Combine Osma and MA for a custom indicator

[Forex Trader]

I've been trying to turn the osma indicator into an ma indicator by turning the histogram into an ma line, and then also adding the option of making the osma-ma line sma, ema, smma,or lwma but my coding knowledge/experience is not enough. I've relized that it would have to be a separate window and I've been able to do besides that is get the osma to plot as a line, I've also gotten the code to when calculating the ma to look at the product of the osma code instead of Close[], and I replaced all the MA_period from the MA indicator with SignalSMA from the Osma indicator...but thats as far as I can get and it's plotting nothing. Can some one please help me? thanks a million.

#property indicator_separate_window
#property indicator_buffers 1
#property indicator_color1 Blue
#property  indicator_width1  2
//---- indicator parameters
extern int FastEMA=12;
extern int SlowEMA=26;
extern int SignalSMA=9;
extern int MA_Shift=0;
extern int MA_Method=0;
//---- indicator buffers
double ExtMapBuffer[];
//----
int ExtCountedBars=0;
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
   int    draw_begin;
   string short_name;
//---- drawing settings
   SetIndexStyle(0,DRAW_LINE);
   SetIndexShift(0,MA_Shift);
   IndicatorDigits(MarketInfo(Symbol(),MODE_DIGITS));
   if(SignalSMA<2) SignalSMA=13;
   draw_begin=SignalSMA-1;
//---- indicator short name
   switch(MA_Method)
     {
      case 1 : short_name="EMA(";  draw_begin=0; break;
      case 2 : short_name="SMMA("; break;
      case 3 : short_name="LWMA("; break;
      default :
         MA_Method=0;
         short_name="SMA(";
     }
   IndicatorShortName(short_name+SignalSMA+")");
   SetIndexDrawBegin(0,draw_begin);
//---- indicator buffers mapping
   SetIndexBuffer(0,ExtMapBuffer);
//---- initialization done
   return(0);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int start()
  {
  if(Bars<=SignalSMA) return(0);
   ExtCountedBars=IndicatorCounted();
//---- check for possible errors
   if (ExtCountedBars<0) return(-1);
//---- last counted bar will be recounted
   if (ExtCountedBars>0) ExtCountedBars--;
//----
   switch(MA_Method)
     {
      case 0 : sma();  break;
      case 1 : ema();  break;
      case 2 : smma(); break;
      case 3 : lwma();
     }
//---- done
   return(0);
  }
//+------------------------------------------------------------------+
//| Simple Moving Average                                            |
//+------------------------------------------------------------------+
void sma()
  {
   int limit;
   double Macd[],Signal[],Osma[];
   int counted_bars=IndicatorCounted();
//---- last counted bar will be recounted
   if(counted_bars>0) counted_bars--;
   limit=Bars-counted_bars;
//---- macd counted in the 1-st additional buffer
   for(int i=0; i<limit; i++)
      Macd[i]=iMA(NULL,0,FastEMA,0,MODE_EMA,PRICE_CLOSE,i)-iMA(NULL,0,SlowEMA,0,MODE_EMA,PRICE_CLOSE,i);
//---- signal line counted in the 2-nd additional buffer
   for(i=0; i<limit; i++)
      Signal[i]=iMAOnArray(Macd,Bars,SignalSMA,0,MODE_SMA,i);
//---- main loop
   for(i=0; i<limit; i++)
      Osma[i]=Macd[i]-Signal[i];
      
   double sum=0;
   int pos=Bars-ExtCountedBars-1;
//---- initial accumulation
   if(pos<SignalSMA) pos=SignalSMA;
   for(i=1;i<SignalSMA;i++,pos--)
      sum+=Osma[pos];
//---- main calculation loop
   while(pos>=0)
     {
      sum+=Osma[pos];
      ExtMapBuffer[pos]=sum/SignalSMA;
	   sum-=Osma[pos+SignalSMA-1];
 	   pos--;
     }
//---- zero initial bars
   if(ExtCountedBars<1)
      for(i=1;i<SignalSMA;i++) ExtMapBuffer[Bars-i]=0;
  }
//+------------------------------------------------------------------+
//| Exponential Moving Average                                       |
//+------------------------------------------------------------------+
void ema()
  {
   int limit;
   double Macd[],Signal[],Osma[];
   int counted_bars=IndicatorCounted();
//---- last counted bar will be recounted
   if(counted_bars>0) counted_bars--;
   limit=Bars-counted_bars;
//---- macd counted in the 1-st additional buffer
   for(int i=0; i<limit; i++)
      Macd[i]=iMA(NULL,0,FastEMA,0,MODE_EMA,PRICE_CLOSE,i)-iMA(NULL,0,SlowEMA,0,MODE_EMA,PRICE_CLOSE,i);
//---- signal line counted in the 2-nd additional buffer
   for(i=0; i<limit; i++)
      Signal[i]=iMAOnArray(Macd,Bars,SignalSMA,0,MODE_SMA,i);
//---- main loop
   for(i=0; i<limit; i++)
      Osma[i]=Macd[i]-Signal[i];
      
