Mastering the VR-Moving EA for MetaTrader 5: Your Guide to Smarter Trading

The VR-Moving Expert Advisor (EA) leverages the Moving Average indicator, with all the necessary trading functions neatly organized in the CMoving trading class housed in a dedicated file called Moving.mqh.

Input Parameters

Magic Number - unique identifier for the EA;
Lots - volume of the position (specify a volume over zero or risk size over zero);
Risk - risk percentage of free margin per trade (again, position volume over zero or risk size over zero can be specified);
MA: Period - Moving Average indicator timeframe;
MA: Averaging Period - the length for the Moving Average calculation;
MA: Horizontal Shift - horizontal displacement of the Moving Average;
MA: Smoothing Type - method for averaging;
MA: Type of Price - price type used for the indicator calculation;
Take Profit - target profit level for open positions;
Lot Multiplier for Series of Positions - increasing volume for a series of trades;
Distance from Moving Average - set distance from the Moving Average indicator;
Additive in Presence of General Profit - additional space if there’s overall profit.

The EA operates on a swing trading principle, offering the flexibility to increase lot sizes. Here’s the strategy breakdown:

If the price is above the Moving Average at a specified Distance from Moving Average, we open a BUY position;
If the price dips below the Moving Average at the same Distance from Moving Average, we open a SELL position with matching lot size;
If the price rises from the highest BUY position beyond the Distance from Moving Average, we initiate another BUY;
If the price drops from the lowest BUY position past the Distance from Moving Average, we initiate another SELL.

Class CMoving Overview

Setting Parameters
Initialization	Initial setup includes: Symbol - the market symbol the EA will trade; Magic - unique EA identifier; Slippage - acceptable slippage values.
GetFlag	This checks the initialization flag status, a helpful function for the EA’s internal m_init variable in class CMoving.
LotsOrRisk	Determining how position lots are calculated: either manually (if lots is above zero) or as a percentage of free margin per trade (if risk is above zero).
CreateMA	Establishes the Moving Average indicator.
TakeProfit	Sets the Take Profit parameters.
Multiplier	Defines the parameter for increasing lot size.
DistanceMA	Sets the distance from the Moving Average indicator.
ProfitPlus	Defines the additional margin for overall profit.
Main Function
Processing	The main function where all calculations take place.
Class Functions (Protected Access)
RefreshRates	Updates quotes for the symbol.
CheckVolumeValue	Validates the entered position volume (used during manual entry).
IsFillingTypeAllowed	Checks the order filling mode.
iMAGet	Fetches Moving Average values for a bar with the specified index.
CalculateAllPositions	Retrieves information on positions: count_buys - number of BUY positions; price_highest_buy - highest price of BUY positions; price_lowest_buy - lowest price of BUY positions; lot_highest_buy - volume of the largest BUY position; lot_lowest_buy - volume of the smallest BUY position; total_lots_buy - total volume of all BUY positions; count_sells - number of SELL positions; price_lowest_sell - lowest price of SELL positions; price_highest_sell - highest price of SELL positions; lot_lowest_sell - volume of the smallest SELL position; lot_highest_sell - volume of the largest SELL position; total_lots_sell - total volume of all SELL positions.
Prices	Fetches reference prices for BUY and SELL positions, considering the set Distance from Moving Average.
LotCheck	Validates and normalizes position volume (applies during manual entry).
OpenBuy	Initiates a BUY position.
OpenSell	Initiates a SELL position.
PrintResult	Displays results of the trading operation after opening a position.
SetTakeProfit	Establishes the Take Profit level for positions or removes all Take Profit and Stop Loss levels (if delete_take_profit is set to "true").
CompareDoubles	Compares two real numbers to check for equality.
AveragedTakeProfit	Calculates and sets a unified Take Profit level for a specific type of position pos_type.