Trend Trader EA with hedging and price trailing capabilities

Particular features:

1. establish the trend using a nonlagma (below is the mt4 code for this indi, but I want this algorithm to be inserted in the EA, I don't want the EA to call the indicator)angle and price relationship with it (Trend = disabled OR price OR angle OR both; Example: price above MA => uptrend OR MA rises => uptrend OR MA rises and price above it => uptrend) - have this MA drawn on the chart
2. enter a trade based on the (same algorithm) nonlagma indicator  - have this signal MA drawn on the chart, or some arrow when trade signal occurs
3. confirm the entry if the price is at a minimum distance away from the latest HH or LL (depending whether the EA buys or - need to set the number of pips from the EA's settings - have the HH or LL (ie swing) drawn on the chart, for example a horizontal line, just like a price level
4. trail the price using a moving average, ATR, psar, chandelier, pips, fractals (need to be able to select one of this from a drop-down, and have the settings for each to customize) - have the trailing signal drawn on the chart
5. when the trend changes and there is an opposite trade signal, I want the EA to be able to (if set to do so):

#property copyright ""
#property link      ""
#property description ""
#property strict
#property indicator_chart_window
#property indicator_buffers 3
#property indicator_color1 Gold
#property indicator_width1 2
#property indicator_color2 Teal
#property indicator_width2 2
#property indicator_color3 Crimson
#property indicator_width3 2
input ENUM_APPLIED_PRICE  Price=0;
extern int     Length         = 15;  //Period of NonLagMA
extern int     Displace       = 0;  //DispLace or Shift 
extern double  PctFilter      = 0;  //Dynamic filter in decimal
extern int     Color          = 1;  //Switch of Color mode (1-color)  
extern int     ColorBarBack   = 1;  //Bar back for color mode
extern double  Deviation      = 0;  //Up/down deviation        
extern int     AlertMode      = 0;  //Sound Alert switch (0-off,1-on) 
extern int     WarningMode    = 0;  //Sound Warning switch(0-off,1-on) 
double MABuffer[];
double UpBuffer[];
double DnBuffer[];
double trend[];
double Del[];
double AvgDel[];
double alfa[];
int i, Phase, Len,Cycle=4;
double Coeff, beta, t, Sum, Weight, g;
double pi = 3.1415926535;    
bool   UpTrendAlert=false, DownTrendAlert=false;
 int OnInit()
  {
   IndicatorBuffers(6);
   SetIndexStyle(0,DRAW_LINE);
   SetIndexBuffer(0,MABuffer);
   SetIndexStyle(1,DRAW_LINE);
   SetIndexBuffer(1,UpBuffer);
   SetIndexStyle(2,DRAW_LINE);
   SetIndexBuffer(2,DnBuffer);
   SetIndexBuffer(3,trend);
   SetIndexBuffer(4,Del);
   SetIndexBuffer(5,AvgDel); 
   string short_name;
   IndicatorDigits(int(MarketInfo(Symbol(),MODE_DIGITS)));
   short_name="NonLagMA ("+IntegerToString(Length)+")";
   IndicatorShortName(short_name);
   SetIndexLabel(0,"Level");
   SetIndexLabel(1,"Up");
   SetIndexLabel(2,"Dn");
   SetIndexShift(0,Displace);
   SetIndexShift(1,Displace);
   SetIndexShift(2,Displace);
   SetIndexEmptyValue(0,EMPTY_VALUE);
   SetIndexEmptyValue(1,EMPTY_VALUE);
   SetIndexEmptyValue(2,EMPTY_VALUE);
   SetIndexDrawBegin(0,Length*Cycle+Length+1);
