//+------------------------------------------------------------------+
//|                                                      Up&Down.mq4 |
//|                                                                  |
//|                                                                  |
//+------------------------------------------------------------------+
#property copyright ""
#property link      ""
//----
#property indicator_chart_window
#property indicator_buffers 2
#property indicator_color1 Lime
#property indicator_color2 Tomato
//---- input parameters
extern int       HL_period=3;
extern int       NumBars=200;
//---- buffers
double ExtMapBuffer1[];
double ExtMapBuffer2[];
//------
double ur[][2];
int h1[];
int l1[];
int hh=0;
int ll=0;
//----
double spread;
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
//---- indicators
   SetIndexStyle(0,DRAW_ARROW);
   SetIndexArrow(0,159);
   SetIndexBuffer(0,ExtMapBuffer1);
   SetIndexEmptyValue(0,0.0);
   SetIndexStyle(1,DRAW_ARROW);
   SetIndexArrow(1,159);
   SetIndexBuffer(1,ExtMapBuffer2);
   SetIndexEmptyValue(1,0.0);
//----
   ArrayResize(ur,NumBars+1);
   ArrayResize(h1,HL_period);
   ArrayResize(l1,HL_period);
//----
   spread=Ask-Bid;
   return(0);
  }
//+------------------------------------------------------------------+
//| Custor indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
//---- 
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
  {
   int   n,shift,Nbar,k,mm;
   double MaH,MaL;
//---- 
   if(Period()==5 )
     {
      ArrayInitialize(ur,0);
      ArrayInitialize(h1,0);
      ArrayInitialize(l1,0);
      for( shift=NumBars; shift>=0; shift-- )
        {
         if(TimeHour(Time[shift + 1])!=TimeHour(Time[shift]) )
           {
            Nbar=-1;
            k=0;
            mm=0;
            n=shift - 15;
            while( n<=shift + HL_period * 12 + 5 )
              {
               if(n < 0 )
                 {
                  n=1;
                  Nbar=0;
                 }
               if(TimeHour(Time[n + 1])!=TimeHour(Time[n]) && Nbar==-1 )
                 {
                  Nbar=n;
                  mm=n;
                  n++;
                  continue;
                 }
               if(TimeHour(Time[n + 1])!=TimeHour(Time[n]) && Nbar!=-1 )
                 {
                  h1[k]=Highest(NULL,0,MODE_HIGH,n - Nbar,n-(n-Nbar)+1);
                  l1[k]=Lowest(NULL,0,MODE_LOW,n - Nbar,n-(n-Nbar)+1);
                  k++;
                  Nbar=n;
                 }
               n++;
              }
            MaH=0;
            MaL=0;
            for( n=0; n<HL_period; n++ )
              {
               MaH=MaH + High[h1[n]]+spread;
               MaL=MaL + Low[l1[n]];
              }
            MaH=MaH/HL_period;
            MaL=MaL/HL_period;
            ur[shift][0]=MaH;
            ur[shift][1]=MaL;
            if(Close[mm + 1]+spread/2>=MaH){ ll=1; hh=0; }
            if(Close[mm + 1]+spread/2<=MaL){ hh=1; ll=0; }
           }
         if(ur[shift,1]==0 )
           {
            ur[shift][0]=ur[shift + 1][0];
            ur[shift][1]=ur[shift + 1][1];
           }
         if(ll==1 )
           {
            ExtMapBuffer2[shift]=0;
            ExtMapBuffer1[shift]=ur[shift][1];
           }
         if(hh==1 )
           {
            ExtMapBuffer1[shift]=0;
            ExtMapBuffer2[shift]=ur[shift][0];
           }
        }
      return(0);
     }
//-----------------------------
   if(Period()==15 )
     {
      ArrayInitialize(ur,0);
      ArrayInitialize(h1,0);
      ArrayInitialize(l1,0);
      for( shift=NumBars; shift>=0; shift-- )
        {
         if(TimeHour(Time[shift + 1])!=TimeHour(Time[shift]) )
           {
            Nbar=-1;
            k=0;
            mm=0;
            n=shift - 5;
            while( n<=shift + HL_period * 4 + 2 )
              {
               if(n < 0 )
                 {
                  n=1;
                  Nbar=0;
                 }
               if(TimeHour(Time[n + 1])!=TimeHour(Time[n]) && Nbar==-1 )
                 {
