Hey guys.
Could someone please translate the code of the following MT4 indicator? It doesn’t need to be multi-timeframe.
Thank you very much in advance.

//+——————————————————————+
//| OBV2.mq4 |
//+——————————————————————+
#property indicator_separate_window
#property indicator_buffers 2
#property indicator_color1 DodgerBlue
#property indicator_color2 Red
//#property indicator_maximum 1
//#property indicator_minimum 0

extern string TimeFrame = “Current time frame”;
extern int SignalPeriod = 13;
extern int SignalMaMode = MODE_LWMA;

extern bool alertsOn = false;
extern bool alertsOnCurrent = true;
extern bool alertsMessage = true;
extern bool alertsSound = false;
extern bool alertsEmail = false;
input bool alertsNotify = false;

double gadblOBV[];
double ma[];
double hu[];
double hd[];
double trend[];

string indicatorFileName;
bool returnBars;
bool calculateValue;
int timeFrame;

int init()
{
IndicatorBuffers(5);
SetIndexBuffer( 0, hu ); SetIndexStyle(0,DRAW_LINE);
SetIndexBuffer( 1, hd ); SetIndexStyle(1,DRAW_LINE);
SetIndexBuffer( 2, gadblOBV );
SetIndexBuffer( 3, ma );
SetIndexBuffer( 4, trend );
IndicatorDigits( 0 );

//
//
//
//
//

indicatorFileName = WindowExpertName();
calculateValue = TimeFrame==”calculateValue”; if (calculateValue) { return(0); }
returnBars = TimeFrame==”returnBars”; if (returnBars) { return(0); }
timeFrame = stringToTimeFrame(TimeFrame);

//
//
//
//
//

IndicatorShortName( timeFrameToString(timeFrame)+” O” );
SetIndexLabel( 0, “OBV2″ );
return( 0 );
}

int start()
{
int counted_bars = IndicatorCounted();
if(counted_bars<0) return(-1);
if(counted_bars>0) counted_bars–;
int limit=MathMin(Bars-counted_bars,Bars-1);
if (returnBars) { hu[0] = MathMin(limit+1,Bars-1); return(0); }

//
//
//
//
//

if (calculateValue || timeFrame == Period())
{
for( int inx = limit; inx >=0; inx– )
{
if ( inx == ( Bars – 1 ) )
{
gadblOBV[inx] = Volume[inx];
}
else
{
if ( ( High[inx] == Low[inx] ) || ( Open[inx] == Close[inx] ) || ( Close[inx] == Close[inx+1] ) )
{
gadblOBV[inx] = gadblOBV[inx+1];
}
else
{
if ( Close[inx] > Open[inx] ) gadblOBV[inx] = gadblOBV[inx+1] + ( Volume[inx] * ( Close[inx] – Open[inx] ) / ( High[inx] – Low[inx] ) );
else gadblOBV[inx] = gadblOBV[inx+1] – ( Volume[inx] * ( Open[inx] – Close[inx] ) / ( High[inx] – Low[inx] ) );
}
}
}
for(inx=limit; inx>=0; inx–)
{
ma[inx]=iMAOnArray(gadblOBV,0,SignalPeriod,0,SignalMaMode,inx);
// hu[inx] = EMPTY_VALUE;
// hd[inx] = EMPTY_VALUE;
trend[inx] = trend[inx+1];
// if (gadblOBV[inx] > ma[inx]) { trend[inx] = 1; hu[inx] = 1; }
// if (gadblOBV[inx] < ma[inx]) { trend[inx] = -1; hd[inx] = 1; }

if (ma[inx]>ma[inx+1]) { trend[inx] = 1; hu[inx] = ma[inx]; }
if (ma[inx]<ma[inx+1]) { trend[inx] = -1; hd[inx] = ma[inx]; }
}
manageAlerts();
return( 0 );
}

limit = MathMax(limit,MathMin(Bars-1,iCustom(NULL,timeFrame,indicatorFileName,”returnBars”,0,0)*timeFrame/Period()));
for (int i=limit; i>=0; i–)
{
int y = iBarShift(NULL,timeFrame,Time[i]);
hu[i] = iCustom(NULL,timeFrame,indicatorFileName,”calculateValue”,SignalPeriod,SignalMaMode,alertsOn,alertsOnCurrent,alertsMessage,alertsSound,alertsEmail,0,y);
hd[i] = iCustom(NULL,timeFrame,indicatorFileName,”calculateValue”,SignalPeriod,SignalMaMode,alertsOn,alertsOnCurrent,alertsMessage,alertsSound,alertsEmail,1,y);
}
return(0);
}

//——————————————————————-
//
//——————————————————————-
//
//
//
//
//

string sTfTable[] = {“M1″,”M5″,”M15″,”M30″,”H1″,”H4″,”D1″,”W1″,”MN”};
int iTfTable[] = {1,5,15,30,60,240,1440,10080,43200};

//
//
//
//
//

int stringToTimeFrame(string tfs)
{
StringToUpper(tfs);
for (int i=ArraySize(iTfTable)-1; i>=0; i–)
if (tfs==sTfTable[i] || tfs==””+iTfTable[i]) return(MathMax(iTfTable[i],Period()));
return(Period());
}
string timeFrameToString(int tf)
{
for (int i=ArraySize(iTfTable)-1; i>=0; i–)
if (tf==iTfTable[i]) return(sTfTable[i]);
return(“”);
}

//+——————————————————————
//|
//+——————————————————————
//
//
//
//
//

void manageAlerts()
{
if (!calculateValue && alertsOn)
{
if (alertsOnCurrent)
int whichBar = 0;
else whichBar = 1;
if (trend[whichBar] != trend[whichBar+1])
{
if (trend[whichBar] == 1) doAlert(whichBar,” buy “);
if (trend[whichBar] ==-1) doAlert(whichBar,” sell “);
}
}
}

//
//
//
//
//

void doAlert(int forBar, string doWhat)
{
static string previousAlert=”nothing”;
static datetime previousTime;
string message;

if (previousAlert != doWhat || previousTime != Time[forBar]) {
previousAlert = doWhat;
previousTime = Time[forBar];

//
//
//
//
//

message = StringConcatenate(Symbol(),” at “,TimeToStr(TimeLocal(),TIME_SECONDS),” “,timeFrameToString(_Period),” OBV2 “,doWhat);
if (alertsMessage) Alert(message);
if (alertsEmail) SendMail(StringConcatenate(Symbol(),” OBV2 “),message);
if (alertsSound) PlaySound(“alert2.wav”);
if (alertsNotify) SendNotification(message);
}
}

OBV-MTF-MT4.jpg