Code: Select all

class Crossover
  {
private:
   double l1_b0;	// line1 bar0
   double l1_b1;	// line1 bar1
   double l2_b0;	// line2 bar0
   double l2_b1;	// line2 bar1

public:
   //--- Parametric constructor
   Crosover(double line1_bar0, double line1_bar1, double line2_bar0, double line1_bar1);
   Crosover(double line1_bar0, double line1_bar1, double level);
   bool CrossDown::Crossover(void);
   bool CrossUp::Crossover(void);
  };


// constructor for two lines crossing over
void Crossover::Crossover(double line1_bar0, double line1_bar1, double line2_bar0, double line1_bar1) {

   l1_b0=line1_bar0;
   l1_b1=line1_bar1;
   l2_b0=line2_bar0;
   l2_b1=line2_bar1;

}

// constructor for line crossing over a level
void Crossover::Crossover(double line1_bar0, double line1_bar1, double level) {

   l1_b0=line1_bar0;
   l1_b1=line1_bar1;
   l2_b0=level;
   l2_b1=level;

}

// line one crossing down over line 2 or level
bool CrossDown::Crossover(void) {

    if(l1_b0>=l2_b0 && l1_b1<l2_b1) {
        return(true)
    }

    return(false);

}

// line one crossing up over line 2 or level
bool CrossUp::Crossover(void) {

    if(l1_b0<=l2_b0 && l1_b1>l2_b1) {
        return(true)
    }

    return(false);

}

Code: Select all

   int MPeriod1=50;	// slow MA period
   int MPeriod2=200;	// fast MA period

   double FMA=iMA(NULL,0,MPeriod1,0,MODE_SMA,PRICE_CLOSE,0);
   double SMA=iMA(NULL,0,MPeriod2,0,MODE_SMA,PRICE_CLOSE,0);
   double PFMA=iMA(NULL,0,MPeriod1,0,MODE_SMA,PRICE_CLOSE,1);
   double PSMA=iMA(NULL,0,MPeriod2,0,MODE_SMA,PRICE_CLOSE,1);

   Crossover Xover(FMA, PFMA, SMA, PSMA);


   if(Xover.CrossDown()) {	// fast crossed down over slow line
	// do something
   }

   if(Xover.CrossUp()) {	// fast crossed up over slow line
	// do something
   }