forked from LengKundee/MQL5-Google-Onedrive
516c653868
Optimized the `CalculateLots` function in `SMC_TrendBreakout_MTF_EA.mq5` by: 1. Pre-calculating the inverse of `SYMBOL_MARGIN_INITIAL` in `OnInit` to replace division with multiplication. 2. Refactoring the logic flow to apply margin constraints before normalization and clamping. 3. Consolidating redundant `MathFloor`, `MathMax`, and `MathMin` calls into a single execution path. This reduces the computational overhead of lot sizing, especially when margin limits are approached, and improves code readability.
468 lines
18 KiB
MQL5
468 lines
18 KiB
MQL5
//+------------------------------------------------------------------+
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//| SMC_TrendBreakout_MTF_EA.mq5 |
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//| SMC + Trend Breakout (MTF) EA |
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//| BOS/CHoCH + Donchian + Lower-TF Conf |
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//+------------------------------------------------------------------+
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#property copyright "SMC Trend Breakout MTF EA"
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#property link ""
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#property version "1.00"
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#include <Trade\Trade.mqh>
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//--- Input Parameters
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//=== Trading Settings ===
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input bool EnableTrading = true; // Enable Trading
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input int MagicNumber = 123456; // Magic Number
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input string TradeComment = "SMC_TrendBreakout_MTF"; // Trade Comment
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//=== Risk Management ===
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input double RiskPercent = 1.0; // Risk Per Trade (% of equity)
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input double MaxLots = 0.01; // Maximum Lots
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input double MinLots = 0.01; // Minimum Lots
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input bool RiskUseEquity = true; // Use Equity for Risk Calculation
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input bool RiskClampToFreeMargin = true; // Clamp Lots to Free Margin
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//=== Stop Loss Settings ===
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enum ENUM_SL_MODE {
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SL_ATR, // ATR-based SL
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SL_SWING, // Swing-based SL
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SL_FIXED_POINTS // Fixed Points SL
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};
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input ENUM_SL_MODE SLMode = SL_ATR; // Stop Loss Mode
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input double ATR_SL_Mult = 2.0; // ATR SL Multiplier (for SL_ATR)
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input int ATR_Period = 14; // ATR Period
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input int SwingSLBufferPoints = 10; // Swing SL Buffer (points, for SL_SWING)
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input int FixedSLPoints = 50; // Fixed SL Points (for SL_FIXED_POINTS)
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//=== Take Profit Settings ===
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enum ENUM_TP_MODE {
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TP_RR, // Risk:Reward Ratio
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TP_FIXED_POINTS, // Fixed Points TP
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TP_DONCHIAN_WIDTH // Donchian Width TP
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};
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input ENUM_TP_MODE TPMode = TP_RR; // Take Profit Mode
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input double RR = 2.0; // Risk:Reward Ratio (for TP_RR)
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input int FixedTPPoints = 100; // Fixed TP Points (for TP_FIXED_POINTS)
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input double DonchianTP_Mult = 1.5; // Donchian TP Multiplier (for TP_DONCHIAN_WIDTH)
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//=== Donchian Channel Settings ===
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input int DonchianPeriod = 20; // Donchian Period
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input int DonchianShift = 0; // Donchian Shift
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//=== Lower Timeframe Confirmation ===
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input ENUM_TIMEFRAMES LowerTF = PERIOD_M5; // Lower Timeframe for Confirmation
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input int EMA_Fast_Period = 50; // Fast EMA Period (Lower TF)
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input int EMA_Slow_Period = 200; // Slow EMA Period (Lower TF)
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//=== Other Settings ===
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input int Slippage = 30; // Slippage (points)
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input bool ShowAlerts = true; // Show Alerts
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//--- Global Variables
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CTrade trade;
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int atrHandle = INVALID_HANDLE;
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int donchianBandsHandle = INVALID_HANDLE; // Single handle for both upper and lower
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int emaFastHandle = INVALID_HANDLE;
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int emaSlowHandle = INVALID_HANDLE;
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datetime lastBarTime = 0;
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bool positionOpen = false;
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//--- Cached Symbol Properties (for performance)
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// These are initialized once in OnInit() to avoid repeated calls to SymbolInfo...() functions in hot paths.
