point)&&Low[i]<(BB+Distance*point)&&Close[i]>(BB))
      ||(Low[i+3]>(BBc+Distance*point)&&Low[i+2]<(BBb+Distance*point)&&Low[i+1]<(BBa+Distance*point)&&Low[i]<(BB+Distance*point)&&Close[i]>(BB))
      )BUY=true;
      if(
      (High[i+1]<(BBa-Distance*point)&&High[i]>(BB-Distance*point)&&Close[i]<(BB))
      ||(High[i+2]<(BBb-Distance*point)&&High[i+1]>(BBa-Distance*point)&&High[i]>(BB-Distance*point)&&Close[i]<(BB))
      ||(High[i+3]<(BBc-Distance*point)&&High[i+2]>(BBb-Distance*point)&&High[i+1]>(BBa-Distance*point)&&High[i]>(BB-Distance*point)&&Close[i]<(BB))
      )SELL=true;
      
      bool SignalBUY=false;
      bool SignalSELL=false;
      
      if(BUY/*&&MABUY*/)if(ReverseSystem)SignalSELL=true;else SignalBUY=true;
      if(SELL/*&&MASELL*/)if(ReverseSystem)SignalBUY=true;else SignalSELL=true;
      
   }

//|---------risk management

   if(RiskMM)CalculateMM();

//|---------open orders

   double SL,TP,SLH,TPH,SLP,TPP,OPP,ILots;
   int Ticket,TicketH,TicketP,Expire=0;
   if(Expiration>0)Expire=TimeCurrent()+(Expiration*60)-5;

   if((CountOrders(OP_BUY,Magic)+CountOrders(OP_SELL,Magic))<MaxOrders)
   {  
      if((SignalBUY&&((TradeAsLongAs==false && NewBarBuy())||(TradeAsLongAs)))/*||(SignalBUY&&CountOrders(OP_BUY,Magic)<1)*/)
      {
         if(HideSL==false){SL=Low[i]-Margin*point-StopLoss*point;/*OPP=Bid-StopLoss*point;SLP=Bid;*/}else {SL=0;/*SLP=0;*/}
         if(HideTP==false&&TakeProfit>0){TP=High[i]+Margin*point+TakeProfit*point;/*TPP=Bid-(TakeProfit*2)*point;*/}else {TP=0;/*TPP=0;*/}
         if(HideSL==false&&HedgeSL>0)SLH=High[i]+Margin*point+HedgeSL*point;else SLH=0;
         if(HideTP==false&&HedgeTP>0)TPH=High[i]+Margin*point-HedgeTP*point;else TPH=0;
         if(Martingale)ILots=NormalizeDouble(Lots*MartingaleFactor(),2);else ILots=Lots;
         if(ILots<MinLots)ILots=MinLots;if(ILots>MaxLots)ILots=MaxLots;
         
         Ticket=OrderSend(Symbol(),OP_BUYSTOP,ILots,High[i]+Margin*point,Slippage,SL,TP,EAName,Magic,Expire,Blue);
         if(Hedge)TicketH=OrderSend(Symbol(),OP_SELL,ILots,High[i]+Margin*point,Slippage,SLH,TPH,EAName,Magic,Expire,Red);
         /*if(ReverseAtStop&&StopLoss>0)TicketP=OrderSend(Symbol(),OP_SELLSTOP,Lots,OPP,Slippage,SLP,TPP,EAName,Magic,Expire,Red);*/
      }
      if((SignalSELL&&((TradeAsLongAs==false && NewBarSell())||(TradeAsLongAs)))/*||(SignalSELL&&CountOrders(OP_SELL,Magic)<1)*/)
      {
         if(HideSL==false){SL=High[i]+Margin*point+StopLoss*point;/*OPP=Ask+StopLoss*point;SLP=Ask;*/}else {SL=0;/*SLP=0;*/}
         if(HideTP==false&&TakeProfit>0){TP=Low[i]-Margin*point-TakeProfit*point;/*TPP=Ask+(TakeProfit*2)*point;*/}else {TP=0;/*TPP=0;*/}
         if(HideSL==false&&HedgeSL>0)SLH=Low[i]-Margin*point-HedgeSL*point;else SLH=0;
         if(HideTP==false&&HedgeTP>0)TPH=Low[i]-Margin*point+HedgeTP*point;else TPH=0;
         if(Martingale)ILots=NormalizeDouble(Lots*MartingaleFactor(),2);else ILots=Lots;
         if(ILots<MinLots)ILots=MinLots;if(ILots>MaxLots)ILots=MaxLots;
         
