//+------------------------------------------------------------------+ 
//| ZZZ.mq4 | 
//+------------------------------------------------------------------+ 
#property copyright "Istoniz" 
#property link "http://www.kg/" 

#property indicator_chart_window 
#property indicator_buffers 1 
#property indicator_color1 Aqua 
//---- input parameters 
extern int Length=6; 

//---- buffers 
double ExtMapBuffer1[]; 

//+------------------------------------------------------------------+ 
//| Custom indicator initialization function | 
//+------------------------------------------------------------------+ 
int init() 
{ 
//---- indicators 
SetIndexStyle(0,DRAW_SECTION); 
SetIndexBuffer(0,ExtMapBuffer1); 
SetIndexEmptyValue(0,0.0); 


//---- 
return(0); 
} 
//+------------------------------------------------------------------+ 
//| Custor indicator deinitialization function | 
//+------------------------------------------------------------------+ 
int deinit() 
{ 
//---- 

//---- 
return(0); 
} 
//+------------------------------------------------------------------+ 
//| Custom indicator iteration function | 
//+------------------------------------------------------------------+ 
int start() 
{ 
int barn=300; 
/* 
//-------------------------- 
int counted_bars=IndicatorCounted(); 
limit,barn=Bars-Length; 
if (counted_bars<0) return(-1); 
if (counted_bars>0) counted_bars--; 

limit=Bars-counted_bars+4*Length; 
//Comment(" limit = ",limit, " Bars = ",Bars); 
//-------------------------- 
*/ 
//-------------------------- 
int shift,Swing,Swing_n,i,zu,zd,uzl; 
double LL,HH,BH,BL,NH,NL; 

Swing_n=0; Swing=0; uzl=0; 

BH =High[barn]; BL=Low[barn]; 
zu=barn; zd=barn; 

for ( shift=barn; shift>0 ; shift--) 
{ 
LL=10000000; HH=-100000000; 
for ( i=shift+Length; i>shift+1 ; i--) 
{ 
if ( Low[i]<LL ) LL=Low[i]; 
if ( High[i]>HH ) HH=High[i]; 
} 
if ( Low[shift]<LL && High[shift]>HH ) 
{ 
Swing=2; 
if ( Swing_n==1 ) zu=shift+1; 
if ( Swing_n==-1 ) zd=shift+1; 
} else 
{ 
if ( Low[shift]<LL ) Swing=-1; 
if ( High[shift]>HH ) Swing=1; 
} 

if ( Swing!=Swing_n && Swing_n!=0 ) 
{ 
if ( Swing==2 ) 
{ 
Swing=-Swing_n; 
BH=High[shift]; 
BL=Low[shift]; 
} 
uzl=uzl+1; 
if ( Swing==1 ) 
{ 

ExtMapBuffer1[zd]=BL; 
} 
if ( Swing==-1 ) 
{ 

ExtMapBuffer1[zu]=BH; 
} 
BH=High[shift]; 
BL=Low[shift]; 
} 

if ( Swing==1 ) 
{ 
if ( High[shift]>=BH ) 
{ 
BH=High[shift]; 
zu=shift; 
} 
} 
if ( Swing==-1 ) 
{ 
if ( Low[shift]<=BL ) 
{ 
BL=Low[shift]; 
zd=shift; 
} 
} 
Swing_n=Swing; 
} 

//---- 
return(0); 
} 
//+------------------------------------------------------------------+