MQL5 Indicator GeneratorBuild MT5 Indicators & EAs with AI

#property indicator_chart_window
#property indicator_buffers 2
#property indicator_plots   2

#property indicator_label1  "Buy Signal"
#property indicator_type1   DRAW_ARROW
#property indicator_color1  clrLime
#property indicator_width1  2

#property indicator_label2  "Sell Signal"
#property indicator_type2   DRAW_ARROW
#property indicator_color2  clrRed
#property indicator_width2  2

double BuyBuffer[], SellBuffer[];

int OnInit() {
   SetIndexBuffer(0, BuyBuffer, INDICATOR_DATA);
   SetIndexBuffer(1, SellBuffer, INDICATOR_DATA);
   PlotIndexSetInteger(0, PLOT_ARROW, 233);
   PlotIndexSetInteger(1, PLOT_ARROW, 234);
   return INIT_SUCCEEDED;
}

int OnCalculate(const int rates_total, const int prev_calculated, ...) {
   int start = MathMax(prev_calculated - 1, 26);
   for (int i = start; i < rates_total; i++) {
      double rsi    = iRSI(NULL, 0, 14, PRICE_CLOSE, i);
      double macd0  = iMACD(NULL, 0, 12, 26, 9, PRICE_CLOSE, MODE_MAIN, i);
      double macd1  = iMACD(NULL, 0, 12, 26, 9, PRICE_CLOSE, MODE_MAIN, i+1);
      BuyBuffer[i]  = (rsi < 30 && macd0 > macd1) ? Low[i]  - 10*_Point : EMPTY_VALUE;
      SellBuffer[i] = (rsi > 70 && macd0 < macd1) ? High[i] + 10*_Point : EMPTY_VALUE;
   }
   return rates_total;
}

#include <Trade\Trade.mqh>
CTrade trade;

input int    FastEMA   = 9;
input int    SlowEMA   = 21;
input int    ATRPeriod = 14;
input double ATRMult   = 2.0;
input double LotSize   = 0.1;

void OnTick() {
   if (!IsNewBar()) return;

   double ema9_0  = iMA(NULL,0,FastEMA,0,MODE_EMA,PRICE_CLOSE,0);
   double ema9_1  = iMA(NULL,0,FastEMA,0,MODE_EMA,PRICE_CLOSE,1);
   double ema21_0 = iMA(NULL,0,SlowEMA,0,MODE_EMA,PRICE_CLOSE,0);
   double ema21_1 = iMA(NULL,0,SlowEMA,0,MODE_EMA,PRICE_CLOSE,1);
   double atr     = iATR(NULL,0,ATRPeriod,1);

   bool crossOver = ema9_1 <= ema21_1 && ema9_0 > ema21_0;

   if (crossOver && PositionsTotal() == 0) {
      double sl = SymbolInfoDouble(_Symbol, SYMBOL_BID) - ATRMult * atr;
      trade.Buy(LotSize, _Symbol, 0, sl, 0, "EMA ATR EA");
   }

   // Update trailing stop for open positions
   for (int i = PositionsTotal()-1; i >= 0; i--) {
      ulong ticket = PositionGetTicket(i);
      if (PositionGetString(POSITION_SYMBOL) != _Symbol) continue;
      double newSL = PositionGetDouble(POSITION_PRICE_CURRENT) - ATRMult * atr;
      if (newSL > PositionGetDouble(POSITION_SL))
         trade.PositionModify(ticket, newSL, 0);
   }
}