RSI digital Kahler

#property indicator_separate_window
#property indicator_buffers 3
#property indicator_color1  clrDeepSkyBlue
#property indicator_color2  clrSandyBrown
#property indicator_color3  clrSandyBrown
#property indicator_width1  3
#property indicator_width2  3
#property indicator_width3  3
#property strict

enum enPrices
{
   pr_close,      // Close
   pr_open,       // Open
   pr_high,       // High
   pr_low,        // Low
   pr_median,     // Median
   pr_typical,    // Typical
   pr_weighted,   // Weighted
   pr_average,    // Average (high+low+open+close)/4
   pr_medianb,    // Average median body (open+close)/2
   pr_tbiased,    // Trend biased price
   pr_haclose,    // Heiken ashi close
   pr_haopen ,    // Heiken ashi open
   pr_hahigh,     // Heiken ashi high
   pr_halow,      // Heiken ashi low
   pr_hamedian,   // Heiken ashi median
   pr_hatypical,  // Heiken ashi typical
   pr_haweighted, // Heiken ashi weighted
   pr_haaverage,  // Heiken ashi average
   pr_hamedianb,  // Heiken ashi median body
   pr_hatbiased   // Heiken ashi trend biased price
};

extern int                rperiod    = 14;          // Calculating period
extern enPrices           rprice     = pr_close;    // Price
extern int                speriod    = 14;          // Smoothing period
extern ENUM_MA_METHOD     smethod    = MODE_SMA;    // Smoothing method
extern int                linesWidth =  3;          // Lines width
extern double             fastr      =  8;          // Fast ratio
extern double             slowr      = 22;          // Slow ratio
extern double             levelUp                  =  0.8;           // Upper level
extern double             levelDown                = -0.8;           // Lower level
extern bool               alertsLinesOnSlope       = true;           // Alerts and lines on slope change (true) or levels cross (false)
extern bool               verticalLinesVisible     = false;          // Show vertical lines
extern string             verticalLinesID          = "RSIC Lines1";  // Vertical lines unique ID
extern color              verticalLinesUpColor     = clrDeepSkyBlue; // Color for down cross
extern color              verticalLinesDownColor   = clrSandyBrown;  // Color for up cross
extern ENUM_LINE_STYLE    verticalLinesStyle       = STYLE_DOT;      // Lines style
extern int                verticalLinesWidth       = 0;              // Lines width
extern bool               alertsOn                 = false;          // Turn alerts on?
extern bool               alertsOnCurrent          = true;           // Alerts on current (still opened) bar
extern bool               alertsMessage            = true;           // Alerts should show pop-up message
extern bool               alertsSound              = false;          // Alerts should play alert sound
extern bool               alertsPushNotif          = false;          // Alerts should send push notification
extern bool               alertsEmail              = false;          // Alerts should send email

double buffer[];
double bufferda[];
double bufferdb[];
double trend[];
double work[];

int init()
{
      // код доступен только после оплаты
   }
int deinit() 
{ 
   string lookFor       = verticalLinesID+":";
   int    lookForLength = StringLen(lookFor);
      for (int i=ObjectsTotal()-1; i>=0; i--)
      {
         string name = ObjectName(i);
         if (StringSubstr(name,0,lookForLength) == lookFor) ObjectDelete(name);
      }
   return(0);
}

int start()
{
      // код доступен только после оплаты
   }

void manageAlerts()
{
   if (alertsOn)
   {
      int whichBar = 1; if (alertsOnCurrent) whichBar = 0;
      if (trend[whichBar] != trend[whichBar+1])
      {
         if (trend[whichBar] ==  1) doAlert(whichBar,"up");
         if (trend[whichBar] == -1) doAlert(whichBar,"down");
      }
   }
}

void doAlert(int forBar, string doWhat)
{
   static string   previousAlert="nothing";
   static datetime previousTime;
   string message;

   if (previousAlert != doWhat || previousTime != Time[forBar]) {
       previousAlert  = doWhat;
       prev

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