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Include/MyIncludes/KAMA_Acceleration_Calculator.mqh

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+//+------------------------------------------------------------------+
+//|                                  KAMA_Acceleration_Calculator.mqh|
+//|                                          Copyright 2026, xxxxxxxx|
+//+------------------------------------------------------------------+
+#property copyright "Copyright 2026, xxxxxxxx"
+#property version   "1.00" // Performance optimized second derivative of KAMA
+#property description "Calculator engine for analyzing the acceleration (2nd derivative) of KAMA."
+
+#ifndef KAMA_ACCELERATION_CALCULATOR_MQH
+#define KAMA_ACCELERATION_CALCULATOR_MQH
+
+#include <MyIncludes\KAMA_Calculator.mqh>
+
+//+==================================================================+
+//|             CLASS: CKamaAccelerationCalculator                   |
+//+==================================================================+
+class CKamaAccelerationCalculator
+  {
+private:
+   CKamaCalculator   m_kama_calc;
+   double            m_kama_buffer[];
+   int               m_er_period;
+
+public:
+                     CKamaAccelerationCalculator(void);
+                    ~CKamaAccelerationCalculator(void) {};
+
+   bool              Init(const int er_p, const int fast_p, const int slow_p, const ENUM_APPLIED_PRICE_HA_ALL source);
+   void              Calculate(const int rates_total,
+                               const int prev_calculated,
+                               const double &open[],
+                               const double &high[],
+                               const double &low[],
+                               const double &close[],
+                               double &accel_buffer[],
+                               double &color_buffer[],
+                               const double threshold);
+  };
+
+//+------------------------------------------------------------------+
+//| Constructor                                                      |
+//+------------------------------------------------------------------+
+CKamaAccelerationCalculator::CKamaAccelerationCalculator(void) : m_er_period(10)
+  {
+   ArraySetAsSeries(m_kama_buffer, false);
+  }
+
+//+------------------------------------------------------------------+
+//| Initialization                                                   |
+//+------------------------------------------------------------------+
+bool CKamaAccelerationCalculator::Init(const int er_p, const int fast_p, const int slow_p, const ENUM_APPLIED_PRICE_HA_ALL source)
+  {
+   m_er_period = (er_p < 1) ? 1 : er_p;
+   return m_kama_calc.Init(er_p, fast_p, slow_p, source);
+  }
+
+//+------------------------------------------------------------------+
+//| Incremental Calculation of 2nd Derivative & Thermal Matrix       |
+//+------------------------------------------------------------------+
+void CKamaAccelerationCalculator::Calculate(const int rates_total,
+      const int prev_calculated,
+      const double &open[],
+      const double &high[],
+      const double &low[],
+      const double &close[],
+      double &accel_buffer[],
+      double &color_buffer[],
+      const double threshold)
+  {
+   if(rates_total <= m_er_period + 2)
+      return;
+
+// Resize persistent KAMA buffer
+   if(ArraySize(m_kama_buffer) != rates_total)
+     {
+      ArrayResize(m_kama_buffer, rates_total);
+      ArraySetAsSeries(m_kama_buffer, false);
+     }
+
+// 1. Calculate Underlying KAMA Values
+   m_kama_calc.Calculate(rates_total, prev_calculated, open, high, low, close, m_kama_buffer);
+
+// 2. Clean initial invalid bars on fresh calculation
+   if(prev_calculated == 0)
+     {
+      for(int i = 0; i <= m_er_period + 1; i++)
+        {
+         accel_buffer[i] = 0.0;
+         color_buffer[i] = 0.0; // Index 0: clrGray
+        }
+     }
+
+   int start_index = (prev_calculated == 0) ? (m_er_period + 2) : (prev_calculated - 1);
+   if(start_index <= m_er_period + 1)
+      start_index = m_er_period + 2;
+
+// 3. Acceleration Loop: Accel = KAMA[t] - 2*KAMA[t-1] + KAMA[t-2]
+   for(int i = start_index; i < rates_total; i++)
+     {
+      if(m_kama_buffer[i] == EMPTY_VALUE || m_kama_buffer[i - 1] == EMPTY_VALUE || m_kama_buffer[i - 2] == EMPTY_VALUE)
+        {
+         accel_buffer[i] = 0.0;
+         color_buffer[i] = 0.0;
+         continue;
+        }
+
+      accel_buffer[i] = m_kama_buffer[i] - 2.0 * m_kama_buffer[i - 1] + m_kama_buffer[i - 2];
+
+      double current_accel  = accel_buffer[i];
+      double previous_accel = accel_buffer[i - 1];
+
+      // 4. Symmetrical Thermal 5-Zone Momentum Matrix
+      if(MathAbs(current_accel) <= threshold)
+        {
+         color_buffer[i] = 0.0; // Index 0: clrGray (Neutral / Low Energy Consolidation)
+        }
+      else
+         if(current_accel > 0.0)
+           {
+            if(current_accel > previous_accel)
+               color_buffer[i] = 1.0; // Index 1: clrDodgerBlue (Strong Bullish Acceleration)
+            else
+               color_buffer[i] = 2.0; // Index 2: clrLightSkyBlue (Weak Bullish Deceleration)
+           }
+         else // current_accel < 0.0
+           {
+            if(current_accel < previous_accel)
+               color_buffer[i] = 3.0; // Index 3: clrCrimson (Strong Bearish Acceleration)
+            else
+               color_buffer[i] = 4.0; // Index 4: clrCoral (Weak Bearish Deceleration)
+           }
+     }
+  }
+
+#endif // KAMA_ACCELERATION_CALCULATOR_MQH
+//+------------------------------------------------------------------+