StepMA_v6.4

//+------------------------------------------------------------------+
//|                                                  StepMA_v6.4.mq4 |
//|                                Copyright © 2006, TrendLaboratory |
//|            http://finance.groups.yahoo.com/group/TrendLaboratory |
//|                                       E-mail: igorad2004@list.ru |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2006, TrendLaboratory"
#property link      "http://finance.groups.yahoo.com/group/TrendLaboratory"

#property indicator_chart_window
#property indicator_buffers 3
#property indicator_color1 LightBlue
#property indicator_color2 Blue
#property indicator_color3 Red
//---- input parameters
extern int     Length=10;      // ATR Length
extern double  Kv=1.0;         // Sensivity Factor
extern int     StepSize=0;     // Constant Step Size (if need)
extern int     Advance=0;      // Offset
extern double  Percentage=0;   // Up/down moving percentage 
extern bool    HighLow=false;  // High/Low Mode Switch (more sensitive)
extern bool    Color=false;    // Color Mode Switch
extern int     BarsNumber=0;   // Counted bars    
//---- indicator buffers
double LineBuffer[];
double UpBuffer[];
double DnBuffer[];
double smin[];
double smax[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
  int init()
  {
   string short_name;
//---- indicator line
   IndicatorBuffers(5);
   SetIndexStyle(0,DRAW_LINE,STYLE_SOLID,1);
   SetIndexStyle(1,DRAW_ARROW);
   SetIndexStyle(2,DRAW_ARROW);
   SetIndexArrow(1,159);
   SetIndexArrow(2,159);
   SetIndexShift(0,Advance);
   SetIndexShift(1,Advance);
   SetIndexShift(2,Advance);
   SetIndexBuffer(0,LineBuffer);
   SetIndexBuffer(1,UpBuffer);
   SetIndexBuffer(2,DnBuffer);
   SetIndexBuffer(3,smin);
   SetIndexBuffer(4,smax);
   
   IndicatorDigits(MarketInfo(Symbol(),MODE_DIGITS));
//---- name for DataWindow and indicator subwindow label
   short_name="StepMA("+StepSize+","+Kv+","+StepSize+")";
   IndicatorShortName(short_name);
   SetIndexLabel(0,short_name);
   SetIndexLabel(1,"UpTrend");
   SetIndexLabel(2,"DownTrend"); 
//----
   SetIndexEmptyValue(0,0.0);
   SetIndexEmptyValue(1,0.0);
   SetIndexEmptyValue(2,0.0);
   
   SetIndexDrawBegin(0,Length);
   SetIndexDrawBegin(1,Length);
   SetIndexDrawBegin(2,Length);
//----
   return(0);
  }

//+------------------------------------------------------------------+
//| StepMA_v6                                                         |
//+------------------------------------------------------------------+
int start()
  {
   int i,shift,trend,Step;
   double smin0,smax0,smin1,smax1,ATRmin=1000000,ATRmax=-1000000,AvgRange,ATR0;
	    
	if(BarsNumber>0) int Nbars=BarsNumber; else Nbars=Bars;
   
   for(shift=Nbars-1-Length;shift>=0;shift--) 
   {	
   
   if( StepSize==0 ) 
   {
        AvgRange=0;
	     for (i=Length;i>=1;i--)
	     { 
            AvgRange+= (High[shift+i]-Low[shift+i]);
        }
	     ATR0 = AvgRange/Length;
	if (shift>0)
	{
	if (ATR0>ATRmax) ATRmax=ATR0;
	if (ATR0<ATRmin) ATRmin=ATR0;
	}
	
	Step=0.5*Kv*(ATRmax+ATRmin)/Point; 
	}
	else
	{Step=Kv*StepSize;}
				
	Comment (" StepSize= ", Step);
	if (HighLow)
	  {
	  smax[shift]=Low[shift]+2.0*Step*Point;
	  smin[shift]=High[shift]-2.0*Step*Point;
     } 	
	else  	 
	  {
	  smax[shift]=Close[shift]+2.0*Step*Point;
	  smin[shift]=Close[shift]-2.0*Step*Point;
	  }
	  
	  if (Close[shift]>smax[shift+1])  trend=1; 
	  if (Close[shift]<smin[shift+1])  trend=-1;
	  
	  if(trend>0)
	  {
	  if(smin[shift]<smin[shift+1]) smin[shift]=smin[shift+1];
	  double Line=smin[shift]+Step*Point;
	  if(Color) {UpBuffer[shift]=smin[shift];DnBuffer[shift]=-1.0;}
	  } 
	  else
	  {
	  if(smax[shift]>smax[shift+1]) smax[shift]=smax[shift+1];
	  Line=smax[shift]-Step*Point;
	  if(Color) {DnBuffer[shift]=smax[shift];UpBuffer[shift]=-1.0;}
	  }
	  LineBuffer[shift]=Line+Percentage/100.0*Step*Point;
	 }
		
	return(0);	
 }