Volatility.Pivot_v3

//+------------------------------------------------------------------+
//|                                             Volatility.Pivot.mq4 |
//+------------------------------------------------------------------+
#property copyright "thanks to S.B.T. (Japan)"
#property link      "http://sufx.core.t3-ism.net/" //<<< convert this from VT, thanks mate !!!
//----
#property indicator_chart_window
#property indicator_buffers 2
#property indicator_color1 Red
//---- input parameters
extern double     atr_range=100;
extern double     ima_range=10;
extern double     atr_factor=3;
extern int        Mode=0;
extern double     DeltaPrice=30;
//---- buffers
double TrStop[];
double ATR[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
//---- indicators
   SetIndexStyle(0, DRAW_LINE,STYLE_SOLID,1);
   SetIndexBuffer(0, TrStop);
   SetIndexStyle(1, DRAW_NONE);
   SetIndexBuffer(1, ATR);
//----
   string short_name="!! RisenbergVolatilityCapture";
   IndicatorShortName(short_name);
   SetIndexLabel(1,"range base");
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custor indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
//---- 
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
  {
   int counted_bars=IndicatorCounted();
   int limit;
   int i;
//----
   double DeltaStop;
//----
   limit=Bars;
     for(i=0; i < limit; i ++) 
     {
      ATR[i]=iATR(NULL,0,atr_range,i);
     }
     for(i=limit - 1; i>=0; i --) 
     {
        if (Mode==0) 
        {
         DeltaStop=iMAOnArray(ATR,0,ima_range,0,MODE_EMA,i) * atr_factor;
         //DeltaStop = iATR(NULL,0,atr_range,i) * atr_factor;
         }
          else 
         {
         DeltaStop=DeltaPrice*Point;
        }
        if (Close[i]==TrStop[i + 1]) 
        {
         TrStop[i]=TrStop[i + 1];
         }
          else 
         {
           if (Close[i+1]<TrStop[i+1] && Close[i]<TrStop[i+1]) 
           {
            TrStop[i]=MathMin(TrStop[i + 1], Close[i] + DeltaStop);
            }
             else 
            {
              if (Close[i+1]>TrStop[i+1] && Close[i]>TrStop[i+1]) 
              {
               TrStop[i]=MathMax(TrStop[i+1], Close[i] - DeltaStop);
               }
                else 
               {
               if (Close[i] > TrStop[i+1]) TrStop[i]=Close[i] - DeltaStop; else TrStop[i]=Close[i] + DeltaStop;
              }
           }
        }
     }
//----
   return(0);
  }
//+------------------------------------------------------------------+