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double g_point;
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int g_digits;
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double g_minLot;
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double g_maxLot;
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double g_lotStep;
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double g_tickValue;
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double g_tickSize;
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double g_marginInitial;
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double g_riskMultiplier;
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double g_lotValuePerUnit;
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double g_invLotStep;
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double g_swingSLBuffer;
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double g_fixedSL;
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double g_fixedTP;
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double g_finalMinLot;
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double g_finalMaxLot;
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double g_lotRiskFactor;
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double g_invMarginInitial;
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//+------------------------------------------------------------------+
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//| Expert initialization function |
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//+------------------------------------------------------------------+
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int OnInit()
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{
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//--- Set magic number
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trade.SetExpertMagicNumber(MagicNumber);
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trade.SetDeviationInPoints(Slippage);
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trade.SetTypeFilling(ORDER_FILLING_FOK);
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//--- Cache symbol properties for performance
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g_point = SymbolInfoDouble(_Symbol, SYMBOL_POINT);
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g_digits = (int)SymbolInfoInteger(_Symbol, SYMBOL_DIGITS);
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g_minLot = SymbolInfoDouble(_Symbol, SYMBOL_VOLUME_MIN);
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g_maxLot = SymbolInfoDouble(_Symbol, SYMBOL_VOLUME_MAX);
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g_lotStep = SymbolInfoDouble(_Symbol, SYMBOL_VOLUME_STEP);
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g_tickValue = SymbolInfoDouble(_Symbol, SYMBOL_TRADE_TICK_VALUE);
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g_tickSize = SymbolInfoDouble(_Symbol, SYMBOL_TRADE_TICK_SIZE);
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g_marginInitial = SymbolInfoDouble(_Symbol, SYMBOL_MARGIN_INITIAL);
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//--- ⚡ Bolt: Pre-calculate lot size constants for performance
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g_riskMultiplier = RiskPercent / 100.0;
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g_lotValuePerUnit = (g_tickSize > 0) ? (g_tickValue / g_tickSize) : 0;
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g_invLotStep = (g_lotStep > 0) ? (1.0 / g_lotStep) : 0;
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g_lotRiskFactor = (g_lotValuePerUnit > 0) ? (g_riskMultiplier / g_lotValuePerUnit) : 0;
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g_invMarginInitial = (g_marginInitial > 0) ? (1.0 / g_marginInitial) : 0;
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//--- ⚡ Bolt: Pre-calculate SL/TP constants for performance
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g_swingSLBuffer = SwingSLBufferPoints * g_point;
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g_fixedSL = FixedSLPoints * g_point;
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g_fixedTP = FixedTPPoints * g_point;
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//--- ⚡ Bolt: Pre-calculate lot limits for performance
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g_finalMinLot = MathMax(g_minLot, MinLots);
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g_finalMaxLot = MathMin(g_maxLot, MaxLots);
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//--- Initialize indicators
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atrHandle = iATR(_Symbol, _Period, ATR_Period);
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if(atrHandle == INVALID_HANDLE) {
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Print("Error creating ATR indicator");
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return(INIT_FAILED);
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}
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//--- Initialize Donchian Channel (using iBands with 0 deviation)
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// Note: This approximates Donchian. For true Donchian, would need custom indicator
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// iBands(symbol, period, bands_period, bands_shift, deviation, applied_price)
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// Returns one handle, buffers: 0=base line, 1=upper band, 2=lower band
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donchianBandsHandle = iBands(_Symbol, _Period, DonchianPeriod, DonchianShift, 0, PRICE_CLOSE);
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if(donchianBandsHandle == INVALID_HANDLE) {
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Print("Error creating Donchian channel");
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return(INIT_FAILED);
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}
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//--- Initialize Lower TF EMAs (using Moving Average indicator)
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// iMA(symbol, period, ma_period, ma_shift, ma_method, applied_price)
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emaFastHandle = iMA(_Symbol, LowerTF, EMA_Fast_Period, 0, MODE_EMA, PRICE_CLOSE);
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emaSlowHandle = iMA(_Symbol, LowerTF, EMA_Slow_Period, 0, MODE_EMA, PRICE_CLOSE);
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if(emaFastHandle == INVALID_HANDLE || emaSlowHandle == INVALID_HANDLE) {
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Print("Error creating EMA indicators");
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return(INIT_FAILED);
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}
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Print("SMC Trend Breakout MTF EA initialized successfully");
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Print("Account: ", AccountInfoInteger(ACCOUNT_LOGIN));
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Print("Risk Percent: ", RiskPercent, "%");
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Print("Max Lots: ", MaxLots);
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return(INIT_SUCCEEDED);
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}
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//+------------------------------------------------------------------+
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//| Expert deinitialization function |
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//+------------------------------------------------------------------+
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void OnDeinit(const int reason)
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{
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//--- Release indicators
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if(atrHandle != INVALID_HANDLE) IndicatorRelease(atrHandle);
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if(donchianBandsHandle != INVALID_HANDLE) IndicatorRelease(donchianBandsHandle);
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if(emaFastHandle != INVALID_HANDLE) IndicatorRelease(emaFastHandle);
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if(emaSlowHandle != INVALID_HANDLE) IndicatorRelease(emaSlowHandle);
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Print("SMC Trend Breakout MTF EA deinitialized");
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}
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//+------------------------------------------------------------------+
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//| Expert tick function |
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//+------------------------------------------------------------------+
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void OnTick()
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{
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//--- Check if trading is enabled
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if(!EnableTrading) return;
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//--- ⚡ Bolt: Performance optimization - check for new bar before expensive operations.
