//+------------------------------------------------------------------+
//|                                                   IgrunAlert.mq4 |
//|                                              Copyright 2019, AM2 |
//|                                      http://www.forexsystems.biz |
//+------------------------------------------------------------------+
#property copyright "Copyright 2019, AM2"
#property link      "http://www.forexsystems.biz"
#property version   "1.00"
#property strict
#property indicator_chart_window

input int bars=111;
input int kper=5;
input int dper=3;
input int slow=3;

int cross[];
datetime t=0;
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int OnInit()
  {
//--- indicator buffers mapping
   ArrayResize(cross,bars,1);
//---
   return(INIT_SUCCEEDED);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int OnCalculate(const int rates_total,
                const int prev_calculated,
                const datetime &time[],
                const double &open[],
                const double &high[],
                const double &low[],
                const double &close[],
                const long &tick_volume[],
                const long &volume[],
                const int &spread[])
  {
//---
   int count=0, d1=0, d2=0, d3=0, k=0;

   for(int i=0; i<bars; i++)
     {
      double sto1=iStochastic(NULL,0,kper,dper,slow,0,0,MODE_MAIN,i);
      double sto2=iStochastic(NULL,0,kper,dper,slow,0,0,MODE_MAIN,i+1);

      if((sto1>50 && sto2<50) || (sto1<50 && sto2>50))
        {
         count++;
         cross[k]=i;
         k++;
        }
     }

   d1=cross[1]-cross[0];
   d2=cross[2]-cross[1];
   d3=cross[3]-cross[2];


   if(d1>d2 && d2>d3 && t!=time[0])
     {
      Alert("Свершилось!!!");
      t=time[0];
     }

   Comment("\n I1: ",cross[0],
           "\n I2: ",cross[1],
           "\n I3: ",cross[2],
           "\n I4: ",cross[3],
           "\n ",
           "\n D1: ",d1,
           "\n D2: ",d2,
           "\n D3: ",d3,
           "\n ",
           "\n Count: ",count);

//--- return value of prev_calculated for next call
   return(rates_total);
  }
//+------------------------------------------------------------------+

//+------------------------------------------------------------------+