How to determine if price returned to a certain region of values or not on a specific timeframe

Question

My code below draws a rectangle based on certain conditions. I want to add another condition for drawing the rectangle. The rectangle is drawn from the open to the high of a bullish candle with index (i+1) as shown in the code. How can I tell if :

1. price has already reentered the region
2. price has passed the lower value (bullish candle open) of the region

so that I don’t even draw the rectangle the first place.

int NumOfDisplayBars = 2000;
string prefix="RectRegion";

input bool onlyFreshZones = true;

bool isCandlePattern(int candleIndex, ENUM_TIMEFRAMES cPeriod)  {
   
   
   if ( (iOpen(  _Symbol, cPeriod, candleIndex) > iClose(  _Symbol, cPeriod, candleIndex)) &&
        (iOpen(  _Symbol, cPeriod, candleIndex + 1) < iClose(  _Symbol, cPeriod, candleIndex + 1)) &&
        (iOpen(  _Symbol, cPeriod, candleIndex + 2) > iClose(  _Symbol, cPeriod, candleIndex + 2))
   ){
         
         double upperWickC1 = iHigh(  _Symbol, cPeriod, candleIndex ) - iOpen( _Symbol, cPeriod, candleIndex );
         double bodyC1 = iOpen(  _Symbol, cPeriod, candleIndex ) - iClose( _Symbol, cPeriod, candleIndex );
         double lowerWickC1 = iClose(  _Symbol, cPeriod, candleIndex ) - iLow( _Symbol, cPeriod, candleIndex );
   
         double upperWickC2 = iHigh(  _Symbol, cPeriod, candleIndex + 2) - iOpen( _Symbol, cPeriod, candleIndex + 2);
         double bodyC2 = iOpen(  _Symbol, cPeriod, candleIndex + 2) - iClose( _Symbol, cPeriod, candleIndex + 2);
         double lowerWickC2 = iClose(  _Symbol, cPeriod, candleIndex + 2) - iLow( _Symbol, cPeriod, candleIndex + 2);
   
   
         if ( (iClose(  _Symbol, cPeriod, candleIndex) < iOpen(  _Symbol, cPeriod, candleIndex + 1)) && 
         (iOpen(  _Symbol, cPeriod, candleIndex + 2) > iClose(  _Symbol, cPeriod, candleIndex + 1)) &&
         (bodyC1 > upperWickC1 + lowerWickC1) && (bodyC2 > upperWickC2 + lowerWickC2)
         /*&&
         (iOpen(  _Symbol, cPeriod, candleIndex) > iClose(  _Symbol, cPeriod, candleIndex + 1)) && 
         (iClose(  _Symbol, cPeriod, candleIndex + 2) < iOpen(  _Symbol, cPeriod, candleIndex + 1))*/
         
         ) {
              
             if (onlyFreshZones)  {
            // // finding highest high on timeframe
            double c_candle[];
            ArrayResize(c_candle,candleIndex);

            for(int i=candleIndex-1;i>0;i--)
            {
                c_candle[i]=iHigh(Symbol(),PERIOD_CURRENT,i);
               
            }
            int cC=ArrayMaximum(c_candle,0,WHOLE_ARRAY);
            
            
            if (iOpen(  _Symbol, cPeriod, candleIndex + 1) > iHigh(  _Symbol, cPeriod, cC + 1)) {
               // checking to make sure highest high hasn't passed bull candle's open 
               return true;  
            
            }
            
            
            
            else
            return false;
            }
            
            
            else
            return true;
            
            
            
         }
         
      else
      return false;
   }
   
   
   else
      return false;
      
     
}

void showRectRegion()   {
   
    for (int i=NumOfDisplayBars;i>=1;i--)   {
         
     if (isCandlePattern(i, 0))   {
          drawRectangle(i + 2,iHigh(_Symbol,0,i + 1),iOpen(_Symbol,0,i + 1), 0, clrOrange);
     }
   }
}

bool drawRectangle(int candleInt,const double top,const double bottom, ENUM_TIMEFRAMES cDuration, color rectColor)
{ 
     bool checkBarCount = true;
     int useCurrDuration = PeriodSeconds(cDuration)/PeriodSeconds();   
         
    const datetime starts = iTime(_Symbol,_Period,candleInt);
    
    const datetime ends = starts + useCurrDuration*PeriodSeconds();
    const string name=prefix+"_"+"_"+TimeToString(starts)+TimeToString(ends);
    if(!ObjectCreate(0,name,OBJ_RECTANGLE,0,starts ,top, ends, bottom))
    {
        return false;
    }
  
    
   ObjectSetInteger(0,name,OBJPROP_COLOR, rectColor);
    
   ObjectSetInteger(0,name,OBJPROP_STYLE, STYLE_DASHDOT);

   ObjectSetInteger(0,name,OBJPROP_WIDTH,1);

   ObjectSetInteger(0,name,OBJPROP_FILL, true);
     
    return true;
}

void OnDeinit(const int reason){ObjectsDeleteAll(0,prefix);}


void OnTick()
{
   
   showRectRegion();
}