                  Nbar=n;
                  mm=n;
                  n++;
                  continue;
                 }
               if(TimeHour(Time[n + 1])!=TimeHour(Time[n]) && Nbar!=-1 )
                 {
                  h1[k]=Highest(NULL,0,MODE_HIGH,n - Nbar,n-(n-Nbar)+1);
                  l1[k]=Lowest(NULL,0,MODE_LOW,n - Nbar,n-(n-Nbar)+1);
                  k++;
                  Nbar=n;
                 }
               n++;
              }
            MaH=0;
            MaL=0;
            for( n=0; n<HL_period; n++ )
              {
               MaH=MaH + High[h1[n]]+spread;
               MaL=MaL + Low[l1[n]];
              }
            MaH=MaH/HL_period;
            MaL=MaL/HL_period;
            ur[shift][0]=MaH;
            ur[shift][1]=MaL;
            if(Close[mm + 1]+spread/2>=MaH){ ll=1; hh=0; }
            if(Close[mm + 1]+spread/2<=MaL){ hh=1; ll=0; }
           }
         if(ur[shift,1]==0 )
           {
            ur[shift][0]=ur[shift + 1][0];
            ur[shift][1]=ur[shift + 1][1];
           }
         if(ll==1 )
           {
            ExtMapBuffer2[shift]=0;
            ExtMapBuffer1[shift]=ur[shift][1];
           }
         if(hh==1 )
           {
            ExtMapBuffer1[shift]=0;
            ExtMapBuffer2[shift]=ur[shift][0];
           }
        }
      return(0);
     }
//-------------------------
   if(Period()==30 )
     {
      ArrayInitialize(ur,0);
      ArrayInitialize(h1,0);
      ArrayInitialize(l1,0);
      for( shift=NumBars; shift>=0; shift-- )
        {
         if(TimeMinute(Time[shift])==0 && (TimeHour(Time[shift])==0 || TimeHour(Time[shift])==4 || TimeHour(Time[shift])==8 || TimeHour(Time[shift])==12 || TimeHour(Time[shift])==16 || TimeHour(Time[shift])==20) )
           {
            Nbar=-1;
            k=0;
            mm=0;
            n=shift - 10;
            while( n<=shift + HL_period * 8 + 5 )
              {
               if(n < 0 )
                 {
                  n=1;
                  Nbar=0;
                 }
               if(TimeMinute(Time[n])==0 && (TimeHour(Time[n])==0 || TimeHour(Time[n])==4 || TimeHour(Time[n])==8 || TimeHour(Time[n])==12 || TimeHour(Time[n])==16 || TimeHour(Time[n])==20) && Nbar==-1 )
                 {
                  Nbar=n;
                  mm=n;
                  n++;
                  continue;
                 }
               if(TimeMinute(Time[n])==0 && (TimeHour(Time[n])==0 || TimeHour(Time[n])==4 || TimeHour(Time[n])==8 || TimeHour(Time[n])==12 || TimeHour(Time[n])==16 || TimeHour(Time[n])==20) && Nbar!=-1 )
                 {
                  h1[k]=Highest(NULL,0,MODE_HIGH,n - Nbar,n-(n-Nbar)+1);
                  l1[k]=Lowest(NULL,0,MODE_LOW,n - Nbar,n-(n-Nbar)+1);
                  k++;
                  Nbar=n;
                 }
               n++;
              }
            MaH=0;
            MaL=0;
            for( n=0; n<HL_period; n++ )
              {
               MaH=MaH + High[h1[n]]+spread;
               MaL=MaL + Low[l1[n]];
              }
            MaH=MaH/HL_period;
            MaL=MaL/HL_period;
            ur[shift][0]=MaH;
            ur[shift][1]=MaL;
            if(Close[mm + 1]+spread/2>=MaH){ ll=1; hh=0; }
            if(Close[mm + 1]+spread/2<=MaL){ hh=1; ll=0; }
           }
         if(ur[shift,1]==0 )
           {
            ur[shift][0]=ur[shift + 1][0];
            ur[shift][1]=ur[shift + 1][1];
           }
         if(ll==1 )
           {
            ExtMapBuffer2[shift]=0;
            ExtMapBuffer1[shift]=ur[shift][1];
           }
         if(hh==1 )
           {
            ExtMapBuffer1[shift]=0;
            ExtMapBuffer2[shift]=ur[shift][0];
           }
        }
      return(0);
     }
//----
   if(Period()==60 )
     {
      ArrayInitialize(ur,0);
      ArrayInitialize(h1,0);
      ArrayInitialize(l1,0);
      for( shift=NumBars; shift>=0; shift-- )
        {
         if(TimeMinute(Time[shift])==0 && (TimeHour(Time[shift])==0 || TimeHour(Time[shift])==4 || TimeHour(Time[shift])==8 || TimeHour(Time[shift])==12 || TimeHour(Time[shift])==16 || TimeHour(Time[shift])==20) )
