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Toh4iem9
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//+------------------------------------------------------------------+
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//| PivotPoint_Calculator.mqh |
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//| Engine for calculating various Pivot Point types. |
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//| Copyright 2026, xxxxxxxx |
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//+------------------------------------------------------------------+
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#property copyright "Copyright 2026, xxxxxxxx"
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enum ENUM_PIVOT_TYPE
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{
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PIVOT_CLASSIC,
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PIVOT_FIBONACCI,
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PIVOT_WOODIE,
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PIVOT_CAMARILLA,
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PIVOT_DEMARK
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};
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enum ENUM_PIVOT_SOURCE
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{
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PIVOT_SRC_STANDARD,
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PIVOT_SRC_HEIKIN_ASHI
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};
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struct PivotLevels
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{
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double PP;
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double R1, R2, R3;
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double S1, S2, S3;
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};
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//+==================================================================+
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//| CLASS: CPivotPointCalculator |
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//+==================================================================+
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class CPivotPointCalculator
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{
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protected:
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ENUM_PIVOT_TYPE m_type;
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ENUM_PIVOT_SOURCE m_source;
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// Cache for optimization
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datetime m_last_calc_time;
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PivotLevels m_last_levels;
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public:
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CPivotPointCalculator(void) : m_last_calc_time(0) {};
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virtual ~CPivotPointCalculator(void) {};
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bool Init(ENUM_PIVOT_TYPE type, ENUM_PIVOT_SOURCE source);
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bool CalculateLevels(datetime current_time, ENUM_TIMEFRAMES tf, PivotLevels &out_levels);
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private:
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void GetHTFData(datetime time, ENUM_TIMEFRAMES tf, double &open, double &high, double &low, double &close);
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};
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//+------------------------------------------------------------------+
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//| Init |
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//+------------------------------------------------------------------+
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bool CPivotPointCalculator::Init(ENUM_PIVOT_TYPE type, ENUM_PIVOT_SOURCE source)
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{
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m_type = type;
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m_source = source;
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return true;
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}
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//+------------------------------------------------------------------+
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//| Calculate Levels |
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//+------------------------------------------------------------------+
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bool CPivotPointCalculator::CalculateLevels(datetime current_time, ENUM_TIMEFRAMES tf, PivotLevels &out_levels)
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{
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// 1. Identify the start time of the HTF bar containing current_time
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datetime htf_time = iTime(_Symbol, tf, iBarShift(_Symbol, tf, current_time));
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// Optimization: If we already calculated for this HTF bar, return cached
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if(htf_time == m_last_calc_time && m_last_calc_time != 0)
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{
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out_levels = m_last_levels;
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return true;
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}
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// 2. We need the PREVIOUS completed HTF bar data
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int htf_index = iBarShift(_Symbol, tf, current_time) + 1;
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double O, H, L, C;
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// FIX 1: Use arrays for Copy functions
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double o_arr[1], h_arr[1], l_arr[1], c_arr[1];
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if(CopyOpen(_Symbol, tf, htf_index, 1, o_arr)<=0 ||
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CopyHigh(_Symbol, tf, htf_index, 1, h_arr)<=0 ||
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CopyLow(_Symbol, tf, htf_index, 1, l_arr)<=0 ||
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CopyClose(_Symbol, tf, htf_index, 1, c_arr)<=0)
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return false;
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O = o_arr[0];
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H = h_arr[0];
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L = l_arr[0];
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C = c_arr[0];
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// Heikin Ashi Transformation if requested
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if(m_source == PIVOT_SRC_HEIKIN_ASHI)
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{
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double ha_close = (O + H + L + C) / 4.0;
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// FIX 3: Removed unused variables prev_o, prev_c
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double po_arr[1], pc_arr[1];
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CopyOpen(_Symbol, tf, htf_index+1, 1, po_arr);
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CopyClose(_Symbol, tf, htf_index+1, 1, pc_arr);
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double ha_open = (po_arr[0] + pc_arr[0]) / 2.0;
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double ha_high = MathMax(H, MathMax(ha_open, ha_close));
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double ha_low = MathMin(L, MathMin(ha_open, ha_close));
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O = ha_open;
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H = ha_high;
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L = ha_low;
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C = ha_close;
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}
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// 3. Calculate Formulas
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double range = H - L;
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switch(m_type)
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{
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case PIVOT_CLASSIC:
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out_levels.PP = (H + L + C) / 3.0;
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out_levels.R1 = 2 * out_levels.PP - L;
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out_levels.S1 = 2 * out_levels.PP - H;
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out_levels.R2 = out_levels.PP + range;
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out_levels.S2 = out_levels.PP - range;
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out_levels.R3 = H + 2 * (out_levels.PP - L);
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out_levels.S3 = L - 2 * (H - out_levels.PP);
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break;
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case PIVOT_FIBONACCI:
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out_levels.PP = (H + L + C) / 3.0;
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out_levels.R1 = out_levels.PP + 0.382 * range;
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out_levels.S1 = out_levels.PP - 0.382 * range;
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out_levels.R2 = out_levels.PP + 0.618 * range;
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out_levels.S2 = out_levels.PP - 0.618 * range;
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out_levels.R3 = out_levels.PP + 1.000 * range;
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out_levels.S3 = out_levels.PP - 1.000 * range;
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break;
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case PIVOT_WOODIE:
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out_levels.PP = (H + L + 2 * C) / 4.0;
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out_levels.R1 = 2 * out_levels.PP - L;
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out_levels.S1 = 2 * out_levels.PP - H;
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out_levels.R2 = out_levels.PP + range;
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out_levels.S2 = out_levels.PP - range;
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out_levels.R3 = H + 2 * (out_levels.PP - L);
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out_levels.S3 = L - 2 * (H - out_levels.PP);
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break;
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case PIVOT_CAMARILLA:
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out_levels.PP = (H + L + C) / 3.0;
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out_levels.R3 = C + range * 1.1 / 4.0;
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out_levels.S3 = C - range * 1.1 / 4.0;
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out_levels.R2 = C + range * 1.1 / 6.0;
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out_levels.S2 = C - range * 1.1 / 6.0;
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out_levels.R1 = C + range * 1.1 / 12.0;
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out_levels.S1 = C - range * 1.1 / 12.0;
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break;
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case PIVOT_DEMARK:
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{
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// FIX 2: Added braces for scope
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double X;
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if(C < O)
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X = H + 2 * L + C;
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else
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if(C > O)
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X = 2 * H + L + C;
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else
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X = H + L + 2 * C;
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out_levels.PP = X / 4.0;
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out_levels.R1 = X / 2.0 - L;
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out_levels.S1 = X / 2.0 - H;
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out_levels.R2 = 0;
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out_levels.S2 = 0;
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out_levels.R3 = 0;
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out_levels.S3 = 0;
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break;
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}
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}
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// Update Cache
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m_last_calc_time = htf_time;
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m_last_levels = out_levels;
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return true;
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}
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//+------------------------------------------------------------------+
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//| Get HTF Data (Helper) |
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//+------------------------------------------------------------------+
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void CPivotPointCalculator::GetHTFData(datetime time, ENUM_TIMEFRAMES tf, double &open, double &high, double &low, double &close)
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{
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// Implemented inline above
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}
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//+------------------------------------------------------------------+
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