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refactor: add BarsCalculated

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This commit is contained in:
Toh4iem9
2025-08-12 14:07:20 +02:00
parent b2604133a4
commit 68c72c5b40
1 changed files with 68 additions and 74 deletions
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Indicators/MyIndicators/RSIMa.mq5
+68 -74
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@@ -1,77 +1,79 @@
//+------------------------------------------------------------------+ //+------------------------------------------------------------------+
//| RSIMa.mq5 | //| RSIMA.mq5 |
//| Copyright 2018, MetaQuotes Software Corp. | //| Copyright 2018, MetaQuotes Software Corp. |
//| https://mql5.com | //| https://www.mql5.com |
//+------------------------------------------------------------------+ //+------------------------------------------------------------------+
#property copyright "Copyright 2018, MetaQuotes Software Corp." #property copyright "Copyright 2018, MetaQuotes Software Corp."
#property link "https://mql5.com" #property link "https://www.mql5.com"
#property version "1.03" // Final robust version with manual calculation loop #property version "1.10" // Added robust data availability check
#property description "Oscillator based on the Moving Average of RSI." #property description "Oscillator based on the Moving Average of a standard RSI."
// --- Standard Includes ---
#include <MovingAverages.mqh>
//--- Indicator Window and Level Properties ---
#property indicator_separate_window #property indicator_separate_window
#property indicator_level1 30.0 #property indicator_level1 30.0
#property indicator_level2 50.0 #property indicator_level2 50.0
#property indicator_level3 70.0 #property indicator_level3 70.0
//--- Buffers and Plots ---
#property indicator_buffers 2 #property indicator_buffers 2
#property indicator_plots 2 #property indicator_plots 2
//--- plot RSIMA (Smoothed RSI) //--- Plot 1: RSIMA (Smoothed RSI)
#property indicator_label1 "RSIMA" #property indicator_label1 "RSIMA"
#property indicator_type1 DRAW_LINE #property indicator_type1 DRAW_LINE
#property indicator_color1 clrDodgerBlue #property indicator_color1 clrDodgerBlue
#property indicator_style1 STYLE_SOLID #property indicator_style1 STYLE_SOLID
#property indicator_width1 1 #property indicator_width1 1
//--- plot RSI (Raw RSI) //--- Plot 2: RSI (Raw RSI)
#property indicator_label2 "RSI" #property indicator_label2 "RSI"
#property indicator_type2 DRAW_LINE #property indicator_type2 DRAW_LINE
#property indicator_color2 clrGreen #property indicator_color2 clrGreen
#property indicator_style2 STYLE_SOLID #property indicator_style2 STYLE_SOLID
#property indicator_width2 1 #property indicator_width2 1
//--- input parameters //--- Input Parameters ---
input uint InpPeriodRSI = 14; // RSI period input uint InpPeriodRSI = 14; // Period for RSI
input ENUM_APPLIED_PRICE InpAppliedPrice = PRICE_CLOSE; // RSI applied price input ENUM_APPLIED_PRICE InpAppliedPrice = PRICE_CLOSE; // Applied price for RSI
input uint InpPeriodMA = 14; // Smoothing period input uint InpPeriodMA = 14; // Period for Moving Average
input ENUM_MA_METHOD InpMethod = MODE_SMA; // Smoothing method input ENUM_MA_METHOD InpMethod = MODE_SMA; // Method for Moving Average
//--- indicator buffers //--- Indicator Buffers ---
double BufferRSIMA[]; // Buffer for the smoothed RSI line (Plot 1) double BufferRSIMA[]; // Buffer for the smoothed RSI line (Plot 1)
double BufferRawRSI[]; // Buffer for the raw RSI values (Plot 2) double BufferRawRSI[]; // Buffer for the raw RSI values (Plot 2)
