//+------------------------------------------------------------------+
//|                                                    Ma Filter.mq4 |
//|                                        Copyright © 2011, MadWill |
//|                                             http://www.evgeno.ru |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2011, MadWill"
#property link      "http://www.evgeno.ru"

#property indicator_separate_window
#property indicator_buffers 6
#property indicator_color1 Red
#property indicator_color2 Blue
#property indicator_color3 DarkGray
#property indicator_color4 LimeGreen
#property indicator_color5 Magenta
#property indicator_color6 White

#property  indicator_width1  2
#property  indicator_width2  2
#property  indicator_width4  2
#property  indicator_width5  2

extern int MA_Period=110;
extern int MA_Method=2;
extern int Hist_MA=25;
extern int Lenght=3000;
extern int Step=3;

//---- buffers
double ExtMapBuffer1[];
double ExtMapBuffer2[];
double ExtMapBuffer3[];
double ExtMapBuffer4[];
double ExtMapBuffer5[];
double ExtMapBuffer6[];
int BarTime,i,j;
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
//---- indicators
   SetIndexStyle(0,DRAW_HISTOGRAM);
   SetIndexBuffer(0,ExtMapBuffer1);
   SetIndexStyle(1,DRAW_HISTOGRAM);
   SetIndexBuffer(1,ExtMapBuffer2);
   SetIndexStyle(2,DRAW_HISTOGRAM);
   SetIndexBuffer(2,ExtMapBuffer3);
   SetIndexStyle(3,DRAW_ARROW,EMPTY,2);
   SetIndexArrow(3,217);
   SetIndexBuffer(3,ExtMapBuffer4);
   SetIndexEmptyValue(3,0.0);
   SetIndexStyle(4,DRAW_ARROW,EMPTY,2);
   SetIndexArrow(4,218);
   SetIndexBuffer(4,ExtMapBuffer5);
   SetIndexEmptyValue(4,0.0);
   SetIndexStyle(5,DRAW_LINE);
   SetIndexBuffer(5,ExtMapBuffer6);
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
//----

//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
  {

   int counted_bars=IndicatorCounted();
   if(counted_bars<0) return(-1);
   if(counted_bars>0) counted_bars--;
   int limit=Bars-counted_bars;
   if(counted_bars==0) limit-=1+Hist_MA;

   for(i=limit;i>=1;i--)

     {
      double NewLevel=iMA(Symbol(),0,MA_Period,0,MA_Method,0,i);
      double OldLevel=iMA(Symbol(),0,MA_Period,0,MA_Method,0,i+Step);
      ExtMapBuffer3[i]=NewLevel-OldLevel;
      double Lev;
      Lev=0;
      for(j=i;j<i+Hist_MA;j++)
        {
         Lev+=ExtMapBuffer3[j];
         //if(ExtMapBuffer1[j]!=0) Lev+=ExtMapBuffer1[j];
         //if(ExtMapBuffer2[j]!=0) Lev+=ExtMapBuffer2[j];
        }
      Lev=Lev/Hist_MA;
      ExtMapBuffer6[i]=Lev;
      if(ExtMapBuffer6[i]<ExtMapBuffer3[i])
        {
         ExtMapBuffer2[i]=ExtMapBuffer3[i];
         //ExtMapBuffer3[i]=0;
        }
      else ExtMapBuffer2[i]=0;

      if(ExtMapBuffer6[i]>ExtMapBuffer3[i])
        {
         ExtMapBuffer1[i]=ExtMapBuffer3[i];
         //ExtMapBuffer3[i]=0;
        }
      else ExtMapBuffer1[i]=0;
      if(ExtMapBuffer1[i]!=0 && ExtMapBuffer1[i+1]==0)
        {
         ExtMapBuffer5[i]=ExtMapBuffer3[i];
        }
      else ExtMapBuffer5[i]=0;
      if(ExtMapBuffer2[i]!=0 && ExtMapBuffer2[i+1]==0)
        {
         ExtMapBuffer4[i]=ExtMapBuffer3[i];
        }
      else ExtMapBuffer4[i]=0;
     }

/*
      double NewLevel=iMA(Symbol(),0,MA_Period,0,MA_Method,0,i);
      double OldLevel=iMA(Symbol(),0,MA_Period,0,MA_Method,0,i+Step);
      ExtMapBuffer3[i]=NewLevel-OldLevel;
      double Lev;
      Lev=0;
      for(j=i;j<i+Hist_MA;j++)
        {
         Lev+=ExtMapBuffer3[j];
         //if(ExtMapBuffer1[j]!=0) Lev+=ExtMapBuffer1[j];
         //if(ExtMapBuffer2[j]!=0) Lev+=ExtMapBuffer2[j];
        }
      Lev=Lev/Hist_MA;
      ExtMapBuffer6[i]=Lev;
      if(ExtMapBuffer6[i]<ExtMapBuffer3[i])
        {
         ExtMapBuffer2[i]=ExtMapBuffer3[i];
         //ExtMapBuffer3[i]=0;
        }
      else ExtMapBuffer2[i]=0;

      if(ExtMapBuffer6[i]>ExtMapBuffer3[i])
        {
         ExtMapBuffer1[i]=ExtMapBuffer3[i];
         //ExtMapBuffer3[i]=0;
        }
      else ExtMapBuffer1[i]=0;
*/
//----
   return(0);
  }
//+------------------------------------------------------------------+
int once()
  {
   for(i=Lenght;i>=1;i--)
     {
      double NewLevel=iMA(Symbol(),0,MA_Period,0,MA_Method,0,i);
      double OldLevel=iMA(Symbol(),0,MA_Period,0,MA_Method,0,i+Step);
      ExtMapBuffer3[i]=NewLevel-OldLevel;
      double Lev;
      Lev=0;
      for(j=i;j<i+Hist_MA;j++)
        {
         Lev+=ExtMapBuffer3[j];
         //if(ExtMapBuffer1[j]!=0) Lev+=ExtMapBuffer1[j];
         //if(ExtMapBuffer2[j]!=0) Lev+=ExtMapBuffer2[j];
        }
      Lev=Lev/Hist_MA;
      ExtMapBuffer6[i]=Lev;
      if(ExtMapBuffer6[i]<ExtMapBuffer3[i])
        {
         ExtMapBuffer2[i]=ExtMapBuffer3[i];
         //ExtMapBuffer3[i]=0;
        }
      else ExtMapBuffer2[i]=0;

      if(ExtMapBuffer6[i]>ExtMapBuffer3[i])
        {
         ExtMapBuffer1[i]=ExtMapBuffer3[i];
         //ExtMapBuffer3[i]=0;
        }
      else ExtMapBuffer1[i]=0;
      if(ExtMapBuffer1[i]!=0 && ExtMapBuffer1[i+1]==0)
        {
         ExtMapBuffer5[i]=ExtMapBuffer3[i];
        }
      else ExtMapBuffer5[i]=0;
      if(ExtMapBuffer2[i]!=0 && ExtMapBuffer2[i+1]==0)
        {
         ExtMapBuffer4[i]=ExtMapBuffer3[i];
        }
      else ExtMapBuffer4[i]=0;

     }
   if(ExtMapBuffer4[i]!=0) Alert("Signal BUY!");
   if(ExtMapBuffer5[i]!=0) Alert("Signal SELL!");

  }
//+------------------------------------------------------------------+