         Ticket=OrderSend(Symbol(),OP_SELLSTOP,ILots,Low[i]-Margin*point,Slippage,SL,TP,EAName,Magic,Expire,Red);
         if(Hedge)TicketH=OrderSend(Symbol(),OP_BUY,ILots,Low[i]-Margin*point,Slippage,SLH,TPH,EAName,Magic,Expire,Blue);
         /*if(ReverseAtStop&&StopLoss>0)TicketP=OrderSend(Symbol(),OP_BUYSTOP,Lots,OPP,Slippage,SLP,TPP,EAName,Magic,Expire,Red);*/
      }
   }

//|---------close orders
   
   if(Hedge==false&&SELL)
   {
      if(ReverseSystem)CloseSellOrders(Magic);else CloseBuyOrders(Magic);
   }
   if(Hedge==false&&BUY)
   {
      if(ReverseSystem)CloseBuyOrders(Magic);else CloseSellOrders(Magic);
   }
   
   //|---------hidden sl-tp
   
   if(Hedge==false&&HideSL&&StopLoss>0)
   {
      CloseBuyOrdersHiddenSL(Magic);CloseSellOrdersHiddenSL(Magic);
   }
   if(Hedge==false&&HideTP&&TakeProfit>0)
   {
      CloseBuyOrdersHiddenTP(Magic);CloseSellOrdersHiddenTP(Magic);
   }

//|---------not enough money warning

   int err=0;
   if(Ticket<0)
   {
      if(GetLastError()==134)
      {
         err=1;
         Print("Not enough money!");
      }
      return (-1);
   }
   
/*
   if(Comments)
   {
      Comment("\nCopyright © 2009, TradingSytemForex",
              "\n\nL o t s                   =  " + DoubleToStr(Lots,2),
              "\nB a l a n c e         =  " + DoubleToStr(AccountBalance(),2),
              "\nE q u i t y            =  " + DoubleToStr(AccountEquity(),2));
   }
*/

   return(0);
}

//|---------close buy orders

int CloseBuyOrders(int Magic)
{
  int total=OrdersTotal();

  for (int cnt=total-1;cnt>=0;cnt--)
  {
    OrderSelect(cnt,SELECT_BY_POS,MODE_TRADES);
    if(OrderMagicNumber()==Magic&&OrderSymbol()==Symbol())
    {
      if(OrderType()==OP_BUY)
      {
        OrderClose(OrderTicket(),OrderLots(),Bid,3);
      }
    }
  }
  return(0);
}

int CloseBuyOrdersHiddenTP(int Magic)
{
  int total=OrdersTotal();

  for (int cnt=total-1;cnt>=0;cnt--)
  {
    OrderSelect(cnt,SELECT_BY_POS,MODE_TRADES);
    if(OrderMagicNumber()==Magic&&OrderSymbol()==Symbol())
    {
      if(OrderType()==OP_BUY&&Bid>(OrderOpenPrice()+TakeProfit*point))
      {
        OrderClose(OrderTicket(),OrderLots(),Bid,3);
      }
    }
  }
  return(0);
}

int CloseBuyOrdersHiddenSL(int Magic)
{
  int total=OrdersTotal();

  for (int cnt=total-1;cnt>=0;cnt--)
  {
    OrderSelect(cnt,SELECT_BY_POS,MODE_TRADES);
    if(OrderMagicNumber()==Magic&&OrderSymbol()==Symbol())
    {
      if(OrderType()==OP_BUY&&Bid<(OrderOpenPrice()-StopLoss*point))
      {
        OrderClose(OrderTicket(),OrderLots(),Bid,3);
      }
    }
  }
  return(0);
}

