xma.mq4

#property indicator_chart_window
#property indicator_buffers 4
#property indicator_color1 Yellow
#property indicator_color2 Blue
#property indicator_color3 Red
#property indicator_color4 Yellow

extern double  porog=1.0;
//---- buffers
double Signal[],up[],dn[],fl[];
//+------------------------------------------------------------------+
void init()
  {
   SetIndexStyle(0,DRAW_LINE);
   SetIndexDrawBegin(0,0);
   SetIndexBuffer(0,Signal);

   SetIndexStyle(1,DRAW_LINE);
   SetIndexDrawBegin(1,0);
   SetIndexBuffer(1,up);

   SetIndexStyle(2,DRAW_LINE);
   SetIndexDrawBegin(2,0);
   SetIndexBuffer(2,dn);

   SetIndexStyle(3,DRAW_LINE);
   SetIndexDrawBegin(3,0);
   SetIndexBuffer(3,fl);

   IndicatorShortName("Xma("+porog+")");
   return;
  }
//+------------------------------------------------------------------+
int start()
  {
   int limit;
   double tmp;
   int counted_bars=IndicatorCounted();
   int i;
   if(counted_bars<0) return(-1);
   if(counted_bars>0) counted_bars--;
   limit=Bars-counted_bars;
   for(i=limit;i>=0;i--)
     {
      if(i==Bars-1) Signal[i]=Close[i+1]; else Signal[i]=Signal[i];
      tmp=0;
      if(Signal[i]>0)
         tmp=(Close[i+1]/Signal[i]-1.0)*1000.0;
      if(MathAbs(tmp)>porog)
        {
         double Znak=1.0; if(tmp<0) Znak=-1.0;
         Signal[i]=Close[i+1]/(1.0+Znak*porog/1000.0);
         if(Signal[i]>Signal[i+1]) up[i]=Signal[i];
         if(Signal[i]