//+------------------------------------------------------------------+
//| StepMA_Stoch_v1.mq4 |
//| Copyright © 2005, TrendLaboratory Ltd. |
//| E-mail: igorad2004@list.ru |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2005, TrendLaboratory Ltd."
#property link ""

#property indicator_separate_window
#property indicator_buffers 2
#property indicator_color1 Yellow
#property indicator_color2 DeepSkyBlue
#property indicator_minimum 0
#property indicator_maximum 1
//---- input parameters
extern int PeriodWATR=10;
extern double Kwatr=1.0000;
extern int HighLow=0;
//---- indicator buffers
double LineMinBuffer[];
double LineMidBuffer[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
string short_name;
//---- indicator line
SetIndexStyle(0,DRAW_LINE,STYLE_SOLID,1);
SetIndexStyle(1,DRAW_LINE,STYLE_SOLID,1);
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+")";
IndicatorShortName(short_name);
SetIndexLabel(0,"StepMA Stoch 1");
SetIndexLabel(1,"StepMA Stoch 2");
//----
SetIndexDrawBegin(0,PeriodWATR);
SetIndexDrawBegin(1,PeriodWATR);
//----
return(0);
}

//+------------------------------------------------------------------+
//| StepMA_3D_v1 |
//+------------------------------------------------------------------+
int start()
{
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;

for(shift=Bars-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==Bars-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=(linemin-bsmin)/(bsmax-bsmin);
Stoch2=(linemid-bsmin)/(bsmax-bsmin);

LineMinBuffer[shift]=Stoch1;
LineMidBuffer[shift]=Stoch2;


SminMin1=SminMin0;
SmaxMin1=SmaxMin0;

SminMax1=SminMax0;
SmaxMax1=SmaxMax0;

SminMid1=SminMid0;
SmaxMid1=SmaxMid0;
}
return(0);
}