Abu Gefx Indicator for MT5

//+------------------------------------------------------------------+ //| Scalping Indicator for MT5                                       | //+------------------------------------------------------------------+ #property indicator_chart_window #property indicator_buffers 3  // RSI input int RSI_Period = 14; // BB input int BB_Period = 20; input double BB_Deviation = 2.0;  double bb_up[], bb_mid[], bb_dn[];  int OnInit() {    SetIndexBuffer(0, bb_up);    SetIndexBuffer(1, bb_mid);    SetIndexBuffer(2, bb_dn);        PlotIndexSetString(0, "BB Upper");    PlotIndexSetString(1, "BB Mid");    PlotIndexSetString(2, "BB Lower");        return(INIT_SUCCEEDED); }  int OnCalculate(const int rates_total, const int prev_calculated, const int begin,                 const double &open[], const double &high[], const double &low[], const double &close[],                 const long &tick_volume[], const long &volume[], const int &spread[]) {        double rsi_val = iRSI(_Symbol, _Period, RSI_Period, PRICE_CLOSE);        double bb_up_val, bb_mid_val, bb_dn_val;    bb_up_val = iBands(_Symbol, _Period, BB_Period, BB_Deviation, 0, PRICE_CLOSE, MODE_UPPER);    bb_mid_val = iBands(_Symbol, _Period, BB_Period, BB_Deviation, 0, PRICE_CLOSE, MODE_MAIN);    bb_dn_val = iBands(_Symbol, _Period, BB_Period, BB_Deviation, 0, PRICE_CLOSE, MODE_LOWER);        bb_up[0] = bb_up_val;    bb_mid[0] = bb_mid_val;    bb_dn[0] = bb_dn_val;        // Visual alert (optional)    if (rsi_val < 30 && close[0] <= bb_dn_val) Comment("BUY SIGNAL");    if (rsi_val > 70 && close[0] >= bb_up_val) Comment("SELL SIGNAL");        return(rates_total); }