| //+------------------------------------------------------------------+
|
| //| Fractals.mq5 |
|
| //| Copyright 2000-2025, MetaQuotes Ltd. |
|
| //| https://www.mql5.com |
|
| //+------------------------------------------------------------------+
|
| #property copyright "Copyright 2000-2025, MetaQuotes Ltd."
|
| #property link "https://www.mql5.com"
|
| //--- indicator settings
|
| #property indicator_chart_window
|
| #property indicator_buffers 2
|
| #property indicator_plots 2
|
| #property indicator_type1 DRAW_ARROW
|
| #property indicator_type2 DRAW_ARROW
|
| #property indicator_color1 clrGray
|
| #property indicator_color2 clrGray
|
| #property indicator_label1 "Fractal Up"
|
| #property indicator_label2 "Fractal Down"
|
| //--- indicator buffers
|
| double ExtUpperBuffer[];
|
| double ExtLowerBuffer[];
|
| //--- 10 pixels upper from high price
|
| int ExtArrowShift=-10;
|
| //+------------------------------------------------------------------+
|
| //| Custom indicator initialization function |
|
| //+------------------------------------------------------------------+
|
| void OnInit()
|
| {
|
| //--- indicator buffers mapping
|
| SetIndexBuffer(0,ExtUpperBuffer,INDICATOR_DATA);
|
| SetIndexBuffer(1,ExtLowerBuffer,INDICATOR_DATA);
|
| IndicatorSetInteger(INDICATOR_DIGITS,_Digits);
|
| //--- sets first bar from what index will be drawn
|
| PlotIndexSetInteger(0,PLOT_ARROW,217);
|
| PlotIndexSetInteger(1,PLOT_ARROW,218);
|
| //--- arrow shifts when drawing
|
| PlotIndexSetInteger(0,PLOT_ARROW_SHIFT,ExtArrowShift);
|
| PlotIndexSetInteger(1,PLOT_ARROW_SHIFT,-ExtArrowShift);
|
| //--- sets drawing line empty value--
|
| PlotIndexSetDouble(0,PLOT_EMPTY_VALUE,EMPTY_VALUE);
|
| PlotIndexSetDouble(1,PLOT_EMPTY_VALUE,EMPTY_VALUE);
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Fractals on 5 bars |
|
| //+------------------------------------------------------------------+
|
| 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[])
|
| {
|
| if(rates_total<5)
|
| return(0);
|
|
|
| int start;
|
| //--- clean up arrays
|
| if(prev_calculated<7)
|
| {
|
| start=2;
|
| ArrayInitialize(ExtUpperBuffer,EMPTY_VALUE);
|
| ArrayInitialize(ExtLowerBuffer,EMPTY_VALUE);
|
| }
|
| else
|
| start=rates_total-5;
|
| //--- main cycle of calculations
|
| for(int i=start; i<rates_total-3 && !IsStopped(); i++)
|
| {
|
| //--- Upper Fractal
|
| if(high[i]>high[i+1] && high[i]>high[i+2] && high[i]>=high[i-1] && high[i]>=high[i-2])
|
| ExtUpperBuffer[i]=high[i];
|
| else
|
| ExtUpperBuffer[i]=EMPTY_VALUE;
|
|
|
| //--- Lower Fractal
|
| if(low[i]<low[i+1] && low[i]<low[i+2] && low[i]<=low[i-1] && low[i]<=low[i-2])
|
| ExtLowerBuffer[i]=low[i];
|
| else
|
| ExtLowerBuffer[i]=EMPTY_VALUE;
|
| }
|
| //--- OnCalculate done. Return new prev_calculated.
|
| return(rates_total);
|
| }
|
|
|
| //+------------------------------------------------------------------+
|
