请各位朋友帮看看如何实现这样的指标

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1、此指标是替换ZIGZAG里的高低点的算法，但代入我求出的高低值并不能实现我的目标。

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2、由于本人水平有限，弄了几天也发现不了问题所在，请各位朋友看看在那里需要修改。

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3、最后未出现新的均线交叉前的线也没想到好算法，也请各位朋友出出主意。

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在此先谢了！！！

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//+------------------------------------------------------------------+
//|                                                     indi_ls2.mq4 |
//|                                                                  |
//|                                                                  |
//+------------------------------------------------------------------+

#property indicator_chart_window
#property indicator_buffers 1
#property indicator_color1 Blue       //指标显示颜色
#property indicator_width1 3       
//---- indicator parameters
extern int ExtDepth=12;
extern int ExtDeviation=5;
extern int ExtBackstep=3;
//---- indicator buffers
double ZigzagBuffer[];
double HighMapBuffer[];
double LowMapBuffer[];
int level=3; // recounting's depth 
bool downloadhistory=false;
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
   IndicatorBuffers(3);
//---- drawing settings
   SetIndexStyle(0,DRAW_SECTION);
//---- indicator buffers mapping
   SetIndexBuffer(0,ZigzagBuffer);
   SetIndexBuffer(1,HighMapBuffer);
   SetIndexBuffer(2,LowMapBuffer);
   SetIndexEmptyValue(0,0.0);

//---- indicator short name
   IndicatorShortName("ZigZag("+ExtDepth+","+ExtDeviation+","+ExtBackstep+")");
//---- initialization done
   return(0);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int start()
  {
   int i, counted_bars = IndicatorCounted();
   int limit,counterZ,whatlookfor;
   int shift,back,lasthighpos,lastlowpos;
   double val,res;
   double curlow,curhigh,lasthigh,lastlow;

   if (counted_bars==0 && downloadhistory) // history was downloaded
     {
      ArrayInitialize(ZigzagBuffer,0.0);
      ArrayInitialize(HighMapBuffer,0.0);
      ArrayInitialize(LowMapBuffer,0.0);
     }
   if (counted_bars==0) 
     {
      limit=Bars-ExtDepth;
      downloadhistory=true;
     }
   if (counted_bars>0) 
     {
      while (counterZ<level && i<100)
        {
         res=ZigzagBuffer[i];
         if (res!=0) counterZ++;
         i++;
        }
      i--;
      limit=i;
      if (LowMapBuffer[i]!=0) 
        {
         curlow=LowMapBuffer[i];
         whatlookfor=1;
        }
      else
        {
         curhigh=HighMapBuffer[i];
         whatlookfor=-1;
        }
      for (i=limit-1;i>=0;i--)  
        {
         ZigzagBuffer[i]=0.0;  
         LowMapBuffer[i]=0.0;
         HighMapBuffer[i]=0.0;
        }
     }
      
   for(shift=limit; shift>=0; shift--)
     {
      val=Low[Lp(shift)];        //替换原[iLowest(NULL,0,MODE_LOW,ExtDepth,shift)]
      if(val==lastlow) val=0.0;
      else 
        { 
         lastlow=val; 
         if((Low[shift]-val)>(ExtDeviation*Point)) val=0.0;
         else
           {
            for(back=1; back<=ExtBackstep; back++)
              {
               res=LowMapBuffer[shift+back];
               if((res!=0)&&(res>val)) LowMapBuffer[shift+back]=0.0; 
              }
           }
        } 
      if (Low[shift]==val) LowMapBuffer[shift]=val; else LowMapBuffer[shift]=0.0;
      //--- high
      val=High[Hp(shift)];       //替换原[iHighest(NULL,0,MODE_HIGH,ExtDepth,shift)]
      if(val==lasthigh) val=0.0;
      else 
        {
         lasthigh=val;
         if((val-High[shift])>(ExtDeviation*Point)) val=0.0;
         else
           {
            for(back=1; back<=ExtBackstep; back++)
              {
               res=HighMapBuffer[shift+back];
               if((res!=0)&&(res<val)) HighMapBuffer[shift+back]=0.0; 
              } 
           }
        }
      if (High[shift]==val) HighMapBuffer[shift]=val; else HighMapBuffer[shift]=0.0;
     }