//--- global variables //--- Global Variables ---
int handle_rsi; int ExtPeriodRSI;
int ExtPeriodMA;
//--- includes int handle_rsi; // Handle for the standard RSI indicator
#include <MovingAverages.mqh>
//+------------------------------------------------------------------+ //+------------------------------------------------------------------+
//| Custom indicator initialization function | //| Custom indicator initialization function. |
//| Called once when the indicator is first loaded. |
//+------------------------------------------------------------------+ //+------------------------------------------------------------------+
int OnInit() int OnInit()
{ {
int period_rsi = (int)InpPeriodRSI; //--- Validate and store input periods
if(period_rsi < 1) ExtPeriodRSI = (int)(InpPeriodRSI < 1 ? 1 : InpPeriodRSI);
period_rsi = 1; ExtPeriodMA = (int)(InpPeriodMA < 1 ? 1 : InpPeriodMA);
int period_ma = (int)InpPeriodMA;
if(period_ma < 1)
period_ma = 1;
//--- Map the buffers to the indicator's internal memory
SetIndexBuffer(0, BufferRSIMA, INDICATOR_DATA); SetIndexBuffer(0, BufferRSIMA, INDICATOR_DATA);
SetIndexBuffer(1, BufferRawRSI, INDICATOR_DATA); SetIndexBuffer(1, BufferRawRSI, INDICATOR_DATA);
IndicatorSetString(INDICATOR_SHORTNAME, StringFormat("RSIMA(%d, %d)", period_rsi, period_ma)); //--- Set indicator display properties
IndicatorSetString(INDICATOR_SHORTNAME, StringFormat("RSIMA(%d, %d)", ExtPeriodRSI, ExtPeriodMA));
IndicatorSetInteger(INDICATOR_DIGITS, 2); IndicatorSetInteger(INDICATOR_DIGITS, 2);
PlotIndexSetInteger(0, PLOT_DRAW_BEGIN, ExtPeriodRSI + ExtPeriodMA - 1);
PlotIndexSetInteger(0, PLOT_DRAW_BEGIN, period_rsi + period_ma - 1);
PlotIndexSetString(0, PLOT_LABEL, "RSIMA"); PlotIndexSetString(0, PLOT_LABEL, "RSIMA");
PlotIndexSetInteger(1, PLOT_DRAW_BEGIN, ExtPeriodRSI - 1);
PlotIndexSetInteger(1, PLOT_DRAW_BEGIN, period_rsi - 1);
PlotIndexSetString(1, PLOT_LABEL, "RSI"); PlotIndexSetString(1, PLOT_LABEL, "RSI");
handle_rsi = iRSI(_Symbol, _Period, period_rsi, InpAppliedPrice); //--- Create a handle to the standard iRSI indicator
handle_rsi = iRSI(_Symbol, _Period, ExtPeriodRSI, InpAppliedPrice);
if(handle_rsi == INVALID_HANDLE) if(handle_rsi == INVALID_HANDLE)
{ {
PrintFormat("Failed to create iRSI handle. Error %d", GetLastError()); PrintFormat("Failed to create iRSI handle. Error %d", GetLastError());
@@ -82,7 +84,8 @@ int OnInit()
} }
//+------------------------------------------------------------------+ //+------------------------------------------------------------------+
//| Custom indicator iteration function | //| Custom indicator calculation function. |
//| Called on every new tick or new bar. |
//+------------------------------------------------------------------+ //+------------------------------------------------------------------+
int OnCalculate(const int rates_total, int OnCalculate(const int rates_total,
const int prev_calculated, const int prev_calculated,
@@ -95,73 +98,64 @@ int OnCalculate(const int rates_total,
const long &volume[], const long &volume[],
const int &spread[]) const int &spread[])
{ {
int period_rsi = (int)InpPeriodRSI; //--- Check if there is enough data for the initial calculation
if(period_rsi < 1) if(rates_total < ExtPeriodRSI)
period_rsi = 1;
int period_ma = (int)InpPeriodMA;
if(period_ma < 1)
period_ma = 1;
if(rates_total < period_rsi)
return(0); return(0);
//--- FIX: Check if the source indicator (iRSI) has calculated its data ---
// This prevents "Error copying buffer" when changing timeframes or on first load.
