//+------------------------------------------------------------------+
//|                                           BuySellBasketTotal.mq4 |
//|                      Copyright © 2004, MetaQuotes Software Corp. |
//|                                       http://www.metaquotes.net/ |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2004, MetaQuotes Software Corp."
#property link      "http://www.metaquotes.net/"

#property indicator_separate_window
#property indicator_buffers 2
#property indicator_color1 Green
#property indicator_color2 Red

//---- input parameters
extern int look_back= 0;
extern int DisplayBars = 500;

extern string basket1= "USDCHF";
extern string basket2= "EURCHF";
extern string basket3= "EURUSD";


double Pair1,Pair2,Pair3;

double Pair1_now,Pair2_now,Pair3_now;

double Pair1_pips,Pair2_pips,Pair3_pips;

double myPoint1, myPoint2, myPoint3;


//---- buffers
double PipsBuyBuffer[];
double PipsSellBuffer[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
   string short_name;
//---- 2 additional buffers are used for counting.
//   IndicatorBuffers(3);
//---- indicator line
   SetIndexStyle(0,DRAW_LINE);
   SetIndexBuffer(0,PipsBuyBuffer);
   SetIndexStyle(1,DRAW_LINE);
   SetIndexBuffer(1,PipsSellBuffer);
   
//---- name for DataWindow and indicator subwindow label
   short_name="BuySellBasket";
   IndicatorShortName(short_name);
   SetIndexLabel(0,"PipsBuy");
   SetIndexLabel(1,"PipsSell");
//----
     GetPoints();

//----
   return(0);
  }
//+------------------------------------------------------------------+
//| BuySellBasket Total                                              |
//+------------------------------------------------------------------+
int start()
  {
   int    i,counted_bars=IndicatorCounted();
   double rel,negative,positive;
   static bool HaveSpreads = false;
   static bool HavePoints = false;
//----
//----
   if (DisplayBars < 1)
     i=Bars-1;
   else
      i = DisplayBars;
   
   while(i>=0)
     {
     Pair1= iOpen(basket1, 0, i + look_back);
     Pair2= iOpen(basket2, 0, i + look_back);
     Pair3= iOpen(basket3, 0, i + look_back);
     Pair1_now= iClose(basket1, 0, i);
     Pair2_now= iClose(basket2, 0, i);
     Pair3_now= iClose(basket3, 0, i);
     
// Buy
      Pair1_pips = (Pair1_now - Pair1)/myPoint1;
      Pair2_pips = (Pair2_now - Pair2)/myPoint2;
      Pair3_pips = (Pair3_now - Pair3)/myPoint3;

      PipsBuyBuffer[i] = Pair1_pips + Pair2_pips + Pair3_pips;
      
// Sell
      Pair1_pips = (Pair1 - Pair1_now)/myPoint1;
      Pair2_pips = (Pair2 - Pair2_now)/myPoint2;
      Pair3_pips = (Pair3 - Pair3_now)/myPoint3;

      PipsSellBuffer[i] = Pair1_pips + Pair2_pips + Pair3_pips;
   
      i--;
     }
//----
   return(0);
  }


double dPoint(string sym)
{
  double _Point;
  if (StringFind(sym, "JPY")>=0)
      _Point=0.01;
  
  else
      _Point=0.0001; 
  
  return (_Point);
}

void GetPoints()
{
  myPoint1 = dPoint(basket1);
  myPoint2 = dPoint(basket2);
  myPoint3 = dPoint(basket3);
}

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