//+------------------------------------------------------------------+
//|                                                        |
//|                      Copyright © 2004, MetaQuotes Software Corp. |
//|                                       http://www.metaquotes.net/ |
//+------------------------------------------------------------------+
#property  copyright "Copyright © 2005, FX Sniper "
#property  link      "http://www.metaquotes.net/"

//---- indicator settings
#property  indicator_chart_window

#property indicator_buffers   4
#property indicator_color1  Yellow      
#property indicator_color2  Green
#property indicator_color3  Red
#property indicator_color4  White

//---- buffers
double ExtMapBuffer1[];  //Yellow
double ExtMapBuffer2[];  //Green
double ExtMapBuffer3[];  //Red
double XBuffer[];        //White
double XBuffer[];        //White

extern int extRperiod = 48;
extern int extDraw4HowLong = 500;

//----- variables
int    c;
int    i;
int    length;
double lengthvar;
int    loopbegin;
int    pos;
double sum;
double tmp;
int    width;

double wtp; //previous value
double wt;  //current value


//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {

   SetIndexBuffer(0,ExtMapBuffer1);   //Yellow
   SetIndexStyle(0, DRAW_LINE, STYLE_SOLID, 2);

   SetIndexBuffer(1,ExtMapBuffer2);  //Green
   SetIndexStyle(1, DRAW_LINE, STYLE_SOLID, 2);

   SetIndexBuffer(2,ExtMapBuffer3);  //Red
   SetIndexStyle(2, DRAW_LINE, STYLE_SOLID, 2);


   // 233 up arrow
   // 234 down arrow
   // 159 big dot
   // 168 open square
   // 120 box with X
   SetIndexStyle(3,DRAW_ARROW);
   SetIndexBuffer(3, XBuffer);     //White
   SetIndexArrow(3,159);

   return(0);
  }

//+------------------------------------------------------------------+
//| Custor indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
   int i;
   
   for( i=0; i<Bars; i++ ) ExtMapBuffer1[i]=0;
   for( i=0; i<Bars; i++ ) ExtMapBuffer2[i]=0;
   for( i=0; i<Bars; i++ ) ExtMapBuffer3[i]=0;
   for( i=0; i<Bars; i++ ) XBuffer[i]=0;

   return(0);
  }


int start()
  {   

   bool i_am_red=false;
   bool i_am_green=false;
   bool i_am_yellow=false;
      
   int redcount=0;
   int greencount=0;
   int yellowcount=0;
   
   double p=Point;
   
   length = extRperiod;
   loopbegin = extDraw4HowLong - length - 1;
 
   for(pos = loopbegin; pos >= 0; pos--)
     { 
      sum = 0;
      for(i = length; i >= 1  ; i--)
        {
         lengthvar = length + 1;
         lengthvar /= 3;
         tmp = 0;
         tmp = ( i - lengthvar)*Close[length-i+pos];
         sum+=tmp;
        }
         
      wtp=wt;
      wt = sum*6/(length*(length+1));
         
      ExtMapBuffer1[pos] = wt;   //yellow
      ExtMapBuffer2[pos] = wt;   //green
      ExtMapBuffer3[pos] = wt;   //red 
       
      i_am_red=false;
      i_am_green=false;
      
      if (wtp > wt)
        {
         //ExtMapBuffer2[pos+1] = EMPTY_VALUE; //remove GREEN
         ExtMapBuffer2[pos+1] = EMPTY_VALUE; //remove GREEN
         i_am_red=true;
         redcount++;
        }
      else
        {
         //ExtMapBuffer3[pos+1] = EMPTY_VALUE; //remove RED
         ExtMapBuffer3[pos+1] = EMPTY_VALUE; //remove RED
         i_am_green=true;
         greencount++;
        }
      


      if (i_am_yellow) {yellowcount++;}
  
     }

   return(0);
  }
//+------------------------------------------------------------------+