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feat: Pure Price-Action Wicks, Embedded ATR & Zero-Heap Execution
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Toh4iem9
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//+------------------------------------------------------------------+
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//| RejectionBlock_Calculator.mqh |
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//| Headless Engine for Institutional Rejection Blocks |
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//| Copyright 2026, xxxxxxxx|
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//+------------------------------------------------------------------+
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#property copyright "Copyright 2026, xxxxxxxx"
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#property version "2.10" // Enterprise Edition: Pure Price-Action Wicks, Embedded ATR & Zero-Heap Execution
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#property description "Mathematical engine for Rejection Wicks, Liquidity Sweeps, and Order Block tracking."
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#ifndef REJECTION_BLOCK_CALCULATOR_MQH
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#define REJECTION_BLOCK_CALCULATOR_MQH
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#include <MyIncludes\ATR_Calculator.mqh>
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//--- Structure for Tracking Rejection Block Lifecycle
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struct SRejectionBlock
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{
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int id;
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datetime time_start;
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datetime time_end;
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double top;
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double bottom;
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double mid;
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bool is_bull;
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int bar_formed;
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bool armed;
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bool touched;
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bool invalidated;
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datetime time_invalidated;
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};
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//+==================================================================+
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//| CLASS: CRejectionBlock_Calculator |
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//+==================================================================+
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class CRejectionBlock_Calculator
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{
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private:
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int m_swing_len;
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double m_min_wick_pct;
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double m_wick_atr_mult;
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int m_atr_len;
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bool m_sweep_filter;
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int m_max_blocks;
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// Embedded Calculation Engine
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CATRCalculator *m_atr_engine;
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// Persistent Working Buffers
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double m_atr_buffer[];
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SRejectionBlock m_blocks[];
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int m_block_count;
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int m_id_counter;
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double m_last_swing_high;
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double m_last_swing_low;
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void AddBlock(const double zone_top, const double zone_bottom, const bool is_bull,
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const datetime start_time, const datetime end_time, const int bar_idx);
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public:
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CRejectionBlock_Calculator(void);
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~CRejectionBlock_Calculator(void);
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bool Init(const int swing_len, const double min_wick_pct, const double wick_atr_mult,
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const int atr_len, const bool sweep_filter, const int max_blocks);
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void Calculate(const int rates_total, const int prev_calculated,
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const datetime &time[], const double &open[], const double &high[],
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const double &low[], const double &close[],
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double &out_bull_sig[], double &out_bear_sig[]);
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int GetBlockCount(void) const { return m_block_count; }
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bool GetBlock(const int index, SRejectionBlock &out_block) const;
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void Reset(void);
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};
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//+------------------------------------------------------------------+
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//| Constructor |
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//+------------------------------------------------------------------+
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CRejectionBlock_Calculator::CRejectionBlock_Calculator(void) :
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m_swing_len(10),
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m_min_wick_pct(50.0),
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m_wick_atr_mult(0.5),
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m_atr_len(14),
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m_sweep_filter(false),
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m_max_blocks(10),
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m_atr_engine(NULL),
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m_block_count(0),
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m_id_counter(0),
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m_last_swing_high(WRONG_VALUE),
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m_last_swing_low(WRONG_VALUE)
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{
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ArraySetAsSeries(m_atr_buffer, false);
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}
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//+------------------------------------------------------------------+
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//| Destructor |
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//+------------------------------------------------------------------+
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CRejectionBlock_Calculator::~CRejectionBlock_Calculator(void)
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{
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if(CheckPointer(m_atr_engine) != POINTER_INVALID)
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{
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delete m_atr_engine;
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m_atr_engine = NULL;
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}
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ArrayFree(m_atr_buffer);
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ArrayFree(m_blocks);
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}
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//+------------------------------------------------------------------+
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//| Initialization |
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//+------------------------------------------------------------------+
