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mql5/Indicators/MyIndicators/CCI_Precise_HeikinAshi.mq5
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2025-08-25 10:12:43 +02:00

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//+------------------------------------------------------------------+
//| CCI_Precise_HeikinAshi.mq5 |
//| Copyright 2025, xxxxxxxx |
//| |
//+------------------------------------------------------------------+
#property copyright "Copyright 2025, xxxxxxxx"
#property link ""
#property version "1.00"
#property description "CCI (Precise definition) on Heikin Ashi data, with a signal line."
#include <MyIncludes\HeikinAshi_Tools.mqh>
//--- Indicator Window and Plot Properties ---
#property indicator_separate_window
#property indicator_buffers 2 // CCI and Signal Line
#property indicator_plots 2
#property indicator_level1 -100.0
#property indicator_level2 100.0
#property indicator_level3 0.0
#property indicator_levelstyle STYLE_DOT
//--- Plot 1: CCI line
#property indicator_label1 "HA_CCI"
#property indicator_type1 DRAW_LINE
#property indicator_color1 clrLightSeaGreen
#property indicator_style1 STYLE_SOLID
#property indicator_width1 1
//--- Plot 2: Signal line
#property indicator_label2 "HA_Signal"
#property indicator_type2 DRAW_LINE
#property indicator_color2 clrOrangeRed
#property indicator_style2 STYLE_DOT
#property indicator_width2 1
//--- Enum for selecting Heikin Ashi price source ---
enum ENUM_HA_APPLIED_PRICE
{
HA_PRICE_TYPICAL, // (HA_H + HA_L + HA_C) / 3
HA_PRICE_CLOSE, HA_PRICE_OPEN, HA_PRICE_HIGH, HA_PRICE_LOW
};
//--- Input Parameters ---
input int InpCCIPeriod = 20;
input ENUM_HA_APPLIED_PRICE InpAppliedPrice = HA_PRICE_TYPICAL;
input group "Signal Line Settings"
input int InpMAPeriod = 14;
input ENUM_MA_METHOD InpMAMethod = MODE_SMA;
//--- Indicator Buffers ---
double BufferCCI[];
double BufferSignal[];
//--- Global Objects and Variables ---
int g_ExtCCIPeriod, g_ExtMAPeriod;
const double CCI_CONSTANT = 0.015;
CHeikinAshi_Calculator *g_ha_calculator;
//+------------------------------------------------------------------+
//| Custom indicator initialization function. |
//+------------------------------------------------------------------+
int OnInit()
{
g_ExtCCIPeriod = (InpCCIPeriod < 1) ? 1 : InpCCIPeriod;
g_ExtMAPeriod = (InpMAPeriod < 1) ? 1 : InpMAPeriod;
SetIndexBuffer(0, BufferCCI, INDICATOR_DATA);
SetIndexBuffer(1, BufferSignal, INDICATOR_DATA);
ArraySetAsSeries(BufferCCI, false);
ArraySetAsSeries(BufferSignal, false);
int cci_draw_begin = g_ExtCCIPeriod - 1;
PlotIndexSetInteger(0, PLOT_DRAW_BEGIN, cci_draw_begin);
PlotIndexSetInteger(1, PLOT_DRAW_BEGIN, cci_draw_begin + g_ExtMAPeriod - 1);
IndicatorSetString(INDICATOR_SHORTNAME, StringFormat("HA_CCI_Precise(%d, %d)", g_ExtCCIPeriod, g_ExtMAPeriod));
IndicatorSetInteger(INDICATOR_DIGITS, 2);
g_ha_calculator = new CHeikinAshi_Calculator();
if(CheckPointer(g_ha_calculator) == POINTER_INVALID)
{
Print("Error creating CHeikinAshi_Calculator object");
return(INIT_FAILED);
}
return(INIT_SUCCEEDED);
}
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function. |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)
