new files added

2026-07-27 20:47:44 +00:00 · 2025-08-12 10:23:11 +02:00
parent 78d3ee6e77
commit c0e8ddef00
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+//+------------------------------------------------------------------+
+//|                                                    HA_Tools.mqh  |
+//|                       A toolkit for Heiken Ashi calculations     |
+//|                                        Copyright 2025, xxxxxxxx  |
+//+------------------------------------------------------------------+
+#property copyright "Copyright 2025, xxxxxxxx"
+#property link      ""
+
+#include <Object.mqh>
+
+//+------------------------------------------------------------------+
+//| Class CHA_Calculator.                                            |
+//| Purpose: Encapsulates the logic for calculating Heiken Ashi      |
+//|          candle values from standard OHLC data. This class       |
+//|          manages its own data buffers.                           |
+//+------------------------------------------------------------------+
+class CHA_Calculator : public CObject
+  {
+public:
+   //--- Public Data Members ---
+   // These buffers store the calculated Heiken Ashi values and are
+   // publicly accessible for indicators to use in their calculations.
+   double            ha_open[];
+   double            ha_high[];
+   double            ha_low[];
+   double            ha_close[];
+
+public:
+   //--- Constructor and Destructor
+                     CHA_Calculator(void);
+                    ~CHA_Calculator(void);
+
+   //--- Public Interface
+   bool              Calculate(const int rates_total,
+                               const int prev_calculated,
+                               const double &open[],
+                               const double &high[],
+                               const double &low[],
+                               const double &close[]);
+  };
+
+//+------------------------------------------------------------------+
+//| Constructor                                                      |
+//+------------------------------------------------------------------+
+CHA_Calculator::CHA_Calculator(void)
+  {
+//--- No specific initialization required in the constructor
+  }
+//+------------------------------------------------------------------+
+//| Destructor                                                       |
+//+------------------------------------------------------------------+
+CHA_Calculator::~CHA_Calculator(void)
+  {
+//--- No specific deinitialization required in the destructor
+  }
+
+//+------------------------------------------------------------------+
+//| Calculates Heiken Ashi values for the entire history.            |
+//| INPUT:  rates_total     - The total number of bars available.    |
+//|         prev_calculated - The number of bars calculated previously.|
+//|         open[], high[], low[], close[] - Standard price arrays.  |
+//| RETURN: true if calculation was successful, false otherwise.     |
+//+------------------------------------------------------------------+
+bool CHA_Calculator::Calculate(const int rates_total,
+                               const int prev_calculated,
+                               const double &open[],
+                               const double &high[],
+                               const double &low[],
+                               const double &close[])
+  {
+//--- Ensure internal buffers are sized correctly
+   if(ArrayResize(ha_open, rates_total) < 0 ||
+      ArrayResize(ha_high, rates_total) < 0 ||
+      ArrayResize(ha_low, rates_total) < 0 ||
+      ArrayResize(ha_close, rates_total) < 0)
+     {
+      Print("CHA_Calculator: Error resizing Heiken Ashi buffers!");
+      return false;
+     }
+
+//--- Determine the starting bar for calculation to optimize performance
+   int start_pos = 0;
+   if(prev_calculated > 1)
+     {
+      // On subsequent calls, only calculate new bars
+      start_pos = prev_calculated - 1;
+     }
+
+//--- Calculate the very first HA bar (index 0) on the first run
+   if(start_pos == 0)
+     {
+      ha_open[0]  = (open[0] + close[0]) / 2.0;
+      ha_close[0] = (open[0] + high[0] + low[0] + close[0]) / 4.0;
+      // For the first bar, HA High/Low are the same as the regular High/Low
+      ha_high[0]  = high[0];
+      ha_low[0]   = low[0];
+      start_pos = 1; // Set the starting position for the main loop to the next bar
+     }
+
+//--- Main loop to calculate all subsequent HA bars
+   for(int i = start_pos; i < rates_total; i++)
+     {
+      // HA Open is the midpoint of the previous HA bar's body
+      ha_open[i]  = (ha_open[i-1] + ha_close[i-1]) / 2.0;
+      // HA Close is the average price of the current regular bar
+      ha_close[i] = (open[i] + high[i] + low[i] + close[i]) / 4.0;
+      // HA High is the maximum of the current regular High, HA Open, and HA Close
+      ha_high[i]  = MathMax(high[i], MathMax(ha_open[i], ha_close[i]));
+      // HA Low is the minimum of the current regular Low, HA Open, and HA Close
+      ha_low[i]   = MathMin(low[i], MathMin(ha_open[i], ha_close[i]));
+     }
+
+   return true;
+  }
+//+------------------------------------------------------------------+
+//+------------------------------------------------------------------+