   SetIndexDrawBegin(1,Length*Cycle+Length+1);
   SetIndexDrawBegin(2,Length*Cycle+Length+1);
   Coeff =  3*pi;
   Phase = Length-1;
   Len = Length*4 + Phase;  
   ArrayResize(alfa,Len);
   Weight=0;    
      for (i=0;i<Len-1;i++)
      {
      if (i<=Phase-1) t = 1.0*i/(Phase-1);
      else t = 1.0 + (i-Phase+1)*(2.0*Cycle-1.0)/(Cycle*Length-1.0); 
      beta = MathCos(pi*t);
      g = 1.0/(Coeff*t+1);   
      if (t <= 0.5 ) g = 1;
      alfa[i] = g * beta;
      Weight += alfa[i];
      }
  return(INIT_SUCCEEDED);
  }
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  shift=0, counted_bars=IndicatorCounted(),limit=0;
   double price=0, Filter=0;      
   if ( counted_bars > 0 )  limit=Bars-counted_bars;
   if ( counted_bars < 0 )  return(0);
   if ( counted_bars ==0 )  limit=Bars-Len-1; 
   if ( counted_bars < 1 ) 
   for(i=1;i<Length*Cycle+Length;i++) 
   {
   MABuffer[Bars-i]=0;    
   UpBuffer[Bars-i]=0;  
   DnBuffer[Bars-i]=0;  
   }
   for(shift=limit;shift>=0;shift--) 
   {    
      Sum = 0;
      for (i=0;i<=Len-1;i++)
           { 
      price = iMA(NULL,0,1,0,3,Price,i+shift);      
      Sum += alfa[i]*price;
      }
        if (Weight > 0) MABuffer[shift] = (1.0+Deviation/100)*Sum/Weight;
      if (PctFilter>0)
      {
      Del[shift] = MathAbs(MABuffer[shift] - MABuffer[shift+1]);
      double sumdel=0;
      for (i=0;i<=Length-1;i++) sumdel = sumdel+Del[shift+i];
      AvgDel[shift] = sumdel/Length;
      double sumpow = 0;
      for (i=0;i<=Length-1;i++) sumpow+=MathPow(Del[shift+i]-AvgDel[shift+i],2);
      double StdDev = MathSqrt(sumpow/Length); 
      Filter = PctFilter * StdDev;
      if(MathAbs(MABuffer[shift]-MABuffer[shift+1]) < Filter) MABuffer[shift]=MABuffer[shift+1];
      }
      else
      Filter=0;
      if (Color>0)
      {
      trend[shift]=trend[shift+1];
      if (MABuffer[shift]-MABuffer[shift+1] > Filter) trend[shift]= 1; 
      if (MABuffer[shift+1]-MABuffer[shift] > Filter) trend[shift]=-1; 
         if (trend[shift]>0)
         {  
         UpBuffer[shift] = MABuffer[shift];
         if (trend[shift+ColorBarBack]<0) UpBuffer[shift+ColorBarBack]=MABuffer[shift+ColorBarBack];
         DnBuffer[shift] = EMPTY_VALUE;
         if (WarningMode>0 && trend[shift+1]<0 && shift==0) PlaySound("alert2.wav");
         }
         if (trend[shift]<0) 
         {
         DnBuffer[shift] = MABuffer[shift];
         if (trend[shift+ColorBarBack]>0) DnBuffer[shift+ColorBarBack]=MABuffer[shift+ColorBarBack];
         UpBuffer[shift] = EMPTY_VALUE;
         if (WarningMode>0 && trend[shift+1]>0 && shift==0) PlaySound("alert2.wav");
         }
      }
   }   
   string Message;
   if (trend[2]<0 && trend[1]>0 && Volume[0]>1 && !UpTrendAlert)
        {
        Message = " NonLagMA "+Symbol()+" M"+IntegerToString(Period())+": changed to uptrend";
        if ( AlertMode>0 ) Alert (Message); 
        UpTrendAlert=true; DownTrendAlert=false;
        } 
        if ( trend[2]>0 && trend[1]<0 && Volume[0]>1 && !DownTrendAlert)
        {
        Message = " NonLagMA "+Symbol()+" M"+IntegerToString(Period())+": changed to downtrend";
        if ( AlertMode>0 ) Alert (Message); 
        DownTrendAlert=true; UpTrendAlert=false;
        }                
        return(rates_total);
}