//+------------------------------------------------------------------+
//|                                       Stochastic_Cross_Alert.mq4 |
//|                                    Copyright © 2006, Robert Hill |
//|                                                                  |
//| Written Robert Hill for use with AIME for the stochastic cross   |
//| to draw arrows and popup alert or send email                     |
//| Modified by Linuxser to display in a separate windows            |
//|                                       http://www.linuxser.com.ar |     
//+------------------------------------------------------------------+
#property copyright "Copyright © 2006, Robert Hill"
//----
#property indicator_chart_window
#property indicator_buffers 2
#property indicator_color1 LawnGreen
#property indicator_color2 Red
#property indicator_width1  1
#property indicator_width2  1
//----
extern bool SoundON=false;
extern bool EmailON=false;
//---- input parameters
extern int KPeriod=5;
extern int DPeriod=3;
extern int Slowing=3;
extern int MA_Method=0; // SMA 0, EMA 1, SMMA 2, LWMA 3
extern int PriceField=0; // Low/High 0, Close/Close 1
extern int OverBoughtLevel  =80;
extern int OverSoldLevel    =20;
extern bool show_KD_cross=false;
extern bool show_K_OBOScross=true;
extern bool show_D_OBOScross=false;
extern string note_Price="PriceField:  Low/High = 0, Close/Close = 1";
extern string _MA_Method="SMA0 EMA1 SMMA2 LWMA3";
double CrossUp[];
double CrossDown[];
int flagval1=0;
int flagval2=0;
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
//---- indicators
   SetIndexStyle(0, DRAW_ARROW, EMPTY);
   SetIndexArrow(0, 233);
   SetIndexBuffer(0, CrossUp);
   SetIndexStyle(1, DRAW_ARROW, EMPTY);
   SetIndexArrow(1, 234);
   SetIndexBuffer(1, CrossDown);
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
//---- 
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
  int start() 
  {
   int limit, i, counter;
   double tmp=0;
   double fastMAnow, slowMAnow, fastMAprevious, slowMAprevious;
   double Range, AvgRange;
   int counted_bars = IndicatorCounted();
   if(counted_bars < 0)  return(-1);
   if(counted_bars > 0)   counted_bars--;
   limit = Bars - counted_bars;
   if(counted_bars==0) limit-=1+9;
   
     for(i=1; i<=limit; i++) 
     {
      counter=i;
      Range=0;
      AvgRange=0;
      for(counter=i ;counter<=i+9;counter++)
        {
         //       AvgRange=AvgRange+MathAbs(iStochastic(NULL, 0, KPeriod, DPeriod, Slowing,MA_Method, PriceField, MODE_MAIN, i)-iStochastic(NULL, 0, KPeriod, DPeriod, Slowing,MA_Method, PriceField, MODE_MAIN, i+1));
         AvgRange=AvgRange+MathAbs(High[counter]-Low[counter]);
        }
      Range=AvgRange/10;
      fastMAnow=iStochastic(NULL, 0, KPeriod, DPeriod, Slowing,MA_Method, PriceField, MODE_MAIN, i);
      fastMAprevious=iStochastic(NULL, 0, KPeriod, DPeriod, Slowing,MA_Method, PriceField, MODE_MAIN, i+1);
      slowMAnow=iStochastic(NULL, 0, KPeriod, DPeriod, Slowing,MA_Method, PriceField, MODE_SIGNAL, i);
      slowMAprevious=iStochastic(NULL, 0, KPeriod, DPeriod, Slowing,MA_Method, PriceField, MODE_SIGNAL, i+1);
      CrossUp[i]=EMPTY_VALUE;
      CrossDown[i]=EMPTY_VALUE;
      if
         (((show_KD_cross)&&(fastMAnow > slowMAnow) && (fastMAprevious < slowMAprevious))||
            ((show_K_OBOScross)&&(fastMAnow > OverSoldLevel) && (fastMAprevious < OverSoldLevel))||
            ((show_D_OBOScross)&&(slowMAnow > OverSoldLevel) && (slowMAprevious < OverSoldLevel)) )
        {
         if (i==1 && flagval1==0)
           {
            flagval1=1;
            flagval2=0;
            if (SoundON) Alert("BUY signal at Ask=",Ask,"\n Bid=",Bid,"\n Time=",TimeToStr(CurTime(),TIME_DATE)," ",TimeHour(CurTime()),":",TimeMinute(CurTime()),"\n Symbol=",Symbol()," Period=",Period());
            if (EmailON) SendMail("BUY signal alert","BUY signal at Ask="+DoubleToStr(Ask,4)+", Bid="+DoubleToStr(Bid,4)+", Date="+TimeToStr(CurTime(),TIME_DATE)+" "+TimeHour(CurTime())+":"+TimeMinute(CurTime())+" Symbol="+Symbol()+" Period="+Period());
           }
         CrossUp[i]=Low[i] - Range*0.5;
         //         CrossUp[i] = AvgRange;
         CrossDown[i]=EMPTY_VALUE;
        }
      else if
            (((show_KD_cross)&&(fastMAnow < slowMAnow) && (fastMAprevious > slowMAprevious))||
               ((show_K_OBOScross)&&(fastMAnow < OverBoughtLevel) && (fastMAprevious > OverBoughtLevel))||
               ((show_D_OBOScross)&&(slowMAnow < OverBoughtLevel) && (slowMAprevious > OverBoughtLevel)) )
           {
            if (i==1 && flagval2==0)
              {
               flagval2=1;
               flagval1=0;
               if (SoundON) Alert("SELL signal at Ask=",Ask,"\n Bid=",Bid,"\n Date=",TimeToStr(CurTime(),TIME_DATE)," ",TimeHour(CurTime()),":",TimeMinute(CurTime()),"\n Symbol=",Symbol()," Period=",Period());
               if (EmailON) SendMail("SELL signal alert","SELL signal at Ask="+DoubleToStr(Ask,4)+", Bid="+DoubleToStr(Bid,4)+", Date="+TimeToStr(CurTime(),TIME_DATE)+" "+TimeHour(CurTime())+":"+TimeMinute(CurTime())+" Symbol="+Symbol()+" Period="+Period());
              }
            CrossDown[i]=High[i] + Range*0.5;
            //        CrossDown[i] = AvgRange;
            CrossUp[i]=EMPTY_VALUE;
           }
     }
//----
   return(0);
  }
//+------------------------------------------------------------------+