need help with this afl

this afl is giving errors now. Have used the same earlier but now all syntax errors. Help appreciated. I do not know coding this was given to me by sumone.
Thanks.

//+------------------------------------------------------------------+
//| Heiken Ashi Smoothed.mq4 |
//+------------------------------------------------------------------+

#property indicator_chart_window
#property indicator_buffers 4
#property indicator_color1 Violet
#property indicator_color2 Aqua
#property indicator_color3 Violet
#property indicator_color4 Aqua
//---- parameters
extern int MaMetod = 2;
extern int MaPeriod = 6;
extern int MaMetod2 = 3;
extern int MaPeriod2 = 2;
//---- buffers
double ExtMapBuffer1[];
double ExtMapBuffer2[];
double ExtMapBuffer3[];
double ExtMapBuffer4[];
double ExtMapBuffer5[];
double ExtMapBuffer6[];
double ExtMapBuffer7[];
double ExtMapBuffer8[];
//----
int ExtCountedBars=0;
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//|------------------------------------------------------------------|
int init()
{
//---- indicators
IndicatorBuffers(8);

SetIndexStyle(0,DRAW_HISTOGRAM, 0, 1, Violet);
SetIndexBuffer(0, ExtMapBuffer1);
SetIndexStyle(1,DRAW_HISTOGRAM, 0, 1, Aqua);
SetIndexBuffer(1, ExtMapBuffer2);
SetIndexStyle(2,DRAW_HISTOGRAM, 0, 3, Violet);
SetIndexBuffer(2, ExtMapBuffer3);
SetIndexStyle(3,DRAW_HISTOGRAM, 0, 3, Aqua);
SetIndexBuffer(3, ExtMapBuffer4);
//----
SetIndexDrawBegin(0,5);
//---- indicator buffers mapping
SetIndexBuffer(0,ExtMapBuffer1);
SetIndexBuffer(1,ExtMapBuffer2);
SetIndexBuffer(2,ExtMapBuffer3);
SetIndexBuffer(3,ExtMapBuffer4);
SetIndexBuffer(4,ExtMapBuffer5);
SetIndexBuffer(5,ExtMapBuffer6);
SetIndexBuffer(6,ExtMapBuffer7);
SetIndexBuffer(7,ExtMapBuffer8);
//---- initialization done
return(0);
}
//+------------------------------------------------------------------+
//| Custor indicator deinitialization function |
//+------------------------------------------------------------------+
int deinit()
{
//---- TODO: add your code here

//----
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int start()
{
double maOpen, maClose, maLow, maHigh;
double haOpen, haHigh, haLow, haClose;
if(Bars<=10) return(0);
ExtCountedBars=IndicatorCounted();
//---- check for possible errors
if (ExtCountedBars<0) return(-1);
//---- last counted bar will be recounted
if (ExtCountedBars>0) ExtCountedBars--;
int pos=Bars-ExtCountedBars-1;
int pos2=pos;
while(pos>=0)
{
maOpen=iMA(NULL,0,MaPeriod,0,MaMetod,MODE_OPEN,pos);
maClose=iMA(NULL,0,MaPeriod,0,MaMetod,MODE_CLOSE,pos);
maLow=iMA(NULL,0,MaPeriod,0,MaMetod,MODE_LOW,pos);
maHigh=iMA(NULL,0,MaPeriod,0,MaMetod,MODE_HIGH,pos);

haOpen=(ExtMapBuffer5[pos+1]+ExtMapBuffer6[pos+1])/2;
haClose=(maOpen+maHigh+maLow+maClose)/4;
haHigh=MathMax(maHigh, MathMax(haOpen, haClose));
haLow=MathMin(maLow, MathMin(haOpen, haClose));

if (haOpen<haClose)
{
ExtMapBuffer7[pos]=haLow;
ExtMapBuffer8[pos]=haHigh;
}
else
{
ExtMapBuffer7[pos]=haHigh;
ExtMapBuffer8[pos]=haLow;
}
ExtMapBuffer5[pos]=haOpen;
ExtMapBuffer6[pos]=haClose;

pos--;
}

int i;
for(i=0; i<pos2; i++) ExtMapBuffer1=iMAOnArray(ExtMapBuffer7,Bars,MaPeriod2,0,MaMetod2,i);
for(i=0; i<pos2; i++) ExtMapBuffer2=iMAOnArray(ExtMapBuffer8,Bars,MaPeriod2,0,MaMetod2,i);
for(i=0; i<pos2; i++) ExtMapBuffer3=iMAOnArray(ExtMapBuffer5,Bars,MaPeriod2,0,MaMetod2,i);
for(i=0; i<pos2; i++) ExtMapBuffer4=iMAOnArray(ExtMapBuffer6,Bars,MaPeriod2,0,MaMetod2,i);

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

its not amibroker afl its mq4 afl anthoer curenccy programm

it is for metatraders mq4 file not afl file and it is for forex market

thank u. wonder how to convert it to afl as i have no afl knowledge. If anyone can help i would be obliged

If this is what it is then there is no need to. It is everywhere on the internet.
I would not use them though. They look pretty but are VERY slow. Smoothing price is not very smart thing to look at.

Here is one. Do you have a picture?
_________________________________________

SetChartOptions(0,chartShowArrows | chartShowDates);

HaClose = (O + H + L + C)/4;
HaOpen = AMA( Ref( HaClose, -1 ), 0.5 );
HaHigh = Max( H, Max( HaClose, HaOpen ) );
HaLow = Min( L, Min( HaClose, HaOpen ) );
xDiff = (HaHigh - Halow) * 10000;
barcolor = IIf(HaClose >= HaOpen,colorGreen,colorRed);
PlotOHLC( HaOpen, HaHigh, HaLow, HaClose, "", barcolor, styleCandle );