prepare workspace by eu5, add some scripts and node modules on Documents folder, extends compile script and also node module to automate usefull most commonly used compilation tasks and also create required npm scripts and vscode debug lunch tasks based on them ...
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///////////////////////////////////////////////////////
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//
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// SaherElm IT Center MQL5 XAMA Indicator
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// ---------------------------------------------
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// Name: XAMA
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// Description: Trend Magic Indicator ...
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//
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//
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// Maintainer:
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// ------------
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// Hadi Khazaee Asl (hadi_khazaee_asl@yahoo.com)
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//
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//////////////////////////////////////////////////////
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//
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// Global Properties ...
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#property copyright "Copyright 2023, SaherElm IT Center"
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#property link "https://saherelm.ir"
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#property version "1.00"
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#property description "SaherElm XAMA Indicator"
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#property strict
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//
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// START Constants ...
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//
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#define ShortName "XAMA"
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//
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// XAMA Indicator States ...
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enum ENUM_X_XAMA_STATES
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{
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X_XAMA_BULLISH = 1,
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X_XAMA_BEARISH = -1,
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X_XAMA_NEUTURAL = 0,
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};
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//
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// END Constants ...
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//
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//
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// START Inputs ...
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//
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input int length = 18; // Period
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input int fastEMA = 2; // Fast EMA Period
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input int slowEMA = 30; // Slow EMA Period
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input int maShift = 0; // Shift
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input ENUM_APPLIED_PRICE appliedTo = PRICE_CLOSE; // Applied To
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//
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// END Inputs ...
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//
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//
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// Includes Logging Library ...
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#include "../Libraries/x-saherelm.log.lib.mq5"
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//
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// Includes Common Library ...
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#include "../Libraries/x-saherelm.common.lib.mq5"
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//
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// START Buffers ...
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//
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#property indicator_chart_window
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//
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#property indicator_buffers 3
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#property indicator_plots 1
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//
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// maBuffer ...
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#define maBufferIndex 0
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#define maColorBufferIndex 1
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#define stateBufferIndex 2
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double maBuffer[];
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double maColorBuffer[];
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double stateBuffer[];
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#property indicator_label1 "XAMA"
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#property indicator_type1 DRAW_COLOR_LINE
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#property indicator_color1 clrLime, clrGray, clrRed
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#property indicator_style1 STYLE_SOLID
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#property indicator_width1 1
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//
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// END Buffers ...
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//
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//
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// START Global Definitions: Variables, Properties and etc ...
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//
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int maHandler = INVALID_HANDLE;
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//
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// END Global Definitions: Variables, Properties and etc ...
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//
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//
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// START Event Handlers ...
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//
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//
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// Initialization ...
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int OnInit()
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{
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//
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// Validate Inputs ...
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if (!ValidateInputs())
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{
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return INIT_PARAMETERS_INCORRECT;
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}
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//
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logTag = ShortName;
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//
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// Initializing MA Handler ...
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maHandler = iAMA(
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_Symbol,
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_Period,
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length,
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fastEMA,
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slowEMA,
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maShift,
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appliedTo);
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if (maHandler == INVALID_HANDLE)
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{
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//
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string message = "Error Initializing Ma Handler ...";
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LogMessage(message);
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//
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return INIT_FAILED;
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}
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//
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// Define Index Buffers ...
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DefineBuffers();
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//
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// Set Indicator ShortName ...
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SetIndicatorName();
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//
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// Init Succeed ...
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return INIT_SUCCEEDED;
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}
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//
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// DeInitialization ...
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void OnDeinit(const int reason)
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{
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//
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// REASON_PROGRAM 0 The EA has stopped working calling the ExpertRemove() function
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// REASON_REMOVE 1 Program removed from a chart
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// REASON_RECOMPILE 2 Program recompiled
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// REASON_CHARTCHANGE 3 A symbol or a chart period is changed
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// REASON_CHARTCLOSE 4 Chart closed
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// REASON_PARAMETERS 5 Inputs changed by a user
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// REASON_ACCOUNT 6 Another account has been activated or reconnection to the trade server has occurred due to changes in the account settings
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// REASON_TEMPLATE 7 Another chart template applied
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// REASON_INITFAILED 8 The OnInit() handler returned a non-zero value
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// REASON_CLOSE 9 Terminal closed
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//
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// Here we can handle De Initialization Reasons ...
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IndicatorRelease(maHandler);
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}
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//
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// Calculations ...
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//
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// Calculating what we want ...
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int OnCalculate(
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//
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// total Candles on chart ...
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const int rates_total,
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//
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// total calculated Candles on charts ...