int calculated_rsi = BarsCalculated(handle_rsi);
if(calculated_rsi < rates_total)
{
// Not all data is ready yet, wait for the next OnCalculate call
return(0);
}
//--- Get all available RSI values into our buffer --- //--- Get all available RSI values into our buffer ---
if(CopyBuffer(handle_rsi, 0, 0, rates_total, BufferRawRSI) != rates_total) if(CopyBuffer(handle_rsi, 0, 0, rates_total, BufferRawRSI) <= 0)
{ {
Print("Error copying RSI buffer."); // This might still happen occasionally, but the check above reduces it.
Print("Error copying RSI buffer. LastError: ", GetLastError());
return(0); return(0);
} }
//--- Manual calculation loop for robustness --- //--- Calculate the Moving Average on the RSI buffer ---
int start_pos;
// Determine the starting bar for calculation
if(prev_calculated > 0)
{
// On subsequent calls, start from the last calculated bar
start_pos = prev_calculated - 1;
}
else
{
// On the first call, start from the first bar where MA can be calculated
start_pos = period_rsi + period_ma - 2;
}
// The MA functions need non-timeseries arrays // The MA functions need non-timeseries arrays
ArraySetAsSeries(BufferRawRSI, false); ArraySetAsSeries(BufferRawRSI, false);
ArraySetAsSeries(BufferRSIMA, false); // Also set the target buffer
int start_pos;
if(prev_calculated > 1)
start_pos = prev_calculated - 1;
else
start_pos = ExtPeriodRSI + ExtPeriodMA - 2; // Start from the first valid bar
// Loop through the bars that need calculation // Loop through the bars that need calculation
for(int i = start_pos; i < rates_total; i++) for(int i = start_pos; i < rates_total; i++)
{ {
// Check if we have enough data for the MA calculation at this position if(i < ExtPeriodRSI + ExtPeriodMA - 2)
if(i < period_rsi + period_ma - 2) continue; // Skip bars with insufficient data for MA
{
BufferRSIMA[i] = EMPTY_VALUE;
continue;
}
// Calculate the MA value for the current bar 'i'
switch(InpMethod) switch(InpMethod)
{ {
case MODE_EMA: case MODE_EMA:
// For EMA, we need the previous EMA value BufferRSIMA[i] = ExponentialMA(i, ExtPeriodMA, BufferRSIMA[i-1], BufferRawRSI);
BufferRSIMA[i] = ExponentialMA(i, period_ma, BufferRSIMA[i-1], BufferRawRSI);
break; break;
case MODE_SMMA: case MODE_SMMA:
// For SMMA, we also need the previous SMMA value BufferRSIMA[i] = SmoothedMA(i, ExtPeriodMA, BufferRSIMA[i-1], BufferRawRSI);
BufferRSIMA[i] = SmoothedMA(i, period_ma, BufferRSIMA[i-1], BufferRawRSI);
break; break;
case MODE_LWMA: case MODE_LWMA:
BufferRSIMA[i] = LinearWeightedMA(i, period_ma, BufferRawRSI); BufferRSIMA[i] = LinearWeightedMA(i, ExtPeriodMA, BufferRawRSI);
break; break;
default: // MODE_SMA default: // MODE_SMA
BufferRSIMA[i] = SimpleMA(i, period_ma, BufferRawRSI); BufferRSIMA[i] = SimpleMA(i, ExtPeriodMA, BufferRawRSI);
break; break;
} }
} }
// Restore the timeseries property for the raw RSI buffer if needed elsewhere // It's good practice to restore the series state if other parts of the code might expect it
ArraySetAsSeries(BufferRawRSI, true); ArraySetAsSeries(BufferRawRSI, true);
ArraySetAsSeries(BufferRSIMA, true);
return(rates_total); return(rates_total);
} }