Close position when reach a specific value of RSI or sequence values of RSI

hi

//--- checking of conditions to close short position
//--- signal line crossover of overbought/oversold levels (upward 30, upward 70)
  if((RSI(1)<50) && (RSI(2)>50)))
     result=40;

what is the best way to achive this? Isn't it through a trailing stop? or i have another way

//+------------------------------------------------------------------+
//| Checks conditions for entry and exit from market                 |
//| 1) Market entry (open long position, result=80)                  |
//| 2) Market exit (close short position, result=40)                 |
//+------------------------------------------------------------------+
int CBE_BE_RSI::LongCondition()
  {
   int result=0;
//--- idx can be used to determine Expert Advisor work mode
//--- idx=0 - in this case EA checks trade conditions at each tick
//--- idx=1 - in this case EA checks trade consition only at news bars
   int idx   =StartIndex();
//--- checking of conditions to open long position
//--- formation of Bullish Engulfing pattern and RSI<30
  if(CheckCandlestickPattern(CANDLE_PATTERN_BULLISH_ENGULFING) && (RSI(1)<40))
     result=80;
//--- checking of conditions to close short position
//--- signal line crossover of oerbought/oversold levels (upward 30, upward 70)
  if((RSI(1)<50) && (RSI(2)>50)))
     result=40;
//--- return result
   return(result);
  }

//+------------------------------------------------------------------+
//| Checks conditions for entry and exit from market                 |
//| 1) Market entry (open short position, result=80)                 |
//| 2) Market exit (close long position, result=40)                  |
//+------------------------------------------------------------------+
int CBE_BE_RSI::ShortCondition()
  {
   int result=0;
//--- idx can be used to determine Expert Advisor work mode
//--- idx=0 - in this case EA checks trade conditions at each tick
//--- idx=1 - in this case EA checks trade consition only at news bars
   int idx   =StartIndex();
//--- checking of conditions to open short position
//--- formation of Bearish Engulfing pattern and RSI>60
  if(CheckCandlestickPattern(CANDLE_PATTERN_BEARISH_ENGULFING) && (RSI(1)>60))
     result=80;
//--- checking of conditions to close long position
//--- signal line crossover of overbought/oversold levels (downward 70, downward 30)
  if((RSI(1)>50) && (RSI(2)<50)))
     result=40;
//--- return result
   return(result);
  }