استفسار عن كيفية برمجة التريند في mql4

// Input parameters
extern int lookbackBars = 20;  // Number of bars to consider for trend determination

// Trend determination function
int DetermineTrend()
{
    int trend = 0;
    int higherHighs = 0;
    int higherLows = 0;
    int lowerHighs = 0;
    int lowerLows = 0;
    
    for (int i = 1; i <= lookbackBars; i++)
    {
        if (High[i] > High[i - 1])
            higherHighs++;
        else if (Low[i] < Low[i - 1])
            higherLows++;
        else if (High[i] < High[i - 1])
            lowerHighs++;
        else if (Low[i] > Low[i - 1])
            lowerLows++;
    }
    
    if (higherHighs >= 2 && higherLows >= 2)
        trend = 1;  // Uptrend
    else if (lowerHighs >= 2 && lowerLows >= 2)
        trend = -1;  // Downtrend
    
    return trend;
}

// Entry point of the Expert Advisor
int start()
{
    int currentTrend = DetermineTrend();
    
    // Perform trading operations based on the determined trend
    
    return 0;
}

int SR()
{
   for(int j=0;j<ArraySize(TRC);j++) 
   {
      TSV[j]=0;
      TRV[j]=0;
      TSC[j]=0;
      TRC[j]=0;
      TSM[j]="\n";
      TRM[j]="\n";
   }
   int mR=-1;
   int mS=-1;
   int bar=99999;
   int barT=iBars(Symbol(),0);
   if(bar>barT-CRITERION_CANDLES-2)bar=barT-CRITERION_CANDLES-2;
   if(bar>2*CRITERION_CANDLES-1)
   {
      for(j=0;j<bar;j++) 
      {
         if(mR>250) break;
         if(TAIL_CLOSE=="TAIL")
         {
            int highN1=iHighest(Symbol(),0,MODE_HIGH,CRITERION_CANDLES,j);
            int highN2=iHighest(Symbol(),0,MODE_HIGH,CRITERION_CANDLES,CRITERION_CANDLES+j-1);
         }
         else
         {
            highN1=iHighest(Symbol(),0,MODE_CLOSE,CRITERION_CANDLES,j);
            highN2=iHighest(Symbol(),0,MODE_CLOSE,CRITERION_CANDLES,CRITERION_CANDLES+j-1);
         }
         if(highN1==highN2 && highN1>1)
         {
            mR++;
            TRC[mR]=highN2;
            if(TAIL_CLOSE=="TAIL")
            {
               TRV[mR]=High[highN2];
            }
            else
            {
               TRV[mR]=Close[highN2];
            }
            TRM[mR]="HRT\n"+Symbol()+"\n"+TRV[mR]+"("+TRC[mR]+")\n"+TimeToString(Time[TRC[mR]],TIME_DATE|TIME_MINUTES);
         }
      }
      if(TAIL_CLOSE=="TAIL")
      {
         TSC[0]=iLowest(Symbol(),0,MODE_LOW,TRC[0],0);
         TSV[0]=Low[TSC[0]];
         TSM[0]="HST\n"+Symbol()+"\n"+TSV[0]+"("+TSC[0]+")\n"+TimeToString(Time[TSC[0]],TIME_DATE|TIME_MINUTES);
      }
      else
      {
         TSC[0]=iLowest(Symbol(),0,MODE_CLOSE,TRC[0],0);
         TSV[0]=Close[TSC[0]];
         TSM[0]="HST\n"+Symbol()+"\n"+TSV[0]+"("+TSC[0]+")\n"+TimeToString(Time[TSC[0]],TIME_DATE|TIME_MINUTES);
      }
      int r;
      for(j=0;j<mR;j++) 
      {
         r++;
         if(TAIL_CLOSE=="TAIL")
         {
            TSC[r]=iLowest(Symbol(),0,MODE_LOW,TRC[j+1]-TRC[j]-1,TRC[j]+1);
            TSV[r]=Low[TSC[r]];
         }
         else
         {
            TSC[r]=iLowest(Symbol(),0,MODE_CLOSE,TRC[j+1]-TRC[j]-1,TRC[j]+1);
            TSV[r]=Close[TSC[r]];
         }
         TSM[r]="HST\n"+Symbol()+"\n"+TSV[r]+"("+TSC[r]+")\n"+TimeToString(Time[TSC[r]],TIME_DATE|TIME_MINUTES);
      }
   }
   return mR;
}

