Support_and_Resistance_

//+------------------------------------------------------------------+
//|                                          Support and Resistance  |
//|                                 Copyright © 2004  Barry Stander  |
//|                          http://myweb.absa.co.za/stander/4meta/  |
//+------------------------------------------------------------------+
#property copyright "Click here: Barry Stander"
#property link      "http://myweb.absa.co.za/stander/4meta/"

#property indicator_chart_window
#property indicator_buffers 2
#property indicator_color1 Red
#property indicator_color2 Blue
//---- buffers
double v1[];
double v2[];
double val1;
double val2;
int i;
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+  
int init()
  {
//---- drawing settings
   SetIndexArrow(0,119);
   SetIndexArrow(1,119);
//----  
   SetIndexStyle(0,DRAW_ARROW,STYLE_DOT,1);
   SetIndexDrawBegin(0,i-1);
   SetIndexBuffer(0,v1);
   SetIndexLabel(0,"Resistance");
//----    
   SetIndexStyle(1,DRAW_ARROW,STYLE_DOT,1);
   SetIndexDrawBegin(1,i-1);
   SetIndexBuffer(1,v2);
   SetIndexLabel(1,"Support");
//---- 
   return(0);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int start()
  {
   int counted_bars=IndicatorCounted();
   if(counted_bars<0) return(-1);
   if(counted_bars>0) counted_bars--;
   int limit=Bars-counted_bars;
   if(counted_bars==0) limit-=1+1;
   int i=limit;
   while(i>=0)
     {
      val1=iFractals(NULL,0,MODE_UPPER,i);
      //----
      if(val1>0)
         v1[i]=High[i];
      else
         v1[i]=v1[i+1];
      val2=iFractals(NULL,0,MODE_LOWER,i);
      //----
      if(val2>0)
         v2[i]=Low[i];
      else
         v2[i]=v2[i+1];
      i--;
     }
   return(0);
  }
//+------------------------------------------------------------------+