124 lines
9.8 KiB
Plaintext
124 lines
9.8 KiB
Plaintext
//+------------------------------------------------------------------+
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//| PAC.mq5 |
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//| Copyright 2018, MetaQuotes Software Corp. |
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//| https://mql5.com |
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//+------------------------------------------------------------------+
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#property copyright "Copyright 2018, MetaQuotes Software Corp."
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#property link "https://mql5.com"
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#property version "1.00"
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#property description "Periods After Crossing MA"
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#property indicator_separate_window
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#property indicator_buffers 4
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#property indicator_plots 1
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//--- plot PAC
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#property indicator_label1 "PAC"
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#property indicator_type1 DRAW_COLOR_HISTOGRAM
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#property indicator_color1 clrGreen,clrRed
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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 uint InpPeriod = 14; // Period
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input ENUM_MA_METHOD InpMethod = MODE_SMA; // Method
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input ENUM_APPLIED_PRICE InpAppliedPrice = PRICE_CLOSE; // Applied price
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//--- indicator buffers
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double BufferPAC[];
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double BufferColors[];
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double BufferMA1[];
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double BufferMAP[];
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//--- global variables
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int period;
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int handle_ma1;
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int handle_maP;
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//+------------------------------------------------------------------+
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//| Custom indicator initialization function |
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//+------------------------------------------------------------------+
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int OnInit()
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{
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//--- set global variables
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period=int(InpPeriod<1 ? 1 : InpPeriod);
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//--- indicator buffers mapping
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SetIndexBuffer(0,BufferPAC,INDICATOR_DATA);
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SetIndexBuffer(1,BufferColors,INDICATOR_COLOR_INDEX);
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SetIndexBuffer(2,BufferMA1,INDICATOR_CALCULATIONS);
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SetIndexBuffer(3,BufferMAP,INDICATOR_CALCULATIONS);
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//--- setting indicator parameters
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IndicatorSetString(INDICATOR_SHORTNAME,"Periods After Crossing "+MethodToString(InpMethod)+"("+(string)period+")");
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IndicatorSetInteger(INDICATOR_DIGITS,0);
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//--- setting buffer arrays as timeseries
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ArraySetAsSeries(BufferPAC,true);
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ArraySetAsSeries(BufferColors,true);
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ArraySetAsSeries(BufferMA1,true);
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ArraySetAsSeries(BufferMAP,true);
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//--- create MA's handles
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ResetLastError();
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handle_ma1=iMA(NULL,PERIOD_CURRENT,1,0,MODE_SMA,InpAppliedPrice);
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if(handle_ma1==INVALID_HANDLE)
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{
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Print("The iMA(1) object was not created: Error ",GetLastError());
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return INIT_FAILED;
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}
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handle_maP=iMA(NULL,PERIOD_CURRENT,period,0,InpMethod,InpAppliedPrice);
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if(handle_maP==INVALID_HANDLE)
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{
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Print("The iMA(",(string)period,") object was not created: Error ",GetLastError());
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return INIT_FAILED;
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}
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//---
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return(INIT_SUCCEEDED);
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}
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//+------------------------------------------------------------------+
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//| Custom indicator iteration 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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//--- Проверка и расчёт количества просчитываемых баров
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if(rates_total<4 || Point()==0) return 0;
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//--- Проверка и расчёт количества просчитываемых баров
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int limit=rates_total-prev_calculated;
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if(limit>1)
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{
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limit=rates_total-2;
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ArrayInitialize(BufferPAC,EMPTY_VALUE);
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ArrayInitialize(BufferMA1,0);
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ArrayInitialize(BufferMAP,0);
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}
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//--- Подготовка данных
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int count=(limit>1 ? rates_total : 1),copied=0;
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copied=CopyBuffer(handle_ma1,0,0,count,BufferMA1);
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if(copied!=count) return 0;
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copied=CopyBuffer(handle_maP,0,0,count,BufferMAP);
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if(copied!=count) return 0;
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//--- Расчёт индикатора
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for(int i=limit; i>=0 && !IsStopped(); i--)
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{
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double ma0=BufferMAP[i];
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double ma1=BufferMAP[i+1];
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double pr0=BufferMA1[i];
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double pr1=BufferMA1[i+1];
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BufferPAC[i]=(pr0>ma0 && pr1>ma1 ? BufferPAC[i+1]+1 : pr0<ma0 && pr1<ma1 ? BufferPAC[i+1]-1 : pr0>ma0 ? 1 : -1);
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BufferColors[i]=(BufferPAC[i]<0 ? 1 : 0);
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}
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//--- return value of prev_calculated for next call
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return(rates_total);
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}
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//+------------------------------------------------------------------+
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//| Возвращает метод построения MA |
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//+------------------------------------------------------------------+
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string MethodToString(ENUM_MA_METHOD method)
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{
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return StringSubstr(EnumToString(method),5);
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}
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//+------------------------------------------------------------------+
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