HI codersguru

Thanks a lot FOR YOU
PLEASE CAN YOU EXPLAIN THIS STATMENT AND THE meaning

for(int shift = Bars-10; shift >= 0; shift--)
{
ExtMapBuffer1[shift] = ma[shift];
ExtMapBuffer2[shift] = ma[shift];
//Print (ma[shift]);
if (ma[shift] > ma[shift+1])
{
ExtMapBuffer1[shift] = EMPTY_VALUE;
ExtMapBuffer2[shift+1] = ma[shift+1];

}
else if (ma[shift] < ma[shift+1])
{
ExtMapBuffer2[shift] = EMPTY_VALUE;
ExtMapBuffer1[shift+1] = ma[shift+1];
}


IN THIS EA
//---- indicator settings
#property indicator_chart_window
#property indicator_buffers 2
#property indicator_color1 Lime
#property indicator_color2 Red


//---- buffers
double ExtMapBuffer1[];
double ExtMapBuffer2[],ma[];

extern int MAType = 1;
extern int MAPeriod = 34;
extern int MAShift = 0;
extern int PriceType=0;

//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
//---- 2 additional buffers are used for counting.
IndicatorBuffers(5);

//---- drawing settings
SetIndexBuffer(0,ExtMapBuffer1);
SetIndexBuffer(1,ExtMapBuffer2);
SetIndexBuffer(2,ma);
SetIndexStyle(0,DRAW_LINE,0,2);
SetIndexStyle(1,DRAW_LINE,0,2);


//---- initialization done
return(0);
}

int start()

{
for(int i = Bars-10; i >= 0; i--)
{
ma[i]=iMA(NULL,0,MAPeriod,MAShift,MAType,PriceType,i);
}

for(int shift = Bars-10; shift >= 0; shift--)
{
ExtMapBuffer1[shift] = ma[shift];
ExtMapBuffer2[shift] = ma[shift];
//Print (ma[shift]);
if (ma[shift] > ma[shift+1])
{
ExtMapBuffer1[shift] = EMPTY_VALUE;
ExtMapBuffer2[shift+1] = ma[shift+1];

}
else if (ma[shift] < ma[shift+1])
{
ExtMapBuffer2[shift] = EMPTY_VALUE;
ExtMapBuffer1[shift+1] = ma[shift+1];
}

}

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



thank you