OBV 2.1 Bands Arrows TT

#property indicator_separate_window
#property indicator_buffers 5
#property indicator_color1  DodgerBlue
#property indicator_color2  Gray
#property indicator_color3  Gray
#property indicator_color4  clrRed
#property indicator_color5  clrLime
#property indicator_width1  2
#property indicator_width4  3
#property indicator_width5  3
#property indicator_style2  STYLE_DOT
#property indicator_style3  STYLE_DOT
#property strict

extern ENUM_TIMEFRAMES TimeFrame = PERIOD_CURRENT;// Time frame to use
extern int    BandPeriod         = 20;            // Bands period
extern double BandDeviation      = 1.618;          // Bands deviation
extern bool   alertsOn           = true;         // Turn alerts on?
extern bool   alertsOnCurrent    = false;         // Alerts on a current bar?
extern bool   alertsMessage      = true;          // Alerts should show pop-up message?
extern bool   alertsSound        = true;         // Alerts should play alert sound?
extern bool   alertsEmail        = false;         // Alerts should send email?
extern bool   alertsMobile       = true;          // Alerts should send message to phone?
extern bool   arrowsVisible      = true;          // Arrows visible?
extern string arrowsIdentifier   = "obv 2'1 arrows"; // Arrows unique ID
extern double arrowsDisplacement = 1.0;           // Arros displacement (gap)
extern color  arrowsUpColor      = clrLimeGreen;  // Arrows up color
extern color  arrowsDnColor      = clrRed;        // Arrows down color
extern bool   Interpolate        = false;          // Interpolate in multi time frame mode?

double obv[];
double bandUp[];
double bandDn[];   double SEL[], BUY[];
double trend[];
string IndikName;
bool   returnBars;

int init()
{
      // код доступен только после оплаты
   }

int deinit()
{
   string lookFor       = arrowsIdentifier+":";
   int    lookForLength = StringLen(lookFor);
   for (int i=ObjectsTotal()-1; i>=0; i--)
   {
      string objectName = ObjectName(i);
         if (StringSubstr(objectName,0,lookForLength) == lookFor) ObjectDelete(objectName);
   }
   return(0); 
}

int start()
{
      // код доступен только после оплаты
   }
   int CountedBars=IndicatorCounted();
      if(CountedBars<0) return(-1);
      if(CountedBars>0) CountedBars--;
         int limit = MathMin(Bars-CountedBars,Bars-1);
            if (returnBars) { obv[0] = MathMin(limit+1,Bars-1); return(0); }
            if (TimeFrame != _Period)
            {
               limit = (int)MathMax(limit,MathMin(Bars-1,iCustom(NULL,TimeFrame,IndikName,-99,0,0)*TimeFrame/_Period));
               for(int i=limit; i>=0; i--)
               {
                  int y = iBarShift(NULL,TimeFrame,Time[i]);
                  int x = y;   if (i<Bars-1) x = iBarShift(NULL,TimeFrame,Time[i+1]);
                  if(x!=y) {
                     SEL[i] = iCustom(NULL,TimeFrame,IndikName,PERIOD_CURRENT,BandPeriod,BandDeviation,alertsOn,alertsOnCurrent,alertsMessage,alertsSound,alertsEmail,alertsMobile,arrowsVisible,arrowsIdentifier,arrowsDisplacement,arrowsUpColor,arrowsDnColor,3,y); 
                     BUY[i] = iCustom(NULL,TimeFrame,IndikName,PERIOD_CURRENT,BandPeriod,BandDeviation,alertsOn,alertsOnCurrent,alertsMessage,alertsSound,alertsEmail,alertsMobile,arrowsVisible,arrowsIdentifier,arrowsDisplacement,arrowsUpColor,arrowsDnColor,4,y); }

                  obv[i]    = iCustom(NULL,TimeFrame,IndikName,PERIOD_CURRENT,BandPeriod,BandDeviation,alertsOn,alertsOnCurrent,alertsMessage,alertsSound,alertsEmail,alertsMobile,arrowsVisible,arrowsIdentifier,arrowsDisplacement,arrowsUpColor,arrowsDnColor,0,y);
                  bandUp[i] = iCustom(NULL,TimeFrame,IndikName,PERIOD_CURRENT,BandPeriod,BandDeviation,alertsOn,alertsOnCurrent,a

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