   double pr=2.0/(SignalSMA+1);
   int    pos=Bars-2;
   if(ExtCountedBars>2) pos=Bars-ExtCountedBars-1;
//---- main calculation loop
   while(pos>=0)
     {
      if(pos==Bars-2) ExtMapBuffer[pos+1]=Osma[pos+1];
      ExtMapBuffer[pos]=Osma[pos]*pr+ExtMapBuffer[pos+1]*(1-pr);
 	   pos--;
     }
  }
//+------------------------------------------------------------------+
//| Smoothed Moving Average                                          |
//+------------------------------------------------------------------+
void smma()
  {
   int limit;
   double Macd[],Signal[],Osma[];
   int counted_bars=IndicatorCounted();
//---- last counted bar will be recounted
   if(counted_bars>0) counted_bars--;
   limit=Bars-counted_bars;
//---- macd counted in the 1-st additional buffer
   for(int i=0; i<limit; i++)
      Macd[i]=iMA(NULL,0,FastEMA,0,MODE_EMA,PRICE_CLOSE,i)-iMA(NULL,0,SlowEMA,0,MODE_EMA,PRICE_CLOSE,i);
//---- signal line counted in the 2-nd additional buffer
   for(i=0; i<limit; i++)
      Signal[i]=iMAOnArray(Macd,Bars,SignalSMA,0,MODE_SMA,i);
//---- main loop
   for(i=0; i<limit; i++)
      Osma[i]=Macd[i]-Signal[i];
      
   double sum=0;
   int k,pos=Bars-ExtCountedBars+1;
//---- main calculation loop
   pos=Bars-SignalSMA;
   if(pos>Bars-ExtCountedBars) pos=Bars-ExtCountedBars;
   while(pos>=0)
     {
      if(pos==Bars-SignalSMA)
        {
         //---- initial accumulation
         for(i=0,k=pos;i<SignalSMA;i++,k++)
           {
            sum+=Osma[k];
            //---- zero initial bars
            ExtMapBuffer[k]=0;
           }
        }
      else sum=ExtMapBuffer[pos+1]*(SignalSMA-1)+Osma[pos];
      ExtMapBuffer[pos]=sum/SignalSMA;
 	   pos--;
     }
  }
//+------------------------------------------------------------------+
//| Linear Weighted Moving Average                                   |
//+------------------------------------------------------------------+
void lwma()
  {
   int limit;
   double Macd[],Signal[],Osma[];
   int counted_bars=IndicatorCounted();
//---- last counted bar will be recounted
   if(counted_bars>0) counted_bars--;
   limit=Bars-counted_bars;
//---- macd counted in the 1-st additional buffer
   for(int i=0; i<limit; i++)
      Macd[i]=iMA(NULL,0,FastEMA,0,MODE_EMA,PRICE_CLOSE,i)-iMA(NULL,0,SlowEMA,0,MODE_EMA,PRICE_CLOSE,i);
//---- signal line counted in the 2-nd additional buffer
   for(i=0; i<limit; i++)
      Signal[i]=iMAOnArray(Macd,Bars,SignalSMA,0,MODE_SMA,i);
//---- main loop
   for(i=0; i<limit; i++)
      Osma[i]=Macd[i]-Signal[i];
      
   double sum=0.0,lsum=0.0;
   double price;
   int weight=0,pos=Bars-ExtCountedBars-1;
//---- initial accumulation
   if(pos<SignalSMA) pos=SignalSMA;
   for(i=1;i<=SignalSMA;i++,pos--)
     {
      price=Osma[pos];
      sum+=price*i;
      lsum+=price;
      weight+=i;
     }
//---- main calculation loop
   pos++;
   i=pos+SignalSMA;
   while(pos>=0)
     {
      ExtMapBuffer[pos]=sum/weight;
      if(pos==0) break;
      pos--;
      i--;
      price=Osma[pos];
      sum=sum-lsum+price*SignalSMA;
      lsum-=Osma[i];
      lsum+=price;
     }
//---- zero initial bars
   if(ExtCountedBars<1)
      for(i=1;i<SignalSMA;i++) ExtMapBuffer[Bars-i]=0;
  }
//+------------------------------------------------------------------+