Heiken_Ashi_JMa

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//|                        Heiken Ashi JMa.mq4                       |
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#property copyright "Copyright © 2006, Forex-TSD.com "
#property link      "http://www.forex-tsd.com/"
#property indicator_chart_window
#property indicator_buffers 4
#property indicator_color1 Red
#property indicator_color2 Green
#property indicator_color3 Red
#property indicator_color4 Green
extern int JMaPeriod = 50;
extern int JMaPhase = 0;
double ExtMapBuffer1[];
double ExtMapBuffer2[];
double ExtMapBuffer3[];
double ExtMapBuffer4[];
int ExtCountedBars=0;
int init()
  {
   SetIndexStyle(0,DRAW_HISTOGRAM, 0, 2, Red);
   SetIndexBuffer(0, ExtMapBuffer1);
   SetIndexStyle(1,DRAW_HISTOGRAM, 0, 2, Green);
   SetIndexBuffer(1, ExtMapBuffer2);
   SetIndexStyle(2,DRAW_HISTOGRAM, 0, 3, Red);
   SetIndexBuffer(2, ExtMapBuffer3);
   SetIndexStyle(3,DRAW_HISTOGRAM, 0, 3, Green);
   SetIndexBuffer(3, ExtMapBuffer4);
   SetIndexDrawBegin(0,5);
   SetIndexBuffer(0,ExtMapBuffer1);
   SetIndexBuffer(1,ExtMapBuffer2);
   SetIndexBuffer(2,ExtMapBuffer3);
   SetIndexBuffer(3,ExtMapBuffer4);
   return(0);
  }
int start()
  {
   double maOpen, maClose, maLow, maHigh;
   double haOpen, haHigh, haLow, haClose;
   if(Bars<=10) return(0);
   ExtCountedBars=IndicatorCounted();
   if (ExtCountedBars<0) return(-1);
   if (ExtCountedBars>0) ExtCountedBars--;
   int i=Bars-ExtCountedBars-1;
   while(i>=0)
     {
      maOpen=iCustom(NULL,0,"JJMA",JMaPeriod,JMaPhase,0,1,0,i);
      maClose=iCustom(NULL,0,"JJMA",JMaPeriod,JMaPhase,0,0,0,i);
      maLow=iCustom(NULL,0,"JJMA",JMaPeriod,JMaPhase,0,3,0,i);
      maHigh=iCustom(NULL,0,"JJMA",JMaPeriod,JMaPhase,0,2,0,i);

      haOpen=(ExtMapBuffer3[i+1]+ExtMapBuffer4[i+1])/2;
      haClose=(maOpen+maHigh+maLow+maClose)/4;
      haHigh=MathMax(maHigh, MathMax(haOpen, haClose));
      haLow=MathMin(maLow, MathMin(haOpen, haClose));
      if (haOpen<haClose) 
        {
         ExtMapBuffer1[i]=haLow;
         ExtMapBuffer2[i]=haHigh;
        } 
      else
        {
         ExtMapBuffer1[i]=haHigh;
         ExtMapBuffer2[i]=haLow;
        } 
      ExtMapBuffer3[i]=haOpen;
      ExtMapBuffer4[i]=haClose;
 	   i--;
     }
   return(0);
  }