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bool CRejectionBlock_Calculator::Init(const int swing_len, const double min_wick_pct, const double wick_atr_mult,
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const int atr_len, const bool sweep_filter, const int max_blocks)
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{
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m_swing_len = (swing_len < 1) ? 1 : swing_len;
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m_min_wick_pct = (min_wick_pct < 0.0) ? 0.0 : min_wick_pct;
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m_wick_atr_mult = (wick_atr_mult < 0.0) ? 0.0 : wick_atr_mult;
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m_atr_len = (atr_len < 1) ? 14 : atr_len;
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m_sweep_filter = sweep_filter;
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m_max_blocks = (max_blocks < 1) ? 10 : max_blocks;
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if(CheckPointer(m_atr_engine) != POINTER_INVALID)
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delete m_atr_engine;
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m_atr_engine = new CATRCalculator();
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if(CheckPointer(m_atr_engine) == POINTER_INVALID || !m_atr_engine.Init(m_atr_len, ATR_POINTS))
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return false;
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Reset();
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return true;
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}
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//+------------------------------------------------------------------+
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//| Reset Internal State |
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//+------------------------------------------------------------------+
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void CRejectionBlock_Calculator::Reset(void)
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{
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m_block_count = 0;
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m_id_counter = 0;
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m_last_swing_high = WRONG_VALUE;
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m_last_swing_low = WRONG_VALUE;
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ArrayResize(m_blocks, 0);
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}
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//+------------------------------------------------------------------+
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//| Internal: Add New Block to Ring Buffer Pool |
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//+------------------------------------------------------------------+
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void CRejectionBlock_Calculator::AddBlock(const double zone_top, const double zone_bottom, const bool is_bull,
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const datetime start_time, const datetime end_time, const int bar_idx)
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{
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m_id_counter++;
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int size = m_block_count;
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ArrayResize(m_blocks, size + 1);
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m_blocks[size].id = m_id_counter;
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m_blocks[size].time_start = start_time;
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m_blocks[size].time_end = end_time;
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m_blocks[size].top = zone_top;
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m_blocks[size].bottom = zone_bottom;
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m_blocks[size].mid = (zone_top + zone_bottom) * 0.5;
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m_blocks[size].is_bull = is_bull;
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m_blocks[size].bar_formed = bar_idx;
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m_blocks[size].armed = false;
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m_blocks[size].touched = false;
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m_blocks[size].invalidated = false;
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m_blocks[size].time_invalidated = 0;
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m_block_count++;
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// Maintain user maximum limit (FIFO Ring eviction)
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if(m_block_count > m_max_blocks)
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{
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for(int j = 0; j < m_block_count - 1; j++)
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m_blocks[j] = m_blocks[j + 1];
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m_block_count--;
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ArrayResize(m_blocks, m_block_count);
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}
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}
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//+------------------------------------------------------------------+
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//| Main Incremental Execution Loop |
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//+------------------------------------------------------------------+
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void CRejectionBlock_Calculator::Calculate(const int rates_total, const int prev_calculated,
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const datetime &time[], const double &open[], const double &high[],
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const double &low[], const double &close[],
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double &out_bull_sig[], double &out_bear_sig[])
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{
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int L = m_swing_len;
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int min_bars = MathMax(L * 2 + 1, m_atr_len + 2);
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if(rates_total < min_bars || !m_atr_engine)
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return;
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// 1. Calculate Pipelined ATR Baseline
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m_atr_engine.Calculate(rates_total, prev_calculated, open, high, low, close, m_atr_buffer);
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int start = (prev_calculated > 0) ? (prev_calculated - 1) : (2 * L);
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if(prev_calculated == 0)
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{
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Reset();
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for(int i = 0; i < rates_total; i++)
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{
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out_bull_sig[i] = EMPTY_VALUE;
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out_bear_sig[i] = EMPTY_VALUE;
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}
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}
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datetime curr_time = time[rates_total - 1];
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// 2. Main Sequential Evaluation
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for(int i = start; i < rates_total; i++)
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{
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out_bull_sig[i] = EMPTY_VALUE;
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out_bear_sig[i] = EMPTY_VALUE;
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bool is_confirmed = (i < rates_total - 1);
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int p = i - L; // Pivot candidate index
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if(is_confirmed && p >= L)
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{
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// A) Swing High Rejection Wick Inspection
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bool is_p_high = true;
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double p_hi = high[p];
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for(int j = 1; j <= L; j++)
