RSIoMA 50cross level

*/
#property copyright "RSIoMA V2 TSI"
#property link      "RSIoMA V2 TSI"

#property indicator_separate_window
#property indicator_minimum 0
#property indicator_maximum 100
#property indicator_buffers 6
#property indicator_color1 Blue
#property indicator_color2 Red
#property indicator_color3 Blue
#property indicator_color4 Magenta
#property indicator_color5 DodgerBlue
#property indicator_color6 BlueViolet

//---- input parameters
extern int RSIOMA          = 14;
extern int RSIOMA_MODE     = MODE_EMA;
extern int RSIOMA_PRICE    = PRICE_CLOSE;

extern int Ma_RSIOMA       = 21,
Ma_RSIOMA_MODE  = MODE_EMA;

extern int BuyTrigger      = 70;
extern int SellTrigger     = 30;

extern color BuyTriggerColor  = Blue;
extern color SellTriggerColor = Red;

extern int MainTrendLong   = 50;
extern int MainTrendShort  = 50;

extern color MainTrendLongColor     = Red;
extern color MainTrendShortColor    = Blue;

input int    TriggerCandle=1;
input bool   EnableNativeAlerts = true;
input bool   EnableSoundAlerts  = true;
input bool   EnableEmailAlerts  = true;
input bool   EnablePushAlerts=true;
input string AlertEmailSubject="";
input string AlertText="";
input string SoundFileName="alert.wav";

datetime LastAlertTime = D'01.01.1970';
int LastAlertDirection = 0;

//---- buffers
double RSIBuffer[];
double PosBuffer[];
double NegBuffer[];

double bdn[],bup[];
double sdn[],sup[];

double marsioma[];
string short_name;
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
   short_name=StringConcatenate("RSIOMA(",RSIOMA,")");
   IndicatorBuffers(8);

   SetIndexBuffer(0,RSIBuffer);
   SetIndexBuffer(2,bup);
   SetIndexBuffer(1,bdn);
   SetIndexBuffer(3,sdn);
   SetIndexBuffer(4,sup);
   SetIndexBuffer(5,marsioma);

   SetIndexStyle(0,DRAW_LINE,STYLE_SOLID,3);
   SetIndexStyle(2,DRAW_HISTOGRAM,STYLE_SOLID,4);
   SetIndexStyle(1,DRAW_HISTOGRAM,STYLE_SOLID,4);
   SetIndexStyle(3,DRAW_HISTOGRAM,STYLE_SOLID,4);
   SetIndexStyle(4,DRAW_HISTOGRAM,STYLE_SOLID,4);
   SetIndexStyle(5,DRAW_LINE,STYLE_SOLID,1);

   SetIndexBuffer(6,PosBuffer);
   SetIndexBuffer(7,NegBuffer);

   IndicatorShortName(short_name);

   SetIndexDrawBegin(0,RSIOMA);
   SetIndexDrawBegin(1,RSIOMA);
   SetIndexDrawBegin(2,RSIOMA);
   SetIndexDrawBegin(3,RSIOMA);
   SetIndexDrawBegin(4,RSIOMA);
   SetIndexDrawBegin(5,RSIOMA);
   SetIndexDrawBegin(6,RSIOMA);
   SetIndexDrawBegin(7,RSIOMA);
//----

   drawLine(BuyTrigger,"BuyTrigger",BuyTriggerColor);
   drawLine(SellTrigger,"SellTrigger",SellTriggerColor);
   drawLine(MainTrendLong,"MainTrendLong",MainTrendLongColor);
   drawLine(MainTrendShort,"MainTrendShort",MainTrendShortColor);

   return(0);
  }
//+------------------------------------------------------------------+
//| Relative Strength Index                                          |
//+------------------------------------------------------------------+
int start()
  {


   int    i,counted_bars=IndicatorCounted();
   double rel,negative,positive;
//----
   if(Bars<=RSIOMA) return(0);
//---- initial zero
   if(counted_bars<1)
      for(i=1;i<=RSIOMA;i++) RSIBuffer[Bars-i]=0.0;
//----
   i=Bars-RSIOMA-1;
   int ma=i;
   if(counted_bars>=RSIOMA) i=Bars-counted_bars-1;
   while(i>=0)
     {
      double sumn=0.0,sump=0.0;
      if(i==Bars-RSIOMA-1)
        {
         int k=Bars-2;
         //---- initial accumulation
         while(k>=i)
           {

