Triggerlines Shift Modified_v2

//+------------------------------------------------------------------+
//|                                  Triggerlines Shift Modified.mq4 |
//|                      Copyright © 2006, MetaQuotes Software Corp. |
//|                                        http://www.metaquotes.net |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2006, MetaQuotes Software Corp."
#property link      "http://www.metaquotes.net"
//---- indicator settings
#property  indicator_chart_window
#property  indicator_buffers 4
#property indicator_color1 Red
#property indicator_color2 Red
#property indicator_color3 Blue
#property indicator_color4 Blue
//---- buffers
double ExtMapBuffer1[];
double ExtMapBuffer2[];
double ExtMapBuffer3[];
double ExtMapBuffer4[];
int width;
//----
extern int Rperiod=20;
extern int RperiodShift=0;
extern int LSMA_Period=20;
extern int LSMA_PeriodShift=0;
//----
int Draw4HowLong;
int shift;
int i;
int j;
int loopbegin;
int length;
int lsma_length;
//----
double lengthvar;
double tmp ;
double tmp2 ;
double wt[];
double sum[];
double lsma_sum[];
double lsma_ma[];
double middle[];
int c;
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
//---- 7 additional buffers are used for counting.
   IndicatorBuffers(7);
//---- drawing settings
   SetIndexBuffer(0,ExtMapBuffer1);
   SetIndexStyle(0,DRAW_LINE,STYLE_SOLID,1);
   SetIndexShift(0,LSMA_PeriodShift);
   SetIndexBuffer(1,ExtMapBuffer2);
   SetIndexStyle(1,DRAW_LINE,STYLE_SOLID,1);
   SetIndexShift(1,LSMA_PeriodShift);
   SetIndexBuffer(2,ExtMapBuffer3);
   SetIndexStyle(2,DRAW_LINE,STYLE_SOLID,1);
   SetIndexShift(2,RperiodShift);
   SetIndexBuffer(3,ExtMapBuffer4);
   SetIndexStyle(3,DRAW_LINE,STYLE_SOLID,1);
   SetIndexShift(3,RperiodShift);
   SetIndexBuffer(4,sum);
   SetIndexBuffer(5,wt);
   SetIndexBuffer(6,lsma_ma);
//---- initialization done
   return(0);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int start()
  {   Draw4HowLong=Bars-Rperiod - 5;                            //Rperiod = 20
   length=Rperiod;                                           //length now = 20  
   lsma_length=LSMA_Period;
   loopbegin=Draw4HowLong - length - 1;
   for(shift=loopbegin; shift>=0; shift--)  //  MAIN For Loop
     {
      sum[1]=0;
      for(i=length; i>=1 ;i--)             //LSMA loop
        {
         lengthvar=length + 1;                               //lengthvar = 21  
         lengthvar/=3;                                       //lengthvar = 7
         tmp=0;
         tmp =(i - lengthvar)*Close[length-i+shift];         //tmp = 20 - 7 * close[20-i+shift]
         sum[1]+=tmp;
        }
      wt[shift]=sum[1]*6/(length*(length+1));
      j=shift;
      lsma_ma[shift]=wt[j+1] + (wt[j]-wt[j+1])* 2/(lsma_length+1);
      //========== COLOR CODING ===========================================                       
      ExtMapBuffer1[shift]=wt[shift];
      ExtMapBuffer2[shift]=lsma_ma[shift];
      ExtMapBuffer3[shift]=wt[shift];
      ExtMapBuffer4[shift]=lsma_ma[shift];
      if (wt[shift]  < lsma_ma[shift])
        {
         ExtMapBuffer4[shift]=EMPTY_VALUE;
         ExtMapBuffer3[shift]=EMPTY_VALUE;
        }
     }
  }
//+------------------------------------------------------------------+