//+------------------------------------------------------------------+ //| Simple_Support_Resistance.mq5 | //| Copyright 2018, MetaQuotes Software Corp. | //| https://mql5.com | //+------------------------------------------------------------------+ #property copyright "Copyright 2018, MetaQuotes Software Corp." #property link "https://mql5.com" #property version "1.00" #property description "Simple Support/Resistance indicator" #property indicator_chart_window #property indicator_buffers 2 #property indicator_plots 2 //--- plot Resistance #property indicator_label1 "Resistance" #property indicator_type1 DRAW_LINE #property indicator_color1 clrRed #property indicator_style1 STYLE_SOLID #property indicator_width1 2 //--- plot Support #property indicator_label2 "Support" #property indicator_type2 DRAW_LINE #property indicator_color2 clrGreen #property indicator_style2 STYLE_SOLID #property indicator_width2 2 //--- input parameters input uint InpPeriod = 15; // Period input uint InpBarsBefore = 50; // Lines length //--- indicator buffers double BufferRes[]; double BufferSup[]; //--- global variables int period; int bars_before; //+------------------------------------------------------------------+ //| Custom indicator initialization function | //+------------------------------------------------------------------+ int OnInit() { //--- set global variables period=int(InpPeriod<1 ? 1 : InpPeriod); bars_before=int(InpBarsBefore<2 ? 2 : InpBarsBefore); //--- indicator buffers mapping SetIndexBuffer(0,BufferRes,INDICATOR_DATA); SetIndexBuffer(1,BufferSup,INDICATOR_DATA); //--- setting indicator parameters IndicatorSetString(INDICATOR_SHORTNAME,"Support/Resistance("+(string)period+")"); IndicatorSetInteger(INDICATOR_DIGITS,Digits()); //--- setting buffer arrays as timeseries ArraySetAsSeries(BufferRes,true); ArraySetAsSeries(BufferSup,true); //--- return(INIT_SUCCEEDED); } //+------------------------------------------------------------------+ //| Custom indicator iteration function | //+------------------------------------------------------------------+ 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[]) { //--- Проверка на минимальное колиество баров для расчёта if(rates_total1) { limit=rates_total-1; ArrayInitialize(BufferRes,EMPTY_VALUE); ArrayInitialize(BufferSup,EMPTY_VALUE); } //--- Подготовка данных int bl=Lowest(period,1); int bh=Highest(period,1); if(bl==WRONG_VALUE || bh==WRONG_VALUE) return 0; double min=low[bl]; double max=high[bh]; double Sup=2*min-max; double Res=2*max-min; //--- Расчёт индикатора for(int i=0; i