   // final cutting 
   if (whatlookfor==0)
     {
      lastlow=0;
      lasthigh=0;  
     }
   else
     {
      lastlow=curlow;
      lasthigh=curhigh;
     }
   for (shift=limit;shift>=0;shift--)
     {
      res=0.0;
      switch(whatlookfor)
        {
         case 0: // look for peak or lawn 
            if (lastlow==0 && lasthigh==0)
              {
               if (HighMapBuffer[shift]!=0)
                 {
                  lasthigh=High[shift];
                  lasthighpos=shift;
                  whatlookfor=-1;
                  ZigzagBuffer[shift]=lasthigh;
                  res=1;
                 }
               if (LowMapBuffer[shift]!=0)
                 {
                  lastlow=Low[shift];
                  lastlowpos=shift;
                  whatlookfor=1;
                  ZigzagBuffer[shift]=lastlow;
                  res=1;
                 }
              }
             break;  
         case 1: // look for peak
            if (LowMapBuffer[shift]!=0.0 && LowMapBuffer[shift]<lastlow && HighMapBuffer[shift]==0.0)
              {
               ZigzagBuffer[lastlowpos]=0.0;
               lastlowpos=shift;
               lastlow=LowMapBuffer[shift];
               ZigzagBuffer[shift]=lastlow;
               res=1;
              }
            if (HighMapBuffer[shift]!=0.0 && LowMapBuffer[shift]==0.0)
              {
               lasthigh=HighMapBuffer[shift];
               lasthighpos=shift;
               ZigzagBuffer[shift]=lasthigh;
               whatlookfor=-1;
               res=1;
              }   
            break;               
         case -1: // look for lawn
            if (HighMapBuffer[shift]!=0.0 && HighMapBuffer[shift]>lasthigh && LowMapBuffer[shift]==0.0)
              {
               ZigzagBuffer[lasthighpos]=0.0;
               lasthighpos=shift;
               lasthigh=HighMapBuffer[shift];
               ZigzagBuffer[shift]=lasthigh;
              }
            if (LowMapBuffer[shift]!=0.0 && HighMapBuffer[shift]==0.0)
              {
               lastlow=LowMapBuffer[shift];
               lastlowpos=shift;
               ZigzagBuffer[shift]=lastlow;
               whatlookfor=1;
              }   
            break;               
         default: return; 
        }
     }

   return(0);
  }
//+------------------------------------------------------------------+
int Hp(int i)
{
   double MaS_curr, MaS_prev, MaB_curr, MaB_prev;
   int j,k;
   MaS_curr=iMA(NULL,0,21,0,MODE_SMA,PRICE_CLOSE,i);
   MaS_prev=iMA(NULL,0,21,0,MODE_SMA,PRICE_CLOSE,i+1);
   MaB_curr=iMA(NULL,0,55,0,MODE_SMA,PRICE_CLOSE,i);
   MaB_prev=iMA(NULL,0,55,0,MODE_SMA,PRICE_CLOSE,i+1);
   if(MaB_curr<=MaS_curr && MaB_prev>MaS_prev) 
   {
      j=i+1;
      while(j<500)
      {
         MaS_curr=iMA(NULL,0,21,0,MODE_SMA,PRICE_CLOSE,j);
         MaS_prev=iMA(NULL,0,21,0,MODE_SMA,PRICE_CLOSE,j+1);
         MaB_curr=iMA(NULL,0,55,0,MODE_SMA,PRICE_CLOSE,j);
         MaB_prev=iMA(NULL,0,55,0,MODE_SMA,PRICE_CLOSE,j+1);
         //Comment(i," ",DoubleToStr(Signal_curr,4),"\n");
         if(MaB_curr>=MaS_curr && MaB_prev<MaS_prev)
         {
            double HH[0];
            ArrayResize(HH,j-i);
            for(k=0;k<j-i;k++)
               HH[k]=High[k];
            int Hpoint=ArrayMaximum(HH,j-i,1);         //高点位置

            break;
         }
         j++;
      }
   }
      return(Hpoint);
}
//+------------------------------------------------------------------+
int Lp(int i)
{
   double MaS_curr, MaS_prev, MaB_curr, MaB_prev;
   int j,k;
   MaS_curr=iMA(NULL,0,21,0,MODE_SMA,PRICE_CLOSE,i);
   MaS_prev=iMA(NULL,0,21,0,MODE_SMA,PRICE_CLOSE,i+1);
   MaB_curr=iMA(NULL,0,55,0,MODE_SMA,PRICE_CLOSE,i);
   MaB_prev=iMA(NULL,0,55,0,MODE_SMA,PRICE_CLOSE,i+1);
   if(MaB_curr>=MaS_curr && MaB_prev<MaS_prev)
   {
      j=i+1;
      while(j<500)
      {
         MaS_curr=iMA(NULL,0,21,0,MODE_SMA,PRICE_CLOSE,j);
         MaS_prev=iMA(NULL,0,21,0,MODE_SMA,PRICE_CLOSE,j+1);
         MaB_curr=iMA(NULL,0,55,0,MODE_SMA,PRICE_CLOSE,j);
         MaB_prev=iMA(NULL,0,55,0,MODE_SMA,PRICE_CLOSE,j+1);

         if(MaB_curr<=MaS_curr && MaB_prev>MaS_prev)
         {
            double LL[0];
            ArrayResize(LL,j-i);
            for(k=0;k<j-i;k++)
               LL[k]=Low[k];
   
            int Lpoint=ArrayMinimum(LL,j-i,1);         //低点位置

            break;
         }
         j++;
      }
   }
      return(Lpoint);
}
附加的文件：
indi_ls2.mq4  9 kb
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