            double cma = iMA(Symbol(),0,RSIOMA,0,RSIOMA_MODE,RSIOMA_PRICE,k);
            double pma = iMA(Symbol(),0,RSIOMA,0,RSIOMA_MODE,RSIOMA_PRICE,k+1);

            rel=cma-pma;

            if(rel>0) sump+=rel;
            else      sumn-=rel;
            k--;
           }
         positive=sump/RSIOMA;
         negative=sumn/RSIOMA;
        }
      else
        {
         //---- smoothed moving average
         double ccma = iMA(Symbol(),0,RSIOMA,0,RSIOMA_MODE,RSIOMA_PRICE,i);
         double ppma = iMA(Symbol(),0,RSIOMA,0,RSIOMA_MODE,RSIOMA_PRICE,i+1);

         rel=ccma-ppma;

         if(rel>0) sump=rel;
         else      sumn=-rel;
         positive=(PosBuffer[i+1]*(RSIOMA-1)+sump)/RSIOMA;
         negative=(NegBuffer[i+1]*(RSIOMA-1)+sumn)/RSIOMA;
        }
      PosBuffer[i]=positive;
      NegBuffer[i]=negative;
      if(negative==0.0) RSIBuffer[i]=0.0;
      else
        {
         RSIBuffer[i]=100.0-100.0/(1+positive/negative);

         bdn[i] = 0;
         bup[i] = 0;
         sdn[i] = 0;
         sup[i] = 0;

         if(RSIBuffer[i]>MainTrendLong)
            bup[i]=-10;

         if(RSIBuffer[i]<MainTrendShort)
            bdn[i]=-10;

         if(RSIBuffer[i]<20 && RSIBuffer[i]>RSIBuffer[i+1])
            sup[i]=-10;

         if(RSIBuffer[i]>80 && RSIBuffer[i]<RSIBuffer[i+1])
            sdn[i]=-10;

        }
      i--;
     }

   while(ma>=0)
     {
      marsioma[ma]=iMAOnArray(RSIBuffer,0,Ma_RSIOMA,0,Ma_RSIOMA_MODE,ma);
      ma--;
     }

   if(((TriggerCandle>50) && (Time[0]>LastAlertTime)) || (TriggerCandle==50))
     {
      string Text;
      // Above Zero Alert
      if(((RSIBuffer[TriggerCandle]>50) && (RSIBuffer[TriggerCandle+1]<=50)) && ((TriggerCandle>50) || ((TriggerCandle==50) && (LastAlertDirection!=1))))
        {
         Text=AlertText+"RSIBuffer: "+Symbol()+" - "+EnumToString((ENUM_TIMEFRAMES)Period())+" - Above Zero.";
         if(EnableNativeAlerts) Alert(Text);
         if(EnableEmailAlerts) SendMail(AlertEmailSubject+"RSIBuffer Alert",Text);
         if(EnableSoundAlerts) PlaySound(SoundFileName);
         if(EnablePushAlerts) SendNotification(Text);
         LastAlertTime=Time[0];
         LastAlertDirection=1;
        }
      // Below Zero Alert
      if(((RSIBuffer[TriggerCandle]<50) && (RSIBuffer[TriggerCandle+1]>=50)) && ((TriggerCandle>50) || ((TriggerCandle==50) && (LastAlertDirection!=-1))))
        {
         Text=AlertText+"RSIBuffer: "+Symbol()+" - "+EnumToString((ENUM_TIMEFRAMES)Period())+" - Below Zero.";
         if(EnableNativeAlerts) Alert(Text);
         if(EnableEmailAlerts) SendMail(AlertEmailSubject+"RSIBuffer Alert",Text);
         if(EnableSoundAlerts) PlaySound(SoundFileName);
         if(EnablePushAlerts) SendNotification(Text);
         LastAlertTime=Time[0];
         LastAlertDirection=-1;
        }
     }

   return(0);
  }
//+------------------------------------------------------------------+
void drawLine(double lvl,string name,color Col)
  {

   ObjectDelete(name);
   ObjectCreate(name,OBJ_HLINE,WindowFind(short_name),Time[0],lvl,Time[0],lvl);

   ObjectSet(name,OBJPROP_STYLE,STYLE_DOT);

   ObjectSet(name,OBJPROP_COLOR,Col);
   ObjectSet(name,OBJPROP_WIDTH,1);

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