//|---------close sell orders

int CloseSellOrders(int Magic)
{
  int total=OrdersTotal();

  for(int cnt=total-1;cnt>=0;cnt--)
  {
    OrderSelect(cnt,SELECT_BY_POS,MODE_TRADES);
    if(OrderMagicNumber()==Magic&&OrderSymbol()==Symbol())
    {
      if(OrderType()==OP_SELL)
      {
        OrderClose(OrderTicket(),OrderLots(),Ask,3);
      }
    }
  }
  return(0);
}

int CloseSellOrdersHiddenTP(int Magic)
{
  int total=OrdersTotal();

  for(int cnt=total-1;cnt>=0;cnt--)
  {
    OrderSelect(cnt,SELECT_BY_POS,MODE_TRADES);
    if(OrderMagicNumber()==Magic&&OrderSymbol()==Symbol())
    {
      if(OrderType()==OP_SELL&&Ask<(OrderOpenPrice()-TakeProfit*point))
      {
        OrderClose(OrderTicket(),OrderLots(),Ask,3);
      }
    }
  }
  return(0);
}

int CloseSellOrdersHiddenSL(int Magic)
{
  int total=OrdersTotal();

  for(int cnt=total-1;cnt>=0;cnt--)
  {
    OrderSelect(cnt,SELECT_BY_POS,MODE_TRADES);
    if(OrderMagicNumber()==Magic&&OrderSymbol()==Symbol())
    {
      if(OrderType()==OP_SELL&&Ask>(OrderOpenPrice()+StopLoss*point))
      {
        OrderClose(OrderTicket(),OrderLots(),Ask,3);
      }
    }
  }
  return(0);
}

//|---------count orders

int CountOrders(int Type,int Magic)
{
   int _CountOrd;
   _CountOrd=0;
   for(int i=0;i<OrdersTotal();i++)
   {
      OrderSelect(i,SELECT_BY_POS,MODE_TRADES);
      if(OrderSymbol()==Symbol())
      {
         if((OrderType()==Type&&(OrderMagicNumber()==Magic)||Magic==0))_CountOrd++;
      }
   }
   return(_CountOrd);
}

//|---------trailing stop

void MoveTrailingStop()
{
   int cnt,total=OrdersTotal();
   for(cnt=0;cnt<total;cnt++)
   {
      OrderSelect(cnt,SELECT_BY_POS,MODE_TRADES);
      if(OrderType()<=OP_SELL&&OrderSymbol()==Symbol()&&OrderMagicNumber()==Magic)
      {
         if(OrderType()==OP_BUY)
         {
            if(Ask>NormalizeDouble(Low[iLowest(NULL,Period(),MODE_LOW,TSCandles,0)]+15*point,digits))  
            {                 
               if((NormalizeDouble(OrderStopLoss(),digits)<NormalizeDouble(Low[iLowest(NULL,Period(),MODE_LOW,TSCandles,0)]-15*point,digits))||(OrderStopLoss()==0))
               {
                  OrderModify(OrderTicket(),OrderOpenPrice(),NormalizeDouble(Low[iLowest(NULL,Period(),MODE_LOW,TSCandles,0)],digits),OrderTakeProfit(),0,Blue);
                  return(0);
               }
            }
         }
         else 
         {
            if(Bid<NormalizeDouble(High[iHighest(NULL,Period(),MODE_HIGH,TSCandles,0)]-15*point,digits))  
            {                 
               if((NormalizeDouble(OrderStopLoss(),digits)>(NormalizeDouble(High[iHighest(NULL,Period(),MODE_HIGH,TSCandles,0)]+15*point,digits)))||(OrderStopLoss()==0))
               {
                  OrderModify(OrderTicket(),OrderOpenPrice(),NormalizeDouble(High[iHighest(NULL,Period(),MODE_HIGH,TSCandles,0)],digits),OrderTakeProfit(),0,Red);
                  return(0);
               }
            }
         }
      }
   }
}

