ForexWall-E.mq4

//+------------------------------------------------------------------+
//|                                                  ForexWall-E.mq4 |
//|                                             Smart Forex Learning |
//|                                   https://smartforexlearning.com |
//+------------------------------------------------------------------+
#property copyright "Smart Forex Learning"
#property link      "https://smartforexlearning.com"
#property version   "1.00"
#property strict
//+------------------------------------------------------------------+
//| Expert initialization function                                   |
//+------------------------------------------------------------------+
int OnInit()
  {
//---
   
//---
   return(INIT_SUCCEEDED);
  }
//+------------------------------------------------------------------+
//| Expert deinitialization function                                 |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)
  {
//---
   
  }
//+------------------------------------------------------------------+
//| Expert tick function                                             |
//+------------------------------------------------------------------+
void OnTick()
{
    if (OrdersTotal() > 0) {
        TrailStops();
        return;
    }
    
    double lots = 0.01;
    int stopLoss = 500;
    int takeProfit = 500;
    double ema = iMA(NULL, 0, 300, 0, MODE_EMA, PRICE_CLOSE, 0);
    
    if (Ask + 500 * Point < ema) {
        if (OrderSend(Symbol(), OP_BUY, lots, Ask, 3, Ask - stopLoss * Point, Ask + takeProfit * Point, "my forex wall-e order", 12345, 0, Green)) {
            Print("Buy order succeeded!");
        }
    }

    if (Bid - 500 * Point > ema) {
        if (OrderSend(Symbol(), OP_SELL, lots, Bid, 3, Bid + stopLoss * Point, Bid - takeProfit * Point, "my forex wall-e order", 12345, 0, Red)) {
            Print("Sell order succeeded!");
        }
    }
}
//+------------------------------------------------------------------+

//+------------------------------------------------------------------+
//| Trailing stop function                                           |
//+------------------------------------------------------------------+
void TrailStops()
{
    int trailingStop = 300;

    for (int i = 0; i < OrdersTotal(); i++) {
        if (!OrderSelect(i, SELECT_BY_POS, MODE_TRADES)) {
            continue;
        }
        
        if (OrderSymbol() != Symbol()) {
            continue;
        }
        
        if (OrderType() == OP_BUY) {
            if (Bid - OrderOpenPrice() > trailingStop * Point && OrderStopLoss() < Bid - trailingStop * Point) {
                if (!OrderModify(OrderTicket(), OrderOpenPrice(), Bid - trailingStop * Point, OrderTakeProfit(), 0, Green)) {
                    Print("OrderModify error ",GetLastError());
                }
                return;
            }
        } else if (OrderType() == OP_SELL) {
            if (OrderOpenPrice() - Ask > trailingStop * Point && OrderStopLoss() > Ask + trailingStop * Point) {
                if (!OrderModify(OrderTicket(), OrderOpenPrice(), Ask + trailingStop * Point, OrderTakeProfit(), 0, Green)) {
                    Print("OrderModify error ",GetLastError());
                }
                return;
            }
        }
    }
}