//+------------------------------------------------------------------+
//|                                                     vfx_demo.mq4 |
//|                                                       Alexandr M |
//|                                               http://vfxlab.net/ |
//+------------------------------------------------------------------+
#property copyright "Alexandr M"
#property link      "http://vfxlab.net/"
#property version   "1.05"
int _Sell = -1;
int _Buy = 1;

extern int TakeProfit = 250;
extern int StopLoss = 150;


int Lots = 1;
int nMagic = 369853;
int LastOpenTime = 0;

int OnInit(){
  
   return(INIT_SUCCEEDED);
}

void OnDeinit(const int reason) {
  
}



void OnTick()
 {
  int signal = signal_cci(); 
   
  if (!CheckFilters(signal) && isUseFilters) return;
    
  if (isTradeAllowed()){
         
      if(signal== _Buy) {
         buy(); 
      }
      if(signal== _Sell){
         sell();
      }         
  }
}

int signal_cci() { // ---------------------------------- CCI crossing 100 level - buy; crossing -100 level - sell
   double x1,x2;
   
   x1 = iCCI(Symbol(),_Period,50,PRICE_TYPICAL,0);
   x2 = iCCI(Symbol(),_Period,50,PRICE_TYPICAL,1);
  
  
  if(x1>-100 && x2<=-100) return _Sell;
  if(x1<100 && x2>=100) return _Buy;
   return 0;   
}




extern bool isUseFilters = true;
bool CheckFilters (int signal) { //true - you can trade
if(signal==_Buy) {
	return iATR(NULL,_Period,14,0)<0.0002; }
if(signal==_Sell) {
	return iATR(NULL,_Period,14,0)<0.0002; }               
                                              
 return true;
}

 //--------------------------------isTradenAllowed--------------------------------



bool isTradeAllowed() { 
   if (LastOpenTime>=Time[0] - Period()*60) return false; // Do not open order twice on the same bar

   return true;
}


bool sell() {//------------------------------sell----------------------------------
  
   string comment ="";
   
   int ticket = OrderSend(Symbol(),OP_SELL,Lots,Bid,3,Bid+StopLoss*Point,Bid-TakeProfit*Point,comment,nMagic);
   
   if(ticket<0){
     printf("Open SELL order error (%i) | Ask = %g, sl=%g, tp=%g",
            GetLastError(),Bid,3,Bid+StopLoss*Point,Bid-TakeProfit*Point); 
     return false;
   } else {
      LastOpenTime = Time[0];
    
   }
     return true;
}

bool buy( ){ // ---------------------------buy--------------------------------------
   string comment = "";
   int ticket = OrderSend(Symbol(),OP_BUY,Lots,Ask,3,Ask-StopLoss*Point,Ask+TakeProfit*Point,comment,nMagic);
   
   if(ticket<0) {
      printf("Open BUY order error(%i) | Ask = %i, sl=%g, tp=%g",
            GetLastError(),Ask,Ask-StopLoss*Point,Ask+TakeProfit*Point); 
      return false;
   } else {
      LastOpenTime = Time[0];
   }
     return true;
}