//+------------------------------------------------------------------+
//|                                                     myRandom.mq4 |
//|                                   Copyright © 2007 EarnForex.com |
//|                                        http://www.earnforex.com/ |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2007, EarnForex.com"
#property link      "http://www.earnforex.com"

extern double Lots = 0.1;
extern double Slippage = 3;
extern int RandomEntryPeriod = 80; //In bars. How many bars to wait before entering a new position.
extern int StopLoss = 90;
extern int TakeProfit = 600;
extern int MaxPositions = 4;

extern color clOpenBuy = Blue;
extern color clOpenSell = Red;

int Magic;
int LastBars = 0;
int OrderTaken = 0;

double Poin;
int Deviation;

int init()
{
   //Checking for unconvetional Point digits number
   if ((Point == 0.00001) || (Point == 0.001))
   {
      Poin = Point * 10;
      Deviation = Slippage * 10;
   }
   else
   {
      Poin = Point; //Normal
      Deviation = Slippage;
   }
   Magic = Period()+1339005;
   return(0);
}

//+------------------------------------------------------------------+
//| Random entry expert advisor                                      |
//+------------------------------------------------------------------+
int start()
{
	if (LastBars == Bars) return(0);
	else LastBars = Bars;

   if (AccountFreeMargin() < (Lots*2*1000)) return(0); 

   if (Lots < 0.1) return(0);

   MathSrand(TimeLocal());
   
   int count = 0;
   int total = OrdersTotal();
   for (int pos = 0; pos < total; pos++)
   {
     if (OrderSelect(pos, SELECT_BY_POS) == false) continue;
     if ((OrderMagicNumber() == Magic) && (OrderSymbol() == Symbol())) count++;
   }

   if (count >= MaxPositions) return(0);
   
   if (Bars >= OrderTaken + RandomEntryPeriod)
   {
	  if ((MathRand()%2) == 1)
	  {
		  fSell();
	  }
	  else
	  {
		  fBuy();
	  }
	  OrderTaken = Bars;
   }
}

//+------------------------------------------------------------------+
//| Buy                                                              |
//+------------------------------------------------------------------+
void fBuy()
{
	RefreshRates();
	int result = OrderSend(Symbol(),OP_BUY,Lots,Ask,Deviation,Ask-StopLoss*Poin,Ask+TakeProfit*Poin,"myRandom",Magic,0,clOpenBuy); 
	if (result == -1)
	{
		int e = GetLastError();
		Print(e);
	}
}

//+------------------------------------------------------------------+
//| Sell                                                             |
//+------------------------------------------------------------------+
void fSell()
{
	RefreshRates();
	int result = OrderSend(Symbol(),OP_SELL,Lots,Bid,Deviation,Bid+StopLoss*Poin,Bid-TakeProfit*Poin,"myRandom",Magic,0,clOpenSell); 
	if (result == -1)
	{
		int e = GetLastError();
		Print(e);
	}
}