//+------------------------------------------------------------------+ //| RSI Arrow.mq5 | //| Copyright © 2017, Vladimir Karputov | //| http://wmua.ru/slesar/ | //+------------------------------------------------------------------+ #property copyright "Copyright © 2017, Vladimir Karputov" #property link "http://wmua.ru/slesar/" #property version "1.002" #property description "The indicator draws the \"Arrow Up\" object when" #property description "the RSI crosses up the \"Level Up\" level" #property description "and draws \"Arrow Down\" object when" #property description "the RSI crosses down the \"Level Down\" level" #property indicator_chart_window #property indicator_buffers 3 #property indicator_plots 2 //--- plot Arrows #property indicator_label1 "RSI Arrow UP" #property indicator_type1 DRAW_ARROW #property indicator_color1 clrBlue #property indicator_width1 1 #property indicator_label2 "RSI Arrow DOWN" #property indicator_type2 DRAW_ARROW #property indicator_color2 clrRed #property indicator_width2 1 //--- input parameters sinput string _0_="*-*-*-*-*-*"; // Arrows parameters input double InpLevelUP=70.0; // Level Up input ushort InpCodeUP=241; // Symbol code Up input double InpLevelDOWN=30.0; // Level Down input ushort InpCodeDOWN=242; // Symbol code Down sinput string _1_="*-*-*-*-*-*"; // RSI parameters input int ma_period=14; // period of averaging input ENUM_APPLIED_PRICE applied_price=PRICE_CLOSE; // type of price //--- indicator buffer double ArrowsBufferUP[]; double ArrowsBufferDOWN[]; double iRSIBuffer[]; //--- variable for storing the handle of the iRSI indicator int handle; //--- we will keep the number of values in the Relative Strength Index indicator int bars_calculated=0; //+------------------------------------------------------------------+ //| Custom indicator initialization function | //+------------------------------------------------------------------+ int OnInit() { //--- indicator buffers mapping SetIndexBuffer(0,ArrowsBufferUP,INDICATOR_DATA); SetIndexBuffer(1,ArrowsBufferDOWN,INDICATOR_DATA); SetIndexBuffer(2,iRSIBuffer,INDICATOR_CALCULATIONS); //--- Define the symbol code for drawing in PLOT_ARROW PlotIndexSetInteger(0,PLOT_ARROW,InpCodeUP); PlotIndexSetInteger(1,PLOT_ARROW,InpCodeDOWN); //--- Set the vertical shift of arrows in pixels PlotIndexSetInteger(0,PLOT_ARROW_SHIFT,-5); PlotIndexSetInteger(1,PLOT_ARROW_SHIFT,5); //--- Set as an empty value 0 PlotIndexSetDouble(0,PLOT_EMPTY_VALUE,0); PlotIndexSetDouble(1,PLOT_EMPTY_VALUE,0); //--- create handle of the indicator handle=iRSI(Symbol(),Period(),ma_period,applied_price); //--- if the handle is not created if(handle==INVALID_HANDLE) { //--- tell about the failure and output the error code PrintFormat("Failed to create handle of the iRSI indicator for the symbol %s/%s, error code %d", Symbol(), EnumToString(Period()), GetLastError()); //--- the indicator is stopped early return(INIT_FAILED); } //--- show the symbol/timeframe the Relative Strength Index indicator is calculated for string short_name=StringFormat("RSI Arrow(%s/%s, %d, %d)",Symbol(),EnumToString(Period()), ma_period,applied_price); IndicatorSetString(INDICATOR_SHORTNAME,short_name); //--- normal initialization of the indicator 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[]) { //--- number of values copied from the iRSI indicator int values_to_copy; //--- determine the number of values calculated in the indicator int calculated=BarsCalculated(handle); if(calculated<=0) { PrintFormat("BarsCalculated() returned %d, error code %d",calculated,GetLastError()); return(0); } //--- if it is the first start of calculation of the indicator or if the number of values in the iRSI indicator changed //---or if it is necessary to calculated the indicator for two or more bars (it means something has changed in the price history) int limit=0; if(prev_calculated==0 || calculated!=bars_calculated || rates_total>prev_calculated+1) { //--- if the iRSIBuffer array is greater than the number of values in the iRSI indicator for symbol/period, then we don't copy everything //--- otherwise, we copy less than the size of indicator buffers if(calculated>rates_total) values_to_copy=rates_total; else values_to_copy=calculated; } else { //--- it means that it's not the first time of the indicator calculation, and since the last call of OnCalculate() //--- for calculation not more than one bar is added values_to_copy=(rates_total-prev_calculated)+1; limit=rates_total-values_to_copy; } //--- fill the array with values of the iRSI indicator //--- if FillArrayFromBuffer returns false, it means the information is nor ready yet, quit operation if(!FillArrayFromBuffer(iRSIBuffer,handle,values_to_copy)) return(0); //--- for(int i=limit;iInpLevelUP) ArrowsBufferUP[i]=high[i]; else ArrowsBufferUP[i]=0.0; if(iRSIBuffer[i]