//+------------------------------------------------------------------+
//|                                                     macdHelp.mq4 |
//|                                                                  |
//|                                                                  |
//+------------------------------------------------------------------+
#property copyright ""
#property link      ""

#property indicator_separate_window
#property indicator_buffers 5
#property indicator_color1 Red
#property indicator_color2 Red
#property indicator_color3 Red
#property indicator_color4 Red
#property indicator_color5 Red
//---- buffers
double ExtMapBuffer0[];
double ExtMapBuffer1[];
double ExtMapBuffer2[];
double ExtMapBuffer3[];
double ExtMapBuffer4[];

extern int FastEMA=12;
extern int SlowEMA=26;
extern int SignalSMA=9;
extern int BollingerPeriod=21;
extern int BollingerDeviation=2;
extern int BollingerShift=0;

int i;
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
//---- indicators
   SetIndexStyle(0,DRAW_LINE);
   SetIndexBuffer(0,ExtMapBuffer0);
   SetIndexStyle(1,DRAW_LINE);
   SetIndexBuffer(1,ExtMapBuffer1);
   SetIndexStyle(2,DRAW_LINE);
   SetIndexBuffer(2,ExtMapBuffer2);
   SetIndexStyle(3,DRAW_LINE);
   SetIndexBuffer(3,ExtMapBuffer3);
   SetIndexStyle(4,DRAW_LINE);
   SetIndexBuffer(4,ExtMapBuffer4);   
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
//----
   
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
{
      int limit,
          counted_bars=IndicatorCounted();

   if(counted_bars>0) 
      counted_bars--;

   limit=Bars-counted_bars;
   
   for(i=0;i<limit;i++)
   {
      ExtMapBuffer0[i]=iOsMA(NULL,0,FastEMA,SlowEMA,SignalSMA,PRICE_CLOSE,i);    
      ExtMapBuffer3[i]=iMA(NULL,0,FastEMA,0,MODE_EMA,PRICE_CLOSE,i)-iMA(NULL,0,SlowEMA,0,MODE_EMA,PRICE_CLOSE,i);           
   }
   
   for(i=0;i<limit;i++)
   {
      ExtMapBuffer1[i]=iBandsOnArray(ExtMapBuffer0,Bars,BollingerPeriod,BollingerDeviation,BollingerShift,MODE_UPPER,i);
      ExtMapBuffer2[i]=iBandsOnArray(ExtMapBuffer0,Bars,BollingerPeriod,BollingerDeviation,BollingerShift,MODE_LOWER,i);
      ExtMapBuffer4[i]=iMAOnArray(ExtMapBuffer3,Bars,SignalSMA,0,MODE_SMA,i);
          
   }   
//----
   return(0);
  }
//+------------------------------------------------------------------+