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//--- Using iTime() is much faster than CopyRates() for a simple new bar check.
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datetime currentBarTime = iTime(_Symbol, _Period, 0);
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if(currentBarTime == 0) return; // History not ready
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if(currentBarTime == lastBarTime) return; // Exit if not a new bar
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//--- ⚡ Bolt: Defer terminal state checks until AFTER the new bar check.
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//--- TerminalInfoInteger and MQLInfoInteger are relatively expensive API calls.
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//--- Moving them here avoids thousands of redundant calls per hour on every price tick.
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if(!TerminalInfoInteger(TERMINAL_TRADE_ALLOWED)) {
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Print("AutoTrading is disabled in terminal settings");
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return;
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}
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if(!MQLInfoInteger(MQL_TRADE_ALLOWED)) {
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Print("AutoTrading is disabled in EA settings");
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return;
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}
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//--- ⚡ Bolt: Performance optimization - check if position already open BEFORE fetching data.
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//--- This avoids redundant CopyRates and CopyBuffer calls if we are already in a trade.
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if(PositionSelect(_Symbol)) {
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if(PositionGetInteger(POSITION_MAGIC) == MagicNumber) {
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positionOpen = true;
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lastBarTime = currentBarTime;
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return;
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}
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}
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positionOpen = false;
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lastBarTime = currentBarTime;
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//--- ⚡ Bolt: Consolidate CopyRates calls and use static buffer for performance.
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//--- Fetch 2 bars at once to avoid fetching unused data (index 2 was never used).
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static MqlRates rates[];
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static double upperBand[], lowerBand[], emaFast[], emaSlow[], atr[];
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static bool firstTick = true;
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if(firstTick)
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{
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ArraySetAsSeries(rates, true);
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ArraySetAsSeries(upperBand, true);
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ArraySetAsSeries(lowerBand, true);
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ArraySetAsSeries(emaFast, true);
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ArraySetAsSeries(emaSlow, true);
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ArraySetAsSeries(atr, true);
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firstTick = false;
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}
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if(CopyRates(_Symbol, _Period, 0, 2, rates) <= 0) return; // Fetch 2 bars
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//--- Get primary signal indicator values (Donchian)
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// ⚡ Bolt: Fetch 2 bars for both bands.
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if(CopyBuffer(donchianBandsHandle, 1, 0, 2, upperBand) <= 0) return;
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if(CopyBuffer(donchianBandsHandle, 2, 0, 2, lowerBand) <= 0) return;
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//--- Preliminary Donchian Breakout Detection (without confirmation)
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bool buyBreakout = (rates[1].close > upperBand[1] && rates[0].close > rates[1].close);
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bool sellBreakout = (rates[1].close < lowerBand[1] && rates[0].close < rates[1].close);
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bool buySignal = false;
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bool sellSignal = false;
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//--- ⚡ Bolt: Lazy load confirmation indicators only if a breakout occurs.
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if(buyBreakout || sellBreakout)
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{
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//--- Get Lower TF Confirmation indicator values
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// ⚡ Bolt: Only fetch 2 bars instead of 3 to improve efficiency.
