bb_ema.mq5

#property copyright "Tayyebi"
#property link      "https://tradingview.com/u/tayyebi"
#property version   "1.00"

int OnInit()
  {
   Comment("Started " + Symbol());
   return(INIT_SUCCEEDED);
  }
  
void OnDeinit(const int reason)
  {
  }
  
void OnTick()
  {
      ENUM_TIMEFRAMES period = PERIOD_M1;
      
      // Indicators
      double bb = iBands(NULL,period,20,2,0,PRICE_LOW);//,MODE_LOWER,0);
      double sma = iMA(NULL,period,21,0,MODE_SMA,PRICE_MEDIAN);
      double ema = iMA(NULL,period,20,0,MODE_EMA,PRICE_MEDIAN);
      
      // Prices
      double high0 = iHigh(NULL, period, 0);
      double low0 = iLow(NULL, period, 0);
      double up0 = iHigh(NULL, period, 0);
      double close1 = iClose(NULL, period, 1);
      
      // Logic
      // bool buyCondition = ( low0 >= close1 ) && ( ema <= sma) ; 
      bool buyCondition = ( low0 > close1) ; 
      // bool sellCondition = (low0 < up0) && (close1 > up0)  && (ema >= sma) ;
      bool sellCondition = ( up0 < close1) ;
      
      Comment(StringFormat("high, low, up, close: %d, %d, %d, %d", high0, low0, up0, close1));
      
      // Operations
      if ( buyCondition )
      {
         ObjectCreate(NULL,"signal",OBJ_ARROW_BUY,0,TimeCurrent(), low0);
      }
      else if (sellCondition)
      {
         ObjectCreate(NULL,"signal",OBJ_ARROW_SELL,0,TimeCurrent(), high0);
      }
      
      // Clear chart
      if (!buyCondition && !sellCondition) {
         ObjectDelete(NULL, "signal");
      }
  }