           {
            Nbar=-1;
            k=0;
            mm=0;
            n=shift - 6;
            while( n<=shift + HL_period * 4 + 3 )
              {
               if(n < 0 )
                 {
                  Nbar=0;
                  n=1;
                 }
               if(TimeMinute(Time[n])==0 && (TimeHour(Time[n])==0 || TimeHour(Time[n])==4 || TimeHour(Time[n])==8 || TimeHour(Time[n])==12 || TimeHour(Time[n])==16 || TimeHour(Time[n])==20) && Nbar==-1 )
                 {
                  Nbar=n;
                  mm=n;
                  n++;
                  continue;
                 }
               if(TimeMinute(Time[n])==0 && (TimeHour(Time[n])==0 || TimeHour(Time[n])==4 || TimeHour(Time[n])==8 || TimeHour(Time[n])==12 || TimeHour(Time[n])==16 || TimeHour(Time[n])==20) && Nbar!=-1 )
                 {
                  h1[k]=Highest(NULL,0,MODE_HIGH,n - Nbar,n-(n-Nbar)+1);
                  l1[k]=Lowest(NULL,0,MODE_LOW,n - Nbar,n-(n-Nbar)+1);
                  k++;
                  Nbar=n;
                 }
               n++;
              }
            MaH=0;
            MaL=0;
            for( n=0; n<HL_period; n++ )
              {
               MaH=MaH + High[h1[n]]+spread;
               MaL=MaL + Low[l1[n]];
              }
            MaH=MaH/HL_period;
            MaL=MaL/HL_period;
            ur[shift][0]=MaH;
            ur[shift][1]=MaL;
            if(Close[mm + 1]+spread/2>=MaH){ ll=1; hh=0; }
            if(Close[mm + 1]+spread/2<=MaL){ hh=1; ll=0; }
           }
         if(ur[shift,1]==0 )
           {
            ur[shift][0]=ur[shift + 1][0];
            ur[shift][1]=ur[shift + 1][1];
           }
         if(ll==1 )
           {
            ExtMapBuffer2[shift]=0;
            ExtMapBuffer1[shift]=ur[shift][1];
           }
         if(hh==1 )
           {
            ExtMapBuffer1[shift]=0;
            ExtMapBuffer2[shift]=ur[shift][0];
           }
        }
      return(0);
     }
//--------------  
   if(Period()==240 )
     {
      ArrayInitialize(ur,0);
      ArrayInitialize(h1,0);
      ArrayInitialize(l1,0);
      for( shift=NumBars; shift>=0; shift-- )
        {
         if(TimeDay(Time[shift + 1])!=TimeDay(Time[shift]) )
           {
            Nbar=-1;
            k=0;
            mm=0;
            n=shift - 8;
            while( n<=shift + HL_period * 8 + 4 )
              {
               if(n < 0 )
                 {
                  Nbar=0;
                  n=1;
                 }
               if(TimeDay(Time[n + 1])!=TimeDay(Time[n]) && Nbar==-1 )
                 {
                  Nbar=n;
                  mm=n;
                  n++;
                  continue;
                 }
               if(TimeDay(Time[n + 1])!=TimeDay(Time[n]) && Nbar!=-1 )
                 {
                  h1[k]=Highest(NULL,0,MODE_HIGH,n - Nbar,n-(n-Nbar)+1);
                  l1[k]=Lowest(NULL,0,MODE_LOW,n - Nbar,n-(n-Nbar)+1);
                  k++;
                  Nbar=n;
                 }
               n++;
              }
            MaH=0;
            MaL=0;
            for( n=0; n<HL_period; n++ )
              {
               MaH=MaH + High[h1[n]]+spread;
               MaL=MaL + Low[l1[n]];
              }
            MaH=MaH/HL_period;
            MaL=MaL/HL_period;
            ur[shift][0]=MaH;
            ur[shift][1]=MaL;
            if(Close[mm + 1]+spread/2>=MaH){ ll=1; hh=0; }
            if(Close[mm + 1]+spread/2<=MaL){ hh=1; ll=0; }
           }
         if(ur[shift,1]==0 )
           {
            ur[shift][0]=ur[shift + 1][0];
            ur[shift][1]=ur[shift + 1][1];
           }
         if(ll==1 )
           {
            ExtMapBuffer2[shift]=0;
            ExtMapBuffer1[shift]=ur[shift][1];
           }
         if(hh==1 )
           {
            ExtMapBuffer1[shift]=0;
            ExtMapBuffer2[shift]=ur[shift][0];
           }
        }
      return(0);
     }
//----
   if(Period()==1440 )
     {
      ArrayInitialize(ur,0);
      ArrayInitialize(h1,0);