//|---------break even

void MoveBreakEven()
{
   int cnt,total=OrdersTotal();
   for(cnt=0;cnt<total;cnt++)
   {
      OrderSelect(cnt,SELECT_BY_POS,MODE_TRADES);
      if(OrderType()<=OP_SELL&&OrderSymbol()==Symbol()&&OrderMagicNumber()==Magic)
      {
         if(OrderType()==OP_BUY)
         {
            if(BreakEven>0)
            {
               if(NormalizeDouble((Bid-OrderOpenPrice()),digits)>BreakEven*point)
               {
                  if(NormalizeDouble((OrderStopLoss()-OrderOpenPrice()),digits)<0)
                  {
                     OrderModify(OrderTicket(),OrderOpenPrice(),NormalizeDouble(OrderOpenPrice()+0*point,digits),OrderTakeProfit(),0,Blue);
                     return(0);
                  }
               }
            }
         }
         else
         {
            if(BreakEven>0)
            {
               if(NormalizeDouble((OrderOpenPrice()-Ask),digits)>BreakEven*point)
               {
                  if(NormalizeDouble((OrderOpenPrice()-OrderStopLoss()),digits)<0)
                  {
                     OrderModify(OrderTicket(),OrderOpenPrice(),NormalizeDouble(OrderOpenPrice()-0*point,digits),OrderTakeProfit(),0,Red);
                     return(0);
                  }
               }
            }
         }
      }
   }
}

//|---------allow one action per bar

bool NewBarBuy()
{
   if(PreviousBarTime1<Time[0])
   {
      PreviousBarTime1=Time[0];
      return(true);
   }
   return(false);
}

bool NewBarSell()
{
   if(PreviousBarTime2<Time[0])
   {
      PreviousBarTime2=Time[0];
      return(true);
   }
   return(false);
}

//|---------calculate money management

void CalculateMM()
{
   double MinLots=MarketInfo(Symbol(),MODE_MINLOT);
   double MaxLots=MarketInfo(Symbol(),MODE_MAXLOT);
   Lots=AccountFreeMargin()/100000*RiskPercent;
   Lots=MathMin(MaxLots,MathMax(MinLots,Lots));
   if(MinLots<0.1)Lots=NormalizeDouble(Lots,2);
   else
   {
     if(MinLots<1)Lots=NormalizeDouble(Lots,1);
     else Lots=NormalizeDouble(Lots,0);
   }
   if(Lots<MinLots)Lots=MinLots;
   if(Lots>MaxLots)Lots=MaxLots;
   return(0);
}

//|---------martingale

int MartingaleFactor()
{
   int histotal=OrdersHistoryTotal();
   if (histotal>0)
   {
      for(int cnt=histotal-1;cnt>=0;cnt--)
      {
         if(OrderSelect(cnt,SELECT_BY_POS,MODE_HISTORY))
         {
            if(OrderSymbol()==Symbol() && OrderMagicNumber()==Magic)
            {
               if(OrderProfit()<0)
               {
                  LotsFactor=LotsFactor*Multiplier;
                  return(LotsFactor);
               }
               else
               {
                  LotsFactor=InitialLotsFactor;
                  if(LotsFactor<=0)
                  {
                     LotsFactor=1;
                  }
                  return(LotsFactor);
               }
            }
         }
      }
   }
   return(LotsFactor);
}