{
if(CheckPointer(g_ha_calculator) != POINTER_INVALID)
{
delete g_ha_calculator;
g_ha_calculator = NULL;
}
}
//+------------------------------------------------------------------+
//| CCI Precise on Heikin Ashi calculation function. |
//+------------------------------------------------------------------+
int OnCalculate(const int rates_total,
const int prev_calculated,
const datetime &time[],
const double &open[],
const double &high[],
const double &low[],
const double &close[],
const long &tick_volume[],
const long &volume[],
const int &spread[])
{
int start_pos = g_ExtCCIPeriod + g_ExtMAPeriod - 1;
if(rates_total < start_pos)
return(0);
//--- Intermediate Heikin Ashi Buffers
double ha_open[], ha_high[], ha_low[], ha_close[];
ArrayResize(ha_open, rates_total);
ArrayResize(ha_high, rates_total);
ArrayResize(ha_low, rates_total);
ArrayResize(ha_close, rates_total);
//--- STEP 1: Calculate Heikin Ashi bars
g_ha_calculator.Calculate(rates_total, open, high, low, close, ha_open, ha_high, ha_low, ha_close);
//--- STEP 2: Prepare the Heikin Ashi source price array
double ha_price_source[];
ArrayResize(ha_price_source, rates_total);
for(int i=0; i<rates_total; i++)
{
switch(InpAppliedPrice)
{
case HA_PRICE_OPEN:
ha_price_source[i] = ha_open[i];
break;
case HA_PRICE_HIGH:
ha_price_source[i] = ha_high[i];
break;
case HA_PRICE_LOW:
ha_price_source[i] = ha_low[i];
break;
case HA_PRICE_CLOSE:
ha_price_source[i] = ha_close[i];
break;
default:
ha_price_source[i] = (ha_high[i] + ha_low[i] + ha_close[i]) / 3.0;
break;
}
}
//--- STEP 3: Calculate CCI using the precise definition
for(int i = g_ExtCCIPeriod - 1; i < rates_total; i++)
{
double sma = 0;
for(int j=0; j<g_ExtCCIPeriod; j++)
{
sma += ha_price_source[i-j];
}
sma /= g_ExtCCIPeriod;
double mad = 0;
for(int j=0; j<g_ExtCCIPeriod; j++)
{
mad += MathAbs(ha_price_source[i-j] - sma);
}
mad /= g_ExtCCIPeriod;
if(mad > 0)
{
BufferCCI[i] = (ha_price_source[i] - sma) / (CCI_CONSTANT * mad);
}
}
//--- STEP 4: Calculate the Signal Line (MA of CCI)
int ma_start_pos = g_ExtCCIPeriod + g_ExtMAPeriod - 2;
for(int i = ma_start_pos; i < rates_total; i++)
{
switch(InpMAMethod)
{
case MODE_EMA:
case MODE_SMMA:
if(i == ma_start_pos)
{
double sum=0;
for(int j=0; j<g_ExtMAPeriod; j++)
sum+=BufferCCI[i-j];
BufferSignal[i] = sum/g_ExtMAPeriod;
}
else
{
if(InpMAMethod == MODE_EMA)
{
double pr=2.0/(g_ExtMAPeriod+1.0);
BufferSignal[i] = BufferCCI[i]*pr + BufferSignal[i-1]*(1.0-pr);
}
else
BufferSignal[i] = (BufferSignal[i-1]*(g_ExtMAPeriod-1)+BufferCCI[i])/g_ExtMAPeriod;
}
break;
case MODE_LWMA:
{
double lwma_sum=0, weight_sum=0;
for(int j=0; j<g_ExtMAPeriod; j++)
{
int weight=g_ExtMAPeriod-j;
lwma_sum+=BufferCCI[i-j]*weight;
weight_sum+=weight;
}
if(weight_sum>0)
BufferSignal[i]=lwma_sum/weight_sum;
}
break;
default: // MODE_SMA
{
double sum=0;
for(int j=0; j<g_ExtMAPeriod; j++)
sum+=BufferCCI[i-j];
BufferSignal[i] = sum/g_ExtMAPeriod;
}
break;
}
}
return(rates_total);
}
//+------------------------------------------------------------------+
//+------------------------------------------------------------------+