//+------------------------------------------------------------------+
//|                                         #MTF Hull Trend Bars.mq4 |
//|                      Copyright © 2006, MetaQuotes Software Corp. |
//|                                        http://www.metaquotes.net |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2006, Eli hayun."
#property link      "http://www.elihayun.com"

#property indicator_separate_window
#property indicator_minimum 0
#property indicator_maximum 5
#property indicator_buffers 8
#property indicator_color1 Red
#property indicator_color2 Red
#property indicator_color3 Red
#property indicator_color4 Red
#property indicator_color5 Blue
#property indicator_color6 Blue
#property indicator_color7 Blue
#property indicator_color8 Blue
//---- buffers
double ExtMapBuffer1[];
double ExtMapBuffer2[];
double ExtMapBuffer3[];
double ExtMapBuffer4[];
double ExtMapBuffer5[];
double ExtMapBuffer6[];
double ExtMapBuffer7[];
double ExtMapBuffer8[];


extern string  CustomIndicator = "PCCI-as a filter";

extern int Maxbars   = 1000;
extern bool UseAlert = true;




extern int Rperiod = 15;
extern int LSMA_Period = 5;

extern int    TF1  = PERIOD_M5;
extern int    TF2  = PERIOD_M15;
extern int    TF3  = PERIOD_M30;
extern int    TF4  = PERIOD_H1;

//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
//---- indicators
   SetIndexStyle(0,DRAW_ARROW);
   SetIndexArrow(0,117);
   SetIndexBuffer(0,ExtMapBuffer1);
   SetIndexEmptyValue(0,0.0);
   SetIndexStyle(1,DRAW_ARROW);
   SetIndexArrow(1,117);
   SetIndexBuffer(1,ExtMapBuffer2);
   SetIndexEmptyValue(1,0.0);
   SetIndexStyle(2,DRAW_ARROW);
   SetIndexArrow(2,117);
   SetIndexBuffer(2,ExtMapBuffer3);
   SetIndexEmptyValue(2,0.0);
   SetIndexStyle(3,DRAW_ARROW);
   SetIndexArrow(3,117);
   SetIndexBuffer(3,ExtMapBuffer4);
   SetIndexEmptyValue(3,0.0);
   SetIndexStyle(4,DRAW_ARROW);
   SetIndexArrow(4,117);
   SetIndexBuffer(4,ExtMapBuffer5);
   SetIndexEmptyValue(4,0.0);
   SetIndexStyle(5,DRAW_ARROW);
   SetIndexArrow(5,117);
   SetIndexBuffer(5,ExtMapBuffer6);
   SetIndexEmptyValue(5,0.0);
   SetIndexStyle(6,DRAW_ARROW);
   SetIndexArrow(6,117);
   SetIndexBuffer(6,ExtMapBuffer7);
   SetIndexEmptyValue(6,0.0);
   SetIndexStyle(7,DRAW_ARROW);
   SetIndexArrow(7,117);
   SetIndexBuffer(7,ExtMapBuffer8);
   SetIndexEmptyValue(7,0.0);
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
//----
   
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
  {
   int    counted_bars=IndicatorCounted();
//----
   int limit;
   int TF[] = {0,0,0,0};
   
   TF[0] = TF1;
   TF[1] = TF2;
   TF[2] = TF3;
   TF[3] = TF4;
   
   limit = MathMin(counted_bars,Maxbars);
   if (limit ==0)
      limit = Maxbars;
   
   int levels  = 0;
   int pLevels = 0;
   for (int ii=0; ii<limit; ii++)
   {
      ExtMapBuffer1[ii] = 0;
      ExtMapBuffer2[ii] = 0;
      ExtMapBuffer3[ii] = 0;
      ExtMapBuffer4[ii] = 0;
      ExtMapBuffer5[ii] = 0;
      ExtMapBuffer6[ii] = 0;
      ExtMapBuffer7[ii] = 0;
      ExtMapBuffer8[ii] = 0;
      for (int jj=0; jj<4; jj++)
      {
         int y = iBarShift(NULL, TF[jj], Time[ii]);
         bool isUp;
         isUp = GetCustomBars(TF[jj], y);
         SetIndicator(isUp, jj, ii);
         if (ii == 0 && isUp)
            levels++;
         if (ii == 0 && !isUp)
            levels--;

         if (ii == 1 && isUp)
            pLevels++;
         if (ii == 1 && !isUp)
            pLevels--;
      }
      if (ii==1)
         if (((levels == 4) || (levels == -4)) && MathAbs(pLevels) != 4)
            if (UseAlert && NewBar())
            {
               PlaySound("expert.wav");
               Comment("Changing direction");
            }
   } 
//----
   return(0);
  }
//+------------------------------------------------------------------+

bool GetCustomBars(int TF, int shift)
{

   double h = iCustom(Symbol(), TF, CustomIndicator, 0, shift);
   
   return(h<0);
}

void SetIndicator(bool isUp, int ind, int shift)
{
   if (isUp)
   {
      switch (ind) 
      {
         case 3:  ExtMapBuffer1[shift] = ind+1; break;
         case 2:  ExtMapBuffer2[shift] = ind+1; break;
         case 1:  ExtMapBuffer3[shift] = ind+1; break;
         case 0:  ExtMapBuffer4[shift] = ind+1; break;
      }
   } else {
         switch (ind)
         { 
            case 3:  ExtMapBuffer5[shift] = ind+1; break;
            case 2:  ExtMapBuffer6[shift] = ind+1; break;
            case 1:  ExtMapBuffer7[shift] = ind+1; break;
            case 0:  ExtMapBuffer8[shift] = ind+1; break;
         }
   }
}


bool NewBar()
{
   int p = 0;
   static datetime dtCurrTime = 0;
   
   if (iTime(NULL, p, 0) != dtCurrTime)
   {
      dtCurrTime = iTime(NULL, p , 0);
      return(true);
   }
   return(false);
}