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{
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if(high[p - j] >= p_hi || high[p + j] >= p_hi)
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{
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is_p_high = false;
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break;
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}
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}
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if(is_p_high)
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{
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double range = high[p] - low[p];
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double body_top = MathMax(open[p], close[p]);
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double upper_wick= high[p] - body_top;
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double atr_val = m_atr_buffer[p];
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bool wick_pct_ok = (upper_wick > 0.0 && range > 0.0 && (upper_wick / range * 100.0) >= m_min_wick_pct);
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bool wick_atr_ok = (m_wick_atr_mult == 0.0 || upper_wick >= m_wick_atr_mult * atr_val);
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bool sweep_ok = (!m_sweep_filter || (m_last_swing_high != WRONG_VALUE && high[p] > m_last_swing_high && close[p] < m_last_swing_high));
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if(wick_pct_ok && wick_atr_ok && sweep_ok)
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{
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AddBlock(high[p], body_top, false, time[p], time[i], i);
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out_bear_sig[i] = high[p] + (atr_val * 0.3); // Signal Arrow
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}
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m_last_swing_high = high[p];
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}
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// B) Swing Low Rejection Wick Inspection
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bool is_p_low = true;
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double p_lo = low[p];
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for(int j = 1; j <= L; j++)
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{
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if(low[p - j] <= p_lo || low[p + j] <= p_lo)
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{
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is_p_low = false;
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break;
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}
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}
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if(is_p_low)
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{
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double range = high[p] - low[p];
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double body_bottom = MathMin(open[p], close[p]);
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double lower_wick = body_bottom - low[p];
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double atr_val = m_atr_buffer[p];
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bool wick_pct_ok = (lower_wick > 0.0 && range > 0.0 && (lower_wick / range * 100.0) >= m_min_wick_pct);
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bool wick_atr_ok = (m_wick_atr_mult == 0.0 || lower_wick >= m_wick_atr_mult * atr_val);
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bool sweep_ok = (!m_sweep_filter || (m_last_swing_low != WRONG_VALUE && low[p] < m_last_swing_low && close[p] > m_last_swing_low));
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if(wick_pct_ok && wick_atr_ok && sweep_ok)
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{
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AddBlock(body_bottom, low[p], true, time[p], time[i], i);
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out_bull_sig[i] = low[p] - (atr_val * 0.3); // Signal Arrow
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}
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m_last_swing_low = low[p];
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}
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}
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// 3. Stateful Block Lifecycle Updates (Invalidation, Retest, Extension)
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for(int b = 0; b < m_block_count; b++)
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{
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if(!m_blocks[b].invalidated)
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{
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datetime extend_to = (i == rates_total - 1) ? curr_time : time[i];
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m_blocks[b].time_end = extend_to;
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if(is_confirmed && i > m_blocks[b].bar_formed)
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{
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// Invalidation rule: Candle body closes completely beyond the rejection wick boundary
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bool breached = m_blocks[b].is_bull ? (close[i] < m_blocks[b].bottom) : (close[i] > m_blocks[b].top);
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if(breached)
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{
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m_blocks[b].invalidated = true;
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m_blocks[b].time_invalidated = time[i];
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m_blocks[b].time_end = time[i]; // Strict Truncation!
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}
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else
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if(!m_blocks[b].armed)
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{
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// Arming: Price fully leaves the rejection wick zone
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m_blocks[b].armed = m_blocks[b].is_bull ? (low[i] > m_blocks[b].top) : (high[i] < m_blocks[b].bottom);
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}
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else
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if(!m_blocks[b].touched)
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{
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// Retest: Price returns back inside the zone
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bool back_in = m_blocks[b].is_bull ? (low[i] <= m_blocks[b].top) : (high[i] >= m_blocks[b].bottom);
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if(back_in)
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m_blocks[b].touched = true;
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}
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}
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}
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}
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}
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}
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//+------------------------------------------------------------------+
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//| Accessor |
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//+------------------------------------------------------------------+
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bool CRejectionBlock_Calculator::GetBlock(const int index, SRejectionBlock &out_block) const
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{
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if(index >= 0 && index < m_block_count)
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{
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out_block = m_blocks[index];
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return true;
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}
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return false;
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}
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#endif // REJECTION_BLOCK_CALCULATOR_MQH
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//+------------------------------------------------------------------+
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