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if(CopyBuffer(emaFastHandle, 0, 0, 2, emaFast) <= 0) return;
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if(CopyBuffer(emaSlowHandle, 0, 0, 2, emaSlow) <= 0) return;
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//--- Lower TF Confirmation: Check EMA direction
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bool bullishConfirmation = (emaFast[0] > emaSlow[0] && emaFast[1] > emaSlow[1]);
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bool bearishConfirmation = (emaFast[0] < emaSlow[0] && emaFast[1] < emaSlow[1]);
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//--- Final Signal Calculation
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buySignal = buyBreakout && bullishConfirmation;
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sellSignal = sellBreakout && bearishConfirmation;
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}
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//--- BOLT Optimization: Pass pre-fetched indicator values to trade functions to avoid redundant CopyBuffer() calls in a hot path.
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//--- Execute trades
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if(buySignal || sellSignal)
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{
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//--- ⚡ Bolt: Defer price and indicator assignments until a signal is confirmed.
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//--- Use SymbolInfoTick for efficient retrieval of current prices.
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MqlTick lastTick;
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if(!SymbolInfoTick(_Symbol, lastTick)) return;
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double ask = lastTick.ask;
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double bid = lastTick.bid;
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double latestUpperBand = upperBand[0];
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double latestLowerBand = lowerBand[0];
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//--- ⚡ Bolt: Defer ATR calculation until a signal is confirmed to avoid unnecessary calls.
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if(CopyBuffer(atrHandle, 0, 0, 1, atr) <= 0) return;
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//--- ⚡ Bolt: Performance optimization - fetch account info once before trade execution.
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double accountBalance = AccountInfoDouble(ACCOUNT_BALANCE);
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double accountEquity = AccountInfoDouble(ACCOUNT_EQUITY);
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double freeMargin = AccountInfoDouble(ACCOUNT_MARGIN_FREE);
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if(buySignal) {
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OpenBuyTrade(ask, atr[0], latestUpperBand, latestLowerBand, accountBalance, accountEquity, freeMargin);
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}
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else { // sellSignal must be true
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OpenSellTrade(bid, atr[0], latestUpperBand, latestLowerBand, accountBalance, accountEquity, freeMargin);
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}
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}
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}
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//+------------------------------------------------------------------+
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//| Open Buy Trade |
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//+------------------------------------------------------------------+
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void OpenBuyTrade(double ask, double latestAtr, double latestUpperBand, double latestLowerBand, double accountBalance, double accountEquity, double freeMargin)
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{
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//--- Calculate Stop Loss
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double sl = CalculateSL(ask, false, latestAtr);
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if(sl <= 0) return;
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//--- Calculate Take Profit
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double tp = CalculateTP(ask, sl, false, latestUpperBand, latestLowerBand);
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if(tp <= 0) return;
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//--- Normalize prices
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sl = NormalizeDouble(sl, g_digits);
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tp = NormalizeDouble(tp, g_digits);
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//--- Calculate lot size
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double lots = CalculateLots(ask - sl, accountBalance, accountEquity, freeMargin);
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if(lots <= 0) return;
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//--- Open buy position
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if(trade.Buy(lots, _Symbol, ask, sl, tp, TradeComment)) {
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Print("Buy order opened: Lots=", lots, " SL=", sl, " TP=", tp);
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if(ShowAlerts) Alert("SMC EA: Buy order opened on ", _Symbol);
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}
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else {
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Print("Error opening buy order: ", trade.ResultRetcodeDescription());
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}
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}
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//+------------------------------------------------------------------+
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//| Open Sell Trade |
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//+------------------------------------------------------------------+
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void OpenSellTrade(double bid, double latestAtr, double latestUpperBand, double latestLowerBand, double accountBalance, double accountEquity, double freeMargin)
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{
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//--- Calculate Stop Loss
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double sl = CalculateSL(bid, true, latestAtr);
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if(sl <= 0) return;
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//--- Calculate Take Profit
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double tp = CalculateTP(bid, sl, true, latestUpperBand, latestLowerBand);
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if(tp <= 0) return;
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//--- Normalize prices
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sl = NormalizeDouble(sl, g_digits);
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tp = NormalizeDouble(tp, g_digits);
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//--- Calculate lot size
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double lots = CalculateLots(sl - bid, accountBalance, accountEquity, freeMargin);
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if(lots <= 0) return;
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//--- Open sell position
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if(trade.Sell(lots, _Symbol, bid, sl, tp, TradeComment)) {
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Print("Sell order opened: Lots=", lots, " SL=", sl, " TP=", tp);
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if(ShowAlerts) Alert("SMC EA: Sell order opened on ", _Symbol);
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}
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else {
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Print("Error opening sell order: ", trade.ResultRetcodeDescription());
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}
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}
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//+------------------------------------------------------------------+
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//| Calculate Stop Loss |
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//+------------------------------------------------------------------+
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double CalculateSL(double price, bool isSell, double latestAtr)
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{
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double sl = 0;
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//--- ⚡ Bolt: Refactored for performance and DRY principle.
