//+------------------------------------------------------------------+
//|                      2MA from A/D            Accumulation2MA.mq4 |
//|                                        Copyright © 2006, lukas1  |
//|                                        http://www.alpari-idc.ru/ |
//|                                        v.03
//+------------------------------------------------------------------+
#property copyright "Copyright © 2006,   lukas1"
#property link      "http://www.alpari-idc.ru/"

#property indicator_separate_window
#property indicator_buffers 2
#property indicator_color1 LightSeaGreen
#property indicator_color2 Red
//---- buffers
extern int FMA=3;
extern int SMA=10;
double ExtMapBuffer1[];
double SignalBuffer1[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
   IndicatorShortName("Difference 2MA fast="+FMA+", slow="+SMA+" from A/D");
//---- indicators
   SetIndexStyle(0,DRAW_NONE);
   SetIndexBuffer(0,ExtMapBuffer1);
   SetIndexStyle(1,DRAW_LINE,0,2);
   SetIndexBuffer(1,SignalBuffer1);   
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Accumulation/Distribution                                        |
//+------------------------------------------------------------------+
int start()
  {
   int i,limit,counted_bars=IndicatorCounted();
   limit=(Bars-counted_bars);
//----
   i=Bars-counted_bars-1;
   while(i>=0)
     {
      double high =High[i];
      double low  =Low[i];
      double open =Open[i];
      double close=Close[i];
      ExtMapBuffer1[i]=(close-low)-(high-close); //2close+high-low
      if(ExtMapBuffer1[i]!=0)
        {
         double diff=high-low;
         if(0==diff)
            ExtMapBuffer1[i]=0;
         else
           {
            ExtMapBuffer1[i]/=diff;
            ExtMapBuffer1[i]*=Volume[i];
           }
        }
      if(i<Bars-1) ExtMapBuffer1[i]+=ExtMapBuffer1[i+1];
      i--;
     }
   for(i=0; i<limit; i++)
      SignalBuffer1[i]=iMAOnArray(ExtMapBuffer1,Bars,FMA,0,MODE_SMA,i)*20
                      -iMAOnArray(ExtMapBuffer1,Bars,SMA,0,MODE_SMA,i)*20;
//----
   return(0);
  }
//+------------------------------------------------------------------+