mirror of
https://github.com/softwaredevelop/mql5.git
synced 2026-07-29 05:27:43 +00:00
Toh4iem9
125 lines
4.5 KiB
Plaintext
125 lines
4.5 KiB
Plaintext
//+------------------------------------------------------------------+
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//| HMA.mq5 |
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//| Copyright 2025, xxxxxxxx |
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//| |
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//+------------------------------------------------------------------+
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#property copyright "Copyright 2025, xxxxxxxx"
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#property link ""
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#property version "2.00" // Refactored to use direct calculation, no handles
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#property description "Hull Moving Average (HMA)"
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#include <MovingAverages.mqh>
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//--- Indicator Window and Plot Properties ---
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#property indicator_chart_window
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#property indicator_buffers 4 // HMA, and 3 calculation buffers
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#property indicator_plots 1
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//--- Plot 1: HMA line
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#property indicator_label1 "HMA"
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#property indicator_type1 DRAW_LINE
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#property indicator_color1 clrDeepPink
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#property indicator_style1 STYLE_SOLID
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#property indicator_width1 2
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//--- Input Parameters ---
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input int InpPeriodHMA = 14;
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input ENUM_APPLIED_PRICE InpAppliedPrice = PRICE_CLOSE;
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//--- Indicator Buffers ---
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double BufferHMA[];
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double BufferWMA_Half[];
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double BufferWMA_Full[];
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double BufferRawHMA[];
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double BufferPrice[]; // Buffer for the source price data
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//--- Global Variables ---
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int ExtPeriodHMA;
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//+------------------------------------------------------------------+
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//| Custom indicator initialization function. |
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//+------------------------------------------------------------------+
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void OnInit()
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{
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ExtPeriodHMA = (InpPeriodHMA < 1) ? 1 : InpPeriodHMA;
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SetIndexBuffer(0, BufferHMA, INDICATOR_DATA);
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SetIndexBuffer(1, BufferWMA_Half, INDICATOR_CALCULATIONS);
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SetIndexBuffer(2, BufferWMA_Full, INDICATOR_CALCULATIONS);
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SetIndexBuffer(3, BufferRawHMA, INDICATOR_CALCULATIONS);
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SetIndexBuffer(4, BufferPrice, INDICATOR_CALCULATIONS);
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ArraySetAsSeries(BufferHMA, false);
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ArraySetAsSeries(BufferWMA_Half, false);
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ArraySetAsSeries(BufferWMA_Full, false);
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ArraySetAsSeries(BufferRawHMA, false);
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ArraySetAsSeries(BufferPrice, false);
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IndicatorSetInteger(INDICATOR_DIGITS, _Digits);
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PlotIndexSetInteger(0, PLOT_DRAW_BEGIN, ExtPeriodHMA + (int)MathFloor(MathSqrt(ExtPeriodHMA)) - 1);
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IndicatorSetString(INDICATOR_SHORTNAME, StringFormat("HMA(%d)", ExtPeriodHMA));
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}
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//+------------------------------------------------------------------+
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//| Hull Moving Average calculation function. |
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//+------------------------------------------------------------------+
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int OnCalculate(const int rates_total,
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const int prev_calculated,
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const datetime &time[],
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const double &open[],
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const double &high[],
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const double &low[],
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const double &close[],
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const long &tick_volume[],
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const long &volume[],
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const int &spread[])
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{
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if(rates_total < ExtPeriodHMA)
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return(0);
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//--- STEP 1: Get the source price data ---
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// This replaces the iMA handle logic
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switch(InpAppliedPrice)
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{
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case PRICE_OPEN:
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ArrayCopy(BufferPrice, open);
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break;
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case PRICE_HIGH:
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ArrayCopy(BufferPrice, high);
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break;
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case PRICE_LOW:
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ArrayCopy(BufferPrice, low);
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break;
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default:
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ArrayCopy(BufferPrice, close);
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break;
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}
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//--- STEP 2: Calculate the two base WMAs
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int period_half = (int)MathMax(1, MathRound(ExtPeriodHMA / 2.0));
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for(int i = 0; i < rates_total; i++)
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{
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if(i >= period_half - 1)
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BufferWMA_Half[i] = LinearWeightedMA(i, period_half, BufferPrice);
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if(i >= ExtPeriodHMA - 1)
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BufferWMA_Full[i] = LinearWeightedMA(i, ExtPeriodHMA, BufferPrice);
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}
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//--- STEP 3: Calculate the raw HMA data
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for(int i = ExtPeriodHMA - 1; i < rates_total; i++)
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{
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BufferRawHMA[i] = 2 * BufferWMA_Half[i] - BufferWMA_Full[i];
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}
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//--- STEP 4: Smooth the raw HMA with the final WMA
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int period_sqrt = (int)MathMax(1, MathRound(MathSqrt(ExtPeriodHMA)));
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for(int i = ExtPeriodHMA + period_sqrt - 2; i < rates_total; i++)
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{
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BufferHMA[i] = LinearWeightedMA(i, period_sqrt, BufferRawHMA);
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}
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return(rates_total);
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}
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//+------------------------------------------------------------------+
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//+------------------------------------------------------------------+
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