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//--- Merged SL_ATR and SL_SWING as their core logic is identical.
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if(SLMode == SL_ATR || SLMode == SL_SWING)
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{
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if(latestAtr <= 0) return 0; // Basic validation for ATR-based modes.
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double atrOffset = latestAtr * ATR_SL_Mult;
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double swingBuffer = (SLMode == SL_SWING) ? g_swingSLBuffer : 0;
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if(isSell) {
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sl = price + atrOffset + swingBuffer;
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} else {
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sl = price - atrOffset - swingBuffer;
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}
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}
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else if(SLMode == SL_FIXED_POINTS)
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{
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if(isSell) {
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sl = price + g_fixedSL;
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} else {
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sl = price - g_fixedSL;
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}
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}
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return sl;
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}
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//+------------------------------------------------------------------+
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//| Calculate Take Profit |
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//+------------------------------------------------------------------+
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double CalculateTP(double price, double sl, bool isSell, double latestUpperBand, double latestLowerBand)
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{
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double tp = 0;
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double slDistance = MathAbs(price - sl);
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if(TPMode == TP_RR) {
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if(isSell) {
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tp = price - (slDistance * RR);
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} else {
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tp = price + (slDistance * RR);
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}
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}
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else if(TPMode == TP_FIXED_POINTS) {
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if(isSell) {
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tp = price - g_fixedTP;
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} else {
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tp = price + g_fixedTP;
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}
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}
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else if(TPMode == TP_DONCHIAN_WIDTH) {
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//--- ⚡ Bolt: Bug fix for infinite recursion and performance improvement.
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//--- Use pre-fetched indicator values instead of new CopyBuffer calls.
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//--- If values are invalid, fall back *directly* to RR calculation to avoid recursion.
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if(latestUpperBand <= 0 || latestLowerBand <= 0) {
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// Fallback to RR directly
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if(isSell) {
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tp = price - (slDistance * RR);
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} else {
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tp = price + (slDistance * RR);
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}
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}
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else {
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double donchianWidth = (latestUpperBand - latestLowerBand) * DonchianTP_Mult;
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if(isSell) {
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tp = price - donchianWidth;
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} else {
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tp = price + donchianWidth;
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}
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}
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}
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return tp;
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}
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//+------------------------------------------------------------------+
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//| Calculate Lot Size |
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//+------------------------------------------------------------------+
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double CalculateLots(double slDistance, double accountBalance, double accountEquity, double freeMargin)
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{
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if(slDistance <= 0 || g_lotRiskFactor <= 0) return 0;
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//--- Get account balance/equity from parameters
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double balanceOrEquity = RiskUseEquity ? accountEquity : accountBalance;
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//--- ⚡ Bolt: Optimized lot calculation using pre-calculated constants.
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double lots = (balanceOrEquity * g_lotRiskFactor) / slDistance;
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//--- ⚡ Bolt: Apply margin constraints before final normalization to avoid redundant steps.
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if(RiskClampToFreeMargin && g_invMarginInitial > 0) {
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double maxMarginLots = freeMargin * g_invMarginInitial;
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if(lots > maxMarginLots) lots = maxMarginLots;
|
|
}
|
|
|
|
//--- ⚡ Bolt: Consolidated normalization and clamping into a single execution path.
|
|
lots = MathFloor(lots * g_invLotStep) * g_lotStep;
|
|
lots = MathMax(g_finalMinLot, MathMin(lots, g_finalMaxLot));
|
|
|
|
return NormalizeDouble(lots, 2);
|
|
}
|
|
|
|
//+------------------------------------------------------------------+
|