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const int prev_calculated,
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//
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// history of Candles Open Time ...
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const datetime &time[],
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//
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// history of Candles Open Price ...
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const double &open[],
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//
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// history of Candles High Price ...
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const double &high[],
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//
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// history of Candles Low Price ...
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const double &low[],
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//
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// history of Candles Close Price ...
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const double &close[],
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//
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// history of Tick Volumes on Candle ...
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const long &tick_volume[],
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//
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// history of Trade Volumes ...
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const long &volume[],
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//
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// history of Candles Spread Price ...
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const int &spread[])
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{
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//
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// Prepare Buffers ...
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ArraySetAsSeries(time, true);
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ArraySetAsSeries(open, true);
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ArraySetAsSeries(high, true);
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ArraySetAsSeries(low, true);
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ArraySetAsSeries(close, true);
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ArraySetAsSeries(tick_volume, true);
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ArraySetAsSeries(volume, true);
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ArraySetAsSeries(spread, true);
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//
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// this counts Available Bars ...
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int limit;
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//
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// because in some cases we may have more than one input for
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// calculation and we must prevent any calculation
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// untill we pass the biggest input length, here we get max Input length
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// and then wait until pass it ...
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int maxLength = MathMax(fastEMA, slowEMA);
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maxLength = MathMax(maxLength, length);
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//
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// Check Calculated Bars ...
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int maCalculatedBars = BarsCalculated(maHandler);
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if (maCalculatedBars < maxLength)
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{
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return prev_calculated;
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}
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//
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limit = (prev_calculated > rates_total || prev_calculated <= 0) ? rates_total : (rates_total - prev_calculated) + 1;
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//
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// Buffers Copy ...
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int copiedMas = CopyBuffer(maHandler, 0, 0, limit, maBuffer);
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if (copiedMas <= 0)
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{
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return prev_calculated;
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}
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//
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// Main Loop ...
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for (int i = limit - 1; i >= 0 && !IsStopped(); i--)
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{
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//
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// Do Buffers Calculation ...
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CalculateBuffers(i);
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}
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//
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return rates_total;
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}
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//
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// END Event Handlers ...
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//
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//
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// START Functions ...
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//
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//
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// Validate Input Args for Initialization ...
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bool ValidateInputs()
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{
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//
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bool result = false;
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//
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// Validate Args ...
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if (length >= 2)
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{
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result = true;
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}
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//
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return result;
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}
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//
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// Define Indexes and Styles ...
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void DefineBuffers()
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{
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//
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string maBufferLabel = "XAMA " + "(" + (string)length + ")";
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//
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// Ma Buffer ...
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ArraySetAsSeries(maBuffer, true);
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SetIndexBuffer(maBufferIndex, maBuffer, INDICATOR_DATA);
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PlotIndexSetString(maBufferIndex, PLOT_LABEL, maBufferLabel);
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//
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// Ma Color Buffer ...
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ArraySetAsSeries(maColorBuffer, true);
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SetIndexBuffer(maColorBufferIndex, maColorBuffer, INDICATOR_COLOR_INDEX);
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//
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// State Buffer ...
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ArraySetAsSeries(stateBuffer, true);
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SetIndexBuffer(stateBufferIndex, stateBuffer, INDICATOR_CALCULATIONS);
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}
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//
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// Set Indicator Short Name and also we can define Buffers Labels ...
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void SetIndicatorName()
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{
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//
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string indicatorShortName = "";
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StringConcatenate(indicatorShortName, ShortName, " ", "(", length, ")");
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//
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IndicatorSetString(INDICATOR_SHORTNAME, indicatorShortName);
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}
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//
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// Calculate Buffers ...
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void CalculateBuffers(int bar_index)
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{
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//
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// Requirements ...
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XOHCL candle = GetCandle(bar_index);
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//
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double maValue = maBuffer[bar_index];
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//
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double lineColorIndex =
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maValue < candle.low ? 0 : maValue > candle.high ? 2
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: 1;
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//
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// Define State Value ...
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// lineColorIndex == 0 => Bullish => 1;
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// lineColorIndex == 1 => Neutural => 0;
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// lineColorIndex == 2 => Bearish => -1;
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double stateValue =
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lineColorIndex == 0 ? X_XAMA_BULLISH : lineColorIndex == 2 ? X_XAMA_BEARISH
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: X_XAMA_NEUTURAL;
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//
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// Set Ma Buffer Color Index ...
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maColorBuffer[bar_index] = lineColorIndex;
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//
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// Set State Buffer Value ...
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stateBuffer[bar_index] = stateValue;
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}
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//
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// END Functions ...
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//
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