Mql5-Micro-Grid-Scalper/grid-scalper

//+------------------------------------------------------------------+
//|                                              AxiumMicroScalper.mq5|
//|                                  Copyright 2026, Quant Dev Team |
//+------------------------------------------------------------------+
#property copyright "Copyright 2026"
#property link      ""
#property version   "1.00"
#property strict

// Include Trade Library
#include <Trade\Trade.mqh>
#include <Trade\PositionInfo.mqh>

//--- Input Parameters
input group "=== Strategy Settings ==="
input double   InpLotSize          = 0.01;      // Base Lot Size
input double   InpBasketTargetUSD  = 1.50;      // Basket Profit Target ($ per cycle)
input int      InpGridDistance     = 15;        // Minimum Distance Between Grid Trades (Points)
input int      InpMaxPositions     = 15;        // Maximum Concurrent Open Positions
input ulong    InpMagicNumber      = 888123;    // EA Magic Number
input ulong    InpSlippage         = 10;        // Max Slippage Points

//--- Global Objects
CTrade         m_trade;
CPositionInfo  m_position;

//+------------------------------------------------------------------+
//| Expert initialization function                                   |
//+------------------------------------------------------------------+
int OnInit()
{
   m_trade.SetExpertMagicNumber(InpMagicNumber);
   m_trade.SetDeviationInPoints(InpSlippage);
   m_trade.SetMarginMode();
   m_trade.SetTypeFillingBySymbol(_Symbol);

   return(INIT_SUCCEEDED);
}

//+------------------------------------------------------------------+
//| Expert deinitialization function                                 |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)
{
}

//+------------------------------------------------------------------+
//| Expert tick function                                             |
//+------------------------------------------------------------------+
void OnTick()
{
   // 1. Calculate Floating Basket Profit & Count Open Positions
   double currentBasketProfit = 0.0;
   int buyCount = 0;
   int sellCount = 0;
   
   double lastBuyPrice = 0.0;
   double lastSellPrice = 0.0;

   int totalPositions = 0;

   for(int i = PositionsTotal() - 1; i >= 0; i--)
   {
      if(m_position.SelectByIndex(i))
      {
         if(m_position.Symbol() == _Symbol && m_position.Magic() == InpMagicNumber)
         {
            totalPositions++;
            currentBasketProfit += m_position.Profit() + m_position.Swap() + m_position.Commission();

            if(m_position.PositionType() == POSITION_TYPE_BUY)
            {
               buyCount++;
               if(lastBuyPrice == 0.0 || m_position.PriceOpen() < lastBuyPrice)
                  lastBuyPrice = m_position.PriceOpen();
            }
            else if(m_position.PositionType() == POSITION_TYPE_SELL)
            {
               sellCount++;
               if(lastSellPrice == 0.0 || m_position.PriceOpen() > lastSellPrice)
                  lastSellPrice = m_position.PriceOpen();
            }
         }
      }
   }

   // 2. Execution Logic: Basket Profit Target Reached -> Close All Positions Immediately
   if(totalPositions > 0 && currentBasketProfit >= InpBasketTargetUSD)
   {
      CloseAllPositions();
      return;
   }

   // 3. Grid Entry Execution
   if(totalPositions >= InpMaxPositions)
      return;

   double ask = SymbolInfoDouble(_Symbol, SYMBOL_ASK);
   double bid = SymbolInfoDouble(_Symbol, SYMBOL_BID);
   double point = SymbolInfoDouble(_Symbol, SYMBOL_POINT);

   // Initial cycle entry (opens buy/sell momentum starter if no positions exist)
   if(totalPositions == 0)
   {
      m_trade.Buy(InpLotSize, _Symbol, ask, 0, 0, "Axium Start Buy");
      m_trade.Sell(InpLotSize, _Symbol, bid, 0, 0, "Axium Start Sell");
      return;
   }

   // Stack BUY positions if price dips by Grid Distance
   if(buyCount > 0 && (lastBuyPrice - ask) >= (InpGridDistance * point))
   {
      m_trade.Buy(InpLotSize, _Symbol, ask, 0, 0, "Axium Grid Buy");
   }

   // Stack SELL positions if price rallies by Grid Distance
   if(sellCount > 0 && (bid - lastSellPrice) >= (InpGridDistance * point))
   {
      m_trade.Sell(InpLotSize, _Symbol, bid, 0, 0, "Axium Grid Sell");
   }
}

//+------------------------------------------------------------------+
//| Fast Basket Closure Routine                                      |
//+------------------------------------------------------------------+
void CloseAllPositions()
{
   for(int i = PositionsTotal() - 1; i >= 0; i--)
   {
      if(m_position.SelectByIndex(i))
      {
         if(m_position.Symbol() == _Symbol && m_position.Magic() == InpMagicNumber)
         {
            m_trade.PositionClose(m_position.Ticket());
         }
      }
   }
}
//+------------------------------------------------------------------+