ttm-trend_v3

//+------------------------------------------------------------------+
//|                                                    ttm-trend.mq4 |
//|                Copyright © 2005, Nick Bilak, beluck[AT]gmail.com |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2005, Nick Bilak"
#property indicator_chart_window
#property indicator_buffers 2
#property indicator_color2 clrRed
#property indicator_color1 clrBlue
//---- input parameters
extern int       CompBars=6;
//---- buffers
double buf1[];
double buf2[];
double haOpen[];
double haClose[];
double icolor[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
//---- indicators
   IndicatorBuffers(5);
   SetIndexStyle(0,DRAW_HISTOGRAM);
   SetIndexBuffer(0,buf1);
//---
   SetIndexStyle(1,DRAW_HISTOGRAM);
   SetIndexBuffer(1,buf2);
//---
   SetIndexBuffer(2,haOpen);
   SetIndexBuffer(3,haClose);
   SetIndexBuffer(4,icolor);
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custor indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
//---- 
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
  {
   int shift,limit,i;
   int counted_bars=IndicatorCounted();
   if(counted_bars<0) return(-1);
   if(counted_bars>0) counted_bars--;
   //limit=Bars-4;
   if(counted_bars==0) limit=Bars-counted_bars-4-CompBars;
//----
   if(haOpen[limit+3]==0.0) haOpen[limit+3]=Open[limit+3];
   haClose[limit+3]=(Open[limit+3]+High[limit+3]+Low[limit+3]+Close[limit+3])/4.0;
//----
   for(shift=limit+2; shift>=0; shift--)
     {
      haOpen[shift]=(haOpen[shift+1]+haClose[shift+1])/2.0;
      haClose[shift]=(Open[shift]+High[shift]+Low[shift]+Close[shift])/4.0;
      //----
      if(haClose[shift]>haOpen[shift]) icolor[shift]=1;
      else icolor[shift]=-1;
      //----
      for(i=1; i<=CompBars; i++)
        {
         if(haOpen[shift]<=MathMax(haOpen[shift+i],haClose[shift+i]) &&
            haOpen[shift]>=MathMin(haOpen[shift+i],haClose[shift+i]) &&
            haClose[shift]<=MathMax(haOpen[shift+i],haClose[shift+i]) &&
            haClose[shift]>=MathMin(haOpen[shift+i],haClose[shift+i]) )
            icolor[shift]=icolor[shift+i];
        }
      if(icolor[shift]>0)
        {
         buf1[shift]=High[shift];
         buf2[shift]=Low[shift];
        }
      else
        {
         buf2[shift]=High[shift];
         buf1[shift]=Low[shift];
        }
     }
   return(0);
  }
//+------------------------------------------------------------------+