Indicador_BB+EMA

//+------------------------------------------------------------------+
//|                                                        bbema.mq5 |
//|                        Copyright 2020, MetaQuotes Software Corp. |
//|                                             https://www.mql5.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2020, MetaQuotes Software Corp."
#property link      "https://www.mql5.com"
#property version   "1.00"
#property indicator_chart_window
#property indicator_buffers 7
#property indicator_plots   7
//--- plot call
#property indicator_label1  "call"
#property indicator_type1   DRAW_ARROW
#property indicator_color1  clrLightSkyBlue
#property indicator_style1  STYLE_SOLID
#property indicator_width1  10
//--- plot put
#property indicator_label2  "put"
#property indicator_type2   DRAW_ARROW
#property indicator_color2  clrOrchid
#property indicator_style2  STYLE_SOLID
#property indicator_width2  10
//--- plot signal
#property indicator_label3  "signal"
#property indicator_type3   DRAW_ARROW
#property indicator_color3  clrPurple
#property indicator_style3  STYLE_SOLID
#property indicator_width3  10
//--- plot ema
#property indicator_label4  "ema"
#property indicator_type4   DRAW_LINE
#property indicator_color4  clrHotPink
#property indicator_style4  STYLE_SOLID
#property indicator_width4  1
//--- plot upper
#property indicator_label5  "upper"
#property indicator_type5   DRAW_LINE
#property indicator_color5  clrRed
#property indicator_style5  STYLE_SOLID
#property indicator_width5  1
//--- plot mid
#property indicator_label6  "mid"
#property indicator_type6   DRAW_LINE
#property indicator_color6  clrWhite
#property indicator_style6  STYLE_SOLID
#property indicator_width6  1
//--- plot lower
#property indicator_label7  "lower"
#property indicator_type7   DRAW_LINE
#property indicator_color7  clrPaleGreen
#property indicator_style7  STYLE_SOLID
#property indicator_width7  1
//--- input parameters
input int      Input1;
input int      Input2;
//--- indicator buffers
double         callBuffer[];
double         putBuffer[];
double         signalBuffer[];
double         emaBuffer[];
double         upperBuffer[];
double         midBuffer[];
double         lowerBuffer[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int OnInit()
  {
//--- indicator buffers mapping
   SetIndexBuffer(0,callBuffer,INDICATOR_DATA);
   SetIndexBuffer(1,putBuffer,INDICATOR_DATA);
   SetIndexBuffer(2,signalBuffer,INDICATOR_DATA);
   SetIndexBuffer(3,emaBuffer,INDICATOR_DATA);
   SetIndexBuffer(4,upperBuffer,INDICATOR_DATA);
   SetIndexBuffer(5,midBuffer,INDICATOR_DATA);
   SetIndexBuffer(6,lowerBuffer,INDICATOR_DATA);
//--- setting a code from the Wingdings charset as the property of PLOT_ARROW
   PlotIndexSetInteger(0,PLOT_ARROW,159);
   PlotIndexSetInteger(1,PLOT_ARROW,159);
   PlotIndexSetInteger(2,PLOT_ARROW,159);

//---
   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[])
  {
//---
   CopyBuffer(iMA(_Symbol,_Period,100,0,MODE_EMA,PRICE_OPEN) ,0,0,rates_total, emaBuffer);

   //CopyBuffer(iBands(_Symbol,_Period,20,0,2.5,PRICE_OPEN),0,0,rates_total, midBuffer);
   CopyBuffer(iBands(_Symbol,_Period,20,0,2.5,PRICE_CLOSE),1,0,rates_total, upperBuffer);
   CopyBuffer(iBands(_Symbol,_Period,20,0,2.5,PRICE_CLOSE),2,0,rates_total, lowerBuffer);

   for(int i=1; i<rates_total; i++){

        if(emaBuffer[i]>upperBuffer[i]){
          putBuffer[i]= high[i] >= upperBuffer[i] ? high[i] : 0;
        }
        else{
            putBuffer[i]=0;
        }


        if(emaBuffer[i]<lowerBuffer[i]){
          callBuffer[i]= low[i] <= lowerBuffer[i] ? low[i] : 0;
        }
        else{
            callBuffer[i]=0;
        }


   }

//--- return value of prev_calculated for next call
   return(rates_total);
  }
//+------------------------------------------------------------------+