122 lines
9.2 KiB
Plaintext
122 lines
9.2 KiB
Plaintext
//+------------------------------------------------------------------+
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//| SerialMA.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 indicator_chart_window
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#property indicator_buffers 3
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#property indicator_plots 2
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//--- plot MA
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#property indicator_label1 "MA"
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#property indicator_type1 DRAW_LINE
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#property indicator_color1 clrRed
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#property indicator_style1 STYLE_SOLID
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#property indicator_width1 1
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//--- plot Point
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#property indicator_label2 "Point"
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#property indicator_type2 DRAW_ARROW
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#property indicator_color2 clrBlue
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#property indicator_style2 STYLE_SOLID
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#property indicator_width2 1
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//--- indicator buffers
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double BufferMA[];
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double BufferPoint[];
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double BufferTime[];
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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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//--- indicator buffers mapping
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SetIndexBuffer(0,BufferMA,INDICATOR_DATA);
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SetIndexBuffer(1,BufferPoint,INDICATOR_DATA);
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SetIndexBuffer(2,BufferTime,INDICATOR_CALCULATIONS);
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//--- setting a code from the Wingdings charset as the property of PLOT_ARROW
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PlotIndexSetInteger(1,PLOT_ARROW,159);
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//--- settings indicators parameters
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IndicatorSetInteger(INDICATOR_DIGITS,Digits());
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IndicatorSetString(INDICATOR_SHORTNAME,"Serial MA");
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//--- setting buffer arrays as timeseries
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ArraySetAsSeries(BufferMA,true);
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ArraySetAsSeries(BufferPoint,true);
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ArraySetAsSeries(BufferTime,true);
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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 на минимальное количество баров для расчёта
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if(rates_total<3) return 0;
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//--- Установка индексации массивов как у таймсерий
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ArraySetAsSeries(close,true);
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ArraySetAsSeries(time,true);
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//--- Проверка и расчёт количества просчитываемых баров
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int total=rates_total-2,limit=rates_total-prev_calculated;
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if(limit>1)
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{
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limit=total;
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ArrayInitialize(BufferMA,EMPTY_VALUE);
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ArrayInitialize(BufferPoint,EMPTY_VALUE);
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ArrayInitialize(BufferTime,EMPTY_VALUE);
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}
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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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if(i==total)
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BufferTime[i]=(double)time[i];
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else
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{
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BufferTime[i]=BufferTime[i+1];
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int period_ma=BarShift(Symbol(),PERIOD_CURRENT,(datetime)BufferTime[i])-i+1;
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double summ=0;
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for(int n=0; n<period_ma; n++)
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summ+=close[i+n];
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if(period_ma!=0) BufferMA[i]=summ/period_ma;
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if((BufferMA[i]-close[i])*(BufferMA[i+1]-close[i+1])<0)
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{
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BufferTime[i]=(double)time[i];
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BufferPoint[i]=BufferMA[i]=close[i];
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}
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else
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BufferPoint[i]=EMPTY_VALUE;
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}
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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 смещение бара по времени |
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//+------------------------------------------------------------------+
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int BarShift(string symbol_name,const ENUM_TIMEFRAMES timeframe,const datetime time)
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{
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if(symbol_name==NULL || symbol_name=="") symbol_name=Symbol();
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int res=WRONG_VALUE;
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datetime last_bar=0;
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if(::SeriesInfoInteger(symbol_name,timeframe,SERIES_LASTBAR_DATE,last_bar))
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{
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if(time>last_bar) res=0;
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else
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{
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const int shift=::Bars(Symbol(),timeframe,time,last_bar);
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if(shift>0) res=shift-1;
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}
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}
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return(res);
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}
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//+------------------------------------------------------------------+
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