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EA_Gold_MNAKOO

MQL4 Asesores Expertos

Tarea técnica

//+------------------------------------------------------------------+
//| XAUUSD Automated Forex Robot                                     |
//| Enhanced Version with Error Handling and Improvements           |
//+------------------------------------------------------------------+
input int FastMA = 10;                 // Fast moving average period
input int SlowMA = 50;                 // Slow moving average period
input int RSI_Period = 14;             // RSI period
input double Overbought = 70;          // RSI overbought level
input double Oversold = 30;            // RSI oversold level
input double RiskPercent = 1.0;        // Risk per trade as a percentage of account equity
input double ATRMultiplier = 2.0;      // ATR multiplier for stop-loss
input double TrailingStop = 300;       // Trailing stop in points
input double MinLotSize = 0.01;        // Minimum lot size
input double LotStep = 0.01;           // Lot size increment
input int ATR_Period = 14;             // ATR period
input int MaxSlippage = 3;             // Maximum slippage in points
input int MAGIC_NUMBER = 123456;       // Unique identifier for trades
input string TradeComment = "XAUUSD Bot"; // Trade comment

//+------------------------------------------------------------------+
//| OnTick Function - Main Logic                                     |
//+------------------------------------------------------------------+
void OnTick() {
    // Calculate indicators
    static double fastMA, slowMA, rsi, atr;
    fastMA = iMA(NULL, 0, FastMA, 0, MODE_EMA, PRICE_CLOSE, 0);
    slowMA = iMA(NULL, 0, SlowMA, 0, MODE_EMA, PRICE_CLOSE, 0);
    rsi = iRSI(NULL, 0, RSI_Period, PRICE_CLOSE, 0);
    atr = iATR(NULL, 0, ATR_Period, 0);

    // Check for existing trades
    bool buyOpen = IsTradeOpen(OP_BUY);
    bool sellOpen = IsTradeOpen(OP_SELL);

    // Entry logic
    if (fastMA > slowMA && rsi > Oversold && rsi < 50 && !buyOpen) {
        // Buy Signal
        double sl = Bid - ATRMultiplier * atr;
        double tp = Bid + ATRMultiplier * atr * 2;
        double lotSize = CalculateLotSize(sl);
        OpenTrade(OP_BUY, lotSize, sl, tp);
    }

    if (fastMA < slowMA && rsi < Overbought && rsi > 50 && !sellOpen) {
        // Sell Signal
        double sl = Ask + ATRMultiplier * atr;
        double tp = Ask - ATRMultiplier * atr * 2;
        double lotSize = CalculateLotSize(sl);
        OpenTrade(OP_SELL, lotSize, sl, tp);
    }

    // Exit logic (Close trades when conditions reverse)
    if (buyOpen && (fastMA < slowMA || rsi >= Overbought)) {
        CloseTrade(OP_BUY);
    }

    if (sellOpen && (fastMA > slowMA || rsi <= Oversold)) {
        CloseTrade(OP_SELL);
    }

    // Manage Trailing Stop
    ManageTrailingStop();
}

//+------------------------------------------------------------------+
//| Calculate Lot Size Based on Risk                                 |
//+------------------------------------------------------------------+
double CalculateLotSize(double stopLossPrice) {
    double accountEquity = AccountEquity();
    double riskAmount = (RiskPercent / 100) * accountEquity;
    double stopLossDistance = MathAbs(Bid - stopLossPrice);
    double lotSize = riskAmount / (stopLossDistance * MarketInfo(Symbol(), MODE_TICKVALUE));

    // Adjust lot size to broker limits
    lotSize = MathMax(lotSize, MinLotSize);
    lotSize = NormalizeDouble(MathFloor(lotSize / LotStep) * LotStep, 2);
    return lotSize;
}

//+------------------------------------------------------------------+
//| Open Trade Function                                              |
//+------------------------------------------------------------------+
void OpenTrade(int tradeType, double lotSize, double stopLoss, double takeProfit) {
    double price = tradeType == OP_BUY ? Ask : Bid;
    int ticket = OrderSend(Symbol(), tradeType, lotSize, price, MaxSlippage, stopLoss, takeProfit, TradeComment, MAGIC_NUMBER, 0, Blue);
    if (ticket < 0) {
        int errorCode = GetLastError();
        Print("Error opening trade: ", errorCode, ". Retrying...");
        Sleep(1000); // Retry after 1 second
        ticket = OrderSend(Symbol(), tradeType, lotSize, price, MaxSlippage, stopLoss, takeProfit, TradeComment, MAGIC_NUMBER, 0, Blue);
        if (ticket < 0) {
            Print("Failed to open trade after retry. Error: ", GetLastError());
        }
    } else {
        Print("Trade opened: ", ticket);
    }
}

//+------------------------------------------------------------------+
//| Close Trade Function                                             |
//+------------------------------------------------------------------+
void CloseTrade(int tradeType) {
    for (int i = OrdersTotal() - 1; i >= 0; i--) {
        if (OrderSelect(i, SELECT_BY_POS, MODE_TRADES)) {
            if (OrderSymbol() == Symbol() && OrderType() == tradeType && OrderMagicNumber() == MAGIC_NUMBER) {
                int ticket = OrderClose(OrderTicket(), OrderLots(), tradeType == OP_BUY ? Bid : Ask, MaxSlippage, Red);
                if (ticket < 0) {
                    Print("Error closing trade: ", GetLastError());
                } else {
                    Print("Trade closed: ", ticket);
                }
            }
        }
    }
}

//+------------------------------------------------------------------+
//| Manage Trailing Stop Function                                    |
//+------------------------------------------------------------------+
void ManageTrailingStop() {
    for (int i = OrdersTotal() - 1; i >= 0; i--) {
        if (OrderSelect(i, SELECT_BY_POS, MODE_TRADES)) {
            if (OrderSymbol() == Symbol() && OrderMagicNumber() == MAGIC_NUMBER) {
                double newStopLoss;
                if (OrderType() == OP_BUY) {
                    newStopLoss = Bid - TrailingStop * Point;
                    if (newStopLoss > OrderStopLoss()) {
                        OrderModify(OrderTicket(), OrderOpenPrice(), newStopLoss, OrderTakeProfit(), 0, Blue);
                    }
                } else if (OrderType() == OP_SELL) {
                    newStopLoss = Ask + TrailingStop * Point;
                    if (newStopLoss < OrderStopLoss()) {
                        OrderModify(OrderTicket(), OrderOpenPrice(), newStopLoss, OrderTakeProfit(), 0, Blue);
                    }
                }
            }
        }
    }
}

//+------------------------------------------------------------------+
//| Check if Trade Exists                                            |
//+------------------------------------------------------------------+
bool IsTradeOpen(int tradeType) {
    for (int i = OrdersTotal() - 1; i >= 0; i--) {
        if (OrderSelect(i, SELECT_BY_POS, MODE_TRADES)) {
            if (OrderSymbol() == Symbol() && OrderType() == tradeType && OrderMagicNumber() == MAGIC_NUMBER) {
                return true;
            }
        }
    }
    return false;
}

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