#property indicator_chart_window
#property indicator_buffers 3
#property indicator_color1 Yellow
#property indicator_color2 Lime
#property indicator_color3 Lime


//---- input parameters
static int HL_Hours = 24; //4 = 4 hours 
extern int distancefromopen=30;



//---- indicator buffers
double openbuffer[];
double topbuffer[];
double bottombuffer[];



int init()
{
   
   SetIndexBuffer(0, openbuffer);
   SetIndexStyle(0, DRAW_LINE, 0,3);
  
   SetIndexStyle(1,DRAW_LINE,STYLE_SOLID, 2);
   SetIndexArrow(1,233);
   SetIndexBuffer(1,topbuffer);
   SetIndexEmptyValue(1,0.0);
   
   SetIndexStyle(2,DRAW_LINE,STYLE_SOLID, 2);
   SetIndexArrow(2,234);
   SetIndexBuffer(2,bottombuffer);
   SetIndexEmptyValue(2,0.0);
 

   return(0);
}

int deinit()
{
       ObjectsDeleteAll(0,OBJ_LABEL); 

   return(0);
}

int start()
{
   int count, cur_hour, prev_hour = 0;
   double hour_high, hour_low, H, L,O, A = 0;

   if (Period() >= PERIOD_D1) return(0);
   
   for (count=Bars;count>=0;count--) 
   {
      topbuffer[count]=0; bottombuffer[count]=0;
      cur_hour = TimeHour(Time[count]);

      if (prev_hour != cur_hour) 
      {
         prev_hour = cur_hour;


if (!MathMod(cur_hour,HL_Hours)) 
{
         
            H = hour_high;
            A = (hour_high+hour_low)*0.5;
            L = hour_low;
            O=Open[count];

            hour_high = High[count];
            hour_low = Low[count];
         }
      }

      hour_high = MathMax(hour_high, High[count]);
      hour_low = MathMin(hour_low, Low[count]);
     
      openbuffer[count]=O;
      topbuffer[count]=O+distancefromopen*Point;
      bottombuffer[count]=O-distancefromopen*Point;
      

   }
    

   return(0);
}