//+------------------------------------------------------------------+
//|                                             StepMA_Stoch_KV1.mq4 |
//|                           Copyright © 2005, TrendLaboratory Ltd. |
//|                                       E-mail: igorad2004@list.ru |
//|                           modified by Kalenzo -> simone@konto.pl |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2005, TrendLaboratory Ltd."
#property link      "E-mail: igorad2004@list.ru"
//----
#property indicator_separate_window
#property indicator_buffers 2
#property indicator_color1 Red
#property indicator_color2 Green
//---- input parameters
extern int PeriodWATR=10;
extern double Kwatr=1.0000;
extern int HighLow=0;
extern int NumberOfBarsToCalculate=500;
//---- indicator buffers
double LineMinBuffer[];
double LineMidBuffer[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
  int init()
  {
   Comment("");
//---- indicator line
   SetIndexStyle(0,DRAW_HISTOGRAM,STYLE_SOLID,2);
   SetIndexStyle(1,DRAW_HISTOGRAM,STYLE_SOLID,2);
   SetIndexBuffer(0,LineMinBuffer);
   SetIndexBuffer(1,LineMidBuffer);
   IndicatorDigits(MarketInfo(Symbol(),MODE_DIGITS));
//---- name for DataWindow and indicator subwindow label
   //short_name="StepMA Stoch("+PeriodWATR+","+Kwatr+","+HighLow+")";
   SetIndexLabel(0,"StepMA Stoch 1");
   SetIndexLabel(1,"StepMA Stoch 2");
//----
   SetIndexDrawBegin(0,PeriodWATR);
   SetIndexDrawBegin(1,PeriodWATR);
   ArrayInitialize(LineMinBuffer,0);
   ArrayInitialize(LineMidBuffer,0);
   SetIndexEmptyValue(0,0);
   SetIndexEmptyValue(1,0);
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| StepMA_3D_v1                                                     |
//+------------------------------------------------------------------+
int start()
  {
   string short_name;
   short_name="Max bars to count: |"+(Bars-1)+"| ";
   IndicatorShortName(short_name);
//----
   int      i,shift,TrendMin,TrendMax,TrendMid;
   double   SminMin0,SmaxMin0,SminMin1,SmaxMin1,SumRange,dK,WATR0,WATRmax,WATRmin,WATRmid;
   double   SminMax0,SmaxMax0,SminMax1,SmaxMax1,SminMid0,SmaxMid0,SminMid1,SmaxMid1;
   double   linemin,linemax,linemid,Stoch1,Stoch2,bsmin,bsmax;
   double prev_y=0,prev_b=0;
//----
   for(shift=NumberOfBarsToCalculate-1;shift>=0;shift--)
     {
      SumRange=0;
      for(i=PeriodWATR-1;i>=0;i--)
        {
         dK=1+1.0*(PeriodWATR-i)/PeriodWATR;
         SumRange+= dK*MathAbs(High[i+shift]-Low[i+shift]);
        }
      WATR0=SumRange/PeriodWATR;
//----
      WATRmax=MathMax(WATR0,WATRmax);
      if (shift==NumberOfBarsToCalculate-1-PeriodWATR) WATRmin=WATR0;
      WATRmin=MathMin(WATR0,WATRmin);
//----
      int StepSizeMin=MathRound(Kwatr*WATRmin/Point);
      int StepSizeMax=MathRound(Kwatr*WATRmax/Point);
      int StepSizeMid=MathRound(Kwatr*0.5*(WATRmax+WATRmin)/Point);
//----
      if (HighLow>0)
        {
         SmaxMin0=Low[shift]+2*StepSizeMin*Point;
         SminMin0=High[shift]-2*StepSizeMin*Point;
         SmaxMax0=Low[shift]+2*StepSizeMax*Point;
         SminMax0=High[shift]-2*StepSizeMax*Point;
         SmaxMid0=Low[shift]+2*StepSizeMid*Point;
         SminMid0=High[shift]-2*StepSizeMid*Point;
//----
         if(Close[shift]>SmaxMin1) TrendMin=1;
         if(Close[shift]<SminMin1) TrendMin=-1;
         if(Close[shift]>SmaxMax1) TrendMax=1;
         if(Close[shift]<SminMax1) TrendMax=-1;
         if(Close[shift]>SmaxMid1) TrendMid=1;
         if(Close[shift]<SminMid1) TrendMid=-1;
        }
      if (HighLow==0)
        {
         SmaxMin0=Close[shift]+2*StepSizeMin*Point;
         SminMin0=Close[shift]-2*StepSizeMin*Point;
         SmaxMax0=Close[shift]+2*StepSizeMax*Point;
         SminMax0=Close[shift]-2*StepSizeMax*Point;
         SmaxMid0=Close[shift]+2*StepSizeMid*Point;
         SminMid0=Close[shift]-2*StepSizeMid*Point;
//----
         if(Close[shift]>SmaxMin1) TrendMin=1;
         if(Close[shift]<SminMin1) TrendMin=-1;
         if(Close[shift]>SmaxMax1) TrendMax=1;
         if(Close[shift]<SminMax1) TrendMax=-1;
         if(Close[shift]>SmaxMid1) TrendMid=1;
         if(Close[shift]<SminMid1) TrendMid=-1;
        }
      if(TrendMin>0 && SminMin0<SminMin1) SminMin0=SminMin1;
      if(TrendMin<0 && SmaxMin0>SmaxMin1) SmaxMin0=SmaxMin1;
      if(TrendMax>0 && SminMax0<SminMax1) SminMax0=SminMax1;
      if(TrendMax<0 && SmaxMax0>SmaxMax1) SmaxMax0=SmaxMax1;
      if(TrendMid>0 && SminMid0<SminMid1) SminMid0=SminMid1;
      if(TrendMid<0 && SmaxMid0>SmaxMid1) SmaxMid0=SmaxMid1;
      if (TrendMin>0) linemin=SminMin0+StepSizeMin*Point;
      if (TrendMin<0) linemin=SmaxMin0-StepSizeMin*Point;
      if (TrendMax>0) linemax=SminMax0+StepSizeMax*Point;
      if (TrendMax<0) linemax=SmaxMax0-StepSizeMax*Point;
      if (TrendMid>0) linemid=SminMid0+StepSizeMid*Point;
      if (TrendMid<0) linemid=SmaxMid0-StepSizeMid*Point;
//----
      bsmin=linemax-StepSizeMax*Point;
      bsmax=linemax+StepSizeMax*Point;
      Stoch1=NormalizeDouble((linemin-bsmin)/(bsmax-bsmin),6);
      Stoch2=NormalizeDouble((linemid-bsmin)/(bsmax-bsmin),6);
      prev_y=(Stoch1 - Stoch2);
        if(prev_y<0.0)
        {
         LineMinBuffer[shift]=prev_y;
         LineMidBuffer[shift]=0;
        }
        else if(prev_y>0.0)
        {
            LineMidBuffer[shift]=prev_y;
            LineMinBuffer[shift]=0;
           }
      //prev_y = Stoch1;
      //prev_b = Stoch2;
      SminMin1=SminMin0;
      SmaxMin1=SmaxMin0;
      SminMax1=SminMax0;
      SmaxMax1=SmaxMax0;
      SminMid1=SminMid0;
      SmaxMid1=SmaxMid0;
     }
   return(0);
  }
//+------------------------------------------------------------------+