//+------------------------------------------------------------------+
//|                                                       Discipline |
//|                 Copyright © 1999-2008, MetaQuotes Software Corp. |
//|                                                         FX_FISH  |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2005, Kiko Segui"
#property link      "webtecnic@terra.es"
//----
#property indicator_separate_window
#property indicator_buffers 2
#property indicator_color1 Lime
#property indicator_color2 Red
//----
double buffer1[];
double buffer2[];
//----
extern int period=10;
extern int price=0; // 0 or other = (H+L)/2
                    // 1 = Open
                    // 2 = Close
                    // 3 = High
                    // 4 = Low
                    // 5 = (H+L+C)/3
                    // 6 = (O+C+H+L)/4
                    // 7 = (O+C)/2
extern bool Mode_Fast=false;
extern bool Signals  =true;
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int init()
  {
   SetIndexStyle(0,DRAW_HISTOGRAM,STYLE_SOLID,2,Lime);
   SetIndexBuffer(0,buffer1);
   SetIndexStyle(1,DRAW_HISTOGRAM,STYLE_SOLID,2,Red);
   SetIndexBuffer(1,buffer2);
   return(0);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int deinit()
  {
   int i;
   double tmp;
//----
   for(i=0;i<Bars;i++)
     {
      ObjectDelete("Sel"+DoubleToStr(i,0));
      ObjectDelete("Buy"+DoubleToStr(i,0));
      ObjectDelete("Exit"+DoubleToStr(i,0));
     }
   return(0);
  }
double Value=0,Value1=0,Value2=0,Fish=0,Fish1=0,Fish2=0;
int buy=0,sell=0;
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int start()
  {
   int i;
   double _price;
   double tmp;
   double MinL=0;
   double MaxH=0;
   double Threshold=1.2;
//----
   int counted_bars = IndicatorCounted();
   if(counted_bars < 0)  return(-1);
   if(counted_bars > 0)   counted_bars--;
   i = Bars - counted_bars;
   if(counted_bars==0) i-=1+period;
      
   while(i>=0)
     {
      MaxH=High[Highest(NULL,0,MODE_HIGH,period,i)];
      MinL= Low[ Lowest(NULL,0,MODE_LOW, period,i)];
      switch(price)
        {
         case 0:  _price=(High[i]+Low[i])/2;                   break;
         case 1:  _price= Open[i];                             break;
         case 2:  _price= Close[i];                            break;
         case 3:  _price= High[i];                             break;
         case 4:  _price= Low[i];                              break;
         case 5:  _price=(High[i]+Low[i]+Close[i])/3;          break;
         case 6:  _price=(Open[i]+High[i]+Low[i]+Close[i])/4;  break;
         case 7:  _price=(Open[i]+Close[i])/2;                 break;
         default: _price=(High[i]+Low[i])/2;                   break;
        }
      Value=0.33*2*((_price-MinL)/(MaxH-MinL)-0.5) + 0.67*Value1;
      Value=MathMin(MathMax(Value,-0.999),0.999);
      Fish =0.5*MathLog((1+Value)/(1-Value))+0.5*Fish1;
      buffer1[i]=0;
      buffer2[i]=0;
//----
      if((Fish<0) && (Fish1>0))
        {
         if(Signals)
           {
            ObjectCreate("Exit"+DoubleToStr(i,0),OBJ_ARROW,0,Time[i],_price);
            ObjectSet("Exit"+DoubleToStr(i,0),OBJPROP_ARROWCODE,251);
            ObjectSet("Exit"+DoubleToStr(i,0),OBJPROP_COLOR,Red);
           }
         buy=0;
        }
      if((Fish>0) && (Fish1<0))
        {
         if(Signals)
           {
            ObjectCreate("Exit"+DoubleToStr(i,0),OBJ_ARROW,0,Time[i],_price);
            ObjectSet("Exit"+DoubleToStr(i,0),OBJPROP_ARROWCODE,251);
            ObjectSet("Exit"+DoubleToStr(i,0),OBJPROP_COLOR,Red);
           }
         sell=0;
        }
      if(Fish>=0)
      { buffer1[i]=Fish; }
      else
      { buffer2[i]=Fish; }
      tmp=i;
      if((Fish<-Threshold) && (Fish>Fish1) && (Fish1<=Fish2))
        {
         if (Signals)
           {
            ObjectCreate("Sel"+DoubleToStr(i,0),OBJ_ARROW,0,Time[i],High[i]+5*Point);
            ObjectSet("Sel"+DoubleToStr(i,0),OBJPROP_ARROWCODE,226);
            ObjectSet("Sel"+DoubleToStr(i,0),OBJPROP_COLOR,Red);
           }
         sell=1;
        }
      if((Fish>Threshold) && (Fish<Fish1) && (Fish1>=Fish2))
        {
         if (Signals)
           {
            ObjectCreate("Buy"+DoubleToStr(i,0),OBJ_ARROW,0,Time[i],Low[i]-5*Point);
            ObjectSet("Buy"+DoubleToStr(i,0),OBJPROP_ARROWCODE,225);
            ObjectSet("Buy"+DoubleToStr(i,0),OBJPROP_COLOR,Aqua);
           }
         buy=1;
        }
      Value1=Value;
      Fish2=Fish1;
      Fish1=Fish;
      i--;
     }
   return(0);
  }
//+------------------------------------------------------------------+