      ArrayInitialize(l1,0);
      for( shift=NumBars; shift>=0; shift-- )
        {
         if(TimeDayOfWeek(Time[shift + 1])==5 && TimeDayOfWeek(Time[shift])==1 )
           {
            Nbar=-1;
            k=0;
            mm=0;
            n=shift - 6;
            while( n<=shift + HL_period * 5 + 3 )
              {
               if(n < 0 )
                 {
                  Nbar=0;
                  n=1;
                 }
               if(TimeDayOfWeek(Time[n + 1])==5 && TimeDayOfWeek(Time[n])==1 && Nbar==-1 )
                 {
                  Nbar=n;
                  mm=n;
                  n++;
                  continue;
                 }
               if(TimeDayOfWeek(Time[n + 1])==5 && TimeDayOfWeek(Time[n])==1 && Nbar!=-1 )
                 {
                  h1[k]=Highest(NULL,0,MODE_HIGH,n - Nbar,n-(n-Nbar)+1);
                  l1[k]=Lowest(NULL,0,MODE_LOW,n - Nbar,n-(n-Nbar)+1);
                  k++;
                  Nbar=n;
                 }
               n++;
              }
            MaH=0;
            MaL=0;
            for( n=0; n<HL_period; n++ )
              {
               MaH=MaH + High[h1[n]]+spread;
               MaL=MaL + Low[l1[n]];
              }
            MaH=MaH/HL_period;
            MaL=MaL/HL_period;
            ur[shift][0]=MaH;
            ur[shift][1]=MaL;
            if(Close[mm + 1]+spread/2>=MaH){ ll=1; hh=0; }
            if(Close[mm + 1]+spread/2<=MaL){ hh=1; ll=0; }
           }
         if(ur[shift,1]==0 )
           {
            ur[shift][0]=ur[shift + 1][0];
            ur[shift][1]=ur[shift + 1][1];
           }
         if(ll==1 )
           {
            ExtMapBuffer2[shift]=0;
            ExtMapBuffer1[shift]=ur[shift][1];
           }
         if(hh==1 )
           {
            ExtMapBuffer1[shift]=0;
            ExtMapBuffer2[shift]=ur[shift][0];
           }
        }
      return(0);
     }
//----
   if(Period()==10080 )
     {
      ArrayInitialize(ur,0);
      ArrayInitialize(h1,0);
      ArrayInitialize(l1,0);
      for( shift=NumBars; shift>=0; shift-- )
        {
         if(TimeMonth(Time[shift + 1]+1440*60)!=TimeMonth(Time[shift]+1440*60) )
           {
            Nbar=-1;
            k=0;
            mm=0;
            n=shift - 8;
            while( n<=shift + HL_period * 8 + 4 )
              {
               if(n < 0 )
                 {
                  Nbar=0;
                  n=1;
                 }
               if(TimeMonth(Time[n + 1]+1440*60)!=TimeMonth(Time[n]+1440*60) && Nbar==-1 )
                 {
                  Nbar=n;
                  mm=n;
                  if(n>NumBars-18)Print(TimeToStr(Time[n]));
                  n++;
                  continue;
                 }
               if(TimeMonth(Time[n + 1]+1440*60)!=TimeMonth(Time[n]+1440*60) && Nbar!=-1 )
                 {
                  h1[k]=Highest(NULL,0,MODE_HIGH,n - Nbar,n-(n-Nbar)+1);
                  l1[k]=Lowest(NULL,0,MODE_LOW,n - Nbar,n-(n-Nbar)+1);
                  k++;
                  Nbar=n;
                 }
               n++;
              }
            MaH=0;
            MaL=0;
            for( n=0; n<HL_period; n++ )
              {
               MaH=MaH + High[h1[n]]+spread;
               MaL=MaL + Low[l1[n]];
              }
            MaH=MaH/HL_period;
            MaL=MaL/HL_period;
            ur[shift][0]=MaH;
            ur[shift][1]=MaL;
            if(Close[mm + 1]+spread/2>=MaH){ ll=1; hh=0; }
            if(Close[mm + 1]+spread/2<=MaL){ hh=1; ll=0; }
           }
         if(ur[shift,1]==0 )
           {
            ur[shift][0]=ur[shift + 1][0];
            ur[shift][1]=ur[shift + 1][1];
           }
         if(ll==1 )
           {
            ExtMapBuffer2[shift]=0;
            ExtMapBuffer1[shift]=ur[shift][1];
           }
         if(hh==1 )
           {
            ExtMapBuffer1[shift]=0;
            ExtMapBuffer2[shift]=ur[shift][0];
           }
        }
      return(0);
     }
//----
   return(0);
  }
//+------------------------------------------------------------------+