int candles=0;
double TSV[255];
int TSC[255];
string TSM[255];
double TRV[255];
int TRC[255];
string TRM[255];

   string name1="name";
   
   
   int OnInit()
{


   EventSetTimer(1);
      ObjectDelete(name1);
   ObjectCreate(0,name1,OBJ_TREND,0,Time[33],High[33],Time[0],High[0]);
   ObjectSetInteger(0,name1,OBJPROP_WIDTH,1);
   ObjectSetInteger(0,name1,OBJPROP_COLOR,clrYellow);

   
   return(INIT_SUCCEEDED);
}

void OnDeinit(const int reason)
{
   ObjectsDeleteAll(0);
   EventKillTimer();
}


double rad=180/M_PI;
void ObjText(string name,int C,double price, string value,color clr, double angle)
{
   ObjectCreate(0,name,OBJ_TEXT,0,Time[C],price);
   ObjectSetString(0,name,OBJPROP_TEXT,value); 
   ObjectSetString(0,name,OBJPROP_FONT,0); 
   ObjectSetInteger(0,name,OBJPROP_FONTSIZE,11);
   ObjectSetDouble(0,name,OBJPROP_ANGLE,angle);
   ObjectSetInteger(0,name,OBJPROP_COLOR,clr); 
   ObjectSetInteger(0,name,OBJPROP_BACK,FALSE); 
               ObjectSetInteger(0,name,OBJPROP_HIDDEN,TRUE);
}




void OnTimer()
{
   double heightW=(WindowPriceMax()-WindowPriceMin());
   double widthW=WindowBarsPerChart();
   double heightC=ChartGetInteger(0,CHART_HEIGHT_IN_PIXELS);
   double widthC=ChartGetInteger(0,CHART_WIDTH_IN_PIXELS);
   double resolution=1;
   if((widthC*heightW)>0.00000001)
   resolution=(widthW/heightW)*(heightC/widthC);
   double pr=heightW/100;
   int i=0;
   double y2=ObjectGet(name1,OBJPROP_PRICE1);
   double y1=ObjectGet(name1,OBJPROP_PRICE2);
   int  x2=iBarShift(NULL,0,ObjectGet(name1,OBJPROP_TIME1));
   int  x1=iBarShift(NULL,0,ObjectGet(name1,OBJPROP_TIME2));
   
   
   double trend_at_candle_0=ObjectGetValueByShift(name1,0);
   if(x1!=x2)
   {
   double slope=(y1-y2)/(x1-x2);
   
      double angle=MathArctan(-slope*resolution)*(180/M_PI);
    ObjText( "nameText", 0, trend_at_candle_0+3*pr,DoubleToString(trend_at_candle_0,_Digits)+"@ "+i,clrWhite,angle);
   }
   
//////////
/// الطريقة الثانية لحساب قيمة الترند دون الحاجة لرسمه على فرض معرفتك بنقاط الارتكاز
// افترض Y1, Y2 اعلاه هي نقاط الارتكاز
//x1, x2 هي محور السينات


   double slope_t=(y2-y1)/(x2-x1);
   // then using linear equation y=mx+b ///////// m = slope_t

//y1-y2=m(x1-x2) ....> then at x2=0 = current candle, y1=y2+m(x1)

double y = y2-slope_t*(x2);
    ObjText( "nameText0", 0, trend_at_candle_0+6*pr,DoubleToString(y,_Digits)+"@ "+i,clrYellow,angle);
}